Influence of the Refrigerant Charge on the Heat Transfer Performance for a Closed-Loop Spray Cooling System

With the rapid increase of heat flux and demand for miniaturization of electronic equipment, the traditional heat conduction and convective heat transfer methods could not meet the needs. Therefore, the spray cooling experiment was carried out to obtain the basic heat transfer and cooling process. I...

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Autores principales:	Nianyong Zhou, Hao Feng, Yixing Guo, Wenbo Liu, Haoping Peng, Yun Lei, Song Deng, Yu Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	spray cooling refrigerant charge surface temperature drop point heat transfer performance Technology T
Acceso en línea:	https://doaj.org/article/87f08f48c6024a73b84fb78034ccbc37
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spelling	oai:doaj.org-article:87f08f48c6024a73b84fb78034ccbc372021-11-25T17:26:57ZInfluence of the Refrigerant Charge on the Heat Transfer Performance for a Closed-Loop Spray Cooling System10.3390/en142275881996-1073https://doaj.org/article/87f08f48c6024a73b84fb78034ccbc372021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7588https://doaj.org/toc/1996-1073With the rapid increase of heat flux and demand for miniaturization of electronic equipment, the traditional heat conduction and convective heat transfer methods could not meet the needs. Therefore, the spray cooling experiment was carried out to obtain the basic heat transfer and cooling process. In this experiment, the spray cooling system was set up to investigate the influence of refrigerant charge on heat transfer performance in steady-state, dynamic heating, and dissipating processes. In a steady-state, the heat transfer coefficient increased with the rise of the refrigerant charge. In the dynamic dissipating process, both heat flux and heat transfer coefficient decreased rapidly after the critical heat flux, and the surface temperature drop point of each refrigerant charge was presented. The optimum refrigerant charge was provided considering the cooling parameters and the system operating performance. When the refrigerant operating pressure was 0.5 MPa, the spray cooling process presented with the higher heat flux, heat transfer coefficient, and cooling efficiency in this experiment. Meanwhile, the suitable surface temperature drop point and more gentle heat flux curves in the nucleate boiling region were obtained. The research results will contribute to the spray cooling system design, which should be operated before departure from the nucleate boiling point for avoiding cooling failure.Nianyong ZhouHao FengYixing GuoWenbo LiuHaoping PengYun LeiSong DengYu WangMDPI AGarticlespray coolingrefrigerant chargesurface temperature drop pointheat transfer performanceTechnologyTENEnergies, Vol 14, Iss 7588, p 7588 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	spray cooling refrigerant charge surface temperature drop point heat transfer performance Technology T
spellingShingle	spray cooling refrigerant charge surface temperature drop point heat transfer performance Technology T Nianyong Zhou Hao Feng Yixing Guo Wenbo Liu Haoping Peng Yun Lei Song Deng Yu Wang Influence of the Refrigerant Charge on the Heat Transfer Performance for a Closed-Loop Spray Cooling System
description	With the rapid increase of heat flux and demand for miniaturization of electronic equipment, the traditional heat conduction and convective heat transfer methods could not meet the needs. Therefore, the spray cooling experiment was carried out to obtain the basic heat transfer and cooling process. In this experiment, the spray cooling system was set up to investigate the influence of refrigerant charge on heat transfer performance in steady-state, dynamic heating, and dissipating processes. In a steady-state, the heat transfer coefficient increased with the rise of the refrigerant charge. In the dynamic dissipating process, both heat flux and heat transfer coefficient decreased rapidly after the critical heat flux, and the surface temperature drop point of each refrigerant charge was presented. The optimum refrigerant charge was provided considering the cooling parameters and the system operating performance. When the refrigerant operating pressure was 0.5 MPa, the spray cooling process presented with the higher heat flux, heat transfer coefficient, and cooling efficiency in this experiment. Meanwhile, the suitable surface temperature drop point and more gentle heat flux curves in the nucleate boiling region were obtained. The research results will contribute to the spray cooling system design, which should be operated before departure from the nucleate boiling point for avoiding cooling failure.
format	article
author	Nianyong Zhou Hao Feng Yixing Guo Wenbo Liu Haoping Peng Yun Lei Song Deng Yu Wang
author_facet	Nianyong Zhou Hao Feng Yixing Guo Wenbo Liu Haoping Peng Yun Lei Song Deng Yu Wang
author_sort	Nianyong Zhou
title	Influence of the Refrigerant Charge on the Heat Transfer Performance for a Closed-Loop Spray Cooling System
title_short	Influence of the Refrigerant Charge on the Heat Transfer Performance for a Closed-Loop Spray Cooling System
title_full	Influence of the Refrigerant Charge on the Heat Transfer Performance for a Closed-Loop Spray Cooling System
title_fullStr	Influence of the Refrigerant Charge on the Heat Transfer Performance for a Closed-Loop Spray Cooling System
title_full_unstemmed	Influence of the Refrigerant Charge on the Heat Transfer Performance for a Closed-Loop Spray Cooling System
title_sort	influence of the refrigerant charge on the heat transfer performance for a closed-loop spray cooling system
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/87f08f48c6024a73b84fb78034ccbc37
work_keys_str_mv	AT nianyongzhou influenceoftherefrigerantchargeontheheattransferperformanceforaclosedloopspraycoolingsystem AT haofeng influenceoftherefrigerantchargeontheheattransferperformanceforaclosedloopspraycoolingsystem AT yixingguo influenceoftherefrigerantchargeontheheattransferperformanceforaclosedloopspraycoolingsystem AT wenboliu influenceoftherefrigerantchargeontheheattransferperformanceforaclosedloopspraycoolingsystem AT haopingpeng influenceoftherefrigerantchargeontheheattransferperformanceforaclosedloopspraycoolingsystem AT yunlei influenceoftherefrigerantchargeontheheattransferperformanceforaclosedloopspraycoolingsystem AT songdeng influenceoftherefrigerantchargeontheheattransferperformanceforaclosedloopspraycoolingsystem AT yuwang influenceoftherefrigerantchargeontheheattransferperformanceforaclosedloopspraycoolingsystem
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Influence of the Refrigerant Charge on the Heat Transfer Performance for a Closed-Loop Spray Cooling System

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