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Heat Transfer, Refrigeration and Air Conditioning
The amount of radiation mainly depends upon the
nature of the body
temperature of the body
type of surface of the body
all of these
Correct Answer:
all of these
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Heat Transfer, Refrigeration and Air Conditioning
The temperature of ammonia after compression in a vapour compression system is
The coefficient of performance of Heat Pump is always __________ one.
Degree of saturation or percentage humidity is
The subcooling in a refrigeration cycle
Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body)
The process of heat transfer from a hot body to a cold body, in a straight line, without affecting the intervening medium, is called radiation.
The by-pass factor for a cooling coil
The formation of frost on cooling coils in a refrigerator
The sensible heat factor during cooling and dehumidification process is given by (where h1 = Enthalpy of air entering the cooling coil, h2 = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process)
The optimum effective temperature for human comfort is
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