Abstract
A conjugate heat transfer problem involving conduction heat transfer in the wall and film condensation on the inside of a finned, coaxial rotating heat pipe was solved numerically using a finite element technique. Results were obtained for a prescribed set of heat pipe operating parameters using water and Freon-113 as working fluids. The effects of the number of fins, the heat pipe rotational speed, and the magnitude of the outside heat transfer coefficient were studied, as well as the importance of wall thermal conductivity. The resulting methodology can be used to arrive at an optimum fin geometry for a particular application.
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