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

Shengpeng Chen, Peng Xu, Juan Shi, Lisha Sheng, Chaoling Han () and Zhenqian Chen ()
Additional contact information
Shengpeng Chen: College of Emergency Management, Nanjing Tech University, Nanjing 211816, 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

Sustainability, 2023, vol. 15, issue 24, 1-20

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.

Keywords: pump drive; separated heat pipe; filling rate; microchannel; working medium (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/24/16839/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/24/16839/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:24:p:16839-:d:1300152

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().