A generalized computational model for the simulation of adsorption packed bed reactors – Parametric study of five reactor geometries for cooling applications

Papakokkinos, Giorgos; González, Jesús Castro; Lopez, Joan; Oliva, A.

doi:10.1016/j.apenergy.2018.10.081

Cited by 33 publications

(20 citation statements)

References 44 publications

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“…Shabir et al [95] developed a review of materials used in adsorption chillers, where he compared the physical properties of adsorbents, adsorption equilibrium, and uptake, but nothing was mentioned about the refrigerant evaporation temperature, which significantly affects the COP and SCP of the system. On the other hand, Papakokkinos et al [96] in their study pointed out the crucial importance of the values of the system operating temperatures. The authors presented software to predict the minimum desorption temperature for adsorption isotherms classified according to IUPAC.…”

Section: Adsorption Working Pairs For Different Refrigerant Evaporati...mentioning

confidence: 98%

Adsorbents, Working Pairs and Coated Beds for Natural Refrigerants in Adsorption Chillers—State of the Art

et al. 2021

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Adsorption refrigeration systems are promising, sustainable solutions for many cooling applications. The operating range and the performance of an adsorption cooling cycle are strongly dependent on the properties of adsorbents, adsorbates, and bed coatings. Therefore, further research and analysis may lead to improved performance of adsorption coolers. In this paper, studies on working pairs using natural refrigerants and the properties of adsorbent coatings were reviewed. The selected working pairs were then thermodynamically characterised and ranked in terms of refrigerant evaporation temperature values. This was found to be a key parameter affecting the applicability of a given adsorbent/adsorbate pair and the value of SCP (Specific Cooling Power), COP (Coefficient of Performance) parameters, which are now commonly used comparison criteria of adsorption chillers. In the analysis of the coating studies, the focus was on the effect of individual parameters on the performance of the cooling system and the effect of using coated beds compared to packed beds. It was found that a fundamental problem in comparing the performance of different cooling systems is the use of different operating conditions during the tests. Therefore, the analysis compares the performance of the systems along with the most important thermodynamic cycle parameters for the latest studies.

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Section: Adsorption Working Pairs For Different Refrigerant Evaporati...mentioning

confidence: 98%

Adsorbents, Working Pairs and Coated Beds for Natural Refrigerants in Adsorption Chillers—State of the Art

et al. 2021

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“…The rapid development of high-performance computing (HPC) resulted in the increasing scope of computational fluid dynamics (CFD) application, also in the area of adsorption technology. Papakokkinos et al [51] presented a generalized three-dimensional CFD model based on the unstructured meshes. Dynamic conjugate simulations of the packed bed and the heat exchanger allowed to study the influence of sorption bed geometry on the reactor performance.…”

Section: Literature Reviewmentioning

confidence: 99%

Evaluation of Heat Transfer Performance of a Multi-Disc Sorption Bed Dedicated for Adsorption Cooling Technology

Sosnowski

2019

Energies

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The possibility of implementing the innovative multi-disc sorption bed combined with the heat exchanger into the adsorption cooling technology is investigated experimentally and numerically in the paper. The developed in-house sorption model incorporated into the commercial computational fluid dynamics (CFD) code was applied within the analysis. The research allowed to define the design parameters of the proposed type of the sorption bed and correlate them with basic factors influencing the performance of the sorption bed and its dimensions. The designed multi-disc sorption bed is characterized by great scalability and allows to significantly expand the potential installation sites of the adsorption chillers.

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“…1). On the base of numerical analysis, it was demonstrated that FFT Hexes show the best efficiency [21,22].…”

Section: Introductionmentioning

confidence: 99%

Modeling of finned flat tube heat exchangers and search of Nusselt-Reynolds numbers correlations

Grekova,

Lysikov,

Solovyeva

et al. 2024

J. Phys.: Conf. Ser.

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Using a wind tunnel, a series of model finned flat tube copper radiators was studied. All geometrical parameters of the studied radiators were fixed except for the height of the fin, which was varied in the range from 5 to 20 mm. It was found that the global water-air heat transfer coefficient weakly depends on the water flow rate and significantly depends on the air flow rate. Correlations between the Nusselt and Reynolds numbers for fins with different heights are found. Based on the obtained correlations, a procedure for scaling the heat exchanger, verified experimentally, is proposed. The experiments performed demonstrate the efficiency and time-saving potential of the proposed method for choosing the optimal finned flat tube heat exchanger for adsorption heat conversion systems.

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A generalized computational model for the simulation of adsorption packed bed reactors – Parametric study of five reactor geometries for cooling applications

Abstract: Portal del coneixement obert de la UPC http://upcommons.upc.edu/e-prints Aquesta és una còpia de la versió author's final draft d'un article publicat a la revista Applied Energy.

Cited by 33 publications

References 44 publications

Adsorbents, Working Pairs and Coated Beds for Natural Refrigerants in Adsorption Chillers—State of the Art

Adsorbents, Working Pairs and Coated Beds for Natural Refrigerants in Adsorption Chillers—State of the Art

Evaluation of Heat Transfer Performance of a Multi-Disc Sorption Bed Dedicated for Adsorption Cooling Technology

Modeling of finned flat tube heat exchangers and search of Nusselt-Reynolds numbers correlations

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