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Tube-Bundle형 열교환기에서 액막 유동의 실험적 연구
쿠르반장(Kuerbanjiang Wusiman),정홍도(Hong-Do Jung),서창명(Chang-Myung Seo),정효민(Hyo-Min Jeong),정한식(Han-Shik Chung) 대한설비공학회 2011 대한설비공학회 학술발표대회논문집 Vol.2011 No.7
The rate of heat transfer that exists between falling liquid film and horizontal cylinder is generally high, for this reason, falling film is widely used several industrial processes.The study of this paper is to investigate experimentally the behavior of water film falling over the horizontal cylinders. Using experimental device we simulate the flow modes and film thickness to compare with the numerical results and present experimental result from the literature. The primary objective of the experimental study is to use numerical predictions(CFD), following experimental verification, to study the effects of liquid flow rate ,water film thickness, and Three-flow modes(droplet mode, jet or column mode ,sheet mode ) are observed when liquid films flow over horizontal cylinders ,finally to get the target of improving the rate of heat transfer in Multi Effect Desalination project.