Experimental study on the effect of the condenser section length on the thermal performance of PHPs응축부의 길이가 진동형 히트 파이프의 열성능에 미치는 영향에 관한 실험적 연구

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dc.contributor.advisorKim, Sung Jin-
dc.contributor.advisor김성진-
dc.contributor.authorKim, Juno-
dc.contributor.author김주노-
dc.date.accessioned2017-03-28T07:19:15Z-
dc.date.available2017-03-28T07:19:15Z-
dc.date.issued2016-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=649224&flag=dissertationen_US
dc.identifier.urihttp://hdl.handle.net/10203/221225-
dc.description학위논문(석사) - 한국과학기술원 : 기계공학과, 2016.2 ,[vi, 44 p. :]-
dc.description.abstractIn the present study, the effect of the condenser section length on the thermal perfor-mance of PHPs was investigated experimentally under the constraint of fixed evaporator section and total lengths. Using MEMS techniques, silicon-based PHPs with 10 turns and hydraulic diameter of 667μm were fabricated to evaluate the thermal performance of sili-con-based PHPs. The evaporator section and the total lengths were fixed at 20 mm and 100 mm, respectively. The thermal resistance was evaluated from temperature measurement while flow visualization was conducted using high speed camera with different condenser section lengths. The optimum condenser section length, for which the temperature of evapo-rator section was the lowest, was found to be 10mm experimentally. When the condenser section length became smaller than the optimum length, the temperature of the evaporator section increased because the heat transfer area of the condenser section decreased. When the condenser section length became larger than the optimum length, the stopover phenom-enon was observed through flow visualization. The stopover phenomenon affected the for-mation of the liquid film in evaporator section and adiabatic section of PHPs. The variations in temperature of the evaporator section with time was less significant as the condenser sec-tion length decreased due to continuous liquid film supply.-
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjectsilicon-based PHPs-
dc.subjectthermal resistance-
dc.subjectcondenser section length-
dc.subjectflow visualization-
dc.subjectliquid film-
dc.subjectstopover phenomenon-
dc.subjectpartially dryout-
dc.subject실리콘 기반 진동형 히트파이프-
dc.subject열저항-
dc.subject응축부 길이-
dc.subject유동 가시화-
dc.subject액막-
dc.subject스탑오버 현상-
dc.subject부분 드라이아웃-
dc.titleExperimental study on the effect of the condenser section length on the thermal performance of PHPs-
dc.title.alternative응축부의 길이가 진동형 히트 파이프의 열성능에 미치는 영향에 관한 실험적 연구-
dc.typeThesis(Master)-
dc.identifier.CNRN325007-
dc.description.department한국과학기술원 :기계공학과,-
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ME-Theses_Master(석사논문)
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