Thanks, Dennis. Your description of a cooling system -- cold plates and a radiator -- seems like a good starting point. I might have to contemplate adding some sort of an active chiller rather than just rely on a radiator -- again, ambient is often well over 100°F, and can easily get over 120°F near the road surface.
Your suggestions on weight distribution have started me down the path of investigating ideal car weight distribution ratios. Since I'll be keeping the V8, and based on what I've been reading so far, the space in the trunk right over the rear axle, right behind the rear seat, might be the best place for all the batteries, but I won't know until I can get the car on scales -- and that won't make sense to do until after all the non-EV work is done. There's also actually some room in the engine compartment, and even a fair bit of room in the front wheel wells (well clear of the wheels). ...but at least I have a better idea of where to go from here.... b& On Aug 4, 2014, at 7:40 PM, Dennis Miles via EV <ev@lists.evdl.org> wrote: > Battery cooling, and packaging. I do not like the battery configurations > many of the Mass Produced units are designed with. My idealized pack is in > two battery boxes , one is between the front wheels giving the > understeering handling we are used to.(The car tends go straight) And the > second is in front of the rear axle to minimize drifting or skidding on > slick surfaces. (Extra weight gives more traction.) The cooling to be > accomplished with several cold plates between the cells (Like the noodles > in lasagna.) With hoses (Or tubing) connecting to a simple radiator for > cooling the non-flammable coolant circulated by a electric pump which can > be switched off in cold weather. Put the radiator in the front like an ICE > unit or under the cabin floor if a Grill is not in your styling scheme. Put > the electric motor(s) in the location used by ICE transmissions. In the > winter you can pre-warm the battery cells by use of an aftermarket ICE > engine block heater immersed in the coolant below the packs (Warm liquid > rises)during charging and while parked at other times on cold days to keep > them warm (Usually outlets are provided in colder climates.) > > Dennis Lee Miles > > (*evprofes...@evprofessor.com <evprofes...@evprofessor.com>)* > > * Founder: **EV Tech. Institute Inc.* > > *Phone #* *(863) 944-9913 (12 noon to 12 midnight Eastern US Time)* > > *Educating yourself, does not mean you were **stupid; it means, you are > intelligent enough, **to know, that there is plenty left to learn!* > > * You Tube Video link: http://youtu.be/T-FVjMRVLss > <http://youtu.be/T-FVjMRVLss> * > > > On Mon, Aug 4, 2014 at 10:02 PM, Ben Goren via EV <ev@lists.evdl.org> wrote: > >> On Aug 2, 2014, at 6:10 PM, Lee Hart <leeah...@earthlink.net> 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) >> >> > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140804/9174e01f/attachment.htm> > _______________________________________________ > 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) > -------------- next part -------------- A non-text attachment was scrubbed... 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