Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach

Autores
Santos, María V.; Sansiñena, Marina Julia; Zaritzky, Noemí; Chirife, Jorge
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Santos, María V. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Ingeniería Química; Argentina
Fil: Santos, María V. Universidad Nacional de La Plata. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Santos, María V. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sansiñena, Marina Julia. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; Argentina
Fil: Sansiñena, Marina Julia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Zaritzky, Noemí. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Ingeniería Química; Argentina
Fil: Zaritzky, Noemí. Universidad Nacional de La Plata. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Zaritzky, Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chirife, Jorge. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; Argentina
Abstract: Background: Dry ice-ethanol bath (-78ºC) have been widely used in low temperature biological research to attain rapid cooling of samples below freezing temperature. The prediction of cooling rates of biological samples immersed in dry ice-ethanol bath is of practical interest in cryopreservation. The cooling rate can be obtained using mathematical models representing the heat conduction equation in transient state. Additionally, at the solid cryogenic-fluid interface, the knowledge of the surface heat transfer coefficient (h) is necessary for the convective boundary condition in order to correctly establish the mathematical problem. Objective: The study was to apply numerical modeling to obtain the surface heat transfer coefficient of a dry ice-ethanol bath. Materials and methods: A numerical finite element solution of heat conduction equation was used to obtain surface heat transfer coefficients from measured temperatures at the center of polytetrafluoroethylene and polymethylmetacrylate cylinders immersed in a dry ice-ethanol cooling bath. The numerical model considered the temperature dependence of thermophysical properties of plastic materials used. Results: A negative linear relationship is observed between cylinder diameter and heat transfer coefficient in the liquid bath, the calculated h values were 308, 135 and 62.5 W/(m2K) for PMMA 1.3, PTFE 2.59 and 3.14 cm in diameter, respectively. Conclusion: The calculated heat transfer coefficients were consistent among several replicates; h in dry ice-ethanol showed an inverse relationship with cylinder diameter.
Fuente
Cryolettes. 2017, 38 (2)
Materia
TEMPERATURA
ENFRIAMIENTO
TRANSFERENCIA DE CALOR
ETANOL
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:123456789/15089
Acceder
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oai_identifier_str oai:ucacris:123456789/15089
network_acronym_str RIUCA
repository_id_str 2585
network_name_str Repositorio Institucional (UCA)
spelling Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approachSantos, María V.Sansiñena, Marina JuliaZaritzky, NoemíChirife, JorgeTEMPERATURAENFRIAMIENTOTRANSFERENCIA DE CALORETANOLFil: Santos, María V. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Ingeniería Química; ArgentinaFil: Santos, María V. Universidad Nacional de La Plata. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; ArgentinaFil: Santos, María V. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sansiñena, Marina Julia. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; ArgentinaFil: Sansiñena, Marina Julia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Zaritzky, Noemí. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Ingeniería Química; ArgentinaFil: Zaritzky, Noemí. Universidad Nacional de La Plata. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; ArgentinaFil: Zaritzky, Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Chirife, Jorge. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; ArgentinaAbstract: Background: Dry ice-ethanol bath (-78ºC) have been widely used in low temperature biological research to attain rapid cooling of samples below freezing temperature. The prediction of cooling rates of biological samples immersed in dry ice-ethanol bath is of practical interest in cryopreservation. The cooling rate can be obtained using mathematical models representing the heat conduction equation in transient state. Additionally, at the solid cryogenic-fluid interface, the knowledge of the surface heat transfer coefficient (h) is necessary for the convective boundary condition in order to correctly establish the mathematical problem. Objective: The study was to apply numerical modeling to obtain the surface heat transfer coefficient of a dry ice-ethanol bath. Materials and methods: A numerical finite element solution of heat conduction equation was used to obtain surface heat transfer coefficients from measured temperatures at the center of polytetrafluoroethylene and polymethylmetacrylate cylinders immersed in a dry ice-ethanol cooling bath. The numerical model considered the temperature dependence of thermophysical properties of plastic materials used. Results: A negative linear relationship is observed between cylinder diameter and heat transfer coefficient in the liquid bath, the calculated h values were 308, 135 and 62.5 W/(m2K) for PMMA 1.3, PTFE 2.59 and 3.14 cm in diameter, respectively. Conclusion: The calculated heat transfer coefficients were consistent among several replicates; h in dry ice-ethanol showed an inverse relationship with cylinder diameter.2017info: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/123456789/150890143-2044Santos, M. V. et al. Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach [en línea]. Cryolettes. 2017, 38 (2). Disponible en: https://repositorio.uca.edu.ar/handle/123456789/15089Cryolettes. 2017, 38 (2)reponame:Repositorio Institucional (UCA)instname:Pontificia Universidad Católica Argentinaenginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/2025-07-03T10:58:51Zoai:ucacris:123456789/15089instacron:UCAInstitucionalhttps://repositorio.uca.edu.ar/Universidad privadaNo correspondehttps://repositorio.uca.edu.ar/oaiclaudia_fernandez@uca.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:25852025-07-03 10:58:52.027Repositorio Institucional (UCA) - Pontificia Universidad Católica Argentinafalse
dc.title.none.fl_str_mv Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach
title Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach
spellingShingle Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach
Santos, María V.
TEMPERATURA
ENFRIAMIENTO
TRANSFERENCIA DE CALOR
ETANOL
title_short Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach
title_full Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach
title_fullStr Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach
title_full_unstemmed Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach
title_sort Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach
dc.creator.none.fl_str_mv Santos, María V.
Sansiñena, Marina Julia
Zaritzky, Noemí
Chirife, Jorge
author Santos, María V.
author_facet Santos, María V.
Sansiñena, Marina Julia
Zaritzky, Noemí
Chirife, Jorge
author_role author
author2 Sansiñena, Marina Julia
Zaritzky, Noemí
Chirife, Jorge
author2_role author
author
author
dc.subject.none.fl_str_mv TEMPERATURA
ENFRIAMIENTO
TRANSFERENCIA DE CALOR
ETANOL
topic TEMPERATURA
ENFRIAMIENTO
TRANSFERENCIA DE CALOR
ETANOL
dc.description.none.fl_txt_mv Fil: Santos, María V. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Ingeniería Química; Argentina
Fil: Santos, María V. Universidad Nacional de La Plata. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Santos, María V. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sansiñena, Marina Julia. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; Argentina
Fil: Sansiñena, Marina Julia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Zaritzky, Noemí. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Ingeniería Química; Argentina
Fil: Zaritzky, Noemí. Universidad Nacional de La Plata. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Zaritzky, Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chirife, Jorge. Pontificia Universidad Católica Argentina. Facultad de Ciencias Agrarias; Argentina
Abstract: Background: Dry ice-ethanol bath (-78ºC) have been widely used in low temperature biological research to attain rapid cooling of samples below freezing temperature. The prediction of cooling rates of biological samples immersed in dry ice-ethanol bath is of practical interest in cryopreservation. The cooling rate can be obtained using mathematical models representing the heat conduction equation in transient state. Additionally, at the solid cryogenic-fluid interface, the knowledge of the surface heat transfer coefficient (h) is necessary for the convective boundary condition in order to correctly establish the mathematical problem. Objective: The study was to apply numerical modeling to obtain the surface heat transfer coefficient of a dry ice-ethanol bath. Materials and methods: A numerical finite element solution of heat conduction equation was used to obtain surface heat transfer coefficients from measured temperatures at the center of polytetrafluoroethylene and polymethylmetacrylate cylinders immersed in a dry ice-ethanol cooling bath. The numerical model considered the temperature dependence of thermophysical properties of plastic materials used. Results: A negative linear relationship is observed between cylinder diameter and heat transfer coefficient in the liquid bath, the calculated h values were 308, 135 and 62.5 W/(m2K) for PMMA 1.3, PTFE 2.59 and 3.14 cm in diameter, respectively. Conclusion: The calculated heat transfer coefficients were consistent among several replicates; h in dry ice-ethanol showed an inverse relationship with cylinder diameter.
description Fil: Santos, María V. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Ingeniería Química; Argentina
publishDate 2017
dc.date.none.fl_str_mv 2017
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/123456789/15089
0143-2044
Santos, M. V. et al. Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach [en línea]. Cryolettes. 2017, 38 (2). Disponible en: https://repositorio.uca.edu.ar/handle/123456789/15089
url https://repositorio.uca.edu.ar/handle/123456789/15089
identifier_str_mv 0143-2044
Santos, M. V. et al. Experimental determination of surface heat transfer coefficient in a dry ice-ethanol cooling bath using a numerical approach [en línea]. Cryolettes. 2017, 38 (2). Disponible en: https://repositorio.uca.edu.ar/handle/123456789/15089
dc.language.none.fl_str_mv eng
language eng
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 Cryolettes. 2017, 38 (2)
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 12.982451

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