Mobile QR Code QR CODE : Korean Journal of Air-Conditioning and Refrigeration Engineering
Korean Journal of Air-Conditioning and Refrigeration Engineering

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleKorean J. Air-Cond. Refrig. Eng.
  • Open Access, Monthly
Open Access Monthly
  • ISSN : 1229-6422 (Print)
  • ISSN : 2465-7611 (Online)
Title Study on Effect of Channel Intrusion Depth on the Two-Phase Flow Distribution at Header-Channel Junction
Authors Jun Koung Lee
DOI http://dx.doi.org/10.6110/KJACR.2016.28.11.444
Page pp.444-449
ISSN 1229-6422
Keywords 유동분배 ; 2상 ; 헤더 ; 위치 변화 ; 돌출길이 Flow distribution ; Two-phase ; Header ; Position variation ; Intrusion depth
Abstract 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 16 mm×16 mm and 12 mm×1.8 mm, 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.