The effect of 10µm microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine
A microchannel heat exchanger, which offers various engineering applications, such as heating, ventilation and air-conditioning, is increasingly important due to its advantages in cost reduction for material, fabrication, and physical size. The current nanotechnology impedes the fabrication of mi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universiti Malaysia Pahang Publishing
2018-06-01
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| Series: | Journal of Mechanical Engineering and Sciences |
| Subjects: | |
| Online Access: | https://journal.ump.edu.my/jmes/article/view/7915 |
| _version_ | 1797699257310904320 |
|---|---|
| author | S.M. Chan K.H. Chong Basil T. Wong |
| author_facet | S.M. Chan K.H. Chong Basil T. Wong |
| author_sort | S.M. Chan |
| collection | DOAJ |
| description | A microchannel heat exchanger, which offers various engineering applications, such as
heating, ventilation and air-conditioning, is increasingly important due to its advantages
in cost reduction for material, fabrication, and physical size. The current
nanotechnology impedes the fabrication of microchannel hydraulic diameter at 10 µm
and below; however, with rigorous research on nanotechnology, a smaller hydraulic
diameter relative to the current microchannel is anticipated. This study simulated the
effect of 10 µm transitional microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine, in which the boundary condition
for wall temperature is constant—350 K. Its results show that the Dean vortices
increase with Reynolds number, leading to a heat transfer enhancement in the region of
the serpentine bend. For Reynolds number of 175, the achieved heat transfer coefficient
is 768673.71 kJ/m2K, which is superior to what has been reported in other literature;
therefore, the study suggests that a hydraulic diameter channel of 10 µm could greatly
improve the heat transfer performance. In addition, it infers the suitability of hydraulic
diameter channel of 10 µm for single-phase flow in semi-circular cross-section
serpentine transitional microchannel. |
| first_indexed | 2024-03-12T04:05:23Z |
| format | Article |
| id | doaj.art-2375227cf96a489f82ac1fd78f452751 |
| institution | Directory Open Access Journal |
| issn | 2289-4659 2231-8380 |
| language | English |
| last_indexed | 2024-03-12T04:05:23Z |
| publishDate | 2018-06-01 |
| publisher | Universiti Malaysia Pahang Publishing |
| record_format | Article |
| series | Journal of Mechanical Engineering and Sciences |
| spelling | doaj.art-2375227cf96a489f82ac1fd78f4527512023-09-03T11:18:09ZengUniversiti Malaysia Pahang PublishingJournal of Mechanical Engineering and Sciences2289-46592231-83802018-06-011223724373710.15282/jmes.12.2.2018.17.0329The effect of 10µm microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentineS.M. Chan0K.H. Chong1Basil T. Wong2NoneNoneNoneA microchannel heat exchanger, which offers various engineering applications, such as heating, ventilation and air-conditioning, is increasingly important due to its advantages in cost reduction for material, fabrication, and physical size. The current nanotechnology impedes the fabrication of microchannel hydraulic diameter at 10 µm and below; however, with rigorous research on nanotechnology, a smaller hydraulic diameter relative to the current microchannel is anticipated. This study simulated the effect of 10 µm transitional microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine, in which the boundary condition for wall temperature is constant—350 K. Its results show that the Dean vortices increase with Reynolds number, leading to a heat transfer enhancement in the region of the serpentine bend. For Reynolds number of 175, the achieved heat transfer coefficient is 768673.71 kJ/m2K, which is superior to what has been reported in other literature; therefore, the study suggests that a hydraulic diameter channel of 10 µm could greatly improve the heat transfer performance. In addition, it infers the suitability of hydraulic diameter channel of 10 µm for single-phase flow in semi-circular cross-section serpentine transitional microchannel.https://journal.ump.edu.my/jmes/article/view/7915thermo-hydraulic; single-phase flow; semi-circular; serpentine; microchannel. |
| spellingShingle | S.M. Chan K.H. Chong Basil T. Wong The effect of 10µm microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine Journal of Mechanical Engineering and Sciences thermo-hydraulic; single-phase flow; semi-circular; serpentine; microchannel. |
| title | The effect of 10µm microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine |
| title_full | The effect of 10µm microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine |
| title_fullStr | The effect of 10µm microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine |
| title_full_unstemmed | The effect of 10µm microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine |
| title_short | The effect of 10µm microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine |
| title_sort | effect of 10µm microchannel on thermo hydraulic performance for singlephase flow in semi circular cross section serpentine |
| topic | thermo-hydraulic; single-phase flow; semi-circular; serpentine; microchannel. |
| url | https://journal.ump.edu.my/jmes/article/view/7915 |
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