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3 votes
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Is it inefficient to turn off the airconditioner for short durations of less than two hours?

I was recently recommended not to turn off the airconditioner (A/C) when leaving a room for two hours or less but instead to increase the temperature setting closer to the outside temperature. ...
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2 votes

Estimating real, overall efficiency of an air conditioning unit

The efficiency of an air conditioning unit is a simple division: divide heat extracted from the cold reservoir by the amount of work it takes to extract that heat. Note that an air conditioning unit ...
juhist's user avatar
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1 vote

For Electric vehicles, HOW are miles per gallon equivalent (or L/100 Km) calculated, accounting for different sources of energy in the grid?

None of any "equivalent" figures make any sense. Electricity and amount of liquid fuel have no relation to each other. Any relation "estimated" would be totally and completely ...
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