VCHP의 작동특성에 관한 연구
A Study on the Operational Characteristics of the VCHP
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The operational characteristics of a VCHP in the various operation conditions were investigated. A water heat pipe including nitrogen gas as a non-condensable gas was designed and manufactured using a copper tube with 12.7㎜ diameter and 480㎜ length. Experimental data showed that the length of non-active zone mostly depend on the temperature of the vapor and the non-condensable gas. And the heat flow rate was negligible parameter at the same vapor temperature in the range of the experiment. As the vapor temperature increase and the non-condensable gas temperature decrease, the non active zone was increased. The calculated data by using the flat front model and the experimental results showed same tendency.
Abstract
The operational characteristics of a VCHP in the various operation conditions were investigated. A water heat pipe including nitrogen gas as a non-condensable gas was designed and manufactured using a copper tube with 12.7㎜ diameter and 480㎜ length. Experimental data showed that the length of non-active zone mostly depend on the temperature of the vapor and the non-condensable gas. And the heat flow rate was negligible parameter at the same vapor temperature in the range of the experiment. As the vapor temperature increase and the non-condensable gas temperature decrease, the non active zone was increased. The calculated data by using the flat front model and the experimental results showed same tendency.
참고문헌 (6)
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- Marcus, B. D., "Heat and Mass Transfer in the Vicinity of the Vapor- Gas Front in a Gas-Loaded Heat Pipe", ASME J. of Heat Transfer Trans., 94(2), pp.155~162 (1972)
- 박병규, "가스내장 히트파이프의 과도 열특성 해석", 설비공학 논문집, 13(6), pp.514~523 (2001), 대한설비공학회
- Rohani, A. R., "Steady Two- Dimensional Heat and Mass Transfer in the Vapor-Gas Region of a Gas Loaded Heat Pipe", ASME J. of Heat Transfer Trans., 95(4), pp.377~382 (1973)
- Peterson, P. F., "Numerical and Analytical Solution for Two-Dimensional Gas Distribution in Gas-Loaded Heat pipes", ASME J. of Heat Transfer Trans., 111(4), pp.598~604 (1989)