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스터링 사이클 기기 열교환기의 열전달 해석

이대영;조관식;노승탁;강병하
Lee, Dae-Yeong;Jo, Gwan-Sik;No, Seung-Tak;Kim, Byeong-Ha

  • 발행 : 1996.04.01

초록

A theoretical analysis was performed on the heat transfer by laminar oscillating flow in a simplified heat exchanger of a Stirling cycle machine and the results were compared with the experiment of Hwang. In the analysis the general solution to the temperature field obtained by Lee et. al was applied and extended to a more realistic situation. The results show that the heat transfer is influenced by the ratio of the swept distance of the fluid to the length of the heat exchanger as well as the oscillation frequency. This is well consistent with the result of Hwang's experiment. It is also revealed that there exist three distinct regimes having different heat transfer mechanisms. Through the scale analysis the main parameters governing the heat transfer in each regime are reduced and the dependency of the heat transfer on the parameters are examined.

키워드

스터링사이클;재생기;유용도;왕복유동;왕복주파수;왕복유동거리