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Analysis of Thermal Control Characteristics of VCHP by the Charging Mass of Non-Condensible Gas  

Suh, Jeong-Se (School of Mechanical & Aerospace Engineering, GyeongSang National University)
Park, Young-Sik (Department of Car-Electronics, Korea Polytechnic VII College)
Chung, Kyung-Taek (School of Mechanical & Aerospace Engineering, GyeongSang National University)
Kim, Byoung-Gi (School of Mechanical & Aerospace Engineering, GyeongSang National University)
Publication Information
International Journal of Air-Conditioning and Refrigeration / v.14, no.4, 2006 , pp. 125-130 More about this Journal
This study has been performed to investigate the thermal performance of variable conductance heat pipe (VCHP) with screen meshed wick. The active length of condenser section in a VCHP is varied by non-condensible gas, which controls the operating temperature, and the heat capacity of VCHP is controlled by the operating temperature. In this study, numerical analysis of the VCHP based on the diffusion model of non-condensible gas is done for the thermal control performance of VCHP. Water is used as a working fluid and nitrogen as a control non-condensible gas in the copper tube. As a result, the thermal conductance of VCHP has been compared with that of constant conductance heat pipe (CCHP) corresponding to the variation of operating temperature.
Variable conductance heat pipe; Non-condensible gas; Mass fraction; Mesh wick; Thermal control;
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