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Optimisation of Operation of Adsorption Chiller with Desalination Function

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  • Karol Sztekler

    (Faculty of Energy and Fuels, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland)

Abstract

The demand for electricity is growing rapidly along with economic development and increasing population. At present, its production is mainly based on non-renewable sources, which has negative impacts on the environment and contributes to global warming. A large proportion of the produced electricity is consumed by refrigeration equipment. Climate change and the progress of civilisation are additionally increasing the demand for cooling, with increasing electricity consumption as a consequence. One of the options for obtaining eco-friendly cooling is the use of adsorption chillers. These devices are powered by low-temperature heat and their operation only requires a small amount of electrical energy. The source of low-temperature heat can be, e.g., waste heat generated in many industrial processes. Its use allows one to increase energy efficiency and achieve additional financial benefits. However, adsorption chillers are characterised by low coefficients of performance. This paper presents possibilities to improve their performance. It also presents the results of tests carried out on a three-bed adsorption chiller with desalination function. The aim of the investigation was to determine the effect of the cycle time on the coefficient of performance (COP) and specific cooling power (SCP). The working pair was silica gel and water. The results confirmed the effect of the duration of adsorption and desorption on the COP and SCP of the adsorption chiller. Increasing the duration of the cycle led to an increase in the COP.

Suggested Citation

  • Karol Sztekler, 2021. "Optimisation of Operation of Adsorption Chiller with Desalination Function," Energies, MDPI, vol. 14(9), pages 1-20, May.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:9:p:2668-:d:549693
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    References listed on IDEAS

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    1. Karol Sztekler & Wojciech Kalawa & Lukasz Mika & Jaroslaw Krzywanski & Karolina Grabowska & Marcin Sosnowski & Wojciech Nowak & Tomasz Siwek & Artur Bieniek, 2020. "Modeling of a Combined Cycle Gas Turbine Integrated with an Adsorption Chiller," Energies, MDPI, vol. 13(3), pages 1-12, January.
    2. Karol Sztekler & Wojciech Kalawa & Łukasz Mika & Agata Mlonka-Medrala & Marcin Sowa & Wojciech Nowak, 2021. "Effect of Additives on the Sorption Kinetics of a Silica Gel Bed in Adsorption Chiller," Energies, MDPI, vol. 14(4), pages 1-13, February.
    3. Karol Sztekler & Wojciech Kalawa & Wojciech Nowak & Lukasz Mika & Slawomir Gradziel & Jaroslaw Krzywanski & Ewelina Radomska, 2020. "Experimental Study of Three-Bed Adsorption Chiller with Desalination Function," Energies, MDPI, vol. 13(21), pages 1-13, November.
    4. Mauro Luberti & Chiara Di Santis & Giulio Santori, 2020. "Ammonia/Ethanol Mixture for Adsorption Refrigeration," Energies, MDPI, vol. 13(4), pages 1-18, February.
    5. Fernandes, M.S. & Brites, G.J.V.N. & Costa, J.J. & Gaspar, A.R. & Costa, V.A.F., 2014. "Review and future trends of solar adsorption refrigeration systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 39(C), pages 102-123.
    6. Grabowska, Karolina & Krzywanski, Jaroslaw & Nowak, Wojciech & Wesolowska, Marta, 2018. "Construction of an innovative adsorbent bed configuration in the adsorption chiller - Selection criteria for effective sorbent-glue pair," Energy, Elsevier, vol. 151(C), pages 317-323.
    7. Choudhury, Biplab & Saha, Bidyut Baran & Chatterjee, Pradip K. & Sarkar, Jyoti Prakas, 2013. "An overview of developments in adsorption refrigeration systems towards a sustainable way of cooling," Applied Energy, Elsevier, vol. 104(C), pages 554-567.
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    3. Bartlomiej Nalepa & Tomasz Halon, 2021. "Recommendations for Running a Tandem of Adsorption Chillers Connected in Series and Powered by Low-Temperature Heat from District Heating Network," Energies, MDPI, vol. 14(16), pages 1-17, August.
    4. João M. S. Dias & Vítor A. F. Costa, 2021. "Modeling and Analysis of a Coated Tube Adsorber for Adsorption Heat Pumps," Energies, MDPI, vol. 14(21), pages 1-19, October.
    5. Karol Sztekler & Wojciech Kalawa & Łukasz Mika & Marcin Sowa, 2021. "Effect of Metal Additives in the Bed on the Performance Parameters of an Adsorption Chiller with Desalination Function," Energies, MDPI, vol. 14(21), pages 1-27, November.

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