Can makeshift air conditioning really work?

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SUMMARY

Makeshift air conditioning methods, such as using portable spot coolers, are often ineffective and can lead to equipment failure. HVAC engineers emphasize the importance of proper thermodynamic principles, as improper heat rejection can damage systems. For instance, using a spot cooler to reject heat into a ceiling plenum can cause premature motor failure. Additionally, repurposing refrigeration units for cooling applications, like PC water cooling systems, can result in significantly reduced operational lifespans.

PREREQUISITES
  • Understanding of thermodynamics principles
  • Knowledge of HVAC systems and their components
  • Familiarity with portable spot coolers
  • Experience with refrigeration cycle mechanics
NEXT STEPS
  • Research proper HVAC system design and heat rejection methods
  • Learn about the maintenance and lifespan of portable spot coolers
  • Explore thermodynamic principles relevant to air conditioning
  • Investigate the effectiveness of PC water cooling systems
USEFUL FOR

This discussion is beneficial for HVAC engineers, technicians, and anyone interested in understanding the limitations and proper applications of makeshift air conditioning solutions.

gregarob
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The caption of this photo was, "Makeshift air conditioning." I couldn't stop laughing. Someone needs to take a class in thermodynamics.
 

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Welcome to PF!

That's a common mistake, unfortunately. I'm an HVAC engineer and I've seen portable spot coolers used to augment insufficient air conditioning...with the spot cooler rejecting its heat into the ceiling plenum, where the air is picked-up by the room's built-in air conditioning. Oops.
 
Well, that motor won't last long. I had a large refrigerator that I broke down for use with a PC water cooling system and it only lasted about a week cycling it intermittently.
 

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