On Aug 2, 2014, at 6:10 PM, Lee Hart <[email protected]> wrote: > Since you live in AZ, why not an evaporative "swamp cooler"? They work pretty > well in low humidity environments.
Sadly, about half the hot season is humid enough for evaporative coolers to be ineffective. Some people have both systems in their homes, because they can save a few pennies that way...but, mot many, and mostly just those who initially had just a swamp cooler before upgrading to an heat pump. > A compressor *is* a heat pump. I think my confusion comes from the heat pump only being used for cooling...the heat pumps I'm familiar with all have as a selling point their efficiency at heating as well as cooling. > If the batteries are in an insulated box, they won't need much cooling to > keep them at a reasonable temperature. There are small "chiller" units, > intended for water coolers and vending machines that could do it. I think I first need to figure out just where I'm going to put the batteries before deciding how to cool them. A lot is going to depend on weight distribution...I know that's something critical, and I don't want to make the car back-heavy, front-heavy, top-heavy, or whatever. I can see various possibilities, from a single box near the rear axle to four boxes near each wheel to a single layer under the cabin to... ...and each would suggest a different approach to cooling.... b& _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
