Calculate how much air is used per kg of coal burnt, if the chimney height is 35 m which creates a draught of 20 mm of water. The temperature of hot gases inside the chimney is 330°C and temperature of air outside is 27°C.

Calculate how much air is used per kg of coal burnt, if the chimney h

1.	Calculate how much air is used per kg of coal burnt, if the chimney height is 35 m which creates a draught of 20 mm of water. The temperature of hot gases inside the chimney is 330°C and temperature of air outside is 27°C.
A.	29.52 kg of air per kg of coal
B.	21.34 kg of air per kg of coal
C.	22.45 kg of air per kg of coal
D.	19.54 kg of air per kg of coal
Answer» B. 21.34 kg of air per kg of coal

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Calculate how much air is used per kg of coal burnt, if the chimney height is 35 m which creates a draught of 20 mm of water. The temperature of hot gases inside the chimney is 330°C and temperature of air outside is 27°C.

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