Please use this identifier to cite or link to this item:
Title: Thermal-hydraulic performance of a tapered microchannel
Authors: Cheng, Kai Xian
Chong, Yi Sheng
Ooi, Kim Tiow
Keywords: Engineering::Mechanical engineering
Issue Date: 2018
Source: Cheng, K. X., Chong, Y. S., & Ooi, K. T. (2018). Thermal-hydraulic performance of a tapered microchannel. International Communications in Heat and Mass Transfer, 94, 53-60. doi:10.1016/j.icheatmasstransfer.2018.03.008
Journal: International Communications in Heat and Mass Transfer
Abstract: Tapered microchannel is a channel configuration design (CCD) which has gained attention owing to the superior performance in promoting uniform temperature distribution in a microchannel. In this study, the thermal-hydraulic performance of four different tapered channels is evaluated against a straight microchannel. The average hydraulic diameter, conductive heat transfer in the substrate material and convective heat transfer area are kept constant for the microchannels. The experiment is conducted for steady-state convective heat transfer using distilled water as the working fluid for Reynolds number range of 1300–3400 and a constant heat flux of 53.0 W/cm2. Results show that highly-tapered microchannels promote early turbulence at lower Reynolds numbers with better heat transfer and much greater pressure drop. All the tapered microchannels possess a thermal-hydraulic performance index which is less than 1, implying that a tapered microchannel yields a lower heat transfer capability given the same pumping power as a straight microchannel.
ISSN: 0735-1933
DOI: 10.1016/j.icheatmasstransfer.2018.03.008
Rights: © 2018 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Journal Articles

Citations 20

Updated on Dec 4, 2022

Web of ScienceTM
Citations 20

Updated on Dec 8, 2022

Page view(s)

Updated on Dec 8, 2022

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.