SET Proceedings 2978-4387 Caravel Press 10.65582/set.2005.118 2005.118 Experimental Study on the Pressure Drop and Water Cooling Characteristics by Steam Driven Ejector and Jet Condenser ShinYou Sik LeeYoun Hwan JeongHyo Min ChungHan Shik ChunYoung Heung KimSun Jung Graduate School, Dept. of Mechanical and Precision Engineering, Gyeongsang National University, Tongyeong, KOREA School of Mechanical and Aerospace Engineering, Gyeongsang National University, Tongyeong, KOREA Department of Building Services Engineering, Hanbat National University, Daejeon, KOREA 23092005 4 1 978-7-112-07718-2 532 537 23 September 2005 © 2005 Copyright WSSET 2005

This study performed of a water cooling system by using a steam ejector and jet condenser to drop the temperature of the water in aquafarm by about 5°C from 25°C or higher. In this research, to replace the present water cooling system, we focused on a water cooling system operated by latent heat of evaporation, thus this system needs a vacuum pressure to evaporate the water in enclosed tank. The water cooling effects are dependent on the vacuum pressure in the enclosed tank, and the cooling water is generated by evaporation. As the experimental results, the absolute vacuum pressure obtained was about 5~8mmHg using a steam driven ejector with jet condenser in experiments from Type 1 to Type12. The temperature difference of the water is about 5°C from Figure 8, 10, 12. Figure 13, 15 and 17 is the graphs of temperature difference of heat exchanger. The obtained results are respectively ΔT=7°C, ΔT=5°C and ΔT=5.5°C. Figure 19, 21 and 23 is the graphs of temperature difference of heat exchanger. The obtained results are respectively ΔT=5.5°C, ΔT=5.5°C and ΔT=5.5°C.

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