헤더-채널 분기관의 채널 돌출길이가 2상 유동 분배에 미치는 영향에 대한 연구

• Published in: 설비공학 논문집, 28(11) Vol. 28; no. 11; pp. 444 - 449
• Main Author: 이준경(Jun Koung Lee)
• Format: Journal Article
• Language: Korean
• Published: 대한설비공학회 2016
• Subjects: 기계공학; Position variation(위치 변화); Flow distribution(유동분배); Header(헤더); Two-phase(2상); Intrusion depth(돌출길이); 2
• ISSN: 1229-6422; 2465-7611
• DOI: 10.6110/KJACR.2016.28.11.444

The main objective of this work is to experimentally investigate the effect of angle variation and intrusion depth of channels on the distribution of two-phase flow at header-channel junctions. The dimensions of the header and the channels in cross-section were fixed at $16mm{\times}16mm$ and $12mm{\times}1.8mm$, respectively. Air and water were used as the test fluids. Two different header-channel positions were tested : a vertical header with horizontal channels (case VM-HC) and a horizontal header with horizontal channels (case HM-HC). In all cases, the intrusion depths of the channels are 0 mm, 2 mm, and 4 mm. For the case of the intrusion depth of VM-HC, the flow distribution became more uniform. However, the intrusion depth negatively affected the flow distribution for the case of HM-HC because liquid separation delay occurred.