A refrigerant compressor is used to
In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the
It is desired to condition the outside air fromrelative humidity andC dry bulb temperature torelative humidity andC dry bulb temperature (room condition). The practical arrangement will be
During heating and humidification, the final relative humidity of air
The absolute humidity is the mass of water vapour present in 1 m3 of dry air.
During heating and dehumidification process, dry bulb temperature
The fluids used in electrolux refrigerator are
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by
The process of undercooling is generally brought about by
The refrigerant used in small-tonnage commercial machines (hermetically sealed units) is
The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called
A refrigerant compressor is used to
In a lithium bromide absorption refrigeration system
In which of the following refrigeration system, waste heat can be effectively used?
R-has the __________ freezing point.
Planck's law holds good for all coloured bodies.
A Bell Coleman refrigerator working on dense air system as compared to open air system, for the same range of temperature, results in higher coefficient of performance.
In a reversed Brayton cycle, the heat is absorbed by the air during
In mechanical refrigeration system, the refrigerant has the maximum temperature
The product of Reynolds number and Prandtl number is known as
The central air conditioning system has __________ overall efficiency as compared to individual systems.
The ratio of surface convection resistance to the internal conduction resistance is known as
Wet bulb temperature is the temperature of air recorded by a thermometer, when
The capacity of a domestic refrigerator is in the range of
The critical thickness of insulation for a sphere is
Carbon dioxide is
The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as
The critical thickness of insulation for a sphere is
A device used for transfering heat from one fluid to another is called heat exchanger.
The condition of refrigerant after passing through the condenser in a vapour compression system is