Session Track
November 01 (Wednesday)
열 및 물질전달(I)
Oral,
제3발표장(202A호),
13:30~14:30
- 이영림(공주대)
We03A-2
13:30~14:30
방사광 X-선 영상법을 활용한 구조표면에서의 모세관유도흐름과 임계열유속에 대한 가시화 연구
Over the past several decades, phenomena related to critical heat flux (CHF) on structured surfaces have received a large amount of attention from the research community. The purpose of such research has been to enhance the safety and efficiency of a variety of thermal systems. A number of theories have been put forward to explain the key CHF enhancement mechanisms on structured surfaces. However, these theories have not been confirmed experimentally due to limitations in the available visualization techniques and the complexity of the phenomena. To overcome the limitations of the previous visualization techniques and elucidate the CHF enhancement mechanism on the structured surfaces, we introduce synchrotron X-ray imaging with high spatial (~2 um) and time (~20000 Hz) resolutions. This technique has enabled us to confirm that capillary-induced flow is the key CHF enhancement mechanism on structured surfaces.
Keywords : Boiling(비등), Micro(마이크로), Capillary-induced flow(모세관유도흐름), Critical heat flux(임계열유속), Synchrotron X-ray imaging(방사광 X-선 가시화)
Paper : We03A-2.pdf
(사)대한기계학회, 서울시 강남구 테헤란로 7길 22 한국과학기술회관 신관 702호, Tel: (02)501-3646~3648, E-mail: ksme@ksme.or.kr