Modelling Loop Heat Pipe (effective thermal conductivity)

hajakala · July 17, 2023, 06:42

Hello. I am a user of FloEFD, often modelling heat pipe and vapor chamber as a heat spreader by assigning an effective thermal conductivity, rather than trying to simulate the actual phase transformation.
I was wondering if anyone could give me an advice on how to model a loop heat pipe, where the structure is separated into liquid and vapor lines. In this case, how can I model it using effective thermal conductivity? Or is there any other method of modelling the loop heat pipe?

Thanks for your help.

native · July 19, 2023, 08:25

Hello Joe

I didn't model heat pipes yet. But maybe could it be a possibility to model the loop heat pipe as an assembly. By using several parts fitted together in the assembly you could assign different effective thermal conductivities to these different parts.

Regards
Florian

July 17, 2023, 06:42	Modelling Loop Heat Pipe (effective thermal conductivity)	#1
hajakala New Member Joe Join Date: Dec 2020 Posts: 3 Rep Power: 5	Hello. I am a user of FloEFD, often modelling heat pipe and vapor chamber as a heat spreader by assigning an effective thermal conductivity, rather than trying to simulate the actual phase transformation. I was wondering if anyone could give me an advice on how to model a loop heat pipe, where the structure is separated into liquid and vapor lines. In this case, how can I model it using effective thermal conductivity? Or is there any other method of modelling the loop heat pipe? Thanks for your help.

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July 19, 2023, 08:25		#2
native New Member Florian Join Date: Feb 2015 Posts: 13 Rep Power: 11	Hello Joe I didn't model heat pipes yet. But maybe could it be a possibility to model the loop heat pipe as an assembly. By using several parts fitted together in the assembly you could assign different effective thermal conductivities to these different parts. Regards Florian