A chimney is 25 m high. The temperature of hot gases inside chimney is 300 C and temperature of air outside chimney is 30 C. If 20 kg of air is supplied to the furnace per kg of coal find the equivalent column of hot gases that would produce the same draught pressure.

A chimney is 25 m high. The temperature of hot gases inside chimney is

1.	A chimney is 25 m high. The temperature of hot gases inside chimney is 300 C and temperature of air outside chimney is 30 C. If 20 kg of air is supplied to the furnace per kg of coal find the equivalent column of hot gases that would produce the same draught pressure.
A.	20.02 m
B.	22.40 m
C.	24.42 m
D.	22.60 m
Answer» B. 22.40 m

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