DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | No, Hee-Cheon | - |
dc.contributor.advisor | 노희천 | - |
dc.contributor.author | Song, Sung-Chu | - |
dc.contributor.author | 송성주 | - |
dc.date.accessioned | 2011-12-14T08:17:31Z | - |
dc.date.available | 2011-12-14T08:17:31Z | - |
dc.date.issued | 2006 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=255376&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/49511 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 원자력및양자공학과, 2006.2, [ ix, 64 p. ] | - |
dc.description.abstract | Experiments and computational analysis are done to investigate thermal hydraulic performance of a PCHE (Printed Circuit Heat Exchanger) for IHX (Intermediate Heat Exchanger) of HTGR (High Temperature Gas cooled Reactor). After a PCHE is installed in a test loop, thermal hydraulic performance of a PCHE is conducted experimentally in an air test loop. We use the PCHE with the wavy channels of the cross-section of a semicircle whose length and hydraulic diameter are 765 mm and 0.922 mm, respectively, the mass flow rates of air range 80 - 250 kg/h and the maximum inlet temperatures are 350 ℃ and 200 ℃ at hot and cold sides, respectively. The range of the average Reynolds numbers in the PCHE is about 800 -3500. The friction factors were obtained in the present experiment. The friction factors in the wavy channels are by about 50% larger than that of the straight pipe while they are by more than 100% lower than the results from Hesselgreaves’ correlation. The pressure drop predicted by FLUENT agrees with that of the experimental data within 12.6 %. The data of thermal performance is analyzed to obtain overall heat transfer coefficient. The overall heat transfer coefficient ranges about 106~280 W/㎡K$ in the laminar region. The overall heat transfer coefficient increases linearly as the Reynolds number does. It turns out that the effectiveness of the PCHE is about 95 %. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | effectiveness | - |
dc.subject | overall heat transfer coefficient | - |
dc.subject | friction factor | - |
dc.subject | PCHE | - |
dc.subject | wavy channel | - |
dc.subject | 웨이비채널 | - |
dc.subject | 효율 | - |
dc.subject | 총합열전달계수 | - |
dc.subject | 마찰계수 | - |
dc.subject | 인쇄형 열교환기 | - |
dc.title | Thermal-hydraulic performance of a printed circuit heat exchanger in an air test loop | - |
dc.title.alternative | 공기를 이용한 개방형계에서의 인쇄형 열교환기의 열수력학적 실험 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 255376/325007 | - |
dc.description.department | 한국과학기술원 : 원자력및양자공학과, | - |
dc.identifier.uid | 020033338 | - |
dc.contributor.localauthor | Song, Sung-Chu | - |
dc.contributor.localauthor | 송성주 | - |
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