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Performance Improvement of a Solar-Assisted Absorption Cooling System Integrated with Latent Heat Thermal Energy Storage

Author

Listed:
  • Lana Migla

    (Department of Heat Engineering and Technology, Riga Technical University, Kipsalas Street 6A, LV-1048 Riga, Latvia)

  • Raimonds Bogdanovics

    (Department of Heat Engineering and Technology, Riga Technical University, Kipsalas Street 6A, LV-1048 Riga, Latvia)

  • Kristina Lebedeva

    (Department of Heat Engineering and Technology, Riga Technical University, Kipsalas Street 6A, LV-1048 Riga, Latvia)

Abstract

Phase change materials (PCMs) have emerged as promising solutions for latent heat thermal energy storage (LHTES) systems, offering considerable potential for storing energy derived from renewable sources across various engineering applications. The present study focused on optimization of solar cooling system by integrating LHTES with different PCM tank configurations. TRNSYS simulation software was selected for the study, and the collected experimental data from laboratory system prototype were used for system validation. The results indicate that the use of PCM led to a noteworthy decrease of 6.2% in auxiliary energy consumption. Furthermore, the time during which the heat carrier temperature flow exceeded 90 °C from the storage tank to the auxiliary fluid heater was extended by 27.8% when PCM was utilized compared to that of its absence. The use of PCM in LHTES is more effective under variable weather conditions. On the day when changes in weather conditions were observed, around 98% of the cooling load was provided by produced sun energy. The results of the research can be used to optimize the solar cooling system, which will help reduce the environmental impact of cooling systems running on non-renewable fuels.

Suggested Citation

  • Lana Migla & Raimonds Bogdanovics & Kristina Lebedeva, 2023. "Performance Improvement of a Solar-Assisted Absorption Cooling System Integrated with Latent Heat Thermal Energy Storage," Energies, MDPI, vol. 16(14), pages 1-12, July.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:14:p:5307-:d:1191561
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    References listed on IDEAS

    as
    1. Deshko, Valerii & Buyak, Nadia & Bilous, Inna & Voloshchuk, Volodymyr, 2020. "Reference state and exergy based dynamics analysis of energy performance of the “heat source - human - building envelope” system," Energy, Elsevier, vol. 200(C).
    2. Vittorio Tola & Simone Arena & Mario Cascetta & Giorgio Cau, 2020. "Numerical Investigation on a Packed-Bed LHTES System Integrated into a Micro Electrical and Thermal Grid," Energies, MDPI, vol. 13(8), pages 1-15, April.
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