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공조용 열교환기 증발관에서의 서리 발생에 관한 메커니즘의 실험적 연구
지재훈(J-H Jee),문성배(S-B Moon),오철(C Oh) 한국해양대학교 해사산업연구소 2005 海事産業硏究所論文集 Vol.16 No.-
The object of this experiment is comparing generate frost layer condition by inlet air"s velocity, temperature and relative humidity on the copper tube in evaporator. in this experiment, inlet air"s velocity is 0.3 ㎧, 0.6 ㎧, 0.9 ㎧, temperature is 15℃, 20℃, 25℃and relative humidity is 70% - 90%. And brine temperature that flowing the copper tubes was kept -15℃. because, generally cooling temperature range is constantly -15℃ in the heat exchanger for air conditioning system. experiment an effect indicated that take a picture by digital camera on the test section for He-Ne laser reverberation.
유동장을 동반한 수직 원관 주위의 폐수동결에 관한 실험적 연구
김정식(J-S Kim),원종호(J-H Won),배성우(S-W Bae),지재훈(J-H Jee),오철(C Oh) 한국해양대학교 해사산업연구소 2005 海事産業硏究所論文集 Vol.16 No.-
The study was experimentally performed to investigated waste water freezing behavior in circular tube. The experiments were carried out for a variety of parameter, such as air-bubble flow rate, and cooled-plate temperature. It was found that the experimental parameters gave a great influence on the freezing rate and a heavy metal concentration of the waste-water.