. A 4-m x 5-m x 7-m room is heated by the radiator of a steam-heating system. The steam radiator transfers heat at a rate of 10,000 kJ/h, and a 100-W fan is used to distribute the warm air in the room. The rate of heat loss from the room is estimated to be about 5000 kJ/h. If the initial temperature of the room air is 10°C, determine gow long it will take for the air temperature to rise to 20oC. Assume constant specific heats at room temperature where CAIR = 0.768kJ/kg-K. Draw a figure or FBD that will support the problem. Explain each step by step formula.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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5. A 4-m x 5-m x 7-m room is heated by the radiator of a steam-heating system. The steam radiator transfers heat at a rate of 10,000 kJ/h, and a 100-W fan is used to distribute the warm air in the room. The rate of heat loss from the room is estimated to be about 5000 kJ/h. If the initial temperature of the room air is 10°C, determine gow long it will take for the air temperature to rise to 20oC. Assume constant specific heats at room temperature where CAIR = 0.768kJ/kg-K. Draw a figure or FBD that will support the problem. Explain each step by step formula.

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