Fw: Air conditioning question

["Doug Johnson" <doug-johnson@email.msn.com>]

Avi,

That's enough power for a 3-6 ton air conditioner.
Enough to cool a fairly good sized house, or a black car.

Regards,

 - Doug


|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
|
|
|-----Original Message-----
|From: owner-quattro@audifans.com [mailto:owner-quattro@audifans.com] On
|Behalf Of Mike Arman
|Sent: Saturday, July 10, 1999 10:30 AM
|To: quattro@audifans.com
|Subject: Air conditioning question
|
|How many Hp does the a/c take on a 5000? Anyone know the rating or the #of
|BTUs the unit is rated at? Anyone have any general information on this?
|
|Thought came to me today about powering air conditioner compressors - all
|the car makers do it from the crankshaft - with all the attendant belt
|problems, miserable access, flex hoses from the wiggling engine to the rest
|of the unit, and they are a PITA to fix and keep running.
|
|Alternators can be easily rewired to give 110 volts - suppose we put an
|auxiliary (second, dedicated) alternator where the a/c compressor currently
|lives, and use the electricity (110 volts, at say, 6 or 7 amps) to drive a
|household style sealed A/c compressor, mounted with rubber mounts on the
|chassis - eliminates uneven engine drag, eliminates most rubber flex hoses.
|Even a separate electric motor driving the standard automotive compressor
|would be an improvement. And of course, you could mount this
|motor/compressor unit almost anywhere you wanted instead of making it share
|the crowded and hot real estate under the hood.
|
|Any thoughts on this?
|
|Best Regards,
|
|Mike Arman
|
|