Mechanical Engineering :: Refrigeration and Air Conditioning
- Moisture should be removed from refrigerants to avoid
- Air refrigerator works on
- The bypass factor of a cooling coil decreases with
- The formation of frost on cooling coils in a refrigerator
- Moisture in Freon refrigeration system causes
- A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg)
- The relative humidity is defined as
- The wet bulb temperature during sensible cooling of air
- The dry bulb temperature during sensible heating of air
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A.
The mass of water vapour present in 1 m3 of dry air |
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B.
The mass of water vapour present in 1 kg of dry air |
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C.
The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure |
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D.
The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure |