Power Plant Engineering

Unit 2 - Diesel, Gas Turbine and Combined Power cycle

1. III Year- V Semester CME834- Power Plant Engineering Unit II- DIESEL, GAS TURBINE AND COMBINED CYCLE POWER PLANTS MECHANICAL ENGINEERING Prepared by Eanest Jebasingh B M.E., (Ph.D.) AP/Mech, MZCET Mount Zion College of Engineering and Technology, Pudukkottai 8/19/2023 EANEST/MECH/V/CME834/PPE/II 1

2. 8/19/2023 EANEST/MECH/V/CME834/PPE/II 2 Course Objective To study the coal based thermal power plants. To study the diesel, gas turbine and combined cycle power plants. To learn the basic of nuclear engineering and power plants. To learn the power from renewable energy. To study energy, economic and environmental issues of power plants.

3. 8/19/2023 EANEST/MECH/V/CME834/PPE/II 3 Course Outcome Upon the completion of this course the students will be able to CO1 Explain the layout, construction and working of the components inside a thermal power plant. CO2 Explain the layout, construction and working of the components inside a Diesel, Gas and Combined cycle power plants. CO3 Explain the layout, construction and working of the components inside nuclear power plants. CO4 Explain the layout, construction and working of the components inside Renewable energy power plants. CO5 Explain the applications of power plants while extend their knowledge to power plant economics and environmental hazards and estimate the costs of electrical energy production. CO6 Identify safety aspects of power plant.

4. POWER PLANT ENGINEERING EANEST/MECH/V/CME834/PPE/II 4 UNIT - II TLP.NO TOPICS 2.1 OTTO,DIESEL,DUAL AND BRAYTON CYCLE - ANALYSIS AND OPTMISATION 2.2 COMPONENTS OF DIESEL AND GAS TURBINE POWER PLANTS 2.3 COMBINED CYCLE POWER PLANTS 2.4 INTEGRATED GASIFIER BASED COMBINED CYCLE SYSTEM 8/19/2023

5. Previous Class: Today’s Class: EANEST/MECH/V/CME834/PPE/II 5 – Otto, diesel, dual and brayton cycle - analysis and optmisation Otto cycle. Diesel Cycle. Brayton Cycle. 2.2 – Components of diesel and gas turbine power plants Diesel Engine Power Plant. Component of diesel engine power plant. POWER PLANT ENGINEERING 8/19/2023

6. Diesel Engine Power Plant Chemical Energy – Heat Energy – Mechanical Energy – Electrical Energy. Diesel power plant ranges from 2MW to 50MW capacity. It is used as Peak load plant, Mobile plant, Standby plant, Emergency plant, Nursery stations and central stations. 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 6

7. Types of Diesel Engine Power Plants Four stroke engine Two stroke engine Vertical engine Horizontal engine Single cylinder engine Multi cylinder engine 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 7

8. Diesel Engine Power Plant 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 8

9. Diesel Engine Power Plant 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 9

10. Layout of diesel engine powerplant 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 10

11. Components of Diesel Engine Power Plant Heat engine Air intake system Engine starting system Fuel system Fuel injection system Lubrication system Cooling system Exhaust system 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 11

12. Heat Engine Any type of engine or machine which derives heat energy from the combustion of fuel or any other sources and converts this into mechanical work. 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 12

13. Air intake system Air intake system conveys fresh air through louvers, pipes or ducts to the air inlet of engine cylinder. Air filters removes the dust from the atmospheric air. Muffler is used to reduce the noise in the intake system. 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 13

14. Engine starting system The system includes air compressor and starting air tank, which is used to start engine in cold conditions by supplying air. Various methods for starting engines: Starting by an auxiliary engine Use of electric motors or self-starters Compressed air system 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 14

15. Fuel system 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 15

16. Fuel Injection System Filter the fuel. Meter the correct quantity of fuel to be injected. Time the fuel injection. Control the rate of fuel injection. Atomize the fuel to fine particles. Properly distribute the fuel in the combustion chamber. 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 16

17. Common Rail Injection system 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 17

18. Individual PumpInjection system 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 18

19. Distributor system 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 19

20. 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 20

21. Fuel Pump 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 21

22. Fuel Injector 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 22

23. Types of nozzle 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 23

24. Summary Studied about the component of diesel engine power plant. 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 24

25. Reference Nag. P.K., "Power Plant Engineering", Third Edition, Tata McGraw – Hill Publishing Company Ltd., 2008. 2.2 8/19/2023 EANEST/MECH/V/CME834/PPE/II 25