Defrosting of a refrigerator may be done by stopping the compressor for a short period.

More Questions from Heat Transfer, Refrigeration and Air Conditioning

• A water cooled condenser operates at a __________ condensing temperature than an air-cooled condenser.
• For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of
• In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s. The sensible heat factor for the process will be
• The heat transfer by conduction through a thick sphere is same as through a thick cylinder.
• As relative humidity decreases, the dew point temperature will be __________ wet bulb temperature.
• Which of the following statement is wrong?
• During adiabatic saturation process on unsaturated air __________ remains constant.
• The centrifugal compressors are generally used for refrigerants that require
• A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as
• Which of the following statement is correct for ammonia as a refrigerant?

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