| Title |
A Study on The Heat Transfer Performance of Evaporator Heat Transfer Tube for Absorption Chiller |
| Authors |
권오경(Oh-kyung Kwon) ; 차동안(Dong-an Cha) ; 윤재호(Jae-ho Yun) ; 김효상(Hyo-sang Kim) |
| Keywords |
증발기 ; 열전달 ; 전열관 ; 압력강하 Evaporator ; Heat transfer ; Heat transfer tube ; Pressure drop |
| Abstract |
The objectives of this paper are to measure the heat transfer and pressure drop of the heat transfer tube for an evaporator of absorption system applications. Five types of heat transfer tubes with different shape and heat transfer area are tested in the present experiment. Heat transfer and pressure drop performance of heat transfer tubes are measured in various operating conditions, and compared each other. The results show that the heat transfer coefficient of thermoexcel notch tube increases about 79.6% and 45.3% at the film Reynolds number 69.7 compared with that of bare tube and low fin tube, respectively. The thermoexcel notch tube is show the best performance considering pressure drop and heat transfer coefficient. |