Posted by Texasmark1 on July 17, 2013 at 06:12:58 from (184.20.63.40):
In Reply to: Re: power bill posted by George Marsh on July 17, 2013 at 04:42:35:
I don't remember discussing the cost of removing moisture in the air in my master course in heating, ac, and ref. from National Tech Schools in LA.. But that was 40 years ago.
The moisture condenses on the evaporator coil as a natural physical process and drains out. Actually on my zone AC units (some refer to them sarcastically as window units) it is a boon as I get the other physical process "heat (removal) of evaporation" efficiency boost by the slinger ring on the condenser fan slinging this condensate onto the coil, greatly improving it's cooling efficiency, and lowering the compressor head pressure thus lowering the line running amps and the monthly light bill.
Sometimes in the summer, on hot dry days when there is no condensate, I will squirt it with the water hose. You can hear the compressor settle down as you do it with the reduced work load it has.
I guess you could get into wet and dry bulb readings. Or it could be that dense, moisture laden air, takes more fan power to move....course by the time the fan sees it the moisture has already condensed on the evap coil.
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