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re: lp gas water heater w/ exchanger loop
8 jan 1998
don kulha wrote:
>...the more i think about it the more likely i am to forget the water heater
>angle and go for a pure solar hot water system for the time being...
you might also consider using the "solar waste heat" from an amorphous pv
panel (12 times the electrical output :-) for water heating, something like
applebee's restaurant system described in the jan/feb 1998 issue of solar
today. their pv shingles have no transparent cover, and 25% of the pv output
is used to run a fan for an air-water heat exchanger. this might be improved
with a transparent cover for the pvs and a direct-coupled heat exchanger, eg
some pipes or tubing or a water-filled rubber bladder underneath, or a clear
plastic bag of water above them, or some water trickling over their faces,
with a good thermal bond to the pvs, which could be mounted flat, with a
mildly-concentrating hinged overhead reflector.
nick
nicholson l. pine system design and consulting
pine associates, ltd. (610) 489-0545
821 collegeville road fax: (610) 489-7057
collegeville, pa 19426 email: nick@ece.vill.eedeeyou
computer simulation and modeling. high performance, low cost, solar heating and
cogeneration system design. bsee, msee. senior member, ieee. registered us
patent agent. solar closet paper: http://leia.ursinus.edu/~physics/solar.html
web site: http://www.ece.vill.edu/~nick
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