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Liquid sorption heat storage – A proof of concept based on lab measurements with a novel spiral fined heat and mass exchanger design

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  • Fumey, B.
  • Weber, R.
  • Baldini, L.

Abstract

This paper presents a practical study towards the development of a heat and mass exchanger fitting to liquid absorption heat storage for building application. Results of a lab scale setup are shown. To reach high heat capacity in absorption storage, a maximum temperature gain and concentration difference is mandatory. A conventional spiral fined tube heat exchanger is employed as heat and mass exchanger, whereby the tube is installed vertically and the absorbent flows slowly along the fin from top to bottom due to gravitational force. Sufficient time is given for absorption and heat release. Operating with sodium hydroxide as absorbent, a temperature lift of 35K measured between maximum absorbent temperature and absorbate temperature as well as dilution from 50wt% to 27wt% in one continuous process step is attained in absorption. During desorption, a concentration lift from 25wt% to 53wt% at a temperature spread of 44K between desorber and condenser is reached. In relation to the concentration difference, a theoretical energy density of 435kWh/m3 in respect to the discharged absorbent is reached. This development enables compact, lossless, long term heat storage suitable for space heating and domestic hot water.

Suggested Citation

  • Fumey, B. & Weber, R. & Baldini, L., 2017. "Liquid sorption heat storage – A proof of concept based on lab measurements with a novel spiral fined heat and mass exchanger design," Applied Energy, Elsevier, vol. 200(C), pages 215-225.
    • Handle: RePEc:eee:appene:v:200:y:2017:i:c:p:215-225
    DOI: 10.1016/j.apenergy.2017.05.056
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    Cited by:

    1. Aydin, Devrim & Casey, Sean P. & Chen, Xiangjie & Riffat, Saffa, 2018. "Numerical and experimental analysis of a novel heat pump driven sorption storage heater," Applied Energy, Elsevier, vol. 211(C), pages 954-974.
    2. Jalal Faraj & Khaled Chahine & Mostafa Mortada & Thierry Lemenand & Haitham S. Ramadan & Mahmoud Khaled, 2022. "Eco-Efficient Vehicle Cooling Modules with Integrated Diffusers—Thermal, Energy, and Environmental Analyses," Energies, MDPI, vol. 15(21), pages 1-19, October.
    3. Fumey, Benjamin & Weber, Robert & Baldini, Luca, 2023. "Heat transfer constraints and performance mapping of a closed liquid sorption heat storage process," Applied Energy, Elsevier, vol. 335(C).
    4. Le Pierrès, Nolwenn & Huaylla, Fredy & Stutz, Benoit & Perraud, Julien, 2017. "Long-term solar heat storage process by absorption with the KCOOH/H2O couple: Experimental investigation," Energy, Elsevier, vol. 141(C), pages 1313-1323.
    5. Yujie Su & Yi Yang & Guoqing He & Renhua Liu & De Ding, 2024. "Two-Stage Solar–NaOH Thermochemical Heat Pump Heating System for Building Heating: Operations Strategies and Theoretical Performance," Energies, MDPI, vol. 17(8), pages 1-16, April.
    6. Englmair, Gerald & Moser, Christoph & Schranzhofer, Hermann & Fan, Jianhua & Furbo, Simon, 2019. "A solar combi-system utilizing stable supercooling of sodium acetate trihydrate for heat storage: Numerical performance investigation," Applied Energy, Elsevier, vol. 242(C), pages 1108-1120.
    7. Fumey, B. & Weber, R. & Baldini, L., 2019. "Sorption based long-term thermal energy storage – Process classification and analysis of performance limitations: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 111(C), pages 57-74.
    8. Englmair, Gerald & Moser, Christoph & Furbo, Simon & Dannemand, Mark & Fan, Jianhua, 2018. "Design and functionality of a segmented heat-storage prototype utilizing stable supercooling of sodium acetate trihydrate in a solar heating system," Applied Energy, Elsevier, vol. 221(C), pages 522-534.
    9. Benjamin Fumey & Luca Baldini, 2021. "Static Temperature Guideline for Comparative Testing of Sorption Heat Storage Systems for Building Application," Energies, MDPI, vol. 14(13), pages 1-15, June.
    10. Tzinnis, Efstratios & Baldini, Luca, 2021. "Combining sorption storage and electric heat pumps to foster integration of solar in buildings," Applied Energy, Elsevier, vol. 301(C).
    11. Xiaofeng Guo & Alain Pascal Goumba & Cheng Wang, 2019. "Comparison of Direct and Indirect Active Thermal Energy Storage Strategies for Large-Scale Solar Heating Systems," Energies, MDPI, vol. 12(10), pages 1-18, May.
    12. Luca Baldini & Benjamin Fumey, 2020. "Seasonal Energy Flexibility Through Integration of Liquid Sorption Storage in Buildings," Energies, MDPI, vol. 13(11), pages 1-13, June.
    13. Hamza Ayaz & Veerakumar Chinnasamy & Junhyeok Yong & Honghyun Cho, 2021. "Review of Technologies and Recent Advances in Low-Temperature Sorption Thermal Storage Systems," Energies, MDPI, vol. 14(19), pages 1-36, September.
    14. Palomba, Valeria & Sapienza, Alessio & Aristov, Yuri, 2019. "Dynamics and useful heat of the discharge stage of adsorptive cycles for long term thermal storage," Applied Energy, Elsevier, vol. 248(C), pages 299-309.

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