

| Subject: | Re: Idea for A/C and camping |
| From: | Per Lindgren |
| Date: | Fri, 19 Jun 1998 23:41:30 -0700 |
Otmar Ebenhoech wrote: > > >Ideally, you would want a 12v DC motor to run the entire system. A simple > >"transfer" switch would allow the power to be routed to the aux. motor and > >the a/c fans and controls. If memory serves, ac to dc converters are > >available from JC Whitney, and the "transfer" switch could be had from a > >electrical supply company or even a Home Depot. The fans and a/c controls > >would have to be rewired from the transfer switch so that no current flows > >back to the battery and charging system, but I do not think that would be a > >problem. > > Excuse me for not having read the whole thread, but wasn't someone > thinking of a 5 HP motor for this? > > 5 HP at 746W/HP = 3730W / 80% efficiency = 4662W / 12V = 388 Amps. > Even at 2 HP you're looking at drawing 155 Amps. > The 12V DC to AC inverter and/or the 12V charger for this size would be > very expensive and heavy. > > But I like the stationary AC idea. If it's only used when plugged > into outside AC power such as at a RV place. I could see it being done with > a hermetic compressor/motor unit out of a window AC unit. This could be > plumbed in parallel with the stock AC unit. Both the stock unit and the > stationary one would need check valves. > > I wonder how this would work. Ideas? > > -Otmar- > ------------------------------------------------------------------- > Electric Vehicle Components Ltd. > Otmar Ebenhoech mailto:Otmar@EVCL.com (650) 494-9255 > http://www.evcl.com/ > Energizer Bunny arrested, charged with battery. > Ban SUVs! http://www.howard.net/ban-suvs.htm > ------------------------------------------------------------------- I think the general idea of this setup was having a 110v ac motor running the a/c compressor, and a stationary charger/converter (instead of the alternator) that delivers power to the batteries, and using the onboard a/c system to cool the bus. Per Lindgren 88 Syncro (no a/c)
Have something to add on this topic today? Revive this thread in the forum »