| Title |
Performance Test of Low Temperature Waste Heat Recovery Heat Exchanger Using Self-excited Oscillating Heat Pipe |
| Keywords |
Self-excited oscillating heat pipe ; 자려 진동형 히트 파이프 ; Waste heat recovery ; 폐열 회수 ; Heat exchanger ; 열교환기 ; Thermal resistance ; 열저항 ; Effective thermal conductivity ; 유효 열전도율 ; Effectiveness ; 유용도 |
| Abstract |
In this study, low temperature waste heat recovery heat exchanger was developed using a principle of self-excited oscillating heat pipe. The heat exchanger of serpentine type was composed of extruded flat aluminum tube with 6 channels(3 mm×2.75 mm) and louvered fin. The heat transfer area density of heat exchanger was 331.9 m2/m3. Working fluid is R141b and charge ratio was 40% by volume. Heat transfer rate and the effectiveness of heat exchanger was primary concern of this study. As a result, the effectiveness of heat exchanger was about 0.4-0.67, and recovered waste heat rate was about 4.5 kW per one unit of heat exchanger. |