Thermal-Hydraulic performance in a microchannel heat sink equipped with longitudinal vortex generators (LVGs) and nanofluid
In this study, the numerical conjugate heat transfer and hydraulic performance of nanofluids flow in a rectangular microchannel heat sink (RMCHS) with longitudinal vortex generators (LVGs) was investigated at different Reynolds numbers (200-1200). Three-dimensional simulations are performed on a mic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020
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| Online Access: | http://eprints.utm.my/86761/1/MazlanAbdulWahid2020_Thermal-HydraulicPerformanceinaMicrochannelHeatSink.pdf |
| _version_ | 1796864307557826560 |
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| author | Al Muallim, Basel Wahid, M. A. Mohammed, H. Kamil, M. Habibi, D. |
| author_facet | Al Muallim, Basel Wahid, M. A. Mohammed, H. Kamil, M. Habibi, D. |
| author_sort | Al Muallim, Basel |
| collection | ePrints |
| description | In this study, the numerical conjugate heat transfer and hydraulic performance of nanofluids flow in a rectangular microchannel heat sink (RMCHS) with longitudinal vortex generators (LVGs) was investigated at different Reynolds numbers (200-1200). Three-dimensional simulations are performed on a microchannel heated by a constant temperature with five different configurations with different angles of attack for the LVGs under laminar flow conditions. The study uses five different nanofluid combinations of Al2O3 or CuO, containing low volume fractions in the range of 0.5% to 3.0% with various nanoparticle sizes that are dispersed in pure water, PAO (Polyalphaolefin) or ethylene glycol. The results show that for Reynolds number ranging from 100 to 1100, Al2O3-water has the best performance compared with CuO nanofluid with Nusselt number values between 7.67 and 14.7, with an associated increase in Fanning friction factor by values of 0.0219-0.095. For the case of different base fluids, the results show that CuO-PAO has the best performance with Nusselt number values between 9.57 and 15.88, with an associated increase in Fanning friction factor by 0.022-0.096. The overall performance of all configurations of microchannels equipped with LVGs and nanofluid showed higher values than the ones without LVG and water as a working fluid. |
| first_indexed | 2024-03-05T20:39:54Z |
| format | Article |
| id | utm.eprints-86761 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T20:39:54Z |
| publishDate | 2020 |
| publisher | MDPI AG |
| record_format | dspace |
| spelling | utm.eprints-867612020-09-30T09:05:30Z http://eprints.utm.my/86761/ Thermal-Hydraulic performance in a microchannel heat sink equipped with longitudinal vortex generators (LVGs) and nanofluid Al Muallim, Basel Wahid, M. A. Mohammed, H. Kamil, M. Habibi, D. TJ Mechanical engineering and machinery In this study, the numerical conjugate heat transfer and hydraulic performance of nanofluids flow in a rectangular microchannel heat sink (RMCHS) with longitudinal vortex generators (LVGs) was investigated at different Reynolds numbers (200-1200). Three-dimensional simulations are performed on a microchannel heated by a constant temperature with five different configurations with different angles of attack for the LVGs under laminar flow conditions. The study uses five different nanofluid combinations of Al2O3 or CuO, containing low volume fractions in the range of 0.5% to 3.0% with various nanoparticle sizes that are dispersed in pure water, PAO (Polyalphaolefin) or ethylene glycol. The results show that for Reynolds number ranging from 100 to 1100, Al2O3-water has the best performance compared with CuO nanofluid with Nusselt number values between 7.67 and 14.7, with an associated increase in Fanning friction factor by values of 0.0219-0.095. For the case of different base fluids, the results show that CuO-PAO has the best performance with Nusselt number values between 9.57 and 15.88, with an associated increase in Fanning friction factor by 0.022-0.096. The overall performance of all configurations of microchannels equipped with LVGs and nanofluid showed higher values than the ones without LVG and water as a working fluid. MDPI AG 2020-02 Article PeerReviewed application/pdf en http://eprints.utm.my/86761/1/MazlanAbdulWahid2020_Thermal-HydraulicPerformanceinaMicrochannelHeatSink.pdf Al Muallim, Basel and Wahid, M. A. and Mohammed, H. and Kamil, M. and Habibi, D. (2020) Thermal-Hydraulic performance in a microchannel heat sink equipped with longitudinal vortex generators (LVGs) and nanofluid. Processes, 8 (2). p. 231. ISSN 2227-9717 http://dx.doi.org/10.3390/pr8020231 |
| spellingShingle | TJ Mechanical engineering and machinery Al Muallim, Basel Wahid, M. A. Mohammed, H. Kamil, M. Habibi, D. Thermal-Hydraulic performance in a microchannel heat sink equipped with longitudinal vortex generators (LVGs) and nanofluid |
| title | Thermal-Hydraulic performance in a microchannel heat sink equipped with longitudinal vortex generators (LVGs) and nanofluid |
| title_full | Thermal-Hydraulic performance in a microchannel heat sink equipped with longitudinal vortex generators (LVGs) and nanofluid |
| title_fullStr | Thermal-Hydraulic performance in a microchannel heat sink equipped with longitudinal vortex generators (LVGs) and nanofluid |
| title_full_unstemmed | Thermal-Hydraulic performance in a microchannel heat sink equipped with longitudinal vortex generators (LVGs) and nanofluid |
| title_short | Thermal-Hydraulic performance in a microchannel heat sink equipped with longitudinal vortex generators (LVGs) and nanofluid |
| title_sort | thermal hydraulic performance in a microchannel heat sink equipped with longitudinal vortex generators lvgs and nanofluid |
| topic | TJ Mechanical engineering and machinery |
| url | http://eprints.utm.my/86761/1/MazlanAbdulWahid2020_Thermal-HydraulicPerformanceinaMicrochannelHeatSink.pdf |
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