Research by the cu. ft part 2 (ME)

Mark Eatherton1

Attached please find the graphs of the "Wilsonized" R 10 foam box. At first glance, it appears that the aluminum has a definite effect on lowering radiant emissions.

There are some anomolies in the readings, and I can't explain them. Maybe aliens??

Whaddya think?

I'm preparing my third test. The R10 box with 1 Lb of water. We'll see what effect the "mass addition" has on the box.

TTFN

ME

kevin_5

I was discussing your "Night Sky Re-Radiation" with a friend I did a radiant job for. He seemed to "get it" and said it sounded sorta like "radiant windchill".
Someone mentioned your altitude affecting things, and I remembered staying in a hotel at 14,000 feet on the shores of Lake Titicaca in Peru. The water was so cold it hurt to brush your teeth. (I brushed 'em anway ;-)
Kevin

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jp_2

ground,sky, radiation

heres my idea.
first off:I don't claim I'm right here, just posting an idea or two.

the ground is the source of this radiation. the wave lenght and energy(w/m^2) of this radiation is proportional to ground temp. part of planck's law I think. so, outer space really isn't 'sucking heat' but not reflecting heat back to the ground. 'sucking heat' seems to imply a direct action, instead of a more passive 'just not reflecting' action.

the box is isolating air from the surrounding air. thus the ground radiation is trying to heat the box close to its own temp. box is eliminating short term effects as warm/cold fronts, clouds passing by, etc.. thats why I was curious about surface ground temp.

so maybe the second experiments foil is blocking this ground radiation and the box follows more closely to surround air temp. as it seems too.

my question is: since I can't find an article on sub cooling and nighttime radiation, does sub cooling reduce the objects temperature below ground temp or just below surround air temp?

would be quite interesting to see those 20-30 temperature differences you spoke about in th first post?

one confusing point, I wonder if this can be linked to something like; if you remove 100btu from a pot of water compared to a thimble full of water?

I think the first experiment will work the same on a cloudy night, be great if you gave it a try.

still like to hear boilerpros explanation of the attic warming due to night radiaion, can't come up with an idea?

once again, neat stuff mark!

jp_2

local weather

mark have you checked your surround air temp graph with local weather station?

Weather Underground has graphed history of the days temp, interesting to see if your ups & downs compare with their graphs?

most likely aliens though