Write short notes on any four of the following

1 (a)
Load management of power plant

10 M

1 (b)
Benefits of co-generation

10 M

1 (c)
Mechanical dust collectors

10 M

1 (d)
Surge tank

10 M

1 (e)
Cooling system for diesel power plant.

10 M

1 (f)
Water hammer and its remedial measures

10 M

2 (a)
Prove that the condition for economic loading of different units for a power [10]
plant site is dl

_{1}/dL_{1}=dI_{2}=dI_{3}/dL_{3}=-----dI_{n}/dL_{n}
10 M

2 (b)
A 300 MW thermal power plant is to supply power to a system having maximum and minimum demand of 240 MW and mo MW respectively in a year. Assuming the load duration curve to be a straight line estimate the Load Factor and Capacity Factor of the plant.

10 M

3 (a)
Explain with a neat sketch the operation of Pressurised Water Reactor

10 M

3 (b)
Calculate the cost of generation per kWh for a power station having the following data:

i) installed capacity of the plant - 210 MW ii) Capital Cost : Rs.18000/kW iii)Rate of interest and depreciation = 12%. iv) Annual Load Factor = 60% v)Annual Capacity Factor = 54 % Vi) Annual Running Charges =Rs 200 × 10

i) installed capacity of the plant - 210 MW ii) Capital Cost : Rs.18000/kW iii)Rate of interest and depreciation = 12%. iv) Annual Load Factor = 60% v)Annual Capacity Factor = 54 % Vi) Annual Running Charges =Rs 200 × 10

^{6}vii)Energy Consulted by power plant auxiliaries - 6%. Calculate the cost of power generation per kWh and the reserve capacity.
10 M

4 (a)
In a regenerative gas turbine cycle the pressure ratio is 5. Air enters the compressor at 1 bar, 300 K and leaves at 490 K. The maximum temperature in the cycle is 1000K. Calculate the cycle efficiency given that effectiveness of regenerator and isentropic efficiency of the of the turbine each is 80%. Assume C

_{p}=1.005 kJ/kgK and ratio of Specific heats is 1.4 throughout the cycle
10 M

4 (b)
The runoff data of a river at a particular site is tabulated below:

(i)Draw the hydrograph and find the mean flow.

(ii) Draw the flow duration curve

(iii) Find the power developed if the head available is 90 m and the overall efficiency of generation is 86%. Assume each month of 30 days

Month |
Mean Discharge (Millions of m^{3)} |
Month |
Mean Discharge Millions of m^{3} |

January | 1500 | July | 3000 |

February | 1200 | August | 3600 |

March | 900 | September | 3000 |

April | 600 | October | 2400 |

May | 300 | November | 2100 |

June | 2100 | December | 1800 |

(i)Draw the hydrograph and find the mean flow.

(ii) Draw the flow duration curve

(iii) Find the power developed if the head available is 90 m and the overall efficiency of generation is 86%. Assume each month of 30 days

10 M

5 (a)
What are the performance characteristics of a coal based thermal power plant Discuss in brief the factors to be considered for selection of site for locating the plant.

10 M

5 (b)
In a test on a single cylinder 4 stroke diesel engine with bore 400 mm and stroke 450 mm , the following observations were made
Duration of test = 1 hr; Fuel Consumption = 7.5 kg ; C.V.of fuel = 44500 kJ/kg
Total revolutions-12000/hr; Mean effective Pressure = 4 Bar; Net Brake load =1500N ; Brake drum diameter = 180cm ; Rope drum diameter = 3 cm ;Jacket Cooling Water = 500 kg ; Rise in cooling water temp = 42° C :Total air
consumption = .361 kg ; Exhaust gas temperature - 300°C;
Room temperature = 20°C ; Specific heat of exhaust gases=1.01kJ/kgK
Calculate: i) Mechanical efficiency ii) Indicated end Brake thermal efficiency
iii) Draw up heat balance sheet on minute basis

10 M

6 (a)
What are advantages Fluidised Bed Combustion. Explain with a neat sketch the operation of Circulating Fluidised Bed Boiler

10 M

6 (b)
Discuss the effect of reheating and regeneration on the performance of Steam Power plant

10 M

7 (a)
List the advantages of a diesel power plant

4 M

7 (b)
Discuss in brief the disposal of radioactive waste

6 M

7 (c)
Explain with a neat sketch any one type of Flue Gas De-sulphurization plant

10 M

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