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RESEARCH PAPERS

A Study of High-Temperature Heat Pipes With Multiple Heat Sources and Sinks: Part II—Analysis of Continuum Transient and Steady-State Experimental Data With Numerical Predictions

[+] Author and Article Information
A. Faghri, M. Buchko, Y. Cao

Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH 45435

J. Heat Transfer 113(4), 1010-1016 (Nov 01, 1991) (7 pages) doi:10.1115/1.2911194 History: Received December 20, 1990; Revised June 04, 1991; Online May 23, 2008

Abstract

The experimental data presented in Part I were analyzed concerning the heat pipe performance characteristics and design. Postexperiment examination of the loosely wrapped screen wick revealed annular gaps both between the wick and the heat pipe wall and between adjacent screen layers, which greatly enhanced the maximum heat capacity of the heat pipe compared to the analytical capillary limit for a tightly wrapped screen wick. A numerical simulation for transient heat pipe performances including the vapor region, wick structure, and the heat pipe wall is given. Numerical results for continuum transient and steady-state operations with multiple heat sources were compared with experimental results and found to be in good agreement.

Copyright © 1991 by The American Society of Mechanical Engineers
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