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Review of instabilities produced by direct contact condensation of steam injected in water pools and tanks

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Review of instabilities produced by direct contact condensation of steam injected in water pools and tanks

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dc.contributor.author Muñoz-Cobo, J. L. es_ES
dc.contributor.author Blanco, D. es_ES
dc.contributor.author Berna, C. es_ES
dc.contributor.author Córdova, Y. es_ES
dc.date.accessioned 2023-07-06T18:00:10Z
dc.date.available 2023-07-06T18:00:10Z
dc.date.issued 2022-11 es_ES
dc.identifier.issn 0149-1970 es_ES
dc.identifier.uri http://hdl.handle.net/10251/194716
dc.description.abstract [EN] The purpose of this paper is to review and analyze several types of instabilities as condensation oscillations (CO), stable condensation oscillations (SC), and bubbling condensation oscillation (BCO). These instabilities are pro-duced during the discharge of steam into subcooled pools through vents or spargers. The mechanism of direct contact condensation (DCC) plays an essential role in these instabilities justifying that we review first the fundamental basis of DCC and the jet penetration length for the discharges of pure steam in subcooled water. Then, special attention is devoted to developing correlations for the nondimensional penetration length for ellipsoidal or hemi-ellipsoidal prolate steam jets observed in many experiments, to the heat transfer coefficients of DCC and to the best way to correlate the penetration length. Next, it is analyzed the stability of the steam jets with hemi-ellipsoidal shape in the transition and condensation oscillation regimes and it is computed the sub -cooling temperature threshold for low and high oscillation frequencies. These results for the subcooling tem-perature thresholds for low and high frequencies with a hemi-ellipsoidal steam jet are then compared with the results for spherical and cylindrical jets and with the experimental data in an interval of mass fluxes ranging from 0 to 180 kg/m2s. In addition, a sensitivity analysis is performed to know the dependence of the low and high frequency liquid temperature thresholds on the vent diameter and the polytropic coefficient. The third part of the paper is devoted to the study of the instabilities produced in the stable condensation (SC) and the interfacial condensation oscillations (IOC) regions of the map. First Hong et al. model (2012) is extended to include the entrainment in the liquid dominated region (LDR), obtaining new expressions for the oscillations frequency that depend on the entrainment coefficient and the expansion of the jet in the liquid dominated region. Finally, the mechanical energy balance is extended to include the momentum transferred to the jet by the condensate steam, obtaining a new equation for the frequency that is compared with Hong et al.'s data for a set of pool temperatures ranging from 35 degrees C to 90 degrees C and discharge mass steam fluxes ranging from 200 to 900 kg/m2s. es_ES
dc.description.sponsorship One of the authors of this project received a Grisolía scholarship to perform his PhD. The authors of this paper are indebted to Generalitat Valenciana (Spain) by its support under the Grisolía scholarship program. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Progress in Nuclear Energy es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Chugging es_ES
dc.subject Condensation oscillations es_ES
dc.subject Direct contact condensation es_ES
dc.subject Bubbling condensation oscillations es_ES
dc.subject Steam discharge instabilities es_ES
dc.subject.classification ESTADISTICA E INVESTIGACION OPERATIVA es_ES
dc.subject.classification INGENIERIA NUCLEAR es_ES
dc.title Review of instabilities produced by direct contact condensation of steam injected in water pools and tanks es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.pnucene.2022.104404 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GENERALITAT VALENCIANA//GRISOLIAP%2F2018%2F140//AYUDA SANTIAGO GRISOLIA PROYECTO: EXPERIMENTACIÓN Y MODELACIÓN DE DESCARGAS DE MEZCLAS DE VAPOR Y ASES INCONDENSABLES/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Facultad de Administración y Dirección de Empresas - Facultat d'Administració i Direcció d'Empreses es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials es_ES
dc.description.bibliographicCitation Muñoz-Cobo, JL.; Blanco, D.; Berna, C.; Córdova, Y. (2022). Review of instabilities produced by direct contact condensation of steam injected in water pools and tanks. Progress in Nuclear Energy. 153:1-23. https://doi.org/10.1016/j.pnucene.2022.104404 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.pnucene.2022.104404 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 23 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 153 es_ES
dc.relation.pasarela S\472659 es_ES
dc.contributor.funder GENERALITAT VALENCIANA es_ES
dc.contributor.funder Universitat Politècnica de València es_ES


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