Calculate the draught in mm of water if the chimney height is 30 m, the temperatures of hot gases inside chimney and outside air are 330 C and 30 C respectively. Also, the furnace is supplied with 15 kg of air per kg of coal burnt.

Calculate the draught in mm of water if the chimney height is 30 m, th

1.	Calculate the draught in mm of water if the chimney height is 30 m, the temperatures of hot gases inside chimney and outside air are 330 C and 30 C respectively. Also, the furnace is supplied with 15 kg of air per kg of coal burnt.
A.	14.67 mm of water
B.	17.64 mm of water
C.	16.22 mm of water
D.	16.19 mm of water
Answer» D. 16.19 mm of water

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Calculate the draught in mm of water if the chimney height is 30 m, the temperatures of hot gases inside chimney and outside air are 330 C and 30 C respectively. Also, the furnace is supplied with 15 kg of air per kg of coal burnt.

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