A computer model for simulation of absorption systems in flexible and modular form

Grossman, G.; Gommed, Khaled; Gadoth, D.

doi:10.2172/5242145

Cited by 21 publications

(12 citation statements)

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“…Some results for typical cases showing design point performance have been described in ref. [13]. Most systems with a working fluid involving a nonvolatile absorbent usually converged without difficulty; problems were encountered concerning fluids with a volatile absorbent such as H 2 O-NH 3 because of the highly nonlinear behavior of these materials at large concentrations of the volatile component in the vapor phase.…”

Section: Results Of Simulationmentioning

confidence: 99%

“…Several examples of input preparation are included in ref. [13]. When the graphical interface is used, the input file *.DAT is created automatically from the drawn diagram and from the data entered interactively.…”

Section: The Inputmentioning

confidence: 99%

“…1 may be found in ref. [13], including samples of input and output for some relatively simple absorption cycles. The following sections will discuss the remaining three modules of the code illustrated in Fig.…”

Section: The Outputmentioning

confidence: 99%

“…The thermodynamic properties of working fluids have been extracted from the literature, with references given in [13]. The property database presently contains the following materials:…”

Section: Fig 4 Structure Of the Property Databasementioning

confidence: 99%

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Modular Simulation of Absorption Systems User's Guide (Windows Version 5.0)

Grossman¹

2000

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Section: Results Of Simulationmentioning

confidence: 99%

Section: The Inputmentioning

confidence: 99%

Section: The Outputmentioning

confidence: 99%

“…The thermodynamic properties of working fluids have been extracted from the literature, with references given in [13]. The property database presently contains the following materials:…”

Section: Fig 4 Structure Of the Property Databasementioning

confidence: 99%

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Modular Simulation of Absorption Systems User's Guide (Windows Version 5.0)

Grossman¹

2000

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“…Also, since air is easily available, it is employed in places where water scarcity is there. Salim (2001) performed simulation studies on a waterelithium bromide absorption system of a capacity of 7 kW using ABSIM software (Grossman et al, 1991), but no experimental validation was done. Alva and Gonzalez (2002) simulated air-cooled solar assisted absorption systems of the capacities of 10.5 kW, 14 kW and 17.5 kW.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on air-cooled NH3–H2O based modified gax absorption cooling system

Jawahar

Saravanan

2011

International Journal of Refrigeration

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Thermo-physical properties of the nano-binary fluid (acetone–zinc bromide-ZnO) as a low temperature operating fluid for use in an absorption refrigeration machine

2019

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The current technical note is an expression for extending aspects of the previous work of Ajib and Karno [1] which related to the thermophysical properties of acetone / ZnBr2. The study covers the thermal conductivity of a solution which appears to be a promising fluid for operating vapour absorption refrigeration (VAR) systems from a low temperature source. It covers also an investigation of acetone / ZnBr2 -ZnO nanofluid including the preparation, stability, structure and properties, a zinc based nanoparticle being chosen in order to reduce chemical interactions. Furthermore, this study illustrates an extension of the log p, T diagram of the acetone zinc bromide up to 1.39 bar. The results show that the thermal conductivity drops with increasing salt concentration. With increasing nanoparticles, the density, viscosity and the thermal conductivity increase, as expected, but the heat capacity drops. Both theoretical and experimentally derived formulae for ZnO nano fluid conductivity from the literature are seen to produce good correspondence to the conductivity measured here, but in the case of the theoretical formula, the influence of particle morphology is seen to be significant. The results indicate that converting the acetone / ZnBr2 to a nanofluid provides a potential improvement of performance of this fluid in the vapour absorption refrigeration system, but that suspension stability is difficult to attain.

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A computer model for simulation of absorption systems in flexible and modular form

Cited by 21 publications

References 0 publications

Modular Simulation of Absorption Systems User's Guide (Windows Version 5.0)

Modular Simulation of Absorption Systems User's Guide (Windows Version 5.0)

Experimental studies on air-cooled NH3–H2O based modified gax absorption cooling system

Thermo-physical properties of the nano-binary fluid (acetone–zinc bromide-ZnO) as a low temperature operating fluid for use in an absorption refrigeration machine

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