Assessment of CHF and Post-CHF Heat Transfer Models for High-Pressure Condition

Supercritical heat transfer systems may undergo trans-critical procedures and work at subcritical conditions during startup, shutdown, or some accidents. However, well-validated heat transfer models for the high-pressure condition (P/Pc>0.7) are still missing. In the present work, with exhaus...

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Main Authors: Meiqi Song, Xiaojing Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-12-01
Series:Frontiers in Energy Research
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fenrg.2021.782086/full
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author Meiqi Song
Xiaojing Liu
author_facet Meiqi Song
Xiaojing Liu
author_sort Meiqi Song
collection DOAJ
description Supercritical heat transfer systems may undergo trans-critical procedures and work at subcritical conditions during startup, shutdown, or some accidents. However, well-validated heat transfer models for the high-pressure condition (P/Pc>0.7) are still missing. In the present work, with exhaustive literature review, extensive experimental databanks of CHF and post-dryout heat transfer under high-pressure condition are established, respectively. Existing prediction models for the high-pressure condition are also summarized from all over the world. Thereby, with the aid of the high-pressure experimental databank, prediction models get evaluated. It has been demonstrated that CHF correlation developed by Song et al. shows good predictive capability. Post-dryout heat transfer could get well predicted by the Song correlation. These recommended prediction models could be implemented to upgrade safety analysis codes for simulation of trans-critical transients.
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spelling doaj.art-3049db1ffbc94438a53c9db5a3303a492022-12-21T23:10:39ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2021-12-01910.3389/fenrg.2021.782086782086Assessment of CHF and Post-CHF Heat Transfer Models for High-Pressure ConditionMeiqi Song0Xiaojing Liu1Institute of Applied Thermofluidics, Karlsruhe Institute of Technology, Karlsruhe, GermanySchool of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, ChinaSupercritical heat transfer systems may undergo trans-critical procedures and work at subcritical conditions during startup, shutdown, or some accidents. However, well-validated heat transfer models for the high-pressure condition (P/Pc>0.7) are still missing. In the present work, with exhaustive literature review, extensive experimental databanks of CHF and post-dryout heat transfer under high-pressure condition are established, respectively. Existing prediction models for the high-pressure condition are also summarized from all over the world. Thereby, with the aid of the high-pressure experimental databank, prediction models get evaluated. It has been demonstrated that CHF correlation developed by Song et al. shows good predictive capability. Post-dryout heat transfer could get well predicted by the Song correlation. These recommended prediction models could be implemented to upgrade safety analysis codes for simulation of trans-critical transients.https://www.frontiersin.org/articles/10.3389/fenrg.2021.782086/fulltrans-critical transienthigh-pressure conditionCHFpost-CHF heat transferSCWR
spellingShingle Meiqi Song
Xiaojing Liu
Assessment of CHF and Post-CHF Heat Transfer Models for High-Pressure Condition
Frontiers in Energy Research
trans-critical transient
high-pressure condition
CHF
post-CHF heat transfer
SCWR
title Assessment of CHF and Post-CHF Heat Transfer Models for High-Pressure Condition
title_full Assessment of CHF and Post-CHF Heat Transfer Models for High-Pressure Condition
title_fullStr Assessment of CHF and Post-CHF Heat Transfer Models for High-Pressure Condition
title_full_unstemmed Assessment of CHF and Post-CHF Heat Transfer Models for High-Pressure Condition
title_short Assessment of CHF and Post-CHF Heat Transfer Models for High-Pressure Condition
title_sort assessment of chf and post chf heat transfer models for high pressure condition
topic trans-critical transient
high-pressure condition
CHF
post-CHF heat transfer
SCWR
url https://www.frontiersin.org/articles/10.3389/fenrg.2021.782086/full
work_keys_str_mv AT meiqisong assessmentofchfandpostchfheattransfermodelsforhighpressurecondition
AT xiaojingliu assessmentofchfandpostchfheattransfermodelsforhighpressurecondition