Steady-state performance of a rotating miniature heat pipe

Author

Lin, Lanchao ; Faghri, Amir

Author_Institution

Dept. of Mech. Eng., Connecticut Univ., Storrs, CT, USA

Volume

4

fYear

1997

fDate

27 Jul-1 Aug 1997

Firstpage

2295

Abstract

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

Keywords

drag; friction; heat pipes; hydrodynamics; laminar flow; numerical analysis; pipe flow; 2D laminar liquid flow; axial liquid flow; friction coefficient; hydrodynamic performance; liquid-vapor interfacial shear stress; mathematical model; numerical analysis; operating conditions; operating temperature; optimum liquid fill amount; pressure drops; rotating miniature heat pipe; rotational speed; steady-state performance; vapor drag effect; Cooling; Fluid flow; Friction; Heat engines; Heat pumps; Hydrodynamics; Mathematical model; Mechanical engineering; Numerical analysis; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Engineering Conference, 1997. IECEC-97., Proceedings of the 32nd Intersociety

Conference_Location

Honolulu, HI

Print_ISBN

0-7803-4515-0

Type

conf

DOI

10.1109/IECEC.1997.658225

Filename

658225