LAPSE:2023.36402
Published Article
LAPSE:2023.36402
Thermo-Hydraulic Management System Employing Single-Phase Water Flow through Microchannels with Micro-Inserts Added Aiming for Performance Improvement
Shailesh Ranjan Kumar, Satyendra Singh
July 13, 2023
A microchannel heat exchanger effectively evacuates heat from a confined space. This paper attempts to gain insight into the combinatorial repercussions of simultaneously coupling two factors that affect a microchannel’s performance, of which channel size and micro-insert complexity are the two main contributors. With water as the working fluid, an ANSYS-based numerical analysis was carried out for two distinct channel sizes, 1 and 2 mm, both with and without micro-inserts. The Reynolds numbers varied between 125 and 4992 and between 250 and 9985 for the 1 and 2 mm channels, respectively. For the 2 mm diameter channel, adding micro-inserts raised the overall pressure drop with increased Reynolds number. The inclusion of micro-inserts increased the pressure drop in the 1 mm channel at first, and thereafter the pressure drop decreased. Incorporating micro-inserts into the channel resulted in enhanced heat transfer. The trade-off between enhanced heat transfer performance and a larger pressure drop was calculated by evaluating the channel’s overall performance using the thermal performance factor. Micro-inserts were found to be most useful for improving overall performance in the low-to-moderate Reynolds number range, and their effectiveness increased with decreasing channel size. Changing the channel diameter and structure of the design can improve heat transmission through microchannels.
Keywords
friction factor, heat transfer performance, micro-inserts, microchannel, pressure drop, thermal performance factor
Suggested Citation
Kumar SR, Singh S. Thermo-Hydraulic Management System Employing Single-Phase Water Flow through Microchannels with Micro-Inserts Added Aiming for Performance Improvement. (2023). LAPSE:2023.36402
Author Affiliations
Kumar SR: Research Scholar, Department of Mechanical Engineering, Veer Madho Singh Bhandari Uttarakhand Technical University, Dehradun 248007, India; Department of Mechanical Engineering, Motihari College of Engineering, Motihari 845401, Bihar, India
Singh S: Department of Mechanical Engineering, B.T. Kumaon Institute of Technology, Motihari 263653, Uttarakhand, India [ORCID]
Journal Name
Processes
Volume
11
Issue
6
First Page
1858
Year
2023
Publication Date
2023-06-20
ISSN
2227-9717
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Original Submission
Other Meta
PII: pr11061858, Publication Type: Journal Article
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LAPSE:2023.36402
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https://doi.org/10.3390/pr11061858
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Jul 13, 2023
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Jul 13, 2023
 
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Calvin Tsay
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