Thermal performance of cold plates

This report explores the possibility of combining manifold microchannels together with jet impingement to improve on thermal capabilities of heat sink devices. Both manifold microchannels and jet impingement methods are widely used in the industry because of their practicality and effectiveness in c...

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Main Author: Ang, Shao Wei
Other Authors: Wong Teck Neng
Format: Final Year Project (FYP)
Language:English
Published: Nanyang Technological University 2024
Subjects:
Online Access:https://hdl.handle.net/10356/177396
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author Ang, Shao Wei
author2 Wong Teck Neng
author_facet Wong Teck Neng
Ang, Shao Wei
author_sort Ang, Shao Wei
collection NTU
description This report explores the possibility of combining manifold microchannels together with jet impingement to improve on thermal capabilities of heat sink devices. Both manifold microchannels and jet impingement methods are widely used in the industry because of their practicality and effectiveness in cooling the heat sink. Hence, the author sims to combine both methods together to harness the benefits of both manifold microchannels and jet impingement methods. For this study, a jet impingement system is integrated at the bottom of a manifold microchannel system for the coolant to spray onto the cold plate with pin fins. The material of the cold plate was aluminum alloy AlSi10Mg while the fluid used to cool the cold plate was deionised water. The material of the manifold jet impingement used was polycarbonate. The manifold jet impingement prototype was compared to a baseline with varying heat load and flow rate in the turbulent range. Despite the benefits of both manifold and jet impingement methods, the result does not conclusively support the fact that both methods can be integrated to better enhance both thermal cooling capabilities. The findings reveal that there is a significant pressure drop in the manifold jet impingement due to the sudden decrease in cross-sectional area could affect the Coefficient of Power and Thermal Resistance of the manifold jet impingement system. This provides a direction in which by reducing the pressure drop by means of Reynolds Number or overall design of manifold jet impingement, the integration of both the manifold microchannel and jet impingement methods can ultimately be obtained.
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spelling ntu-10356/1773962024-06-01T16:50:59Z Thermal performance of cold plates Ang, Shao Wei Wong Teck Neng School of Mechanical and Aerospace Engineering Ranjith Kandasamy Priscilla Fok Jia Yuan MTNWONG@ntu.edu.sg Engineering Heat transfer Cold plates Manifold microchannels Jet impingement This report explores the possibility of combining manifold microchannels together with jet impingement to improve on thermal capabilities of heat sink devices. Both manifold microchannels and jet impingement methods are widely used in the industry because of their practicality and effectiveness in cooling the heat sink. Hence, the author sims to combine both methods together to harness the benefits of both manifold microchannels and jet impingement methods. For this study, a jet impingement system is integrated at the bottom of a manifold microchannel system for the coolant to spray onto the cold plate with pin fins. The material of the cold plate was aluminum alloy AlSi10Mg while the fluid used to cool the cold plate was deionised water. The material of the manifold jet impingement used was polycarbonate. The manifold jet impingement prototype was compared to a baseline with varying heat load and flow rate in the turbulent range. Despite the benefits of both manifold and jet impingement methods, the result does not conclusively support the fact that both methods can be integrated to better enhance both thermal cooling capabilities. The findings reveal that there is a significant pressure drop in the manifold jet impingement due to the sudden decrease in cross-sectional area could affect the Coefficient of Power and Thermal Resistance of the manifold jet impingement system. This provides a direction in which by reducing the pressure drop by means of Reynolds Number or overall design of manifold jet impingement, the integration of both the manifold microchannel and jet impingement methods can ultimately be obtained. Bachelor's degree 2024-05-28T04:42:40Z 2024-05-28T04:42:40Z 2024 Final Year Project (FYP) Ang, S. W. (2024). Thermal performance of cold plates. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/177396 https://hdl.handle.net/10356/177396 en B310 application/pdf Nanyang Technological University
spellingShingle Engineering
Heat transfer
Cold plates
Manifold microchannels
Jet impingement
Ang, Shao Wei
Thermal performance of cold plates
title Thermal performance of cold plates
title_full Thermal performance of cold plates
title_fullStr Thermal performance of cold plates
title_full_unstemmed Thermal performance of cold plates
title_short Thermal performance of cold plates
title_sort thermal performance of cold plates
topic Engineering
Heat transfer
Cold plates
Manifold microchannels
Jet impingement
url https://hdl.handle.net/10356/177396
work_keys_str_mv AT angshaowei thermalperformanceofcoldplates