The WATS approach to assessment was developed as part of an LTSN Engineering Mini-Project, funded at the University of Hertfordshire which aimed to develop a set of 'student unique' tutorial sheets to actively encourage and improve student participation within a first year first ‘fluid mechanics and thermodynamics’ module. Please see the accompanying Mini-Project Report “Improving student success and retention through greater participation and tackling student-unique tutorial sheets” for more information. The WATS cover core Fluid Mechanics and Thermodynamics topics at first year undergraduate level. 11 tutorial sheets and their worked solutions are provided here for you to utilise in your teaching. The variables within each question can be altered so that each student answers the same question but will need to produce a unique solution. What follows is a set of STUDENT UNIQUE SHEETS for WATS 10.

1. Fluid Mechanics and Thermodynamics<br />Weekly Assessed Tutorial Sheets,<br />Student Sheets: WATS 10.<br />The WATS approach to assessment was developed as part of an LTSN Engineering Mini-Project, funded at the University of Hertfordshire which aimed to develop a set of 'student unique' tutorial sheets to actively encourage and improve student participation within a first year first ‘fluid mechanics and thermodynamics’ module. Please see the accompanying Mini-Project Report “Improving student success and retention through greater participation and tackling student-unique tutorial sheets” for more information.<br />The WATS cover core Fluid Mechanics and Thermodynamics topics at first year undergraduate level. 11 tutorial sheets and their worked solutions are provided here for you to utilise in your teaching. The variables within each question can be altered so that each student answers the same question but will need to produce a unique solution.<br />FURTHER INFORMATION<br />Please see http://tinyurl.com/2wf2lfh to access the WATS Random Factor Generating Wizard. <br />There are also explanatory videos on how to use the Wizard and how to implement WATS available at http://www.youtube.com/user/MBRBLU#p/u/7/0wgC4wy1cV0 and http://www.youtube.com/user/MBRBLU#p/u/6/MGpueiPHpqk.<br />For more information on WATS, its use and impact on students please contact Mark Russell, School of Aerospace, Automotive and Design Engineering at University of Hertfordshire.<br /> <br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number1EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.33 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 325 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.74 m.<br />Q2) 18.30 kg/s of air enters a turbine at 980 °C with a velocity of 89 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 174 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.33 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number2EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.26 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 415 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.53 m.<br />Q2) 15.40 kg/s of air enters a turbine at 640 °C with a velocity of 75 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 136 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.59 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number3EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.45 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 8 bars. Heat is added until the final temperature is 220 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.38 m.<br />Q2) 11.00 kg/s of air enters a turbine at 570 °C with a velocity of 54 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 138 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.21 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number4EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.29 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 5 bars. Heat is added until the final temperature is 270 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.64 m.<br />Q2) 9.10 kg/s of air enters a turbine at 640 °C with a velocity of 89 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 154 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.72 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number5EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.28 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 400 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.40 m.<br />Q2) 8.40 kg/s of air enters a turbine at 650 °C with a velocity of 65 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 170 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.53 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number6EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.23 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 405 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.63 m.<br />Q2) 6.80 kg/s of air enters a turbine at 780 °C with a velocity of 84 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 134 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.17 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number7EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.29 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 5 bars. Heat is added until the final temperature is 280 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.65 m.<br />Q2) 11.80 kg/s of air enters a turbine at 1030 °C with a velocity of 52 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 110 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.77 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number8EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.26 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 450 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.42 m.<br />Q2) 14.10 kg/s of air enters a turbine at 500 °C with a velocity of 70 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 114 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.17 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number9EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.26 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 315 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.63 m.<br />Q2) 5.80 kg/s of air enters a turbine at 1130 °C with a velocity of 98 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 126 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.86 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number10EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.50 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 230 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.42 m.<br />Q2) 7.40 kg/s of air enters a turbine at 700 °C with a velocity of 69 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 146 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.87 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number11EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.42 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 435 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.34 m.<br />Q2) 13.10 kg/s of air enters a turbine at 1160 °C with a velocity of 67 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 116 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.08 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number12EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.39 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 8 bars. Heat is added until the final temperature is 240 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.41 m.<br />Q2) 5.60 kg/s of air enters a turbine at 800 °C with a velocity of 99 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 148 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.66 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number13EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.47 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 255 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.71 m.<br />Q2) 17.90 kg/s of air enters a turbine at 610 °C with a velocity of 54 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 128 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.73 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number14EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.21 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 395 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.58 m.<br />Q2) 10.20 kg/s of air enters a turbine at 860 °C with a velocity of 75 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 174 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.20 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number15EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.25 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 5 bars. Heat is added until the final temperature is 355 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.67 m.<br />Q2) 12.80 kg/s of air enters a turbine at 1150 °C with a velocity of 84 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 160 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.58 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number16EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.50 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 335 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.63 m.<br />Q2) 9.30 kg/s of air enters a turbine at 1080 °C with a velocity of 75 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 164 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.20 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number17EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.46 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 385 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.36 m.<br />Q2) 19.80 kg/s of air enters a turbine at 640 °C with a velocity of 90 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 110 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.00 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number18EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.47 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 295 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.54 m.<br />Q2) 15.20 kg/s of air enters a turbine at 690 °C with a velocity of 64 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 112 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 5.00 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number19EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.43 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 215 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.42 m.<br />Q2) 9.80 kg/s of air enters a turbine at 540 °C with a velocity of 89 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 112 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.94 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number20EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.31 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 330 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.46 m.<br />Q2) 16.30 kg/s of air enters a turbine at 680 °C with a velocity of 84 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 120 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.86 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number21EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.50 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 430 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.47 m.<br />Q2) 6.30 kg/s of air enters a turbine at 940 °C with a velocity of 79 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 168 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.54 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number22EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.28 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 290 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.69 m.<br />Q2) 6.60 kg/s of air enters a turbine at 950 °C with a velocity of 52 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 124 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.99 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number23EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.26 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 340 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.64 m.<br />Q2) 12.00 kg/s of air enters a turbine at 670 °C with a velocity of 98 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 166 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.58 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number24EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.21 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 395 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.36 m.<br />Q2) 5.60 kg/s of air enters a turbine at 1200 °C with a velocity of 74 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 124 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.35 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number25EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.47 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 340 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.31 m.<br />Q2) 14.90 kg/s of air enters a turbine at 1070 °C with a velocity of 88 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 178 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.67 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number26EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.25 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 365 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.65 m.<br />Q2) 5.30 kg/s of air enters a turbine at 620 °C with a velocity of 72 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 136 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.23 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number27EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.27 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 320 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.41 m.<br />Q2) 13.10 kg/s of air enters a turbine at 840 °C with a velocity of 82 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 166 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.14 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number28EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.20 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 365 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.68 m.<br />Q2) 12.00 kg/s of air enters a turbine at 510 °C with a velocity of 74 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 126 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.50 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number29EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.39 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 385 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.35 m.<br />Q2) 12.80 kg/s of air enters a turbine at 850 °C with a velocity of 96 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 176 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.73 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number30EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.41 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 245 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.52 m.<br />Q2) 16.60 kg/s of air enters a turbine at 770 °C with a velocity of 59 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 132 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.67 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number31EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.27 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 395 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.62 m.<br />Q2) 15.60 kg/s of air enters a turbine at 750 °C with a velocity of 89 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 140 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.01 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number32EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.35 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 375 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.33 m.<br />Q2) 13.30 kg/s of air enters a turbine at 830 °C with a velocity of 77 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 160 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.71 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number33EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.21 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 300 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.46 m.<br />Q2) 9.60 kg/s of air enters a turbine at 650 °C with a velocity of 78 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 118 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.53 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number34EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.30 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 260 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.61 m.<br />Q2) 7.50 kg/s of air enters a turbine at 670 °C with a velocity of 68 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 134 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.59 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number35EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.39 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 320 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.69 m.<br />Q2) 8.30 kg/s of air enters a turbine at 860 °C with a velocity of 74 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 122 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.79 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number36EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.33 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 5 bars. Heat is added until the final temperature is 235 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.60 m.<br />Q2) 12.60 kg/s of air enters a turbine at 670 °C with a velocity of 58 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 170 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.53 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number37EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.26 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 5 bars. Heat is added until the final temperature is 395 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.67 m.<br />Q2) 19.90 kg/s of air enters a turbine at 1100 °C with a velocity of 73 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 122 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.86 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number38EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.35 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 230 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.75 m.<br />Q2) 19.60 kg/s of air enters a turbine at 950 °C with a velocity of 53 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 156 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.13 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number39EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.34 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 245 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.33 m.<br />Q2) 18.50 kg/s of air enters a turbine at 620 °C with a velocity of 66 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 114 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 2.84 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number40EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.46 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 310 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.38 m.<br />Q2) 16.40 kg/s of air enters a turbine at 800 °C with a velocity of 56 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 114 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.10 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number41EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.26 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 445 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.42 m.<br />Q2) 10.80 kg/s of air enters a turbine at 580 °C with a velocity of 60 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 154 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.00 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number42EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.23 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 340 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.44 m.<br />Q2) 10.90 kg/s of air enters a turbine at 1180 °C with a velocity of 90 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 174 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.82 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number43EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.44 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 8 bars. Heat is added until the final temperature is 345 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.79 m.<br />Q2) 14.80 kg/s of air enters a turbine at 970 °C with a velocity of 53 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 124 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.74 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number44EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.40 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 395 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.39 m.<br />Q2) 11.60 kg/s of air enters a turbine at 1050 °C with a velocity of 91 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 136 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.66 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number45EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.29 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 300 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.33 m.<br />Q2) 14.10 kg/s of air enters a turbine at 530 °C with a velocity of 87 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 134 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.22 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number46EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.20 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 5 bars. Heat is added until the final temperature is 275 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.70 m.<br />Q2) 13.80 kg/s of air enters a turbine at 880 °C with a velocity of 53 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 166 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.02 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number47EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.29 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 7 bars. Heat is added until the final temperature is 435 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.60 m.<br />Q2) 19.40 kg/s of air enters a turbine at 1100 °C with a velocity of 99 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 130 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.81 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number48EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.44 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 8 bars. Heat is added until the final temperature is 325 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.48 m.<br />Q2) 18.00 kg/s of air enters a turbine at 720 °C with a velocity of 95 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 118 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 4.09 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number49EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.39 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 8 bars. Heat is added until the final temperature is 270 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.43 m.<br />Q2) 14.40 kg/s of air enters a turbine at 850 °C with a velocity of 94 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 110 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.26 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Fluid Mechanics and Thermodynamics.<br />Weekly Assessed Tutorial Sheet 10.<br />Student Number50EENameHand out dateHand in date<br />Q1). A cylinder of diameter 0.35 m, fitted with a gas tight, frictionless piston contains dry saturated steam at 6 bars. Heat is added until the final temperature is 310 ° C. Determine <br />i) the work done (kJ) [3 dp](2 marks)<br />ii) the heat supplied (kJ)[2 dp](1 mark)<br />iii) the change in internal energy (kJ). [2 dp](2 marks)<br />You may assume that the piston is free to rise as a consequence of any expansion and at the start of the process the distance between the piston and the bottom of the cylinder is 0.75 m.<br />Q2) 7.80 kg/s of air enters a turbine at 580 °C with a velocity of 88 m/s. The air expands adiabatically as it passes through the turbine and leaves with a velocity of 136 m/s. It then enters a diffuser where the velocity is reduced to a negligible value. If the turbine produces 3.45 MW calculate <br />i) The temperature of the air at exit from the turbine (C)[1 dp](3 marks)<br />ii)The temperature of the air at exit from the diffuser (C)[1 dp](3 marks)<br />You may assume that the Cp for air is constant and has a value of 1.005 kJ/kg K.<br />Credits<br />This resource was created by the University of Hertfordshire and released as an open educational resource through the Open Engineering Resources project of the HE Academy Engineering Subject Centre. The Open Engineering Resources project was funded by HEFCE and part of the JISC/HE Academy UKOER programme.<br />© University of Hertfordshire 2009<br />This work is licensed under a Creative Commons Attribution 2.0 License. <br />The name of the University of Hertfordshire, UH and the UH logo are the name and registered marks of the University of Hertfordshire. To the fullest extent permitted by law the University of Hertfordshire reserves all its rights in its name and marks which may not be used except with its written permission.<br />The JISC logo is licensed under the terms of the Creative Commons Attribution-Non-Commercial-No Derivative Works 2.0 UK: England & Wales Licence. All reproductions must comply with the terms of that licence.<br />The HEA logo is owned by the Higher Education Academy Limited may be freely distributed and copied for educational purposes only, provided that appropriate acknowledgement is given to the Higher Education Academy as the copyright holder and original publisher.<br />