Determine the ratio of power required to run a forced draught fan to power required to run an induced draught fan, considering same efficiency and same draught. The ambient temperature and temperature of flue gases leaving the boiler are 28 C and 300 C respectively. The coal consumption rate and mass of air supplied for complete combustion of fuel are also same.

Determine the ratio of power required to run a forced draught fan to p

1.	Determine the ratio of power required to run a forced draught fan to power required to run an induced draught fan, considering same efficiency and same draught. The ambient temperature and temperature of flue gases leaving the boiler are 28 C and 300 C respectively. The coal consumption rate and mass of air supplied for complete combustion of fuel are also same.
A.	0.52
B.	0.23
C.	0.65
D.	0.78
Answer» B. 0.23

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