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03 September, 2008

Solar energy storage

The only relation to using glass that I can think of is if it is used as the
tank, it may conduct heat less quickly than other materials. Of course many
simple thermos bottles are glass but that is not an option for an existing
tank.

Better insulation won't increase how much energy you can put in the tank but
it will cut your heat loss. Also, the only other way to increase the energy
content of a given volume of water is to heat it to a higher temp. That's
where the insulation might help make it worth letting your solar collector
heat the water to a higher temp.

Another member posted about stone holding more heat. You want the most heat
storage per volume.

http://en.wikipedia.org/wiki/Specific_heat_capacity#Table_of_specific_heat_c
apacities

The only types of stone they list on that chart are graphite and granite -
water stores more than twice what either of these will store. Possibly
another reference elsewhere will list values for other types of stone.

Labels: Wind Turbine

Written at Wednesday, September 03, 2008 by Andy Mahoney.

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