Documents disponibles écrits par cet auteur

Numerical simulation of temperature and velocity in a refrigerated warehouse / Son H. Ho in International journal of refrigeration, Vol. 33 N° 5 (Août 2010) 

Public ISBD [article]  in International journal of refrigeration > Vol. 33 N° 5 (Août 2010) . - pp. 1015-1025 Titre : Numerical simulation of temperature and velocity in a refrigerated warehouse Titre original : Simulation numérique de la température et la vitesse de l'air dans un entrepôt frigorifique Type de document : texte imprimé Auteurs : Son H. Ho, Auteur ; Luis Rosario, Auteur ; Muhammad M. Rahman, Auteur Année de publication : 2010 Article en page(s) : pp. 1015-1025 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Refrigerated  warehouse  Modelling  Numerical  simulation  Distribution  Velocity  Air–temperature Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : This paper presents air velocity and temperature distribution in a refrigerated warehouse. The refrigerated space under study has a set of ceiling-type cooling units installed in front of the arrays of stacks of palletized product packages. Numerical solutions of the steady-state airflow and heat transfer were done using a complete three-dimensional model and an equivalent two-dimensional model. The results obtained from both models were found to be in good agreement with each other. A parametric analysis was performed using the equivalent model with various values of blowing air velocity and locations of the cooling units. It was found that a better cooling effectiveness and uniformity of temperature in the refrigerated space could be achieved by using higher blowing air velocity and/or locating the cooling units lower and closer toward the arrays of product packages. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710000460 [article] Numerical simulation of temperature and velocity in a refrigerated warehouse = Simulation numérique de la température et la vitesse de l'air dans un entrepôt frigorifique [texte imprimé] / Son H. Ho, Auteur ; Luis Rosario, Auteur ; Muhammad M. Rahman, Auteur . - 2010 . - pp. 1015-1025. Génie Mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 33 N° 5 (Août 2010) . - pp. 1015-1025 Mots-clés : Refrigerated  warehouse  Modelling  Numerical  simulation  Distribution  Velocity  Air–temperature Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : This paper presents air velocity and temperature distribution in a refrigerated warehouse. The refrigerated space under study has a set of ceiling-type cooling units installed in front of the arrays of stacks of palletized product packages. Numerical solutions of the steady-state airflow and heat transfer were done using a complete three-dimensional model and an equivalent two-dimensional model. The results obtained from both models were found to be in good agreement with each other. A parametric analysis was performed using the equivalent model with various values of blowing air velocity and locations of the cooling units. It was found that a better cooling effectiveness and uniformity of temperature in the refrigerated space could be achieved by using higher blowing air velocity and/or locating the cooling units lower and closer toward the arrays of product packages. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710000460

Numerical simulation of transient thermal transport on a rotating disk under partially confined laminar liquid jet impingement / Jorge C. Lallave in Journal of heat transfer, Vol. 132 N° 5 (Mai 2010) 

Public ISBD [article]  in Journal of heat transfer > Vol. 132 N° 5 (Mai 2010) . - pp. [052201-1/8] Titre : Numerical simulation of transient thermal transport on a rotating disk under partially confined laminar liquid jet impingement Type de document : texte imprimé Auteurs : Jorge C. Lallave, Auteur ; Muhammad M. Rahman, Auteur Article en page(s) : pp. [052201-1/8] Note générale : Physique Langues : Anglais (eng) Mots-clés : Partially  confined  liquid  jet  impingement  Transeint  conjugate  transfer  Rotating  disk Index. décimale : 536 Chaleur. Thermodynamique Résumé : This paper considers the transient conjugate heat transfer characterization of a partially confined liquid jet impinging on a rotating and uniformly heated solid disk of finite thickness and radius. A constant heat flux was imposed at the bottom surface of the solid disk at t=0, and heat transfer was monitored for the entire duration of the transient until the steady state condition was reached. Calculations were done for a number of disk materials using water as the coolant, covering a range of Reynolds numbers (225–900), Ekman numbers (7.08×10−5−[infinity]), nozzle-to-target spacing (beta=0.25–1.0), confinement ratios (rp/rd=0.2–0.75), disk thicknesses to nozzle diameter ratios (b/dn=0.25–1.67), and solid to fluid thermal conductivity ratios (36.91–697.56). It was found that a higher Reynolds number decreases the time to achieve the steady state condition and increases the local and average Nusselt number. The duration of the transient increases with the increment of the Ekman number and disk thickness, and the reduction in the thermal diffusivity of the disk material. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&smode=strresults& [...] [article] Numerical simulation of transient thermal transport on a rotating disk under partially confined laminar liquid jet impingement [texte imprimé] / Jorge C. Lallave, Auteur ; Muhammad M. Rahman, Auteur . - pp. [052201-1/8]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 132 N° 5 (Mai 2010) . - pp. [052201-1/8] Mots-clés : Partially  confined  liquid  jet  impingement  Transeint  conjugate  transfer  Rotating  disk Index. décimale : 536 Chaleur. Thermodynamique Résumé : This paper considers the transient conjugate heat transfer characterization of a partially confined liquid jet impinging on a rotating and uniformly heated solid disk of finite thickness and radius. A constant heat flux was imposed at the bottom surface of the solid disk at t=0, and heat transfer was monitored for the entire duration of the transient until the steady state condition was reached. Calculations were done for a number of disk materials using water as the coolant, covering a range of Reynolds numbers (225–900), Ekman numbers (7.08×10−5−[infinity]), nozzle-to-target spacing (beta=0.25–1.0), confinement ratios (rp/rd=0.2–0.75), disk thicknesses to nozzle diameter ratios (b/dn=0.25–1.67), and solid to fluid thermal conductivity ratios (36.91–697.56). It was found that a higher Reynolds number decreases the time to achieve the steady state condition and increases the local and average Nusselt number. The duration of the transient increases with the increment of the Ekman number and disk thickness, and the reduction in the thermal diffusivity of the disk material. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&smode=strresults& [...]