A room having dimension 12m 10m 3.5m is required to be mechanically ventilated by airconditioner. The temperature difference outdoor ambient air and the supply air is 12 C. Consider three air exchanges per hour. The volumetric specific heat of the air is 1250 J/m3 C. Assume one ton of refrigeration (TR) is equal to 3.5kW. The capacity of the air-conditioner for the room in TR will be _______.

A room having dimension 12m 10m 3.5m is required to be mechanicall

1.	A room having dimension 12m 10m 3.5m is required to be mechanically ventilated by airconditioner. The temperature difference outdoor ambient air and the supply air is 12 C. Consider three air exchanges per hour. The volumetric specific heat of the air is 1250 J/m3 C. Assume one ton of refrigeration (TR) is equal to 3.5kW. The capacity of the air-conditioner for the room in TR will be _______.
A.	2.5
B.	1.5
C.	0.5
D.	3.5
Answer» C. 0.5

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