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증기 구동식 진공 시스템을 이용한 해수 냉각 특성에 관한 실험적 연구
최민식(Min-Sik Choi),金鎭花(Zhen-Hua Jin),신유식(You-Sik Shin),정효민(Hyo-Min Jeong),정한식(Han-Shik Chung),배태열(Tae-Yeol Bae) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
A steam ejector is a device which is used to transport vapor or liquid at low pressure to a higher pressure or to make vacuum as its simplicity and reliability. It is widely used in refrigeration system, power system and food industry etc. This study showed the water cooling system by using a steam ejector to drop water temperature by about 5℃ from 25℃ or higher. In this study, to replace the present water cooling system, we focused on a water cooling system operated by the latent heat of evaporation, thus this system needs a vacuum pressure to evaporate the water in enclosed tank. The water cooling effects are depended on the vacuum pressure in the enclosed tank, and the cooling water is generated by the latent heat of evaporation. As the experimental results, the absolute vacuum pressure was obtained about 8~12㎜Hg by using a steam ejector. The necessary time to reach this vacuum pressure was about 5minutes and the temperature difference of the water were obtained about 5℃.