INDUSTRIAL SUMMER TRAINING

At

NATIONAL THERMAL POWER CORPARATION

ANTA

Submitted in Partial Fulfillment of the Requirements for the Award of Degree of

Bachelor of Technology

In

Mechanical Engineering

By

NISHANT PAREEK

2013UME1791

Submitted By: Submitted To:

NISHANT PAREEK DR. GOPAL AGRAWAL

2013ume1791 Professor

Department of Mechanical Engineering

M.N.I.T. Jaipur, India

Mentor DR. G. D. AGRAWAL

Mr. Pankaj Vashistha Associate Professor

Assistant manager Department of Mechanical Engineering NTPC ANTA M.N.I.T. Jaipur, India

DEPARTMENT OF MECHANICAL ENGINEERING

MALAVIYA NATIONAL INSTITUTE OF TECHNOLOGY, JAIPUR

NOVEMBER 2016

i

DEPARTMENT OF MECHANICAL ENGINEERING

JAIPUR (RAJASTHAN)-302017

MALAVIYA NATIONAL INSTITUTE OF TECHNOLOGY

CERTIFICATE

This is certified that the training report entitled “Summer Training at NATIONAL THERMAL

POWER CORPORATION, ANTA” prepared by Nishant Pareek (ID-2013UME1791) in the partial

fulfillment of the award of the Degree Bachelor of Technology in Mechanical Engineering of Malaviya

National Institute of Technology, Jaipur is a record of bonafide summer training undertaken by him and

is hereby approved for submission. The contents of this training report, in full or in parts, have not been

submitted to any other Institute or University for the award of any degree or diploma.

Date: Dr. G. D. Agrawal

Associate Professor

Place: Department of Mechanical Engineering

MNIT, Jaipur, India

Dr. Gopal Agrawal

Professor

Department of Mechanical Engineering

MNIT, Jaipur, India

ii

DEPARTMENT OF MECHANICAL ENGINEERING

MALAVIYA NATIONAL INSTITUTE OF TECHNOLOGY

JAIPUR (RAJASTHAN)-302017

DECLARATION

I, Nishant Pareek, declare that the training report entitled “Summer Training at

NATIONAL THERMAL POWER CORPORATION, ANTA” being submitted by me in partial

fulfillment of the degree of B. Tech (Mechanical Engineering) is a summer training carried out

by and the contents of this training report, in full or in parts, have not been submitted to any other

Institute or University for the award of any degree or diploma. I also certify that no part of this

training report has been copied or borrowed from anyone else. In case any type of plagiarism is

found out, I will be solely and completely responsible for it.

Date: Nishant Pareek

B.Tech. (Mechanical Engg.)

Place: 2013UME1791

iii

ACKNOWLEDGEMENT

I take this opportunity to express my gratitude to everyone who supported me throughout

the course of this training. I am thankful for their inspiring guidance, invaluably

constructive criticism and friendly advice during the project work. I am sincerely

grateful to them for sharing their truthful and illuminating views on a number of issues

related to the company.

I wish to express my deep sense of gratitude to Mr. Pankaj Vashistha , who through his

benevolent guidance has enabled me to complete my project. He has been a great source

of inspiration to me all the way. Without his keen interest, incessant encouragement and

invaluable suggestions, this report could not have attained its present shape. I would also

like to thank entire NTPC staff for helping and supporting me in completing my project

work.

I would also like express my thanks to the entire shift in charges including workers and

engineers who listened to our problems and queries and helped us to sought it out. With

their guidance and advices, this training has become a memorable experience and helped

me to provide a partial insight of the industry.

.

(Nishant Pareek)

iv

ABSTRACT

NTPC is the name within Indian power sector established in 1975 with a contribution

of about 30% of Indian power sector today. NTPC is the 6th largest thermal power

generating utility in capacity.

NTPC Limited, a premier Public Sector Enterprise of Navratna status, established in

1975 is the largest power utility with an installed capacity of 28,644 MW through 26

power stations including 4 stations operated under joint venture companies. NTPC

has emerged as an integrated Power Major with presence in Hydro Power, Coal

mining, Oil & Gas exploration, Power Distribution & Trading and also to enter into

Nuclear Power Development. NTPC contributed 15.00% of the total electricity

generated in the country during 2006-07 with 20.71% share of total installed capacity

of the nation.

NTPC Limited is the largest thermal power generating company of India. A public

sector company, it was incorporated in the year 1975 to accelerate power

development in the country as a wholly owned company of the Government of India.

At present, Government of India holds 89.5% of the total equity shares of the

company and the balance 10.5% is held by FIIs, Domestic Banks, Public and others.

Within a span of 31 years, NTPC has emerged as a truly national power company,

with power generating facilities in all the major regions of the country. NTPC’s core

business is engineering, construction and operation of power generating plants. It

also provides consultancy in the area of power plant constructions and power

generation to companies in India and abroad.

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Table of Contents Nomenclature........................................................................................................................................x

Abbreviations............................................................................................................................xi

Chapter 1 Introduction ............................................................................................................... 1

1.1 Beginning of NTPC Limited ........................................................................................... 1

1.2 Power Generation in NTPC ............................................................................................. 1

1.3 Journey of NTPC ............................................................................................................ 2

1.4 NTPC Plants and their Capacity ...................................................................................... 3

1.4.1 Installed Capacity ..................................................................................................... 3

1.4.2 Coal Based Power Stations ........................................................................................ 3

1.4.3 Gas Based Power Stations. ......................................................................................... 5

1.4.4 Hydro Based Power Stations ..................................................................................... 5

x 1.4.5 Renewable Energy Projects ....................................................................................... 6

1.5 Technological Initiatives .................................................................................................. 6

1.6 Corporate Social Responsibility ....................................................................................... 7

1.7 NTPC'S Core Values ............................................................................................................. 7

1.8 NTPC Vision and Mission ………………………………………………………………………………………………………...7

1.9 NTPC Environment Policy .............................................................................................. 8

1.9.1 Environment Management System ............................................................................ 8

1.9.2 Pollution Control System ........................................................................................... 8

Chapter 2 Anta Thermal Power GAS Station ................................................................................. 12

2.1Introduction .................................................................................................................... 12

2.2 Location ......................................................................................................................... 12

2.3 Fuel Source .................................................................................................................... 13

2.4 Project Profile ................................................................................................................. 13

2.5 Salient Feature of ANTA Plant ..................................................................................... 13

2.6 Allocation of Power to States ......................................................................................... 15

Chapter 3 Power Production at NTPC ANTA ....................................................................... 16

3.1 Power Production Layout .............................................................................................. 16

3.2 Parts of Combined Cycle Power Plant .......................................................................... 19

Chapter 4 Gas Turbine and Steam Turbine Unit .................................................................... 29

4.1 Gas Turbine Unit .............................................................................................................. 30

vi

4.1.1 Introduction .............................................................................................................. 30

4.1.2 Gas Turbine Specification ........................................................................................ 30

4.1.3 Feature of ABB 13D2 Type Gas Turbine ................................................................ 30

4.1.4 Other Characterstics of Gas Turbine ........................................................................ 31

4.1.5 Genral Descriptions of Gas Turbine ......................................................................... 31

4.2 Steam Turbine Unit ............................................................................................................. 39

4.2.1 Introduction ............................................................................................................. 39

4.2.2 Basic Part of Steam Turbine .................................................................................... 40

4.2.3 Specification of Steam Turbine ............................................................................... 42

4.2.4 Working of Steam Turbine ...................................................................................... 42

4.2.5 Maintaiance of Steam Turbine ................................................................................ 43

4.3 Advantages over Gas Turbine Over Steam Turbine ....................................................... 45

4.4 Disadvantages .................................................................................................................. 45

Chapter 5 Waste Heat Recovery Boiler .................................................................................. 46

5.1 Introduction .................................................................................................................... 46

5.2 Working of WHRB ........................................................................................................ 46

5.3 Various Accessories Used in WHRB .................................................................................... 50

5.4 WHRB Specification.......................................................................................................51

5.5 Maintaince of WHRB …………………………………………………………………..52

Conclusion…………………………………………………………………………….54

References……………………………………………………………………………55

vii

List of Figures

S.NO. FIGURE NO. TITLE PAGE NO.

1. 1.1 A TYPICAL POWER PLANT OF NTPC 1

2. 1.2 Electrostatic Precipitators 9

3. 1.3 Neutralization Pits 10

4. 1.4 Dry Ash Extraction System (DAES) 10

5. 2.1 Bird view of NTPC anta 12

6. 3.1 combined cycle power plant 16

7. 3.2 HEAT BALANCE DIAGRAM 17

8. 3.3 FLOW PROCESS CHART OF COMBINED CYCLE

POWER PLANT

18

9. 3.4 The view of air intake system 19

10. 3.5 A sectional view of an air compressor 20

11. 3.6 STANDERD COMBUSTTION CHAMBER 20

12. 3.7 Gas Turbine 21

13. 3.8 Turbine and the generator mounted on a single shaft 22

14. 3.9 Step Up Transformer 22

15. 3.10 waste heat recovery boiler 23

16. 3.11 A steam turbine 24

17. 3.12 Condenser 25

18. 3.13 A view of the steam turbine generator 25

19. 3.14 A typical step up transformer 26

20. 3.15 De-aerator 27

21. 3.16 Cooling towers 28

22. 4.1 GAS TURBINE ELECTRICITY PRODUCTION PROCESS 29

23. 4.2 Compressor 32

24. 4.3 STANDERD SILO COMBITION CHAMBER 33

viii

25. 4.4 COMBUSTION CHAMBER 34

26. 4.5 Pipelines of gas source 36

27. 4.6 Oil system overview 37

28. 4.7 A steam turbine 41

29. 5.1 WASTE HEAT RECOVERY BOILER 46

30. 5.2 schematic diagram of a superheater 48

31. 5.3 schematic diagram of a ECONOMIZER 49

32. 5.4 An air preheater 49

33. 5.5 A deaerator 50

34. 5.6 Desuperheater 50

ix

List of Tables

S.NO.

TABLE NO.

TITLE

PAGE NO.

1. 1.1 INSTALLED CAPACITY 3

2. 1.2 Coal based power stations owned by NTPC 3

3. 1.3 Coal Based Joint Ventures/Subsidiaries 4

4. 1.4 gas based power stations owned by NTPC 5

5 1.5 Gas Based Joint Ventures/Subsidiaries 5

6 1.6 Hydro Based Power Projects 5

7 1.7 Solar Energy Projects Commissioned 6

8 2.1 Project profile of NTPC ANTA 13

9 2.2 ALLOCATION OF POWER TO STATES 15

10 4.1 GAS TURBINE SPECIFICATIONS 30

11 4.2 Specifications of HP Turbine

42

12 4.3 Specifications of LP Turbine

42

13 4.4 Wears out problems and their solutions 43

x

Nomenclature

AC Alternating Current

HP Horse Power

CC. Cubic Capacity

KVA Kilo Volt Ampere

KWH Kilo Watt Hour

RPM revolution per minute

xi

Abbreviations

DAES Dry Ash Extraction System

WHRB Waste Heat Recovery Boiler

GTG Gas Turbine unit

AWRS Ash Water Recycle System

IGCC Integrated Gasification Combined Cycle.

STG Steam Turbine Gas unit