Lanco amarkantak power ltd korba mechanical vocational training report 2 haxxo24 i~i

1. 26th
May -26th
Jun
2011
Under Guidance:
Shri K.D.N. Singh
Submitted by:
Abhinav Sharma,
Rohit Shrivastava,
Vikas Pandey
LANCO PROJECT
CHHATTISGARH INDIA
A Project Report on the Partial Fulfillment of
Vocational Training on
TURBINE & GENERATOR DECK

2. ACKNOWLEDGEMENT
The project bears imprints of many people. I take this opportunity to
express my gratitude to all those people who have been instrumental
in the successful completion of this project.
I would like to show my greatest appreciation to Mr. K.D.N.Singh
(HOD Turbine).I can’t say thank you enough for their tremendous
support and help. I feel motivated and encouraged every time I attend
their meeting. Without their encouragement and guidance this project
would not have materialized.
I would like to convey my special Thanks and gratitude to Mr.Sudip
Banerjee –Officer HR, for his consistent support and guidance during
the three weeks of vocational training. .
The guidance and support received from all the TG team members of
Lanco Infratech Ltd., including Mr. Milind Bhajan & Mr. Vinit
Pradhan was vital for the success of the project. I am thankful for
their constant support and help.
PROJECT ON TURBINE DECK Page 2

3. PROJECT ON TURBINE DECK Page 3
INTRODUCTION
LANCO Power Ltd (LPL) is setting up 2x660 MW Coal based power
project near Pathadi - Saragbundia villages on the Champa - Korba State
Highway in Chhattisgarh, India. The commissioning schedule of 36 months
for Unit III and 40 Months for Unit IV categorizes these as fast track
projects.
Upon attaining the required statutory clearances for Unit 3, the
implementation of the project with supercritical technology started from 1
January 2010 as the zero date. Letter of Acceptance for the supply of coal
has been obtained for the third unit and Long Term Coal linkage has been
obtained for fourth unit. Power Finance Corporation, the lead lender for
the project has already appraised the project and the project is well poised
to achieve financial closure shortly.
The ultimate capacity of the LANCO Power Plant after completion of
Phase IV would be around 1920 MW. |~|
Contact
CORPORATE OFFICE
LANCO Power Ltd
Plot No. 397, Phase-III,
Udyog Vihar, Gurgaon - 122016
Haryana - India.
Tel : +91-124 - 4741000/01/02/03
Fax : +91-124 - 4741024
Email: lapl@lancogroup.com
PROJECT OFFICE
LANCO Thermal Power
Station
Village-Pathadi,P.O-Tilkeja
Dist.- Korba
Chhattisgarh-495 674, India
Tel : 07759 279238,279123
Fax : 07759 279370
email : lapl@lancogroup.com
MISSION
Development of society through entrepreneurship.
VISION
Most admired integrated infrastructure enterprise.

4. INDEX
Content
1. Setup of Turbine Deck
2. Strength Checking UT Machine
3. Setup of Condenser Foundation
4. Centre Line Marking
5. Blue Matching of Foundation Plates
PROJECT ON TURBINE DECK Page 4

5. What we learn in our vocational training
During our vocational training at Lanco we are with the Turbine team. We learn the
following things
1. Setup of Turbine Deck
2. Strength Checking UT
3. Setup of Condenser Foundation
4. Centre Line Marking
5. Blue Matching of Foundation Plates
Setup of Turbine Deck
Turbine deck consists of three floors
1. Ground Floor- In this floor mainly, only the condenser is present.
2. First Floor or Massine Floor-- In this floor, turbine & generators are present.
3. Second Floor or Operating Floor- - In this floor, operating machines are
placed.
Strength checking by UT Machine
In ultrasonic testing machine(UT), very short ultrasonic pulse-waves with center
frequencies ranging from 0.1-15 MHz and occasionally up to 50 MHz are launched
into materials to detect internal flaws or to characterize materials. The technique is
also commonly used to determine the thickness of the test object.
PROJECT ON TURBINE DECK Page 5

6. Ultrasonic testing is often performed on steel and other metals and alloys, though it
can also be used on concrete, wood and composites. It is a form of non-destructive
testing used in many industries.
It is done to check the strength of the foundation. It can show the air bubbles
between the concrete through waves. It is measure done to prevent the foundation
from being collapsed.|~|
Fig of foundation in which strength checking is done.
Fig 1- before checking fig. 2- during checking (no air bubble) fig. 3- during checking (air bubble present)
The concretes of the foundations are marked per square feet by a special paste and
are connected to the equipment which is connected to a computer monitor.
PROJECT ON TURBINE DECK Page 6

7. Continuous waves are seen through the monitor & if the air bubble is present then
there is a gap in the waves. It took about 10 days to check a unit turbine of power
plant.
How it works
In ultrasonic testing, an ultrasound transducer connected to a diagnostic machine is
passed over the object being inspected. The transducer is typically separated from
the test object by a couplant (such as oil) or by water, as in immersion testing.
There are two methods of receiving the ultrasound waveform, reflection and
attenuation. In reflection (or pulse-echo) mode, the transducer performs both the
sending and the receiving of the pulsed waves as the "sound" is reflected back to the
device. Reflected ultrasound comes from an interface, such as the back wall of the
object or from an imperfection within the object. The diagnostic machine displays
these results in the form of a signal with an amplitude representing the intensity of the
reflection and the distance, representing the arrival time of the reflection. In
attenuation (or through-transmission) mode, a transmitter sends ultrasound through
one surface, and a separate receiver detects the amount that has reached it on
another surface after traveling through the medium. Imperfections or other conditions
in the space between the transmitter and receiver reduce the amount of sound
transmitted, thus revealing their presence. Using the couplant increases the
efficiency of the process by reducing the losses in the ultrasonic wave energy due to
separation between the surfaces.
Setup of Condenser Foundation
PROJECT ON TURBINE DECK Page 7

8. Centre Line Marking
It is done to check the alignment of the foundations. If all the pedestals will not be in
same alignment i.e. not proper balanced and coaxial then it will result with decrease
in efficiency and even it may collapse. We have seen it on pedestals of condenser.
Blue Matching
PROJECT ON TURBINE DECK Page 8
Pedestals
of
condenser
foundation
s

9. It is done for finishing of the condenser plates. A standard specimen is available
which helps to finish the surfaces of the condenser plates. The work piece is firstly
polished with a special liquid called as blue liquid. Later the standard specimen is
rubbed over the colored portion. After rubbing, standard specimen is removed & the
work piece is examined whether it is fit or not. If not then the surface is finished by
grinding.|~|
PROJECT ON TURBINE DECK Page 9

10. It is done for finishing of the condenser plates. A standard specimen is available
which helps to finish the surfaces of the condenser plates. The work piece is firstly
polished with a special liquid called as blue liquid. Later the standard specimen is
rubbed over the colored portion. After rubbing, standard specimen is removed & the
work piece is examined whether it is fit or not. If not then the surface is finished by
grinding.|~|
PROJECT ON TURBINE DECK Page 9