PRIST UNIVERSITY(Estd. u/s 3 of UGC Act, 1956)

Vallam, Thanjavur -613403_____________________________________________________________________

B.Tech(Part Time) – Mechanical Engineering

QUESTION BANK

Course Details

Course Code & Title : UEPME61& Power Plant Engineering

Regulations : 2008

Nature of the Course : Hardcore

Semester : IV

H.O.D. Staff-In-Charge

POWER PLANT ENGINEERING 5 0 0 5 100

UNIT – I: INTRODUCTION: 9Layout of Steam, Hydel, Diesel, MHD, Nuclear and Gas Turbine Power Plants - Steam Boilers and Cycles – High Pressure and Super Critical Boilers – Fluidised Bed Boilers

UNIT – II: STEAM POWER PLANT 9Fuel Handling and Ash Handling, Combustion Equipment for burning coal, MechanicalStokers, Pulveriser, Electrostatic Precipitator, Draught, Cooling Towers

UNIT – III: NUCLEAR AND HYDEL POWER PLANTS 9Nuclear Energy – Fission, Fusion Reaction, Types of Reactors, pressurized water reactor, Boiling Water Reactor,.Hydel Power Plant – Essential Elements, Selection of Turbines, Governing of Turbines- Micro Hydel developments.

UNIT – IV: DIESEL AND GAS TURBINE POWER PLANT 9Types of Diesel Plants, Components, Selection of Engine Type, Applications Gas Turbine Power Plant – Fuels – Open and Closed Cycles – Reheating – Regeneration and Intercooling

UNIT – V: POWER PLANTS ECONOMICS 9

Geo thermal –OTEC – Tidel - Pumped storage - Solar thermal central receiver system.

Cost of Electric Energy – Fixed and operating Costs – Energy Rates –Economics of load sharing, comparison of economics of various power plants.

Total Hours: 45

TEXT BOOKS:

1. G.D.Rai, “Introduction to Power Plant Technology”, Khanna Publishers, 1995.2. Nag P.K, “Power plant Engineering”, Tata McGraw-Hill, 1998.

REFERENCES:

1. K.K.Ramalingam, “Power Plant Engineering”, Scitech Publications, 2002.2. Frank D.Graham “Power Plant Engineers Guide”, D.B. Taraporevala Sons & Co, New Delhi,

1993.3. T.Morse Frederick, “Power Plant Engineering”, Prentice Hall of India, 1998

UNIT – I INTRODUCTION:

PART-A

1. Name any two thermal and hydel power plants in Tamilnadu.2. How do you improve the overall efficiency of a thermal power plant?3. What are the two major advantages of thermal power plant?4. What do you understand by water hammer?5. What is the purpose of surge tank provided in a hydroelectric power plant?6. What is the function of moderator? And give example.7. What is the purpose of air intake system in a diesel engine power plant?8. What is the use of regenerator?9. State any two applications of gas turbine power plant.10. What is the basic principle of MHD generator?

PART-B

1. Explain the layout of steam power plant with a neat sketch. 2. With a neat sketch describe the layout of hydel power plant.3. Explain the layout of diesel power plant with a neat sketch.4. Describe in brief the layout of nuclear power plant with a neat sketch.5. Draw the layout of MHD open cycle generator and explain its function of components.6. Describe the layout of gas turbine power plant with a neat sketch.

UNIT – IISTEAM POWER PLANT

PART-A

1. Name the different types of coal?2. What are the steps in implant handling of coal?3. List six equipments used for transferring coal in steam power plant.4. What are the methods used for removing ash? 5. State the two types of stokers based on feeding type.6. What is pulverization?7. What is the mechanism of Pulverizing fuel firing system?8. Name the various types of mills used for pulverizing the coal.9. What are the advantages of burning coal in pulverized form? 10. Write the function of electrostatic precipitator?11.

PART-B

1. Explain any five coal transfer systems with necessary sketch.2. Discuss in detail the various steps involved in coal handling.3. Explain with neat sketch any three ash removal methods.4. Discuss with neat sketch about the principles of stokers. (16)5. Explain in detail with the following:

a) Chain grate stoker (8)b) Spreader stoker (8)

6. Discuss in detail about electrostatic precipitator with necessary sketch.

UNIT – IIINuclear and Hydel Power Plants

PART-A1. What are the components of a nuclear power plant?2. Classify the different types of nuclear reactor.3. Define the term nuclear fission.4. What is nuclear fusion?5. Define chain reaction.6. What is the purpose of a moderator?7. What are the desired properties for a good moderator?8. What are the functions of control rods?9. State the essential factors considered for selecting a site for hydel power plant.10. What are the different types of turbine?

PART-B

1. Differentiate between nuclear fission reaction and nuclear fusion reaction. Justify with help of required equations and diagrams.

2. What is called as reactor core? Explain the structure of core with help of neat sketch.3. Discuss with sketch the essential elements of the hydel power plant.4. Explain with neat sketch about the Pelton wheel turbine.5. Describe with neat sketch about the Kaplan turbine.6. Explain in brief Micro hydro power plant with its advantages.

UNIT – IV

DIESEL AND GAS TURBINE POWER PLANT

PART-A

1. What are the essential components of a diesel power plant?2. What are the methods of cooling in a diesel engine power plant?3. What are the devices used for starting a diesel engine?4. State the methods of lubricating systems in IC Engines.5. What are the commonly used fuel injection systems in a diesel power station?6. State the applications of diesel power plant.7. What are main units in a gas turbine power plant?8. What is the use of regenerator?9. How the gas turbine power plans are classified?10. State the effects of intercooling in a gas turbine plant.

PART-B1. Discuss the I.C engine components with a neat sketch.2. Describe in brief the pressure type lubricating system with neat sketch.3. Explain briefly with neat sketch

a) Thermo-syphon cooling (8) b) Thermostatic cooling (8)

4. Explain with neat sketch about the working of a) Open cycle gas turbine (8) b) Closed cycle gas turbine (8)

5. Explain the gas turbine cycle with intercooling.6. Discuss the effect of intercooling and reheating in a gas turbine power plant.

UNIT – V

POWER PLANTS ECONOMICS

PART-A

1. What is geothermal energy?2. What are the applications of geothermal energy?3. Name the different geothermal fluids.4. State the principle of OTEC.5. Mention the different types of OTEC.6. What are the components of Tidal power plants?7. What is the Classification of tidal power plant?8. What are the advantages of Tidal power generation?9. What are the different types of energy storage systems?10. What are the advantages of pumped storage power plant?

11. State the characteristics of solar thermal central receiver system.PART-B

1. Explain the working principle of geothermal energy conversion system with neat sketch.2. Describe in brief the geothermal power plant with neat sketch.3. Explain the working principle of OTEC with neat sketch.4. Describe with neat sketch the working principle of Tidal power plant.5. With a neat sketch describe briefly the solar thermal central receiver system.6. Discuss in brief the cost of electrical energy.