Which 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?
ā¢ Dew point and what happens to moisture in air when it is cooled below this temperature ā¢ Difference between removing moisture (dehumidifying) and just changing air temperature ā¢ How air conditioning coils typically both cool and then sometimes reheat air for comfort
ā¢ When you want to LOWER humidity, do you mainly need to change the air temperature, or physically remove some water from the air? ā¢ What specifically happens to water vapor in air when it is cooled BELOW its dew point versus when it is cooled just ABOVE its dew point? ā¢ After moisture has condensed out, why might you want to change the air temperature again before sending it into occupied spaces?
ā¢ Identify which choice actually causes condensation (liquid water removed) instead of just warming/cooling moist air ā¢ Check which process ends with comfortable supply air temperature AND lower humidity, not cold and clammy air ā¢ Eliminate any choice where moisture would boil off into the air (that would increase humidity, not reduce it)
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