Steady State Operation of Cylindrical Loop Heat Pipe Evaporators
CLEMSON UNIV SC DEPT OF MECHANICAL ENGINEERING
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Loop heat pipe evaporators operating under steady state conditions were numerically investigated to describe evaporator characteristics and evaluate evaporator performance. Numerical solutions were obtained for conjugate flow and heat transfer in primary evaporator components. Two geometrical configurations used for cylindrical LHP evaporators, a non-bayonet evaporator and a bayonet evaporator, were considered to examine bayonet effects on evaporator operation. It was found that the presence of a bayonet significantly affects the flow and heat transfer in the liquid core. The influences of input heat flux, inlet liquid sub-cooling, external loop resistance, and effective thermal conductivity of the wick structure on evaporator performance were studied.
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