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모종근(Joung Gun Mo),신재호(Jae Ho Shin),배철환(Chul Whan Bae),서정세(Jeong Se suh),정한식(Han Shik Chung),정효민(Hyo Min Jeong) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
We was made 150L an water storage electric boiler and obtained various performances of the storage, radiant and keeping by experimentation. The storage performance is that the heat were off about 50 minutes after heating start. Then the temperature of outlet was arrived the stead state at 91°C and the storage performance was appeared 93,64%, In the radiant performance, the water temperature was decreased from 90°C to 44.8 °c after 960 minutes, Then the calorific value changed<br/> from 675kcal/h to 72kcal/h and the temperature decreased about 50%, The keeping performance showed mean temperature, 67,06°C according to progress 800 minutes and the maximum temperature drop were O.Z.C. By the results of the performance valuation, the water storage electric boiler was verified fitted quality on the test prescription of KERI(Korea Electrotechnology Research Institute).
인공태양에 의한 이중 진공 유리관의 집열특성에 관한 연구
남용한(Yong-Han Nam),신재호(Jae-Ho Shin),모종근(Joung-Gun Mo),정한식(Han-Shik Chung),정효민(Hyo-Min Jeong),서정세(Jeong-Se Suh) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
This paper represents the solar collector performance with type of an evacuated double glass, and a copper tube was installed in center of collector to get a solar thermal energy. The one module of solar collector and artificial sun were used in this experiment. The distance between artificial sun and solar collector was fixed at 0.5m, and this experimental condition was focused on winter season. The experiments were carried out three times for getting a accurate data and the heat amount of one module evacuated solar collector was estimated about 48 kcal/hr.
증발 표면적 증대를 위한 수적 분리기 특성에 관한 연구
모종근,공태우,이광영,정효민,정한식,서정세 경상대학교 해양산업연구소 2002 해양산업연구소보 Vol.15 No.-
The purpose of this research is to obtain the characteristics of water-vapor separator for improving the evaporative surface. The experimental system is constituted with water vapor generator, vapor storage tank, laser source for visualization and camera for photography. The efficiency of water-vapor separator can be varied by the kinds of the inside materials. Thus, in this report, we introduced the three kinds of materials with wire scrap, wire brush and sponge. As the experimental results, the wire brush was showed the best efficiency with 185 g/hr.