Dehydration is the process of removing water vapour from the surrounding air.

More Questions from Heat Transfer, Refrigeration and Air Conditioning

• If the evaporator temperature is kept constant, the coefficient of performance of a refrigeration cycle __________ with the increase in condenser temperature.
• The heat transfer by conduction through a thick cylinder(Q) is given by (where T1 = Higher temperature, T2 = Lower temperature, r1 = Inside radius, r2 = Outside radius, l = Length of cylinder, and k = Thermal conductivity)
• The rato of energy transferred by convection to that by conduction is called
• Upto the critical radius of insulation,
• The critical thickness of insulation is the ratio of thermal conductivity of the insulating material (k) to the heat transfer coefficient at the outer surface of the insulation (h0).
• Pressure of water vapour is given by
• In counter-current flow heat exchanger, the logarithmic temperature difference between the fluids is __________ as compared to parallel flow heat exchanger.
• For a given dry bulb temperature, as the relative humidity __________ the wet bulb temperature will increase.
• The drier in a refrigeration system removes moisture in the system.
• Wet bulb temperature indicates the moisture content in air.

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