Assignment for optimization in flow of heat

1. Optimization in Flow of Heat GroupA6 Bermio, Amelou Domingo, Jean Francisco, Cresta Suaco, Kaylee

5. 12. A condenser for a distillation unit must be designed to condense 2500 kg/h of vapor. The effective condensation temperature for the vapor is 145oC.The heat of condensation for the vapor is 315000 J/kg. Cooling water is available at 15oC.The cost of cooling water is $25/1000m3.The optimum Heat Transfer Coefficient is 300 W/m2K.The cost of the installed heat exchanger is $400/m2 and life of the equipment is 20 years. The heat capacity of water is 4184 J/kgK. If the condenser is to operate 7200 hrs/yr, determine the cooling water flow rate in kg/hr and exit temperature for optimum economic conditions.