19 Oct
2007
19 Oct
'07
2:08 p.m.
On 19 Oct 2007 at 14:50, Richard wrote:
I had considered rammed earth using the technique
called "passive
annual heat storage". Basically you have a huge dry earth mass into
which you pump heat all summer long and draw heat out of it all
winter long. For a machine room, you'd probably want to do the
reverse: draw heat away from the machine room into the earth mass all
summer long and draw (some) heat out during the winter. To create
a dry earth mass large enough to provide sufficient cooling for a
machine room I'd need to do some calculations, but off the top of my
head I was figuring that the earth mass would need to be pretty
large. I was figuring I'd need to buy an empty lot instead of use
the back of my garage :-).
You could always drill a well and use a subterranean aquafer for
heating/cooling.... :)
Cheers,
Chuck