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VI 사이클 히트펌프 내부 열교환기용 다중관 열교환기의 특성해석 및 검증
장진용(Jin-Yong Jang),정지환(Ji-Hwan Jeong),박영성(Young-Sung Park) 대한설비공학회 2013 대한설비공학회 학술발표대회논문집 Vol.2013 No.6
Various vapor-injection (VI) cycles were known to improve the performance of heat pump in cold climate. An internal heat exchanger (IHEX) is used in the VI cycle heat pump to increase the subcooling of liquid refrigerant. Among various design options, multiple mini-tube (MMT) heat exchanger was considered as a realistic alternative due to limited installation space. In the present study, heat transfer in multiple mini-tube heat exchangers were numerically and experimentally investigated. Better performance was obtained when low temperature two-phase refrigerant flows through shell-side while high temperature liquid refrigerant flows through tube-side.
12" Wafer Final Polishing System 구조 특성 해석에 관한 연구
장진용(Jin-Yong Jang),이정훈(Jung-hun Lee),이은상(Eun-Sang Lee) 한국생산제조학회 2005 한국공작기계학회 추계학술대회논문집 Vol.2005 No.-
For giga-bits semiconductor device, high-precision wafers with 12inch diameter will be needed. The high-performance compact machine for 12inch wafer final polishing was designed. In this paper, Structural analysis was performed to develop Single-side Final Polishing System. Deformation and Stress analysis by gravity force, modal analysis for natural frequency, was performed using ANSYS with the first drafts of Single-side Final Polishing System. It is considered that improvement of the drafts is needed to strengthen stiffness.
12 Wafer Final Polishing System 구조 특성 해석에 관한 연구
장진용(Jin-Yong Jang),이정훈(Jung-hun Lee),이은상(Eun-Sang Lee) 한국생산제조학회 2005 한국생산제조시스템학회 학술발표대회 논문집 Vol.2005 No.10
For giga-bits semiconductor device, high-precision wafers with 12inch diameter will be needed. The high-performance compact machine for 12inch wafer final polishing was designed. In this paper, Structural analysis was performed to develop Single-side Final Polishing System. Deformation and Stress analysis by gravity force, modal analysis for natural frequency, was performed using ANSYS with the first drafts of Single-side Final Polishing System. It is considered that improvement of the drafts is needed to strengthen stiffness.