설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)
- 제11권5호
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- Pages.700-708
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- 1999
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- 1229-6422(pISSN)
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- 2465-7611(eISSN)
딤플이 있는 판형 열교환기 관내측 열유동 최적화
A numerical study for optimizing the thermal and flow performance in the channel of plate heat exchanger with dimples
초록
The optimum dimple shape and arrangement in the channel of a plate heat exchanger with staggered dimples are proposed in this study. Four important geometric parameters are selected as design variables, the pressure drop and heat transfer characteristics are examined in the channel of plate heat exchangers. The optimization is accomplished by minimizing the global criterion function which consists of the correlations of Nusselt number and pressure drop. The optimum geometric parameters were found at the dimensionless dimple distance (L) of 0.272, the dimensionless dimple angle (
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