Performance investigation of adsorption cooling and desalination systems employing thermally enhanced copper foamed bed coated with SAPO-34 and CPO-27(Ni)

Shaaban, Mamdouh M.; Elsheniti, Mahmoud B.; Rezk, Ahmed; ElHelw, Mohamed; Elsamni, Osama A.

doi:10.1016/j.applthermaleng.2022.118056

Cited by 18 publications

(6 citation statements)

References 52 publications

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“…Researchers investigated designs and performances of ACSs for trucks, cars, buses, fishing boats, and locomotives. − The integration of ACS with other systems was also addressed. ACS with adsorption desalination (AD) ,, and desiccant dehumidification , are most common. This could be a potential strategy to enhance the COP, but thermo-economic investigations are still scarce.…”

Section: Simulated and Demonstrated Practical Examples Of Application...mentioning

confidence: 99%

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Water Vapor Adsorption by Porous Materials: From Chemistry to Practical Applications

et al. 2022

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In recent years, the deployment of chemically stable physisorbents in various water sorption-related applications has received significant attention. Depending on their structural features, different types of porous sorbents manifest distinct shapes of water sorption isotherms. The translation of water sorption profiles of adsorbents into appropriate practical applications is yet to be established. This Review gives an overview of the water adsorption studies conducted on different hydrolytically stable porous solids selected from different classes of solid-state materials (organic, inorganic, and hybrid materials). Brief analyses of the water sorption behavior and the relations to materials' intrinsic structural features are made. Based on adsorbents' observed water sorption characteristics, the prospects of their practical/commercial deployment in chosen sectors are also commented. The criteria for using porous adsorbents in specific water-related technologies, which can help guide the design and assembly of suitable water adsorbents, are also reviewed. In addition, the challenges that need to be overcome in developing efficient water vapor adsorbents for a given application are also discussed.

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Section: Simulated and Demonstrated Practical Examples Of Application...mentioning

confidence: 99%

“…270−272 The integration of ACS with other systems was also addressed. ACS with adsorption desalination (AD) 257,264,273 and desiccant dehumidification 274,275 are most common. This could be a potential strategy to enhance the COP, but thermo-economic investigations are still scarce.…”

Section: Simulated and Demonstrated Practical Examples Of Application...mentioning

confidence: 99%

Water Vapor Adsorption by Porous Materials: From Chemistry to Practical Applications

et al. 2022

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“…The numerical results showed good agreement with the experimental results. Additionally, the numerical model system of equations was validated in reference [20] with copper foamed beds coated with advanced adsorbents.…”

Section: Validationmentioning

confidence: 99%

Enhancing Adsorption Ice Maker Productivity using Beds of Aluminium Foam Packed with Activated Carbon

Elsheniti

Al-Ansary

Orfi

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The adsorption refrigeration system driven by solar energy is a promising sustainable solution to tackle the growing demand for cooling and meet environmental regulations as well. In addition, the increase in refrigeration needs is in phase with the increase in the abundant solar energy in the Middle East. This study aims at numerically investigating the utilize of a high adsorption performance material namely Maxsorb III, a type of activated carbon, packed in an advanced aluminium foam bed to produce ice from two-bed adsorption system. A detailed 2-D axisymmetric transient model considering mass, momentum, and energy balance equations coupled with isotherms and kinetic models in the adsorbent domain to describe the adsorption phenomena was developed and used for the simulations. Results of a typical packed bed using finned tube configuration were used as a base model to compare the performance enhancement. The aluminium foam-based system performance outperformed the base model in producing the ice by 16.8% at a high cycle time of 1200 s, regeneration temperature of 90°C, and foam thickness of 5 mm. Furthermore, the coefficient of performance and specific cooling power increased by 26.7% and 27.9%, respectively, driven by the considerable enhancement in the bed mass and heat transfer due to the use of metal foam.

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“…A coated sorbent layer could be implemented to reduce the thermal resistance at the boundary of sorbent grains and the heat exchanger surface. The effect of using coated beds and packed beds on adsorption system performance was discussed in [24,25]. It was investigated that the coated bed thermal parameters can be improved with the optimal selection of the coating thickness, grain size, and highly conductive binder used.…”

Section: Introductionmentioning

confidence: 99%

Implementation of Fluidized Bed Concept to Improve Heat Transfer in Ecological Adsorption Cooling and Desalination Systems

Grabowska,

Krzywanski,

Zylka

et al. 2024

Energies

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Sustainable development policy focuses on reducing the carbon footprint generated by the global industry and energy sector. Replacing conventional energy sources with environmentally friendly ones requires advanced research to increase energy efficiency and reduce the instability and intermittence of renewable sources. Moreover, adsorption chillers are an opportunity to introduce net-zero emission technologies to the refrigeration, air-conditioning, and desalination industries. Adsorption devices could be popularized if a method of effective heat transfer in the volume of the adsorption bed is developed. The innovative concept of introducing fluidized beds into the adsorption system can achieve the most promising results in improving energy efficiency. To confirm the adopted assumption, heat transfer coefficient calculations for the packed and fluidized bed were carried out in this paper based on experimental tests and literature data. The empirical research aims to extend the fundamental knowledge in the implementation of fluidization under low-pressure conditions, characteristic of the adsorption systems’ working cycle. Experiments were conducted on a unique test stand equipped with the Intensified Heat Transfer Adsorption Bed (IHTAB) reactor prototype. Five adsorption bed samples were analyzed. The reference sample consisted only of silica gel, and the subsequent ones contained aluminum or carbon nanotubes with 5 and 10% additions. In the case of samples with admixtures, the fluidized state increased the heat transfer coefficient on average from approx. 36.9 W/m2 K to approx. 245.4 W/m2 K.

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Performance investigation of adsorption cooling and desalination systems employing thermally enhanced copper foamed bed coated with SAPO-34 and CPO-27(Ni)

Cited by 18 publications

References 52 publications

Water Vapor Adsorption by Porous Materials: From Chemistry to Practical Applications

Water Vapor Adsorption by Porous Materials: From Chemistry to Practical Applications

Enhancing Adsorption Ice Maker Productivity using Beds of Aluminium Foam Packed with Activated Carbon

Implementation of Fluidized Bed Concept to Improve Heat Transfer in Ecological Adsorption Cooling and Desalination Systems

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