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평판형 증발부를 갖는 루프히트파이프의 역구배 성능에 대한 실험적 연구
임경택(Kyung Taek Im),배장현(Jang Hyun Bae),조영탁(Young Tak Cho),최윤덕(Yun Deok Choi),부준홍(Joon Hong Boo) 대한기계학회 2019 대한기계학회 춘추학술대회 Vol.2019 No.11
The performance at the adverse tilt of a loop heat pipe(LHP) with a flat square evaporator was experimentally investigated. The LHP was made of stainless steel and methanol was used as working fluid. The maximum heat load was 300 W(heat flux of 19 W/㎠) and its heating area was 40 ㎜ × 40 ㎜. The coolant inlet temperature at the condenser was maintained at 10℃. The LHP operated successfully at the adverse tilt angle of 90˚ for the heat load range of 38 W to 240 W. A cold start-up was demonstrated for a step heat input of 183 W. Sintered nickel was used as a capillary structure in the evaporator. The lowest thermal resistance was 0.186℃/W.