[TriLUG] OT: thermodynamics of A/C question

[Joseph Mack NA3T]

On Wed, 4 Jul 2012, Steve Litt wrote:

>> The assumption was that the A/C is a Carnot machine and in
>> the early morning the condenser would be operating at a
>> lower temperature. From the Carnot cycle efficiency formula,
>> I expected I'd get 50% more efficiency.
>>
>> No-one had an answer to this

> I saw lots of answers to this.

I must have missed them. What's the increase in efficiency 
(or cost savings) from moving a fixed number of BTUs in the 
early morning when the air is cool compared to late 
afternoon when the air is hot?

> I saw plenty of other answers, many suspecting that you 
> WOULD be better off running it at offpeak hours.

yes I saw them

Joe

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