અગત્ય ની સુચના( SEM-7)

DATE:07/08/2019

નીચે આપેલું ASSIGNMENT MID SEMESTER EXANINATION માટે ખુબ જ ઉપયોગી થશે .અને GTU ની END SEMSTER EXANINATION માટે પણ ખુબ જ ઉપયોગી થશે. આ ASSIGNMENT ને MID SEMESTER EXANINATION પછી જે તે નિર્ધારિત તારીખે સબમીશન ના ભાગ રૂપે બતાવાનું રહેશે.

Power Plant Engineering  Assignment -I

QUESTIONS

1.Draw a neat layout of thermal power plant and make a list of site selection criteria for the same.

2.Draw a line diagram of a benison boiler. State the main difficulties experienced in  the La Mont boiler and how it is prevented?

3.Expalin pulverized coal system and state its merits and demerits.

4.Define the following terms:

1.Peak load                            5.Plant Capacity Factor

2.Average load                      6.Diversity Factor

3.Connected load                   7. Plant Use Factor

4.Demand  factor

5.A Thermal power plant of 170 MW capacity has the maximum load of 130 MW. Its annual load factor is 0.6.The coal consumption is 1.2 kg per kWh of energy generated and the cost of coal is Rs.850 per tonnes. Calculate (i) the annual revenue earned if energy is sold at Rs.2 per kWh and (ii) the capacity factor of the plant.

6.Explain with neat sketch the open cycle gas turbine power plan.also show it on T-S diagram and derive an expression for the thermal efficiency.

7..Explain the statement:- " coal handling system is called lifeline of the coal fired power plant"

8.In a constant pressure open cycle gas turbine air enters the compressor at 1 bar and 18 C where it is compressed to a pressure ratio of 6.the gases enters the gas turbine at 730 C and expands to original pressure .calculate the work ratio and the thermal efficiency when gas turbine plant operate on a Brayton cycle. Assume Ƴ=1.4 ,Cp=1.0 KJ/kg K for air and Ƴ=1.3,Cp=1.1 KJ/kg K for gases. neglect the mass of Fuel.

9.State requirement of good ash handling plant and explain the working of electrostatic precipitator with neat sketch.

10.Write a brief note on present status of power generation in india?

11.Explain advntages and disadvantages of gas turbine over internal combustion engine.

12.. Explain any two from the following boiler accessories with neat sketch.

(i) Air-Preheater (ii)Economizer (iii) Re-heater

13.Make a list of means for improving the efficiency and specific output of simple gas turbine plant.

14.Explain with neat schematic diagram the working of closed cycle gas turbine.

15.State the different arrangement of combine cycle power plant and explain any one with neat sketch.