During summer season a room measuring 10 x 13 x 6 m3 is cooled electrically from initial temperature- 28°C to 2°C. The air pressure inside the room is the same as that of surroundings and is equal to 72 cm of Hg. The pressure remains constant during the cooling process. The cooling capacity of furniture and wall is 35 kJ/K. The Cp of air is 1.005 kJ/kgK.Calculate the amount of electric energy needed for cooling the room. How much air comes through gaps and windows during cooling period?
During summer season a room measuring 10 x 13 x 6 m3 is cooled electrically from initial temperature- 28°C to 2°C. The air pressure inside the room is the same as that of surroundings and is equal to 72 cm of Hg. The pressure remains constant during the cooling process. The cooling capacity of furniture and wall is 35 kJ/K. The Cp of air is 1.005 kJ/kgK.Calculate the amount of electric energy needed for cooling the room. How much air comes through gaps and windows during cooling period?
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.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.34P: 2.34 Show that the temperature distribution in a sphere of radius . made of a homogeneous material...
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During summer season a room measuring 10 x 13 x 6 m3 is cooled electrically from initial temperature- 28°C to 2°C. The air pressure inside the room is the same as that of surroundings and is equal to 72 cm of Hg. The pressure remains constant during the cooling process. The cooling capacity of furniture and wall is 35 kJ/K. The Cp of air is 1.005 kJ/kgK.Calculate the amount of electric energy needed for cooling the room. How much air comes through gaps and windows during cooling period?
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