In a boiler installation the height of chimney is 38 m and the hot gas temperature is 570 K andambient air temperature is 300 K. Considering the diameter of chimney to be 2m, air/fuel ratiobeing 19 determine the mass flow rate of flue gases flowing out.Determine the power required for a forced draught and induced draught fan in a boiler having coalconsumption of 25 kg/min and air/fuel ratio of 19 by mass. The ambient air temperature and hotgas temperature at exit are 30C and 140C respectively. Draught required is equivalent to 32.2 mmof water and mechanical efficiency of motor/fan is merely 70%.

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In a boiler installation the height of chimney is 38 m and the hot gas temperature is 570 K and ambient air temperature is 300 K. Considering the diameter of chimney to be 2m, air/fuel ratio being 19 determine the mass flow rate of flue gases flowing out.

In a boiler installation the height of chimney is 38 m and the hot gas temperature is 570 K and ambient air temperature is 300 K. Considering the diameter of chimney to be 2m, air/fuel ratio being 19 determine the mass flow rate of flue gases flowing out.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.53P

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Question

In a boiler installation the height of chimney is 38 m and the hot gas temperature is 570 K and
ambient air temperature is 300 K. Considering the diameter of chimney to be 2m, air/fuel ratio
being 19 determine the mass flow rate of flue gases flowing out.
Determine the power required for a forced draught and induced draught fan in a boiler having coal
consumption of 25 kg/min and air/fuel ratio of 19 by mass. The ambient air temperature and hot
gas temperature at exit are 30C and 140C respectively. Draught required is equivalent to 32.2 mm
of water and mechanical efficiency of motor/fan is merely 70%.

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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Determine the power required for a forced draught and induced draught fan in a boiler having coal consumption of 25 kg/min and air/fuel ratio of 19 by mass. The ambient air temperature and hot gas temperature at exit are 30C and 140 C respectively. Draught required is equivalent to 32.2 mm of water and mechanical efficiency of motor/fan is merely 70%.
Determine the power required for a forced draught and induced draught fan in a boiler having coalconsumption of 25 kg/min and air/fuel ratio of 19 by mass. The ambient air temperature and hotgas temperature at exit are 30C and 140C respectively. Draught required is equivalent to 32.2 mmof water and mechanical efficiency of motor/fan is merely 70%
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