All Questions
Tagged with thermal-radiation thermal-conduction
6 questions
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votes
1
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71
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Blower door DIY test
Since in my area there is no way to do a blower door test for a house, I was thinking to do a DIY blower door test. Here is my test scenario:
Preheat the house before testing to have 10 degree ...
0
votes
1
answer
917
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How to calculate the thermal conductivity of a composite material
Very new to thermal conductivity calculations, so I'm aware there are already queries on here that may cover this, but I'm struggling to apply them to this instance.
I'm trying to calculate the U-...
- 103
2
votes
1
answer
523
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Trapping sun heat the most - greenhouse
Greenhouse have recently caught my attention lately, which yesterday I posted in Why greenhouse's inside temperature never been infinitely hot?
From what I understand recently, greenhouse gases traps ...
- 83
1
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3
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323
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How to calculate the volume of air required to keep electrical box cool?
I have a steel electrical box that is 15 cm x 15 cm x 10 cm. The weight of the box is 1kg. Inside the box is a relay that loses 30 Watts of heat while in operation (it's attached to a heat sink that ...
1
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0
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45
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Flow of hot gasses around the pipe
I have the following problem: there is a copper pipe getting through a wooden wall. On one side of the wall (hot side), I have elevated temperature which is defined by radiation and convection. On the ...
- 161
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1
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77
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How cold for lack of heat?
I know that on the moon, while the daytime surface temperature can be above 270° F, in the shade but a few feet above the surface temperature can get quite low. Wondering whether a similar phenomenon ...
- 103