Is a Portable Air Conditioner with Water Cooling Feasible for Garage Use?

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Discussion Overview

The discussion revolves around the feasibility of using a portable air conditioner with water cooling for garage use, particularly in hot summer conditions. Participants explore various cooling methods, including traditional air conditioners, evaporative coolers, and alternative cooling technologies.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests using water instead of air at the hot coils of a portable air conditioner, questioning how long the water could effectively function as a heat transfer medium before becoming too hot.
  • Another participant argues that water will heat up quickly, indicating that a water-based cooling system would require a continuous supply and drainage of water to remain effective.
  • Some participants propose connecting the air conditioner to a faucet for a constant water supply, while others express uncertainty about the practicality of this setup.
  • Evaporative coolers are mentioned as an alternative, with a participant explaining that they work by evaporating water to cool the air, but they require a way for hot air to escape.
  • There is confusion among participants regarding the concepts of evaporation and vaporization, with clarifications provided about their definitions and processes.
  • One participant introduces the idea of cooling towers, explaining their function in cooling substances in power stations and suggesting they could be adapted for a water source air conditioner.
  • Another participant mentions the potential of using a Stirling cycle cooler, typically used in specialized applications, as a different approach to cooling.

Areas of Agreement / Disagreement

Participants express a range of ideas and uncertainties regarding the effectiveness and practicality of different cooling methods. No consensus is reached on the best approach, and multiple competing views remain throughout the discussion.

Contextual Notes

Participants highlight limitations such as the need for a heat sink in portable air conditioners, the dependency of evaporative coolers on low humidity, and the potential for high water usage in open systems. There are also unresolved technical details regarding the efficiency and design of proposed systems.

  • #31
M-Funf said:
You could also make a "dry-air" evaporative cooler. This was invented some time ago, and my father's company manufactured these until about 15 years ago. Basically, it's an evaporative cooler with a twist:

Instead of using a wet fiber/wet cardboard medium and blow air across that, wrap some thin wall PVC tubing with material. Run water over them and recycle it back to the top. Draw outside air across those tubes and exhaust that air back outside. Draw air THROUGH the tubes. This air will be cooled as it passes through the tubes into the space to be cooled.

It's not as efficient, but it is as dry as the outside air...

Good Luck!
I like this. Perhaps arranged in two chambers one blowing in with water sprayed over cloth covered tubes and the other blowing out with tubes used to condense the evaporated water back out of the air and pump back from there. You can only bring in air if you take it out anyway, so why not use the slightly cooler air to help condensing?
 
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  • #32
fiberglass cloth makes a nice wicking material..
 

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