Indian Institute of Technology Patna 2011 Diploma Mechanical Engineering BME-058 : POWER PLANT ENGINEERING, Term-End , e-. - Question Paper
No. of Printed Pages : 4 BME-058~|
DIPLOMA IN ELECTRICAL AND
MECHANICAL ENGINEERING
vO
Term-End Examination
June, 2011
BME-058 : POWER PLANT ENGINEERING
Time : 3 hours Maximum Marks : 70
Note: Answer any seven questions. Assume if any data is missing. Use of scientific calculator is permitted.
1. (a) Describe briefly various sources of Energy 5 Production and discuss their merits and demerits.
(b) List out the advantages of liquid and gaseous 5 fuels. .
2. (a) Give the layout of a modem steam power plant and explain it briefly.
(b) Describe the rankine cycle as applied to a system using super heated system. What is the utility of this cycle in the study of steam power plants ?
3. (a) What is evaporator ? How are evaporators 5
classified ? Explain any one of them with neat sketch.
(b) The 5400 kg of steam is produced per hour 5 at a pressure of 7.5 bar in a boiler with feed water at 415C. The dryness fraction of steam at exit is 0.98. The amount of coal burnt per hour is 670 kg of calorific value 31000 kj/kg. Determine
(i) Boiler efficiency
(ii) Equivalent evaporation.
4. (a) Explain with help of neat diagram the 5
construction and working of a nuclear power plant.
(b) Discuss the advantages and disadvantages 5 of nuclear power plants as compared with conventional power plants.
5. (a) Discuss the various factors to be considered 5
while selecting a site for nuclear power plant.
(b) What is "Boiling Water Reactor" ? How it 5 differs from "Pressurised Water reactor" ?
6. (a) List out the advantages and disadvantages 5
of Diesel Power Plants.
(b) During the trial of a four stroke diesel engine, 5 the following observations were recorded Area of indicator diagram = 475 mm2 Length of indicator diagram = 62 mm Spring Index = 1.1 bar/mm Diameter of Piston = 100 mm Length of stroke = 150 mm Engine speed = 375 rpm Determine
(i) Indicated mean effective pressure
(ii) Indicated power
7. (a) Explain the working of simple gas turbine 5
plant with help of neat diagram.
(b) List out the applications and limitations of 5 gas turbine power plants.
9. (a) What safety measures need to be taken for 5
the safe operation of an Hydro - Electric Power Plant ?
(b) Enumerate and explain briefly various 5 methods used to calculate the depreciation cost.
10. Write short notes on any two of the following : 5+5=10
(a) Equivalent Evaporation
(b) Super Heater
(c) Condensing system
BME-058 4
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| Earning: Approval pending. |
