Experimental Study on the Dynamic Heat Transfer Characteristics of a Mechanically Pumped Two-phase Cooling Loop

The present research designs a mechanically pumped cooling loop system and conducts an experimental investigation on the dynamic heat transfer characteristics of the system. The effects of the start-up heat load and heat load variation on the dynamic characteristics of the system are analyzed. The r...

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Main Authors: Lei Li, Jianyun Tao, Wei Gao
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-06-01
Series:Frontiers in Energy Research
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fenrg.2021.701805/full
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author Lei Li
Jianyun Tao
Wei Gao
author_facet Lei Li
Jianyun Tao
Wei Gao
author_sort Lei Li
collection DOAJ
description The present research designs a mechanically pumped cooling loop system and conducts an experimental investigation on the dynamic heat transfer characteristics of the system. The effects of the start-up heat load and heat load variation on the dynamic characteristics of the system are analyzed. The results indicate that during the start-up period, as the heat load rises, the temperature overshoot and duration time of adjustment decrease, while the pressure oscillation amplitude increases. During the regular operation period, as the heat load increases, the temperature at the evaporator outlet gradually increases until it approaches the saturation temperature and then remains constant. The pressure evolution at the evaporator outlet can be divided into four stages: steady state, drastic oscillation, damped oscillation, and slight oscillation.
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spelling doaj.art-c1f72ec576024074bcb8c5b89c1df0442022-12-21T22:36:38ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2021-06-01910.3389/fenrg.2021.701805701805Experimental Study on the Dynamic Heat Transfer Characteristics of a Mechanically Pumped Two-phase Cooling LoopLei LiJianyun TaoWei GaoThe present research designs a mechanically pumped cooling loop system and conducts an experimental investigation on the dynamic heat transfer characteristics of the system. The effects of the start-up heat load and heat load variation on the dynamic characteristics of the system are analyzed. The results indicate that during the start-up period, as the heat load rises, the temperature overshoot and duration time of adjustment decrease, while the pressure oscillation amplitude increases. During the regular operation period, as the heat load increases, the temperature at the evaporator outlet gradually increases until it approaches the saturation temperature and then remains constant. The pressure evolution at the evaporator outlet can be divided into four stages: steady state, drastic oscillation, damped oscillation, and slight oscillation.https://www.frontiersin.org/articles/10.3389/fenrg.2021.701805/fulltwo-phase coolingheat transfer characteristicstemperature overshootadjustment timepressure oscillation
spellingShingle Lei Li
Jianyun Tao
Wei Gao
Experimental Study on the Dynamic Heat Transfer Characteristics of a Mechanically Pumped Two-phase Cooling Loop
Frontiers in Energy Research
two-phase cooling
heat transfer characteristics
temperature overshoot
adjustment time
pressure oscillation
title Experimental Study on the Dynamic Heat Transfer Characteristics of a Mechanically Pumped Two-phase Cooling Loop
title_full Experimental Study on the Dynamic Heat Transfer Characteristics of a Mechanically Pumped Two-phase Cooling Loop
title_fullStr Experimental Study on the Dynamic Heat Transfer Characteristics of a Mechanically Pumped Two-phase Cooling Loop
title_full_unstemmed Experimental Study on the Dynamic Heat Transfer Characteristics of a Mechanically Pumped Two-phase Cooling Loop
title_short Experimental Study on the Dynamic Heat Transfer Characteristics of a Mechanically Pumped Two-phase Cooling Loop
title_sort experimental study on the dynamic heat transfer characteristics of a mechanically pumped two phase cooling loop
topic two-phase cooling
heat transfer characteristics
temperature overshoot
adjustment time
pressure oscillation
url https://www.frontiersin.org/articles/10.3389/fenrg.2021.701805/full
work_keys_str_mv AT leili experimentalstudyonthedynamicheattransfercharacteristicsofamechanicallypumpedtwophasecoolingloop
AT jianyuntao experimentalstudyonthedynamicheattransfercharacteristicsofamechanicallypumpedtwophasecoolingloop
AT weigao experimentalstudyonthedynamicheattransfercharacteristicsofamechanicallypumpedtwophasecoolingloop