Mechanical Engineering :: Heat Transfer,Refrigeration and Air Conditioning
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The coefficient of performance of a domestic refrigerator is __________ as compared to a domestic air-conditioner.
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The process of heat transfer from one particle of the body to another is called conduction, when the particles of the body
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The human body feels comfortable when the heat stored in the body is
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A Bell Coleman refrigerator working on dense air system as compared to open air system, for the same range of temperature, results in __________ power per tonne of refrigeration.
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The amount of heat flow through a body by conduction is
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A furnace is made of a red brick wall of thickness 0.5 m and conductivity 0.7 W/mK. For the same heat loss and temperature drop, this can be replaced by a layer of diatomite earth of conductivity 0.14 W/mK and thickness
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In a refrigeration system, the expansion device is connected between the
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Wein's law states that the wave length corresponding to __________ is proportional to the absolute temperature.
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In a domestic vapour compression refrigerator, the refrigerant commonly used is
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