A three-dimensional non-equilibrium model for an intermittent adsorption cooling system

Solar Energy ◽  
2000 ◽  
Vol 69 (1) ◽  
pp. 27-35 ◽  
Author(s):  
L.Z. Zhang
Keyword(s):  
Equilibrium Model ◽  
Cooling System ◽  
Three Dimensional ◽  
Adsorption Cooling System ◽  
Non Equilibrium

Three-Dimensional Study of Heat and Mass Transfer in a Partially Porous Elongated Cavity

2010 ◽  
Vol 297-301 ◽  
pp. 728-732
Author(s):  
N. Mimouni ◽  
Salahs Chikh ◽  
Rachid Bennacer
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Cooling System ◽  
Mass Transfer Rate ◽  
Vertical Wall ◽  
Three Dimensional ◽  
Simple Algorithm ◽  
Geometrical Parameters ◽  
Computational Domain ◽  
Adsorption Cooling System

A 3D numerical analysis is carried out to investigate heat and mass transfer in a partly porous cavity of high aspect ratio. The goal is to determine the best physical and geometrical parameters that allow optimal heat and mass transfer rate in such domain used in a solar adsorption cooling system. The computational domain consists of a tall cavity heated on the left vertical wall and cooled on the opposing wall. The SIMPLE algorithm is used to handle the velocity pressure coupling. Simulation results allow determining the optimal configuration of the used porous substrate and plain fluid position in the cavity in order to optimize the performance of such solar adsorption cooling installation.

Effect of Un-Balanced Water Supply and Nonuniform Pressure Distribution on the Performance of an Adsorption Cooling System

2019 ◽  
Vol 27 (02) ◽  
pp. 1950014
Author(s):  
Ngoc Vi Cao ◽  
Xuan Quang Duong ◽  
Woo Su Lee ◽  
Jae Dong Chung
Keyword(s):  
Water Supply ◽  
Pressure Distribution ◽  
Cooling System ◽  
Three Dimensional ◽  
Cooling Water ◽  
Finned Tube ◽  
Adsorption Chiller ◽  
Heating Water ◽  
Tube Type ◽  
Adsorption Cooling System

A three-dimensional numerical analysis was conducted to examine the effect on performance of un-balanced heating/cooling water supply and nonuniform pressure distribution in the beds, issues observed in an experiment by our colleague during the development of a 35[Formula: see text]kW prototype finned-tube type adsorption chiller. Case studies were conducted with reference values of [Formula: see text][Formula: see text]m/s, [Formula: see text][Formula: see text]Pa and [Formula: see text][Formula: see text]Pa, and the differences in [Formula: see text][Formula: see text]m/s, [Formula: see text][Formula: see text]Pa and [Formula: see text][Formula: see text]Pa. A remarkable increase in COP was found for the cases of un-balanced heating water supply and nonuniform pressure distribution when the bed was connected to the evaporator. However, after integration of multi-modules, the effect was smoothed out, which removed the worry about the degradation in the overall COP. The effect of un-balanced cooling water supply and nonuniform pressure distribution when the bed was connected to the condenser was not discernible. In all cases, the change in SCP was negligible.

Validation of the Thermal Non-Equilibrium Model in Periodic MHD Free Convection in a Non-Darcy Porous Media

2012 ◽  
Vol 5 (2) ◽  
pp. 144-149
Author(s):  
Montasser S. Tahat ◽  
Abdulmajeed S. Al-Ghamdi ◽  
Mohammad Q. Al-Odat
Keyword(s):  
Porous Media ◽  
Free Convection ◽  
Equilibrium Model ◽  
Non Equilibrium

scholarly journals Performance investigation of integrated PVT/adsorption cooling system under the climate conditions of Middle East

2020 ◽  
Vol 6 ◽  
pp. 168-173
Author(s):  
Ahmed A. Hassan ◽  
Ahmed E. Elwardany ◽  
Shinichi Ookawara ◽  
Ibrahim I. El-Sharkawy
Keyword(s):  
Middle East ◽  
Cooling System ◽  
Climate Conditions ◽  
Adsorption Cooling System

Theory of non-equilibrium critical phenomena in three-dimensional condensed systems of charged mobile nanoparticles

2014 ◽  
Vol 16 (27) ◽  
pp. 13974-13983 ◽  
Author(s):  
V. N. Kuzovkov ◽  
G. Zvejnieks ◽  
E. A. Kotomin
Keyword(s):  
Critical Phenomena ◽  
3D Structure ◽  
Three Dimensional ◽  
Charged Nanoparticles ◽  
Self Assembled ◽  
Oppositely Charged ◽  
Condensed Systems ◽  
Non Equilibrium

The 3d structure of self-assembled and oppositely charged nanoparticles.

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