CFD modelling of the non-isobaric evaporation of cryogenic liquids in storage tanks

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dc.article.number122420
dc.catalogadorpva
dc.contributor.authorHuerta, Felipe A.
dc.contributor.authorVesovic, Velisa
dc.date.accessioned2024-01-19T18:21:47Z
dc.date.available2024-01-19T18:21:47Z
dc.date.issued2024
dc.description.abstractA new CFD model relevant to non-isobaric cryogen evaporation has been developed. It considers the heat influx, from the surroundings to the liquid and vapour phases, and the heat transfer between the phases. The phase change is modelled considering two contributions: an interfacial energy balance far from the tank wall, and by direct wall-to-liquid conduction near the wall. The model provides well resolved liquid and vapour temperature and velocity profiles, as well as pressure build-up and evaporation rates. It shows that below the vapour-liquid interface, liquid natural convection is dampened by thermal stratification, which is driven by the increase of the interfacial temperature due to increase in pressure. The pressure build-up is mainly governed by the heating of the vapour, particularly at the beginning of the evaporation. The model was used to analyse liquid velocity profiles for two different sets of experimental data for evaporation of liquid nitrogen by optimizing empirical parameters, namely the wall heat partitioning fraction and the overall heat transfer coefficients. The results show that a large fraction of the vapour heat ingress is not transferred to the vapour phase bulk. Instead, it is transported through the walls and transferred to the liquid at the liquid-vapour-wall contact point, driving phase change. Heat conduction from the walls to the interface has a significant effect, even for low heat fluxes, and cannot be neglected.
dc.fechaingreso.objetodigital2024-09-02
dc.fuente.origenORCID-ene24
dc.identifier.doi10.1016/J.APENERGY.2023.122420
dc.identifier.issn0306-2619
dc.identifier.urihttps://doi.org/10.1016/j.apenergy.2023.122420
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/80790
dc.information.autorucEscuela de Ingeniería; Huerta, Felipe A.; 0000-0003-3263-3059; 194118
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final16
dc.pagina.inicio1
dc.revistaApplied Energy
dc.rightsacceso restringido
dc.subjectEnergy storage
dc.subjectCryogenics
dc.subjectBoil-off gas
dc.subjectCFD
dc.subjectTransport phenomena
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.titleCFD modelling of the non-isobaric evaporation of cryogenic liquids in storage tanks
dc.typeartículo
dc.volumen356
sipa.codpersvinculados194118
sipa.trazabilidadORCID;2024-01-08
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