Question 95Refrigeration & AC - Assistant Engineer
70% to passWhich of the processes listed would be the most satisfactory method to use to lower the humidity of the air being circulated by an air conditioning system?
ACooling the air to a temperature just above dew point.
BHeating the air and then cooling it to a point below dew point.
CCooling the air to a point below dew point, then reheating it.
DHeating the air to a point at which moisture will boil off, then recooling it.
AI Explanation
The correct answer is C) Cooling the air to a point below dew point, then reheating it. This is the most satisfactory method to lower the humidity of the air being circulated by an air conditioning system. By cooling the air below the dew point, the moisture in the air will condense and be removed. The air is then reheated to the desired temperature, lowering the relative humidity. This process is commonly used in dehumidification systems to efficiently remove excess moisture from the air. The other options are less effective or inefficient. Option A would not remove enough moisture, Option B would require more energy, and Option D would be an inefficient way to remove moisture.
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