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Originally Posted by bobo5195
heatpipes are quite easy to model using 1D FEA analysis however the problem is degration with time is kinda complicated.
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I thought one of the benefits of heatpipes was years of maintenace free service due to lack of moving parts (bar the coolant itself, of course).
What causes the degregation, and how marked is the effect? Down to 50% of initial performance over what time frame? How big a drop over, say, 5 years?