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배플이 설치된 잠수함 압축기용 오일 냉각기의 전열 성능에 관한 수치연구
이관근(Kwan Geun Lee),이준경(Jun Kyoung Lee),방영준(Young Jun Bang),신환준(Hwan Jun Shin),장덕호(Deok ho Jang),정금수(Keum Soo Jeong) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
Ultra high pressure air compressor for special ships, including submarines needs to be developed to reduce the weight and volume. Related with the components of new type compressor, it is necessary to develop the shell and tube type heat exchanger(HX) for cooling compressor oil. For the shell and tube type HX without baffle, by utilizing commercial software ANSYS Fluent, we could verify that the experimental results were relatively well predicted comparing with the CFD results. Furthermore, the cooling performances were calculated for the shell and tube type HX with some cases of baffle numbers and area. The cooling performance of the HX with baffle was higher than that of the HX without baffle. But the effect of baffle numbers was minor. And the cooling performance increases with larger baffle area. But the pressure drop of cooling water increases with increase of baffle numbers and area. From the results of case study, the optimum baffle numbers and area for the high cooling performance could be suggested.