2023-08-04 at

Making Air Conditioners behave more like Dehumidifiers

I think I figured out how to make the AC behave less like a cooler, and more like a dehumidifier ... basically running the AC on dry mode at a high-ish temperature, say 28C, and with an additional fan aimed at the present humans.

This is roughly explainable as :

  • there is an increased velocity of air flowing against the wet-bulb (bodies)
  • ... causing an increase in the rate of evaporative cooling ( correspondingly reduced WBT )
  • ... causing an increase in cold-room humidity
  • ... causing an increase in the rate of cold-room condensation, upon the evaporator of the heat-pump
  • ... causing a decrease in the cooling-capacity of the heat-pump, upon the cold-room

Electrical optimisation for HVAC in the tropics.

Problem statements :

- Humidity is the main problem ... so higher temperatures are acceptable as long as rH is minimised.

- The correct { rH, windSpeed, temperature } results in the absence of noticeable sweat.

- The optimum air temperature is greater than the current tap water temperature, such that unheated showers/baths are able to cool bodies further.

- An acceptable wind speed is non-distracting.

Solution statement :

So to minimise electrical consumption, one targets

- to FIRSTLY maximise non-distracting wind speed, and

- to SECONDLY, design heat pump systems which
- - maximise condensate collection,
- - without raising air temperatures at all, and
- - without excessively dropping air temperatures

No comments :

Post a Comment