Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation

Autores
Sansiñena, Marina Julia; Santos, María Victoria; Zaritzky, Noemí; Chirife, Jorge
Año de publicación
2011
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Sansiñena, Marina Julia. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; Argentina
Fil: Santos, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Santos, María Victoria. Universidad Nacional de La Plata. Facultad de Ingeniería. Depto. de Ingeniería Química; Argentina
Fil: Zaritzky, Noemí. Universidad Nacional de La Plata. Facultad de Ingeniería. Depto. de Ingeniería Química; Argentina
Fil: Zaritzky, Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Chirife, Jorge. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; Argentina
Abstract: Slush nitrogen (SN2) is a mixture of solid nitrogen and liquid nitrogen coexisting under an average temperature of -207ºC. In order to investigate whether plunging a French plastic straw (commonly used for spermatozoa cryopreservation) in SN2 may substantially increase cooling rates with respect to liquid nitrogen (LN2), a numerical simulation of the heat conduction equation with convective boundary condition was used to predict the cooling rates. Calculations performed using heat transfer coefficients in the range of film boiling confirmed the main benefit of plunging a straw in slush over LN2 does not arise from their temperature difference (-207ºC vs. -196ºC) but from an increase in the external heat transfer coefficient. Numerical simulations using high heat transfer (h) coefficients (assumed to prevail in SN2) suggested that plunging in SN2 would increase cooling rates of French straw. This increase of cooling rates was attributed to a less or null film boiling responsible for the low heat transfer coefficients in liquid nitrogen when the straw is placed in the solidliquid mixture or slush. In addition, it was demonstrated that predicted cooling rates of French straws in SN2 tends to level-off for high h values, suggesting heat transfer is dictated by the heat conduction within the liquid filled plastic straw
Materia
REFRIGERACION
NITROGENO LIQUIDO
TRANSFERENCIA DE CALOR
SIMULACION
CONSERVACION
ESPERMATOZOIDES
REPRODUCCION ANIMAL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Repositorio Institucional (UCA)
Institución
Pontificia Universidad Católica Argentina
OAI Identificador
oai:ucacris:123456789/5456
Acceder
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oai_identifier_str oai:ucacris:123456789/5456
network_acronym_str RIUCA
repository_id_str 2585
network_name_str Repositorio Institucional (UCA)
spelling Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservationSansiñena, Marina JuliaSantos, María VictoriaZaritzky, NoemíChirife, JorgeREFRIGERACIONNITROGENO LIQUIDOTRANSFERENCIA DE CALORSIMULACIONCONSERVACIONESPERMATOZOIDESREPRODUCCION ANIMALFil: Sansiñena, Marina Julia. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; ArgentinaFil: Santos, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; ArgentinaFil: Santos, María Victoria. Universidad Nacional de La Plata. Facultad de Ingeniería. Depto. de Ingeniería Química; ArgentinaFil: Zaritzky, Noemí. Universidad Nacional de La Plata. Facultad de Ingeniería. Depto. de Ingeniería Química; ArgentinaFil: Zaritzky, Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; ArgentinaFil: Chirife, Jorge. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; ArgentinaAbstract: Slush nitrogen (SN2) is a mixture of solid nitrogen and liquid nitrogen coexisting under an average temperature of -207ºC. In order to investigate whether plunging a French plastic straw (commonly used for spermatozoa cryopreservation) in SN2 may substantially increase cooling rates with respect to liquid nitrogen (LN2), a numerical simulation of the heat conduction equation with convective boundary condition was used to predict the cooling rates. Calculations performed using heat transfer coefficients in the range of film boiling confirmed the main benefit of plunging a straw in slush over LN2 does not arise from their temperature difference (-207ºC vs. -196ºC) but from an increase in the external heat transfer coefficient. Numerical simulations using high heat transfer (h) coefficients (assumed to prevail in SN2) suggested that plunging in SN2 would increase cooling rates of French straw. This increase of cooling rates was attributed to a less or null film boiling responsible for the low heat transfer coefficients in liquid nitrogen when the straw is placed in the solidliquid mixture or slush. In addition, it was demonstrated that predicted cooling rates of French straws in SN2 tends to level-off for high h values, suggesting heat transfer is dictated by the heat conduction within the liquid filled plastic straw2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://repositorio.uca.edu.ar/handle/123456789/5456Sansiñena, M., M.V. Santos, N. Zaritzky y J. Chirife. 2011. Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation [en línea]. Preprint del documento publicado en Theriology, enero 2012 (http://dx.doi.org/10.1016/j.theriogenology.2011.10.044). Disponible en: https://repositorio.uca.edu.ar/handle/123456789/5456spainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:Repositorio Institucional (UCA)instname:Pontificia Universidad Católica Argentina2025-07-03T10:56:07Zoai:ucacris:123456789/5456instacron:UCAInstitucionalhttps://repositorio.uca.edu.ar/Universidad privadaNo correspondehttps://repositorio.uca.edu.ar/oaiclaudia_fernandez@uca.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:25852025-07-03 10:56:07.872Repositorio Institucional (UCA) - Pontificia Universidad Católica Argentinafalse
dc.title.none.fl_str_mv Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation
title Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation
spellingShingle Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation
Sansiñena, Marina Julia
REFRIGERACION
NITROGENO LIQUIDO
TRANSFERENCIA DE CALOR
SIMULACION
CONSERVACION
ESPERMATOZOIDES
REPRODUCCION ANIMAL
title_short Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation
title_full Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation
title_fullStr Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation
title_full_unstemmed Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation
title_sort Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation
dc.creator.none.fl_str_mv Sansiñena, Marina Julia
Santos, María Victoria
Zaritzky, Noemí
Chirife, Jorge
author Sansiñena, Marina Julia
author_facet Sansiñena, Marina Julia
Santos, María Victoria
Zaritzky, Noemí
Chirife, Jorge
author_role author
author2 Santos, María Victoria
Zaritzky, Noemí
Chirife, Jorge
author2_role author
author
author
dc.subject.none.fl_str_mv REFRIGERACION
NITROGENO LIQUIDO
TRANSFERENCIA DE CALOR
SIMULACION
CONSERVACION
ESPERMATOZOIDES
REPRODUCCION ANIMAL
topic REFRIGERACION
NITROGENO LIQUIDO
TRANSFERENCIA DE CALOR
SIMULACION
CONSERVACION
ESPERMATOZOIDES
REPRODUCCION ANIMAL
dc.description.none.fl_txt_mv Fil: Sansiñena, Marina Julia. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; Argentina
Fil: Santos, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Santos, María Victoria. Universidad Nacional de La Plata. Facultad de Ingeniería. Depto. de Ingeniería Química; Argentina
Fil: Zaritzky, Noemí. Universidad Nacional de La Plata. Facultad de Ingeniería. Depto. de Ingeniería Química; Argentina
Fil: Zaritzky, Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Chirife, Jorge. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; Argentina
Abstract: Slush nitrogen (SN2) is a mixture of solid nitrogen and liquid nitrogen coexisting under an average temperature of -207ºC. In order to investigate whether plunging a French plastic straw (commonly used for spermatozoa cryopreservation) in SN2 may substantially increase cooling rates with respect to liquid nitrogen (LN2), a numerical simulation of the heat conduction equation with convective boundary condition was used to predict the cooling rates. Calculations performed using heat transfer coefficients in the range of film boiling confirmed the main benefit of plunging a straw in slush over LN2 does not arise from their temperature difference (-207ºC vs. -196ºC) but from an increase in the external heat transfer coefficient. Numerical simulations using high heat transfer (h) coefficients (assumed to prevail in SN2) suggested that plunging in SN2 would increase cooling rates of French straw. This increase of cooling rates was attributed to a less or null film boiling responsible for the low heat transfer coefficients in liquid nitrogen when the straw is placed in the solidliquid mixture or slush. In addition, it was demonstrated that predicted cooling rates of French straws in SN2 tends to level-off for high h values, suggesting heat transfer is dictated by the heat conduction within the liquid filled plastic straw
description Fil: Sansiñena, Marina Julia. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; Argentina
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://repositorio.uca.edu.ar/handle/123456789/5456
Sansiñena, M., M.V. Santos, N. Zaritzky y J. Chirife. 2011. Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation [en línea]. Preprint del documento publicado en Theriology, enero 2012 (http://dx.doi.org/10.1016/j.theriogenology.2011.10.044). Disponible en: https://repositorio.uca.edu.ar/handle/123456789/5456
url https://repositorio.uca.edu.ar/handle/123456789/5456
identifier_str_mv Sansiñena, M., M.V. Santos, N. Zaritzky y J. Chirife. 2011. Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation [en línea]. Preprint del documento publicado en Theriology, enero 2012 (http://dx.doi.org/10.1016/j.theriogenology.2011.10.044). Disponible en: https://repositorio.uca.edu.ar/handle/123456789/5456
dc.language.none.fl_str_mv spa
language spa
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Institucional (UCA)
instname:Pontificia Universidad Católica Argentina
reponame_str Repositorio Institucional (UCA)
collection Repositorio Institucional (UCA)
instname_str Pontificia Universidad Católica Argentina
repository.name.fl_str_mv Repositorio Institucional (UCA) - Pontificia Universidad Católica Argentina
repository.mail.fl_str_mv claudia_fernandez@uca.edu.ar
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score 13.070432

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