Autor segons l'article: Asfand, Faisal; Stiriba, Youssef; Bourouis, Mahmoud
Departament: Enginyeria Mecànica
Autor/s de la URV: Bourouis Chebata, Mahmoud / Stiriba, Youssef
Paraules clau: Water-lithium bromide Plate-and-frame membrane absorber Membrane contactors Heat and mass transfer Cfd simulation Absorption cooling systems
Resum: Absorption cooling systems employing membrane based components provide an interesting opportunity to use the technology for small scale applications. Steady-state heat and mass transfer analyses of a water-lithium bromide membrane based absorber are performed. CFD (computational fluid dynamics) tool ANSYS/FLUENT 14.0 is used to perform the simulation and investigate the behaviour of the heat and mass transfer mechanisms at local levels in the channels. Results show that the solution film thickness is an important parameter which significantly affects the mass transfer mechanism. It was observed that the absorption rate increased by a factor of 3 when the solution channel thickness was reduced from 2 mm to 0.5 mm. In addition, the absorption rate was increased by a factor of 2.5 when the solution inlet flow velocity was increased from 0.00118 m/s to 0.00472 m/s. The solution film thickness and velocity can be independently controlled in plate-and-frame membrane based absorbers. Therefore to design a compact and efficient plate-and-frame membrane absorber with water as a refrigerant, an optimum value of 0.5 mm for the solution channel thickness is suggested and a solution inlet velocity of about 0.005 m/s is recommended to achieve high absorption rates with acceptable pressure drop along the solution channel.
Àrees temàtiques: Thermodynamics Renewable energy, sustainability and the environment Química Pollution Modeling and simulation Medicina iii Medicina ii Mechanical engineering Materiais Management, monitoring, policy and law Interdisciplinar Industrial and manufacturing engineering Geografía Geociências General energy Fuel technology Engineering, chemical Engenharias iv Engenharias iii Engenharias ii Engenharias i Energy engineering and power technology Energy (miscellaneous) Energy (all) Energy & fuels Electrical and electronic engineering Economia Civil and structural engineering Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Building and construction Biotecnología Biodiversidade Administração pública e de empresas, ciências contábeis e turismo
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: mahmoud.bourouis@urv.cat youssef.stiriba@urv.cat
Identificador de l'autor: 0000-0003-2476-5967 0000-0002-0272-7807
Data d'alta del registre: 2023-05-21
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S0360544215010889
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Energy. 91 517-530
Referència de l'ítem segons les normes APA: Asfand, Faisal; Stiriba, Youssef; Bourouis, Mahmoud (2015). CFD simulation to investigate heat and mass transfer processes in a membrane-based absorber for water-LiSr absorption cooling systems. Energy, 91(), 517-530. DOI: 10.1016/j.energy.2015.08.018
DOI de l'article: 10.1016/j.energy.2015.08.018
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2015
Tipus de publicació: Journal Publications
Repositori URV