Refrigeration and Air Conditioning
For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then

Smaller cabinet should be used
Refrigerant with lower evaporation temperature should be used
Bigger cabinet should be used
Perfectly tight vapour seal should be used

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Refrigeration and Air Conditioning
In a saturated air-water vapour mixture, the

Dry bulb temperature is higher than dew point temperature
Dry bulb, wet bulb and dew point temperature are same
Dew point temperature is lower than wet bulb temperature
Dry bulb temperature is higher than wet bulb temperature

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