完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Tran, Ngoctan | en_US |
dc.contributor.author | Chang, Yaw-Jen | en_US |
dc.contributor.author | Wang, Chi-Chuan | en_US |
dc.date.accessioned | 2018-08-21T05:53:04Z | - |
dc.date.available | 2018-08-21T05:53:04Z | - |
dc.date.issued | 2018-02-01 | en_US |
dc.identifier.issn | 0017-9310 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1016/j.ijheatmasstransfer.2017.10.051 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/144226 | - |
dc.description.abstract | In this study, a new multi-nozzle trapezoidal microchannel heat sink (MNT-MCHS) was proposed. Five substrate materials, two nanofluids with nanoparticle volume fractions, 0.1% <= phi <= 1%, and channel hydraulic diameters, 157.7 mu m <= D-h <= 248.2 mu m, were numerically examined in detail. In addition, heat fluxes in the range of 100-1450 W/cm(2) subject to inlet coolant temperature from 15 degrees C to 75 degrees C were examined in detail. A locally optimal MNT-MCHS was defined, and a novel equation was proposed for predicting the maximum temperature on the locally optimal MNT-MCHS depending on the heat flux, coolant inlet temperature, and the Reynolds number. It was found that at a Reynolds number of 900, the overall thermal resistance of a MNT-MCHS using copper as a substrate material is improved up to 76% as compared to that using stainless steel 304. The locally optimal MNT-MCHS, using TiO2-water nanofluid with phi = 1%, could dissipate a heat flux up to 1450 W/cm(2) at a Re of 900. A minimum thermal resistance in the present study is improved up to 11.6% and 36.6% in association with those of a multi nozzle MCHS and a double-layer MCHS, respectively. (C) 2017 Elsevier Ltd. All rights reserved. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Nanofluids | en_US |
dc.subject | Trapezoidal microchannel heat sink | en_US |
dc.subject | Substrate materials | en_US |
dc.subject | High heat flux | en_US |
dc.subject | Hydraulic diameters | en_US |
dc.subject | Novel equation | en_US |
dc.subject | Inlet-coolant temperatures | en_US |
dc.title | Optimization of thermal performance of multi-nozzle trapezoidal microchannel heat sinks by using nanofluids of Al2O3 and TiO2 | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1016/j.ijheatmasstransfer.2017.10.051 | en_US |
dc.identifier.journal | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | en_US |
dc.citation.volume | 117 | en_US |
dc.citation.spage | 787 | en_US |
dc.citation.epage | 798 | en_US |
dc.contributor.department | 機械工程學系 | zh_TW |
dc.contributor.department | Department of Mechanical Engineering | en_US |
dc.identifier.wosnumber | WOS:000417963300070 | en_US |
顯示於類別: | 期刊論文 |