D
[email protected]
- Jan 1, 1970
- 0
In alt.energy.homepower Robert Thompson said:Is concrete thermally insulating? If the ground is very pourous, it has
trapped air, that air will be very insulating.
Yes, but how is it going to be a problem on the time scale of winter vs
summer?
On another note, Spy Sattelites can tell how much heat is being produced by
airconditioning equipment, (chillers etc).
Yes; we have a thermal imaging camera that we use on our fire department,
where we can detect a handprint on a concrete wall, a minute after the
hand has been removed. It's also nice for spotting hot-spots inside
walls, warm electric outlets and wires, and that sort of thing.
If you used a ground source and
burried it under the parking lot, would a Sattelite be able to detect it?
Maybe. Detectable is one thing; being insulative over a period of 6 months
is something entirely different.
Dave Hinz