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Détail de l'auteur
Auteur T. Kousksou
Documents disponibles écrits par cet auteur
Affiner la rechercheEncapsulated phase change material under cyclic pulsed heat load / T. Kousksou in International journal of refrigeration, Vol. 33 N° 8 (Décembre 2010)
[article]
in International journal of refrigeration > Vol. 33 N° 8 (Décembre 2010) . - pp. 1648-1656
Titre : Encapsulated phase change material under cyclic pulsed heat load : Matériau à changement de phase encapsulé à charge thermique à pulsations Type de document : texte imprimé Auteurs : T. Kousksou, Auteur ; P. Bruel, Auteur Année de publication : 2011 Article en page(s) : pp. 1648-1656 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Heat storage Material Phase change Modelling Simulation Solar energy Improvement Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The objective of this work is to investigate numerically a storage system formed by a cylindrical tank which is randomly packed with spheres having uniform sizes and encapsulating paraffin as phase change material (PCM). The packed bed is tested for various complex input temperature signals of the working fluid as well as for different internal layouts. A stochastic differential Langevin equation is used to add some randomness in the sinusoidal inlet working fluid temperature signal. The results obtained put into evidence the noticeable sensitivity of the bed response to the adjunction of such a low amplitude stochastic signal. The results obtained for a multi-slab configuration indicate also that it is possible to maximise the energy stored under a latent form by properly selecting and ordering the different PCM’s in the bed. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710001234 [article] Encapsulated phase change material under cyclic pulsed heat load : Matériau à changement de phase encapsulé à charge thermique à pulsations [texte imprimé] / T. Kousksou, Auteur ; P. Bruel, Auteur . - 2011 . - pp. 1648-1656.
Génie Mécanique
Langues : Anglais (eng)
in International journal of refrigeration > Vol. 33 N° 8 (Décembre 2010) . - pp. 1648-1656
Mots-clés : Heat storage Material Phase change Modelling Simulation Solar energy Improvement Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The objective of this work is to investigate numerically a storage system formed by a cylindrical tank which is randomly packed with spheres having uniform sizes and encapsulating paraffin as phase change material (PCM). The packed bed is tested for various complex input temperature signals of the working fluid as well as for different internal layouts. A stochastic differential Langevin equation is used to add some randomness in the sinusoidal inlet working fluid temperature signal. The results obtained put into evidence the noticeable sensitivity of the bed response to the adjunction of such a low amplitude stochastic signal. The results obtained for a multi-slab configuration indicate also that it is possible to maximise the energy stored under a latent form by properly selecting and ordering the different PCM’s in the bed. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710001234 Forced convective heat transfer in supercooled phase-change material suspensions with stochastic crystallization / T. Kousksou in International journal of refrigeration, Vol. 33 N° 8 (Décembre 2010)
[article]
in International journal of refrigeration > Vol. 33 N° 8 (Décembre 2010) . - pp. 1569-1582
Titre : Forced convective heat transfer in supercooled phase-change material suspensions with stochastic crystallization Titre original : Suspensions surrefroidies de matériaux à changement de phase à cristallisation stochastique: transfert de chaleur lors de la convection forcée Type de document : texte imprimé Auteurs : T. Kousksou, Auteur ; T. El Rhafiki, Auteur ; K. El Omari, Auteur Année de publication : 2011 Article en page(s) : pp. 1569-1582 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Secondary refrigerant Material Phase change Modelling Simulation Melting Crystallization Suspension Nucleation Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : A model has been developed for the simulation of laminar hydrodynamic and heat transfer characteristics in a horizontal circular tube for a suspension flow with micro-size phase-change material (PCM) particles. The energy equation is formulated by taking into consideration the heat absorption (or release) due to the phase-change process. The heat source or heat generation term in the energy equation is derived from solutions for freezing or melting inside the particles. The supercooling breakdown induced by the stochastic character of the crystallization is taken into account in the modeling with nucleation laws. The solutions were compared to experimental results obtained by different authors. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710000927 [article] Forced convective heat transfer in supercooled phase-change material suspensions with stochastic crystallization = Suspensions surrefroidies de matériaux à changement de phase à cristallisation stochastique: transfert de chaleur lors de la convection forcée [texte imprimé] / T. Kousksou, Auteur ; T. El Rhafiki, Auteur ; K. El Omari, Auteur . - 2011 . - pp. 1569-1582.
Génie Mécanique
Langues : Anglais (eng)
in International journal of refrigeration > Vol. 33 N° 8 (Décembre 2010) . - pp. 1569-1582
Mots-clés : Secondary refrigerant Material Phase change Modelling Simulation Melting Crystallization Suspension Nucleation Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : A model has been developed for the simulation of laminar hydrodynamic and heat transfer characteristics in a horizontal circular tube for a suspension flow with micro-size phase-change material (PCM) particles. The energy equation is formulated by taking into consideration the heat absorption (or release) due to the phase-change process. The heat source or heat generation term in the energy equation is derived from solutions for freezing or melting inside the particles. The supercooling breakdown induced by the stochastic character of the crystallization is taken into account in the modeling with nucleation laws. The solutions were compared to experimental results obtained by different authors. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710000927 Numerical modeling of double-diffusive convection in ice slurry storage tank / T. Kousksou in International journal of refrigeration, Vol. 33 N° 8 (Décembre 2010)
[article]
in International journal of refrigeration > Vol. 33 N° 8 (Décembre 2010) . - pp. 1550-1558
Titre : Numerical modeling of double-diffusive convection in ice slurry storage tank Titre original : Modélisation de la convection à double diffusion dans un bac à accumulation de coulis de glace Type de document : texte imprimé Auteurs : T. Kousksou, Auteur ; A. Arid, Auteur ; J. Majid, Auteur Année de publication : 2011 Article en page(s) : pp. 1550-1558 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Thermal storage Ice slurry Modelling Simulation Melting Aqueous solution Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The interaction between laminar Rayleigh–Benard convection and non-isothermal melting process is studied for the case of ice slurry kept in a rectangular cavity heated from the bottom. Clear visualization of the Rayleigh–Benard convective cells and their interaction with the melting front are obtained. It is observed that the convective cells are characterized by zones of up-flow and down-flow, resulting in the development of a nonplanar interface. Because of the continuous advancement of the solid/liquid interface, the effective solid height of the cavity keeps decreasing. The results include also the evolution of the solid–liquid interface, the local temperature and the ice mass fraction inside the storage tank. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710000897 [article] Numerical modeling of double-diffusive convection in ice slurry storage tank = Modélisation de la convection à double diffusion dans un bac à accumulation de coulis de glace [texte imprimé] / T. Kousksou, Auteur ; A. Arid, Auteur ; J. Majid, Auteur . - 2011 . - pp. 1550-1558.
Génie Mécanique
Langues : Anglais (eng)
in International journal of refrigeration > Vol. 33 N° 8 (Décembre 2010) . - pp. 1550-1558
Mots-clés : Thermal storage Ice slurry Modelling Simulation Melting Aqueous solution Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The interaction between laminar Rayleigh–Benard convection and non-isothermal melting process is studied for the case of ice slurry kept in a rectangular cavity heated from the bottom. Clear visualization of the Rayleigh–Benard convective cells and their interaction with the melting front are obtained. It is observed that the convective cells are characterized by zones of up-flow and down-flow, resulting in the development of a nonplanar interface. Because of the continuous advancement of the solid/liquid interface, the effective solid height of the cavity keeps decreasing. The results include also the evolution of the solid–liquid interface, the local temperature and the ice mass fraction inside the storage tank. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710000897