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Heat pipe – 250x faster heat transfer than copper
A heat pipe is a heat-transfer device that employs phase transition to transfer heat between two solid interfaces.[1] At the hot interface of a heat pipe, a volatile liquid in contact with a thermally conductive solid surface turns into a vapor by absorbing heat from that surface. The vapor then travels along the heat pipe to the cold interface and condenses back into a liquid, releasing the latent heat.
Widely varying external conditions, such as eclipses Micro-g environment Heat removal from the spacecraft by thermal radiation only Limited electrical power available, favoring passive solutions Long lifetimes, with no possibility of maintenance Relative efficiencies of the evacuated tube system are reduced however, when compared to flat plate collectors because the latter have a larger aperture size and can absorb more solar energy per unit area. Retrieved 2020-10-20.^"Modeling and Design Optimization of Ultra-Thin Vapor Chambers for High Heat Flux Applications, R. Ranjan et al., Purdue University Cooling Technologies Research Center Publications, Paper 186, 2012".
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