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Fluid flow and heat transfer within a single horizontal fracture in an enhanced geothermal system / Rosemarie Mohais in Journal of heat transfer, Vol. 133 N° 11 (Novembre 2011) 

Public ISBD [article]  in Journal of heat transfer > Vol. 133 N° 11 (Novembre 2011) . - pp. [112603/1-8] Titre : Fluid flow and heat transfer within a single horizontal fracture in an enhanced geothermal system Type de document : texte imprimé Auteurs : Rosemarie Mohais, Auteur ; Chaoshui Xu, Auteur ; Peter Dowd, Auteur Année de publication : 2012 Article en page(s) : pp. [112603/1-8] Note générale : Physique Langues : Anglais (eng) Mots-clés : Enhanced  geothermal  systems  Channel  Fracture  Permeable  walls Index. décimale : 536 Chaleur. Thermodynamique Résumé : We present an analysis of fluid flow and heat transfer through a single horizontal channel with permeable walls which are at different temperatures. The problem is set in the context of hot dry rock geothermal energy extraction where water, introduced through an injection well, passes through a horizontal fracture by which transfer of heat is facilitated through advection of the fluid flowing toward the recovery well. We consider the walls of the fracture to have properties of a permeable medium and we study the effect of slip boundary conditions on velocity and temperature profiles for low Reynolds number (< 7) based on a similarity solution and perturbation expansion. We show that the velocity and heat transfer profiles are altered with the channel width, the permeability and a slip coefficient , which is a dimensionless constant related to the inherent properties of the channel. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000133000011 [...] [article] Fluid flow and heat transfer within a single horizontal fracture in an enhanced geothermal system [texte imprimé] / Rosemarie Mohais, Auteur ; Chaoshui Xu, Auteur ; Peter Dowd, Auteur . - 2012 . - pp. [112603/1-8]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 11 (Novembre 2011) . - pp. [112603/1-8] Mots-clés : Enhanced  geothermal  systems  Channel  Fracture  Permeable  walls Index. décimale : 536 Chaleur. Thermodynamique Résumé : We present an analysis of fluid flow and heat transfer through a single horizontal channel with permeable walls which are at different temperatures. The problem is set in the context of hot dry rock geothermal energy extraction where water, introduced through an injection well, passes through a horizontal fracture by which transfer of heat is facilitated through advection of the fluid flowing toward the recovery well. We consider the walls of the fracture to have properties of a permeable medium and we study the effect of slip boundary conditions on velocity and temperature profiles for low Reynolds number (< 7) based on a similarity solution and perturbation expansion. We show that the velocity and heat transfer profiles are altered with the channel width, the permeability and a slip coefficient , which is a dimensionless constant related to the inherent properties of the channel. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000133000011 [...]