Posted by Scott on July 13, 2007, 12:22 am
Hello -
I live in a conventional suburban neighborhood, but on a recliamed
sand pit land. This forms a fairly large lake of about 20 acres and
25' deep. My house - a conventional wood framed brick venier job,
backs up to the water. I live in Texas, and of course it is hot a
large part of the year. The interesting part is that the deep lake
has a very cold layer of water in the bottom. Not sure of the exact
temp but I can get a reading fairly easily. One guy dove to the
bottom in a wet suit & scuba gear and claimed it was very cold - in
the summer. Lets say mid 40's or 50 degrees.
I had an idea of using the cold deep lake water to cool a fluid and
pump it up into the house, to the 3rd level mounting of all the
current evaporator, then through some sort of heat exchangers and back
down to the lake.
My initial excitement was dampened by the difficulty of pumping water
from the lake would likely use about the same amount of energy as the
air conditioner itself.
Any thoughts from the community?
Thanks in advance - Scott
Posted by George Ghio on July 13, 2007, 1:26 am
Scott wrote:
> Hello -
>
> I live in a conventional suburban neighborhood, but on a recliamed
> sand pit land. This forms a fairly large lake of about 20 acres and
> 25' deep. My house - a conventional wood framed brick venier job,
> backs up to the water. I live in Texas, and of course it is hot a
> large part of the year. The interesting part is that the deep lake
> has a very cold layer of water in the bottom. Not sure of the exact
> temp but I can get a reading fairly easily. One guy dove to the
> bottom in a wet suit & scuba gear and claimed it was very cold - in
> the summer. Lets say mid 40's or 50 degrees.
>
> I had an idea of using the cold deep lake water to cool a fluid and
> pump it up into the house, to the 3rd level mounting of all the
> current evaporator, then through some sort of heat exchangers and back
> down to the lake.
>
> My initial excitement was dampened by the difficulty of pumping water
> from the lake would likely use about the same amount of energy as the
> air conditioner itself.
>
> Any thoughts from the community?
>
> Thanks in advance - Scott
>
If there is a temp differential between the hot leg (from the house) and the
cold leg (to the house)
you might be able to get a thermo-siphon running.
--
Posted via a free Usenet account from http://www.teranews.com
Posted by nicksanspam on July 13, 2007, 3:39 am
>Scott wrote:
>> I live in a conventional suburban neighborhood, but on a recliamed
>> sand pit land. This forms a fairly large lake of about 20 acres and
>> 25' deep. My house - a conventional wood framed brick venier job,
>> backs up to the water. I live in Texas, and of course it is hot a
>> large part of the year. The interesting part is that the deep lake
>> has a very cold layer of water in the bottom...
>>
>> I had an idea of using the cold deep lake water to cool a fluid and
>> pump it up into the house, to the 3rd level mounting of all the
>> current evaporator, then through some sort of heat exchangers and back
>> down to the lake.
Sounds like a good idea. I'd make "the fluid" lake water.
>> My initial excitement was dampened by the difficulty of pumping water
>> from the lake would likely use about the same amount of energy as the
>> air conditioner itself.
>>
>> Any thoughts from the community?
Considerably less, I'd say, once the loop is primed.
>If there is a temp differential between the hot leg (from the house) and
>the cold leg (to the house) you might be able to get a thermo-siphon running.
What an idiot :-)
Nick
Posted by George Ghio on July 13, 2007, 8:08 am
nicksanspam@ece.villanova.edu wrote:
>
>> Scott wrote:
>
>>> I live in a conventional suburban neighborhood, but on a recliamed
>>> sand pit land. This forms a fairly large lake of about 20 acres and
>>> 25' deep. My house - a conventional wood framed brick venier job,
>>> backs up to the water. I live in Texas, and of course it is hot a
>>> large part of the year. The interesting part is that the deep lake
>>> has a very cold layer of water in the bottom...
>>>
>>> I had an idea of using the cold deep lake water to cool a fluid and
>>> pump it up into the house, to the 3rd level mounting of all the
>>> current evaporator, then through some sort of heat exchangers and back
>>> down to the lake.
>
> Sounds like a good idea. I'd make "the fluid" lake water.
>
>>> My initial excitement was dampened by the difficulty of pumping water
>>> from the lake would likely use about the same amount of energy as the
>>> air conditioner itself.
>>>
>>> Any thoughts from the community?
>
> Considerably less, I'd say, once the loop is primed.
>
>
>> If there is a temp differential between the hot leg (from the house) and
>> the cold leg (to the house) you might be able to get a thermo-siphon running.
>
> What an idiot :-)
>
> Nick
>
Well Nick, Sorry to hear you feel that way about yourself, but then given your
rep it is no surprise.
--
Posted via a free Usenet account from http://www.teranews.com
Posted by wmbjkREMOVE on July 13, 2007, 11:24 am
On 13 Jul 2007 03:39:29 -0400, nicksanspam@ece.villanova.edu wrote:
>>Scott wrote:
>
>>> I live in a conventional suburban neighborhood, but on a recliamed
>>> sand pit land. This forms a fairly large lake of about 20 acres and
>>> 25' deep. My house - a conventional wood framed brick venier job,
>>> backs up to the water. I live in Texas, and of course it is hot a
>>> large part of the year. The interesting part is that the deep lake
>>> has a very cold layer of water in the bottom...
>>>
>>> I had an idea of using the cold deep lake water to cool a fluid and
>>> pump it up into the house, to the 3rd level mounting of all the
>>> current evaporator, then through some sort of heat exchangers and back
>>> down to the lake.
>Sounds like a good idea. I'd make "the fluid" lake water.
>
>>> My initial excitement was dampened by the difficulty of pumping water
>>> from the lake would likely use about the same amount of energy as the
>>> air conditioner itself.
>>>
>>> Any thoughts from the community?
>Considerably less, I'd say, once the loop is primed.
>>If there is a temp differential between the hot leg (from the house) and
>>the cold leg (to the house) you might be able to get a thermo-siphon running.
>What an idiot :-)
Another day, another Ghio pearl. :-) He must wonder why people waste
money on AC instead of thermosiphoning well water.... Dutifully
added to http://www.citlink.net/~wmbjk/tbfduwisdumb.htm
Wayne
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>
> I live in a conventional suburban neighborhood, but on a recliamed
> sand pit land. This forms a fairly large lake of about 20 acres and
> 25' deep. My house - a conventional wood framed brick venier job,
> backs up to the water. I live in Texas, and of course it is hot a
> large part of the year. The interesting part is that the deep lake
> has a very cold layer of water in the bottom. Not sure of the exact
> temp but I can get a reading fairly easily. One guy dove to the
> bottom in a wet suit & scuba gear and claimed it was very cold - in
> the summer. Lets say mid 40's or 50 degrees.
>
> I had an idea of using the cold deep lake water to cool a fluid and
> pump it up into the house, to the 3rd level mounting of all the
> current evaporator, then through some sort of heat exchangers and back
> down to the lake.
>
> My initial excitement was dampened by the difficulty of pumping water
> from the lake would likely use about the same amount of energy as the
> air conditioner itself.
>
> Any thoughts from the community?
>
> Thanks in advance - Scott
>