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1.24. Compute the heat loss per day through 100m of brickwall (k =0.15 W/mK), 30 cm thick, if the inner face is at 20°C and the outer face at 10°C. Calculate the amount of oil that must be burnt to compensate for this loss if the heat of combustion is 42,000 kJ/kg and the efficiency of the furnace is 60%.

1.24. Compute the heat loss per day through 100m of brickwall (k =0.15 W/mK), 30 cm thick, if the inner face is at 20°C and the outer face at 10°C. Calculate the amount of oil that must be burnt to compensate for this loss if the heat of combustion is 42,000 kJ/kg and the efficiency of the furnace is 60%.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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1.24. Compute the heat loss per day through 100m of brickwall (k =0.15 W/mK), 30 cm thick, if the inner face is at 20°C and the outer face at 10°C. Calculate the amount of oil that must be burnt to compensate for this loss if the heat of combustion is 42,000 kJ/kg and the efficiency of the furnace is 60%.
Transcribed Image Text:1.24. Compute the heat loss per day through 100m of brickwall (k =0.15 W/mK), 30 cm thick, if the inner face is at 20°C and the outer face at 10°C. Calculate the amount of oil that must be burnt to compensate for this loss if the heat of combustion is 42,000 kJ/kg and the efficiency of the furnace is 60%.
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