Why do air conditioners and refrigerators have to keep turning on and off to keep the air within a temperature range, instead of adjusting their output to maintain an exact temperature?
In: 2163
Because the cooling process in AC, fridges, etc is vapour compression. There’s a compressor, it’s either on or off.
Variable speed compressors have become available, in recent years, but the simplest, cheapest option is an on/off motor.
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