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Experimental Study of a Pump-Driven Microchannel-Separated Heat Pipe System

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  • Shengpeng Chen

    (College of Emergency Management, Nanjing Tech University, Nanjing 211816, China
    Nanjing Canatal Data-Centre Enviromentol Tech Co., Ltd., Nanjing 211111, China)

  • Peng Xu

    (School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Juan Shi

    (School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Lisha Sheng

    (School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Chaoling Han

    (College of Emergency Management, Nanjing Tech University, Nanjing 211816, China)

  • Zhenqian Chen

    (School of Energy and Environment, Southeast University, Nanjing 210096, China)

Abstract

The current situation of high energy consumption in data centers places high demands on the energy consumption and heat-dissipation efficiency of cooling technology. This article studies the steady-state flow and heat-transfer characteristics of a pump-driven separated heat pipe system from an experimental perspective. After designing and selecting the pump-driven microchannel-separated heat pipe system, an experimental platform is built to test the pump-driven microchannel-separated heat pipe system under variable operating conditions. It is found that the optimal filling rate range of the system is 75% to 95%, and the optimal condensing air volume is 4250 m 3 /h. The relationship between the circulating mass flow rate and the heat-transfer capacity of the heat pipe system is comprehensively influenced by the resistance of each section and the heat-transfer coefficient at the heat exchanger. When the indoor and outdoor temperature difference increases from 10 °C to 30 °C, the heat transfer increases by 261.5%, and the working medium of R410a has a better heat-transfer performance than R134A at outdoor temperatures ranging from 0 to 15 °C. The results contribute to the application of pump-assisted microchannel heat pipe systems in data center machines, which provide guidance for the application of cabinet-level thermal management.

Suggested Citation

  • Shengpeng Chen & Peng Xu & Juan Shi & Lisha Sheng & Chaoling Han & Zhenqian Chen, 2023. "Experimental Study of a Pump-Driven Microchannel-Separated Heat Pipe System," Sustainability, MDPI, vol. 15(24), pages 1-20, December.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:24:p:16839-:d:1300152
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    References listed on IDEAS

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    1. Chen, Xiaoxuan & Wang, Xinyi & Ding, Tao & Li, Zhen, 2023. "Experimental research and energy saving analysis of an integrated data center cooling and waste heat recovery system," Applied Energy, Elsevier, vol. 352(C).
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