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Study on the adsorption characteristics of Maxsorb Ⅲ/HFO-1234ze(E) pair for adsorption refrigeration applications.
Author(s) : YE L., ISLAM A., RUPAM T. H., JAHAN I.
Type of article: IJR article
Summary
HFOs are currently being adopted for adsorption refrigeration applications due to their zero ozone depletion potential and paltry global warming potential. In this study, a constant volume variable pressure (CVVP) system is designed and built to experimentally investigate the adsorption characteristics of HFO-1234ze(E) onto Maxsorb III. Experiments were performed to obtain refrigerant uptakes at adsorption temperatures of 30, 40, and 50°C at variable refrigerant pressures. The maximum experimental adsorption uptake is 1.73 kg·kg–1 at 0.607 relative pressure. The uptake starts to increase sharply from 0.01 relative pressure and slows down at 0.2 relative pressure. The experimental adsorption isotherm data were correlated with Tóth and Dubinin-Astakhov (D–A) adsorption isotherm models. Uptake difference based on Tóth and D–A adsorption model at possible working temperature has been simulated. Isosteric heats of adsorption were determined from Clausius–Clapeyron relation, and their dependence on uptake was also analyzed and reported. Additionally, the specific cooling effects and coefficient of performance are investigated. These findings are crucial for the system performance assessment of a practical adsorption refrigeration system.
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Details
- Original title: Study on the adsorption characteristics of Maxsorb Ⅲ/HFO-1234ze(E) pair for adsorption refrigeration applications.
- Record ID : 30030905
- Languages: English
- Subject: HFCs alternatives
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 146
- Publication date: 2023/02
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2022.11.005
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Indexing
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Themes:
HFO et HCFO;
Absorption and adsorption systems - Keywords: Adsorption system; HFO; R1234ze(E); Expérimentation; Modelling; Optimization
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