Abstract

Aluminum/Freon-22 heat pipes were manufactured and tested which have a special wick geometry combining axial groove and screen mesh. There were 14 axial grooves in a cross-section and these were covered by two layers of 350 mesh screens to enhance the thermal performance. The performance test was conducted by varying the thermal load and tilt angle. Furthermore, the operation limits and overall heat transfer coefficient were investigated. The experimental results will be useful in a variety of applications, especially in design and manufacturing of a high-efficiency heat exchanger and energy recovery systems.

Keywords

• Heat pipe;
• Combined wick;
• Groove;
• Screen mesh;
• Performance test;
• Operation limit

• 히트파이프;
• 조합형 윅;
• 그루브;
• 스크린 메쉬;
• 성능시험;
• 작동한계;