Documents disponibles écrits par cet auteur

A correlation for confined nucleate boiling heat transfer / Mark Aaron Chan in Journal of heat transfer, Vol. 133 N° 7 (Juillet 2011) 

Public ISBD [article]  in Journal of heat transfer > Vol. 133 N° 7 (Juillet 2011) . - pp. [074502/1-4] Titre : A correlation for confined nucleate boiling heat transfer Type de document : texte imprimé Auteurs : Mark Aaron Chan, Auteur ; Christopher R. Yap, Auteur ; Kim Choon Ng, Auteur Année de publication : 2011 Article en page(s) : pp. [074502/1-4] Note générale : Physique Langues : Anglais (eng) Mots-clés : Confined  boiling  Boiling  enhancement  Boiling  correlation  Bond  number  Electronic  cooling  Nucleate  boiling Index. décimale : 536 Chaleur. Thermodynamique Résumé : This study presents a generalized confined boiling correlation applicable for various working fluids and operating conditions. A dimensionless parameter, Bond number, has been incorporated into the correlation to include the effects of confinement in the ebullition process of boiling. The proposed correlation is compared with an existing correlation based on their capability in predicting confined boiling data from the literature. A phenomenon of heat transfer coefficient stagnation is found for boiling in narrow spaces despite an increase in heat flux. Results show that the proposed correlation entails an excellent agreement with experimental data, and the predictions have a reasonably low mean absolute error of 17.3% for the entire database. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO00013300 [...] [article] A correlation for confined nucleate boiling heat transfer [texte imprimé] / Mark Aaron Chan, Auteur ; Christopher R. Yap, Auteur ; Kim Choon Ng, Auteur . - 2011 . - pp. [074502/1-4]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 7 (Juillet 2011) . - pp. [074502/1-4] Mots-clés : Confined  boiling  Boiling  enhancement  Boiling  correlation  Bond  number  Electronic  cooling  Nucleate  boiling Index. décimale : 536 Chaleur. Thermodynamique Résumé : This study presents a generalized confined boiling correlation applicable for various working fluids and operating conditions. A dimensionless parameter, Bond number, has been incorporated into the correlation to include the effects of confinement in the ebullition process of boiling. The proposed correlation is compared with an existing correlation based on their capability in predicting confined boiling data from the literature. A phenomenon of heat transfer coefficient stagnation is found for boiling in narrow spaces despite an increase in heat flux. Results show that the proposed correlation entails an excellent agreement with experimental data, and the predictions have a reasonably low mean absolute error of 17.3% for the entire database. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO00013300 [...]

Pool boiling heat transfer of water on finned surfaces at near vacuum pressures / Mark Aaron Chan in Journal of heat transfer, Vol. 132 N° 3 (Mars 2010) 

Public ISBD [article]  in Journal of heat transfer > Vol. 132 N° 3 (Mars 2010) . - pp. [031501-1/6] Titre : Pool boiling heat transfer of water on finned surfaces at near vacuum pressures Type de document : texte imprimé Auteurs : Mark Aaron Chan, Auteur ; Christopher R. Yap, Auteur ; Kim Choon Ng, Auteur Article en page(s) : pp. [031501-1/6] Note générale : Physique Langues : Anglais (eng) Mots-clés : Boiling  Extended  surfaces  Subatmospheric  pressure  Boiling  enhancement  Thermosyphon  Electronic  cooling  Bubble  visualization Index. décimale : 536 Chaleur. Thermodynamique Résumé : This research paper presents a study of boiling heat transfer from longitudinal rectangular-finned surfaces immersed in saturated water at low vapor pressures. Finned surfaces with assorted fin spacing, fin thicknesses, and fin heights on a copper based surface have been investigated. All the finned surfaces were found to increase both boiling heat transfer coefficients and critical heat fluxes. An optimal fin thickness was found for a configuration, and heat transfer coefficients have been obtained at the pressures. Factors affecting the boiling characteristics have been identified and the optimal enhancement requires a balance of the active nucleation sites, bubble flow resistance, natural convection, thin film evaporation, liquid superheating, heat transfer area, bubble coalescence, and liquid reflux resistance. High speed visualization of vapor plug and vapor film generation on the boiling surfaces has revealed significant insights into the boiling mechanisms at low saturation pressures. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Pool boiling heat transfer of water on finned surfaces at near vacuum pressures [texte imprimé] / Mark Aaron Chan, Auteur ; Christopher R. Yap, Auteur ; Kim Choon Ng, Auteur . - pp. [031501-1/6]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 132 N° 3 (Mars 2010) . - pp. [031501-1/6] Mots-clés : Boiling  Extended  surfaces  Subatmospheric  pressure  Boiling  enhancement  Thermosyphon  Electronic  cooling  Bubble  visualization Index. décimale : 536 Chaleur. Thermodynamique Résumé : This research paper presents a study of boiling heat transfer from longitudinal rectangular-finned surfaces immersed in saturated water at low vapor pressures. Finned surfaces with assorted fin spacing, fin thicknesses, and fin heights on a copper based surface have been investigated. All the finned surfaces were found to increase both boiling heat transfer coefficients and critical heat fluxes. An optimal fin thickness was found for a configuration, and heat transfer coefficients have been obtained at the pressures. Factors affecting the boiling characteristics have been identified and the optimal enhancement requires a balance of the active nucleation sites, bubble flow resistance, natural convection, thin film evaporation, liquid superheating, heat transfer area, bubble coalescence, and liquid reflux resistance. High speed visualization of vapor plug and vapor film generation on the boiling surfaces has revealed significant insights into the boiling mechanisms at low saturation pressures. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]