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a. 500 mol/h methane at 40°C was fed to a furnace and burned with 15% of...

a. 500 mol/h methane at 40°C was fed to a furnace and burned with 15% of excess air at
80°C. The exit gas products comprise of CO2 and CO in mol ratio of 15 (CO2/CO), where
all methane was burned during the combustion. The product gas leaves the furnace at
380°C. Determine the amount of heat loss from the furnace in kW.

b. During the combustion process in part (a), the heat produced is used to heat up the water
to produce steam. By considering the changes of the following conditions for the same
process in part (a), predict the changes to the production rate of steam and justify your
answer:

(i)
(ii)
(iii)
(iv)		 The exit gas products contain higher mol ratio of CO2/CO.
More excess air was fed to the furnace
Air was fed to the furnace at 110°C
The product gas leaves the furnace at 420°C

energy balance

Solutions

Expert Solution

Amanda K answered 5 months ago
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