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Novel Adsorption Cycle for High-Efficiency Adsorption Heat Pumps and Chillers: Modeling and Simulation Results

Schwamberger, Valentin; Desai, Aditya; Schmidt, Ferdinand P.

Abstract:
A novel thermodynamic cycle for adsorption heat pumps and chillers is presented. It shows a significant improvement of the internal heat recovery between the adsorption and the desorption half cycle. A stratified thermal storage, which allows for a temperature-based extraction and insertion of storage fluid, is hydraulically coupled with a single adsorber. The benefit is an increased efficiency by reusing the released heat of adsorption for regeneration of the adsorber and by rendering possible low driving temperature differences. For investigating the second law of this cycle, a dynamic model is employed. The transient behavior of the system and the respective losses because of driving temperature differences at the heat exchangers and losses due to mixing within the storage and to the surroundings are depicted in this one-dimensional model. The model is suitable both for analyzing this advanced cycle as well as for comparisons with other cycles.

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Verlagsausgabe §
DOI: 10.5445/IR/1000119068
Veröffentlicht am 06.05.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Thermofluidik (IATF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 1996-1073
KITopen-ID: 1000119068
Erschienen in Energies
Band 13
Heft 1
Seiten Art. Nr.: 19
Vorab online veröffentlicht am 19.12.2019
Schlagwörter adsorption cycle, thermodynamic cycle, heat recovery, stratified thermal storage, adsorption system, modeling, simulation
Nachgewiesen in Scopus
Web of Science
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