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STUDY ON HEAT TRANSFER CHARACTERISTICS OF Z-TYPE PARALLEL MULTI-BRANCH PIPE GROUP.

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Title: STUDY ON HEAT TRANSFER CHARACTERISTICS OF Z-TYPE PARALLEL MULTI-BRANCH PIPE GROUP.
Authors: XU, Yue1, LI, Qipeng1, WANG, Yu1 yu-wang@njtech.edu.cn, TANG, Wenhui2, DAWAR, Asfandyar Khan1, KOSONEN, Risto3, ZHANG, Yingying1, ZHOU, Nianyong4
Source: Thermal Science. 2025, Vol. 29 Issue 4B, p2547-2559. 13p.
Subjects: Flow coefficient, Heat pipes, Heat transfer, Temperature distribution, Pipe flow
Abstract: The Z-type parallel multi-branch pipe groups are widely utilized to deliver fluid in cooling high-power electronic equipment. The CFD software is commonly used to perform numerical simulations of these systems. This study examines the effects of varying inlet flow rates, branch pipe diameters, and main pipe diameters on flow characteristics and heat transfer. The flow deviation coefficient and temperature distribution were used to assess the flow uniformity in branch pipes and the heat transfer efficiency of cold plates. The findings reveal that increasing the inlet flow rate enhances flow inhomogeneity but decreases the overall temperature of the cold plate. Similarly, increasing the branch pipe diameter strengthens flow inhomogeneity without significantly affecting the cold plate's temperature distribution. Conversely, increasing the main pipe diameter exacerbates the uneven flow distribution and results in more local hot spots on the cold plate. Based on these simulation results, an optimized design for Z-type parallel multi-branch pipe systems can be developed to improve flow uniformity and heat transfer efficiency [ABSTRACT FROM AUTHOR]
Copyright of Thermal Science is the property of Society of Thermal Engineers of Serbia and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: STUDY ON HEAT TRANSFER CHARACTERISTICS OF Z-TYPE PARALLEL MULTI-BRANCH PIPE GROUP.
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  Data: <searchLink fieldCode="AR" term="%22XU%2C+Yue%22">XU, Yue</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22LI%2C+Qipeng%22">LI, Qipeng</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22WANG%2C+Yu%22">WANG, Yu</searchLink><relatesTo>1</relatesTo><i> yu-wang@njtech.edu.cn</i><br /><searchLink fieldCode="AR" term="%22TANG%2C+Wenhui%22">TANG, Wenhui</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22DAWAR%2C+Asfandyar+Khan%22">DAWAR, Asfandyar Khan</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22KOSONEN%2C+Risto%22">KOSONEN, Risto</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22ZHANG%2C+Yingying%22">ZHANG, Yingying</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22ZHOU%2C+Nianyong%22">ZHOU, Nianyong</searchLink><relatesTo>4</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Thermal+Science%22">Thermal Science</searchLink>. 2025, Vol. 29 Issue 4B, p2547-2559. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Flow+coefficient%22">Flow coefficient</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+pipes%22">Heat pipes</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+transfer%22">Heat transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+distribution%22">Temperature distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Pipe+flow%22">Pipe flow</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The Z-type parallel multi-branch pipe groups are widely utilized to deliver fluid in cooling high-power electronic equipment. The CFD software is commonly used to perform numerical simulations of these systems. This study examines the effects of varying inlet flow rates, branch pipe diameters, and main pipe diameters on flow characteristics and heat transfer. The flow deviation coefficient and temperature distribution were used to assess the flow uniformity in branch pipes and the heat transfer efficiency of cold plates. The findings reveal that increasing the inlet flow rate enhances flow inhomogeneity but decreases the overall temperature of the cold plate. Similarly, increasing the branch pipe diameter strengthens flow inhomogeneity without significantly affecting the cold plate's temperature distribution. Conversely, increasing the main pipe diameter exacerbates the uneven flow distribution and results in more local hot spots on the cold plate. Based on these simulation results, an optimized design for Z-type parallel multi-branch pipe systems can be developed to improve flow uniformity and heat transfer efficiency [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Thermal Science is the property of Society of Thermal Engineers of Serbia and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.2298/TSCI240910269X
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      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 2547
    Subjects:
      – SubjectFull: Flow coefficient
        Type: general
      – SubjectFull: Heat pipes
        Type: general
      – SubjectFull: Heat transfer
        Type: general
      – SubjectFull: Temperature distribution
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      – SubjectFull: Pipe flow
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              Text: 2025
              Type: published
              Y: 2025
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