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Steady-state performance of a rotating miniature heat pipe

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2 Author(s)
Lin, L. ; Dept. of Mech. Eng., Connecticut Univ., Storrs, CT, USA ; Faghri, A.

The operating principle of a rotating miniature heat pipe (RMHP) with a grooved inner wall surface is addressed. A mathematical model of the hydrodynamic performance of RMHPs is developed. A simple correlation for the friction coefficient of axial liquid flow including a vapor drag effect is proposed based on the numerical analysis of 2D laminar liquid flow in a groove. With the present model, the maximum performance and optimum liquid fill amount of RMHPs are predicted under various operating conditions. Influences of operating temperature, rotational speed and liquid-vapor interfacial shear stress on the maximum performance and optimum liquid fill amount are discussed. Pressure drops of the axial liquid flow and vapor flow are demonstrated

Published in:

Energy Conversion Engineering Conference, 1997. IECEC-97., Proceedings of the 32nd Intersociety  (Volume:4 )

Date of Conference:

27 Jul-1 Aug 1997