Re: Air conditioning question

[John Cunningham <johnc@together.net>]

it just seems to me that it would never make sense to convert to a system with
significant additional frictional and heat energy losses from an unnecessary set
of steps:

- making electricity from kinetic energy with a big alt.
- converting the electricity back to kinetic energy with an electric motor

johnc

Avi Meron wrote:

> No dice Mike,
> An AC comp. takes about 3-6 BHP, piston compressor more than rotary
> compressor and variable compressors "obviously" vary in load depend on
> demand. A variable compressor can have a displacement of 14CC in minimum
> stroke and 170CC at max stroke.
>
> As for using electricity for running an AC compressor lets look at the math:
> Your compressor needs 5 BHP (a guess)
> 1 BHP app. 750 Watt
> 5 BHP times 750 Watt =  3750 Watt
> 3750 Watt divided by 13Volt= 288AMP
> You will need an alt. of 288AMP which will use (guessing) more BHP than an
> AC compressor
>
> Not a good idea, especially when you can use a variable displacement comp.
> which is very efficient.
>
> Avi
>