Which affects my car’s energy efficiency more: raising/lowering the setting on my car’s air conditioner, or raising/lowering the fan speed? Is there a most-efficient setting?
In: Engineering
There’s an old (accurate) joke that turning off the ac is smaller cars before climbing hills, etc was a requirement because they suck so much performance. I’ve had cars where I could visibly feel the difference in performance when the ac is on.
The ac compressor is belt driven off the engine, using and sucking engine power.
The fan is electric and consuming almost none of it.
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