heat transfer with conduction and radiation heat transfer problem
heat transfer with conduction and radiation heat transfer problem
(OP)
hello
I am designing a cryogenic tank that stores liquid hydrogen. we are trying to estimate the heat transfer with our insulation approach. I will attach a picture of our model. can anyone be so kind to help us come up with a heat transfer equation based on our model? thank you.
I am designing a cryogenic tank that stores liquid hydrogen. we are trying to estimate the heat transfer with our insulation approach. I will attach a picture of our model. can anyone be so kind to help us come up with a heat transfer equation based on our model? thank you.





RE: heat transfer with conduction and radiation heat transfer problem
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RE: heat transfer with conduction and radiation heat transfer problem
The problem is 1D of course and so the equation through each region will be T=ax+b. At the boundary points the heat flow will be by radation to the opposing surface. You'd need 6 equations for the 3 regions to find a and b, and each equation would involve T^4 for the radiation. Better to use finite elements or finite difference methods to solve for T everywhere.
Tata
RE: heat transfer with conduction and radiation heat transfer problem
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FAQ731-376: Eng-Tips.com Forum Policies
RE: heat transfer with conduction and radiation heat transfer problem
RE: heat transfer with conduction and radiation heat transfer problem
This is just an estimate so I assumed t1 to be 296k and t2 to be 24k. Our heat transfer was around 1.9watts which is extremely good considering before the insulation our heat transfer rate was around 500,000 watts.
RE: heat transfer with conduction and radiation heat transfer problem
RE: heat transfer with conduction and radiation heat transfer problem
should help
RE: heat transfer with conduction and radiation heat transfer problem
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RE: heat transfer with conduction and radiation heat transfer problem
Let's try again
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RE: heat transfer with conduction and radiation heat transfer problem
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: heat transfer with conduction and radiation heat transfer problem