一种用于数据中心冷却的空气换热器的设计与模拟

Translated title of the contribution: Design and Numerical Simulation of an Air Handling Unit Heat Exchanger for Data Center Cooling

Bin Liu, Shijiang Geng, Zixing Wang, Wenquan Tao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This study proposed a heat exchanger plate design scheme for an air handling unit used in a data center. In this study, the thin plate design idea was introduced step by step, and the flow and heat transfer performance were investigated using a numerical model. Circular estrade dimple and rod-shaped dimple arrays with different concave and convex directions were applied to the plates to enhance heat transfer. The numerical results show that the improved plates have a better heat transfer enhancement effect at larger Reynolds numbers (Re). When the Re is 15 091, compared with the baseline plate, the improved plate 3 enhances the heat transfer by 37% at the same pumping power, while the improved plate 3 enhances the heat transfer by 20% at Re of 5 000. It is found that the axial direction and the transverse directions of the rod-shaped dimple array have a significant influence on the enhancement of heat transfer. When the Re is 15 091, compared with the improved plate 1, the improved plate 3 enhances the heat transfer by more than 11% at the same pumping power, by adjusting the arrangement of the rod-shaped dimple array.

Translated title of the contributionDesign and Numerical Simulation of an Air Handling Unit Heat Exchanger for Data Center Cooling
Original languageChinese (Traditional)
Pages (from-to)150-157
Number of pages8
JournalJournal of Refrigeration
Volume44
Issue number3
DOIs
Publication statusPublished - Jun 2023
Externally publishedYes

Keywords

  • data center
  • dimple structure
  • heat transfer enhancement
  • numerical simulation

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