http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
열교환기용 외경 9.52㎜ 마이크로휜 관의 고성능화 및 경량화에 관한 연구 : 증발 열전달 특성
임용빈(Yongbin IM),하야세 가쿠(Gaku HAYASE),최용화(Yonghwa CHOI),김영민(Youngmin KIM),최형서(Hyoungseo CHOI),길성호(Seongho KIL),윤백(Baek YOUN) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
This paper reports a development of the Samsung electronics' new 9.52 ㎜ micro-fin tube for an air-conditioner and heat pumps. To optimize the micro-fin structure effect on the heat transfer characteristics and unit mass of the tube, empirical correlations are used and verified with experiments for a single-tube and a finned tube type heat exchanger. An experimental investigation of condensation heat transfer is conducted and R-22 is used as test refrigerant. The unit mass of the optimized micro-fin tube against the conventional tube is 12% lighter although wall thickness and strength of the burst pressure are the same degree. The evaporating heat transfer coefficient of the new 9.52 ㎜ micro-fin tube' is increased and the refrigerant pressure drop is decreased compare with the conventional tube. Also, the unit weight per length of the new tube is reduced.