Alternative Power sources

Author

Heat sink

John H

2005-12-07, 2:21 pm

There are a lot of ways to steadily gather heat but not to store it for
long.
I wonderhow much heat could be stored in a round insulated tank (buried?) to
be used as required.
John

BobG

2005-12-07, 7:21 pm

A gallon of water is about 8 lbs. A BTU will raise one lb of water 1
deg F. 3412 BTUs is a KW. I guess a 1000 gallon tank heated up to about
210 deg F would have a million or so BTUs in it. How you gonna use em?
Baseboard heaters?

John H

2005-12-07, 8:21 pm

I was thinking of a system where water is heated by the sun, collected in a
wall,roof or driveway, stored in a round, insulated tank , and then released
by a radiator (collect, concentrate, maintain, release).
John
.. "BobG" <bobgardner@aol.com> wrote in message
news:1133994364.776912.302500@o13g2000cwo.googlegroups.com...
>A gallon of water is about 8 lbs. A BTU will raise one lb of water 1
> deg F. 3412 BTUs is a KW. I guess a 1000 gallon tank heated up to about
> 210 deg F would have a million or so BTUs in it. How you gonna use em?
> Baseboard heaters?
>

Ashley Clarke

2005-12-07, 8:21 pm

"John H" <89s@yahoo.com.au> wrote in message news:4397237a@clear.net.nz...
> There are a lot of ways to steadily gather heat but not to store it for
> long.
> I wonderhow much heat could be stored in a round insulated tank (buried?) to
> be used as required.
> John

You are stating the obvious of course and heat is normally converted into
something else before it is stored!
Heat itself requires defining in terms of the particular medium it is keeping
hot.
Some materials will release heat quicker than others and be able to store it
more
efficiently, etcetera...

-----------------------------------------------------------------------
Ashley Clarke
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Anthony Matonak

2005-12-08, 1:21 am

John H wrote:
> There are a lot of ways to steadily gather heat but not to store it for
> long.
> I wonderhow much heat could be stored in a round insulated tank (buried?) to
> be used as required.

If the tank is large enough, you can store almost any amount of energy.
Say you start with a tank half a mile across and, say, a mile deep, fill
it with molten lead, insulate extremely well... you get the picture.

Perhaps a better question might be "How much heat do I want to store?"
"How long do I want to store it?" and other such things.

You might also do web searches on "Seasonal Energy Storage".

Anthony

John H

2005-12-09, 8:21 pm

I would have to start by asking how much heat I could store in a reasonably
sized structure, about the size of a septic tank(?). Cost would be a
limiting factor, but I was just musing about how a deck/concrete driveway
may be used to passively collect heat.
I found some interesting links.
John
"Anthony Matonak" <anthonym40@nothing.like.comcast.net> wrote in message
news:paCdnTv09-QAXAreRVn-ig@comcast.com...
> John H wrote:
>
> If the tank is large enough, you can store almost any amount of energy.
> Say you start with a tank half a mile across and, say, a mile deep, fill
> it with molten lead, insulate extremely well... you get the picture.
>
> Perhaps a better question might be "How much heat do I want to store?"
> "How long do I want to store it?" and other such things.
>
> You might also do web searches on "Seasonal Energy Storage".
>
> Anthony

Ignoramus17480

2005-12-09, 8:21 pm

On Sat, 10 Dec 2005 12:31:28 +1300, John H <89s@yahoo.com.au> wrote:
> I would have to start by asking how much heat I could store in a reasonably
> sized structure, about the size of a septic tank(?). Cost would be a
> limiting factor, but I was just musing about how a deck/concrete driveway
> may be used to passively collect heat.
> I found some interesting links.

It is not rocket science, calculate the mass of water and know that
one kg of water stores 4,200 joules per degree celsius.

i

> John
> "Anthony Matonak" <anthonym40@nothing.like.comcast.net> wrote in message
> news:paCdnTv09-QAXAreRVn-ig@comcast.com...
>
>

--

John H

2005-12-22, 3:21 pm

The question: is how quickly would it loose its heat? (I realise this would
depend on the level of insulation, size shape. It may be good enough to
smooth out he wrinkles in winter).
John
"Ignoramus17480" <ignoramus17480@NOSPAM.17480.invalid> wrote in message
news:cxomf.15436$T25.3498@fe64.usenetserver.com...
> On Sat, 10 Dec 2005 12:31:28 +1300, John H <89s@yahoo.com.au> wrote:
>
> It is not rocket science, calculate the mass of water and know that
> one kg of water stores 4,200 joules per degree celsius.
>
> i
>
>
>
> --
>

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