STUPIDSID
Answer any one question from Q1 and Q2
1 (a)
Discuss the methods of determining the depreciation of electric power plants.
9 M
1 (b)
For a 200 MW thermal power plant, the following data is available
i) Fixed Cost = Rs. 24×106 per year
ii) Cost of fuel = Rs. 1800 per ton
iii) Calorific value of fuel used = 20,000 kJ/kg
iv) Other expenses = Rs. 280 per kW per year
v) Plant heat rate
1) 18000 kJ/kWh at 100% capacity factor
2) 10500 kJ/kWh at 50% capacity factor
Determine the generating cost per k Wh at 100% and 50% capacity factor.
i) Fixed Cost = Rs. 24×106 per year
ii) Cost of fuel = Rs. 1800 per ton
iii) Calorific value of fuel used = 20,000 kJ/kg
iv) Other expenses = Rs. 280 per kW per year
v) Plant heat rate
1) 18000 kJ/kWh at 100% capacity factor
2) 10500 kJ/kWh at 50% capacity factor
Determine the generating cost per k Wh at 100% and 50% capacity factor.
9 M
2 (a)
Discuss the performance of power plant considering input output curve, efficiency load curve, Define heat rate & incremental heat rate. Show that the heat rate of input out put is min. when it is equal to incremental rate.
9 M
2 (b)
Discuss how unit energy cost is calculated.
9 M
Answer any one question from Q3 and Q4
3 (a)
Explain the problem of dust collection on Indian scenario & discuss the working of Electrostatic precipitators. List their advantages & disadvantages.
8 M
3 (b)
Give layout of unit system of pulverized fuel burning. List its advantages & disadvantages.
8 M
4 (a)
Explain the working of reheat cycle with a schematic layout & h-s diagram. Derive the expression for efficiency of this cycle considering feed pump work.
8 M
4 (b)
Explain Overfeed & Under Feed principles of coal firing.
8 M
Answer any one question from Q5 and Q6
5 (a)
What do you understand by run off power plant? How they differ from other types of hydro power plants.
8 M
5 (b)
What are the different types of spillways used in practice? Discuss the advantages of one over the other.
8 M
6 (a)
An open cycle gas turbine plant uses heavy oil as fuel. The maximum pressure and temperature in the cycle are 5 bar and 650°C. The pressure and temperature of the air entering into the compressor are 1 bar and 27°C. The exit pressure of the turbine is 1 bar. Assuming isentropic
efficiencies of the compressor and turbine to be 80% and 85% respectively. Find the thermal efficiency of the cycle. Overall air fuel ratio used is 60:1.
Take Cp (for air & gas)= 1 kJ/kg K
y for air and gas =1.4
Take Cp (for air & gas)= 1 kJ/kg K
y for air and gas =1.4
8 M
6 (b)
Explain with a neat sketch combined cycle power plant.
8 M
Answer any one question from Q7 and Q8
7 (a)
Draw a neat diagram of CANDU type reactor & give its advantages & disadvantages over the other type of reactors.
9 M
7 (b)
Explain with neat sketch gas cooled reactor.
9 M
Write short notes on:
8 (a)
Nuclear power Plants in India.
6 M
8 (b)
Nuclear waste disposal.
6 M
8 (c)
Disadvantages of diesel power plant.
6 M
Answer any one question from Q9 and Q10
9 (a)
What are the major electrical equipment used in power plants.
8 M
9 (b)
What do you understand by MHD? Explain the working principle of MHD with neat sketch.
8 M
10 (a)
Explain with neat sketch hydrogen-oxygen fuel cell.
8 M
10 (b)
What is the difference between thermo-electric & thermionic conversion systems? Explain the working of thermionic system with neat sketch.
8 M
Answer any one question from Q11 and Q12
11 (a)
What is acid rain? How they are controlled?
8 M
11 (b)
What are the basic radioactive pollutants? What are their bad effect on human and vegetation life?
8 M
12 (a)
What are the different methods used to control SO2 in the flue gases? Explain any two.
8 M
12 (b)
Classify different pollutant from thermal power plant. Explain how thermal pollution can be controlled.
8 M
More question papers from Power Plant Engineering