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Heat Storage

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Posted by Darwin on October 18, 2005, 1:47 am
This may sound dumb, but is there a way to store heat?  I would like to
store the heat that is not utilized during the day for uses at night.
Not as electricty thought, just the heat collected from solar
collectors.  Does anyone have any suggestions?



Posted by Anthony Matonak on October 18, 2005, 3:36 am
Darwin wrote:

It's not a dumb idea. Lots of folks store heat. This is where the
idea of thermal mass comes from, how much heat something can store.

Basically, there's two ways to store the heat (with some frills on
top of that). The first is simply to let something get warmer, like
a large pile of stones or a big tank (or lots of little tanks) of
water. The second is to let something get warm enough so it melts.
This is called "phase change" and it stores a lot more heat than
the first method. Typically you'll want something that melts at the
temperature you're interested in, say 72F for indoor spaces, 110F
for water heating and 500F for cooking.


Posted by Gian Carlo on October 19, 2005, 9:36 pm
 Hi Darwin,
perhaps sorpion energy ?
Here one link


Gian Carlo

Posted by Darwin on October 20, 2005, 2:24 am
 Thanks for all your help.  I was planning on using the heat for
adsorption chiling in the first place.  I didn't know that it could be
a form of heat storage, thanks.  As for phase change, do you guys think
using things like wax or sand could work?  The sand would provide the
surface area to store the heat while the wax takes in energy through
phase change.

Thanks again,


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