CFD analysis of the effect of bed geometry on H2O adsorption and desorption efficiency

• Autorzy: Janusz Szymon , Borcuch Marcin , Cyklis Piotr

Identyfikatory

DOI

10.24425/ather.2024.151214

• Języki publikacji: EN

Abstrakty

EN

The article presents a comprehensive computational fluid dynamics analysis of the adsorption and desorption cycles in adsorption refrigeration systems, focusing on the impact of the adsorbent bed geometry. The entire adsorption/desorption cycle has been modeled, allowing for the observation of events during the transitional period between processes and how these influence their progression. This approach is a novelty in the field. The developed numerical model was verified against experimental data available in the literature, demonstrating excellent convergence with the experiment, with a deviation not exceeding 2%. The study illustrates how the geometrical parameters such as height and length of the bed affect the efficiency of the adsorption and desorption processes, emphasizing the importance of bed geometry in the adsorption of heat and mass exchangers in energy and adsorbate transfer. The research findings provide valuable insights for designing more efficient cooling devices using adsorption technology, highlighting the role of bed geometry in optimizing these systems. Modeling the entire adsorption/desorption cycle is a novelty and allows for the observation of what happens during the transitional period between processes and how this influences their progression.

Słowa kluczowe

EN

heat transfer; adsorption; computational fluid dynamics; mass transfer; refrigeration devices

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2024
• Tom: Vol. 45, no. 3
• Strony: 39--47
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Janusz Szymon

• Cracow University of Technology, Jana Pawla II 37, 31-864 Kraków, Poland
• M.A.S. Sp z o.o., Research and Development Department, Składowa 34, 27-200 Starachowice, Poland

autor

Borcuch Marcin

• M.A.S. Sp z o.o., Research and Development Department, Składowa 34, 27-200 Starachowice, Poland

autor

Cyklis Piotr

• Cracow University of Technology, Jana Pawla II 37, 31-864 Kraków, Poland

Bibliografia

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• [10] Gamze, I., Hasan, D., Moghtada, M., & Bidyut, S. (2019). A new adsorbent bed design: Optimization of geometric parameters and metal additive for the performance improvement. Applied Thermal Engineering, 162, 114270. doi: 10.1016/j.applthermaleng.2019.114270
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• [12] Bakhshandeh, M., Zarei, T.Z., & Khorshidi, J. (2022). CFD study on Beds of an Adsorption desalination system in order to improve bed performance. Chemical Process Design, 1(2), 60−74. doi:10.22111/CPD.2023.44116.1015
• [13] Boruta, P., Bujok, T., Mika, Ł., & Sztekler, K. (2022). Adsorbents, Working Pairs and Coated Beds for in Adsorption Chillers − State of the Art. Energies, 14(15), 4707. doi: 10.3390/en14154707
• [14] Li, M., Zhao, Y., & Long, R. (2021). Gradient porosity distribution of adsorbent bed for efficient adsorption cooling. International Journal of Refrigeration, 128, 153−162. doi: 10.1016/j.ijrefrig.2021.03.013
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Uwagi

[1] The research was conducted within the framework of the "Industrial Doctorate" program by the Ministry of Education and Science (MEiN) titled "Optimization of adsorption and desorption processes in a cooling device using 3D simulations", carried out at the Cracow University of Technology and the company M.A.S. Ltd., under contract number DWD/6/0534/2022.

[2] Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).