Home mobile air conditioning: Is this a contradiction to thermodynamics?

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SUMMARY

The discussion centers on the functionality of portable air conditioners, particularly in the UK climate. Participants clarify that portable air conditioners, such as the DeLonghi Pinguino PAC EM77, utilize either heat pump technology or evaporative cooling methods. Heat pumps require an exhaust vent to the outside, while evaporative coolers do not, making them less effective in humid environments. The consensus is that while portable air conditioners can provide relief during rare heat waves, they are not a long-term solution for cooling in humid climates.

PREREQUISITES
  • Understanding of heat pump technology
  • Knowledge of evaporative cooling principles
  • Familiarity with indoor humidity control
  • Awareness of portable air conditioning models, such as the DeLonghi Pinguino
NEXT STEPS
  • Research the differences between heat pump and evaporative cooling systems
  • Learn about indoor humidity control techniques and their impact on comfort
  • Explore the installation requirements for ductless split systems from brands like Mitsubishi
  • Investigate energy-efficient insulation solutions for homes
USEFUL FOR

Homeowners, HVAC professionals, and anyone interested in understanding the effectiveness of portable air conditioning systems in varying climates.

  • #31
hmmm27 said:
Ah, so very large coldside radiator required. (For some reason I previously thought it was in the 1/10atm range, not 1/100th : checked)
And this is a snag. Any self contained unit would have to use air because it involves only an air hose (or two), going outside with no heat exchanger 'outside on the wall'. These portable units are just so practical, compared with a whole system and the best system in most cases is surely to use good insulation, so the heat never gets inside in the first place. But you can't drive home with that in the car and begin using it in the minutes.

This issue will affect many people in Europe a lot more than it ever has so a re-think is necessary for house builders and (lol) the government.
 

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