Predicting Frost Formation Rate: A Solvable Problem?

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Predicting the rate of frost formation around a pipe carrying cryogenic fluid is complex due to numerous variables, including heat gain from frost formation and significant losses from convection, radiation, and conduction. Experimental analysis is suggested as a potential solution, but the feasibility of making accurate assumptions is questioned. The discussion highlights the challenges of calculating frost formation rates accurately, emphasizing the intractability of the problem. Some participants suggest that proper insulation could mitigate the issue effectively. Ultimately, the consensus leans towards practical solutions over theoretical calculations.
raveen323
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Hi,
Could you please explain me how to predict the rate of formation of frost around a pipe carrying cryogenic fluid if the relative humidity is known?

I am not able to make any assumptions as frost is porous.
Is experimental analysis the only solution to this problem ?
Can it be solved by taking some assumptions?

Raveen
 
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I would hazard that this would be a wildly intractable problem.
There are so many variables.

If I were forced to take a stab at it, I'd have to assume that the main heat gain was due to the frost formation so that the latent heat of melting/freezing would be the major factor. But that neglects the very significant losses by convection, radiation and conduction, which are incalculable. I doubt that the answer would be even close to reality.

Why not just lag it well and good and forget about the problem?
 
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