Energy Conversion

	Question
0	Answer the following in brief: (a) What is Stoker Firing? This question has 0 answers so far.
0	Answer the following in brief: (b) List the essential features of a good boiler. This question has 0 answers so far.
0	Answer the following in brief: (c) Explain the function of a nozzle in steam turbines? This question has 0 answers so far.
0	Answer the following in brief: (d) List the drawbacks of diesel power plants. This question has 0 answers so far.
0	Answer the following in brief: (e) Write a short note on "Solar Energy". This question has 0 answers so far.
0	a) Discuss fluidized bed combustion. What are the advantages and limitations of F.B.C? This question has 0 answers so far.
0	The chemical analysis by mass of a fuel is: carbon 87.1%, hydrogen 4.4%, oxygen 1.2% and ash 7.3%. Determine the amount of air required for combustion of fuel. This question has 0 answers so far.
0	Draw the Rankine vapour cycle on P-V and T- diagrams, and explain it. This question has 0 answers so far.
0	A steam plant receives steam at 41.2 bar and a temperature of 400°C.After expansion to 17.16 bar, it is reheated to 400°C, and then expanded to 6.865 bar. It is then reheated to 400°C, after which is expands down to a back pressure of 0.055 bar. Assuming frictionless adiabatic expansion, find the thermal efficiency of the plant and compare it to one obtained without reheating. This question has 0 answers so far.
0	The air leaked into a surface condenser is 80 kg/hr. The vacuum of the inlet of the pump is 70 cm of Hg when barometer reads 76 cm of Hg. The temperature at inlet of vacuum pump is 20°C, find: (a) Minimum capacity of air pump in m3/hr. (b) Mass of vapors extracted per minute. This question has 0 answers so far.
0	A nozzle is supplied with steam at 0.687 N/mm² which is superheated to200°C. The nozzle discharges into a vessel where the pressure is 0.137 N/mm². The steam flow is 0.068 kg per second. Assuming a friction loss of 10% in the nozzles. This question has 0 answers so far.
0	A four-stroke cycle gas engine has a bore of 15.24 cm and a stroke of 22.86 cm. The compression ratio is 4 and the m.e.p. 3.43 bar. If the engine speed is 300 rev/min and the thermal efficiency is 30%, calculate the fuel consumption in m³/kwhr and the efficiency relative to the air-standard cycle. Calorific value of gas is 18297.2 kJ/m³. This question has 0 answers so far.
0	With the help of a neat sketch explain the working of a horizontal axis multibladed wind Mill. This question has 0 answers so far.