Portable air conditioners

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very silly question but i just went over to my friend's and he bought himself a portable air conditioner.

How do these things NOT violate the second law of thermodynamics?! The heat generated by the machine gets deposited to the surroundings (ie his room). Now this magnitude of heat released to the surroundings must be greater than the heat taken away from it by machine, right?
 

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  • #2
turbo
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Portable air conditioners must be vented to an area separate from the area being cooled. I have a floor-model portable AC, and it vents through a large flexi-hose that is mounted on an adjustable panel that gets clamped under the lower pane of a window. The moisture from the condenser exits a hose in the back and goes into my cellar's floor drain, though there is an option to collect the condensate in an internal pan that you empty once a day or so.
 
  • #3
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oh i see. thanks for the info turbo-1.
 

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