All Questions
Tagged with building-physics heat-transfer
4
questions
0
votes
2
answers
53
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Advice needed on how to cool 50 ml liquid from 60 °C to 30 °C
In Short: I'm working on a project where we need to cool 50 ml of liquid from 60 °C to 30 °C or 20 °C. The liquid will be in a 150 ml copper container with an open top.
Due to the lack of skills in ...
2
votes
0
answers
50
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One dimensional U-Factor Calculation - How to determine indoor / outdoor film resistances
Can someone clarify the ASHRAE Fundamental 2017 (SI Units) (See Below) Indoor and Outdoor film resistances. The manual states that it comes from Table 3 and in the description of table 3 it states &...
1
vote
1
answer
107
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how would one calculate the % of heat not absorbed by a heat sink?
I'm planning on building a plant growth chamber inside a sealed/insulated 55 g rain barrel, and I'm trying to figure out how much of the heat from my lights will enter the chamber, and how much ...
1
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0
answers
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equivalent full hours of heating equipment
I would like to know if there is a standard way of calculating the equivalent to a capacity factor but for heating equipment. That is the ratio between the amount of heat delivered during one year ...