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Use of an open absorption heat-pump for energy conservation in a public swimming-pool

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  • Westerlund, L.
  • Dahl, J.

Abstract

A conventional climatization system at a public swimming-pool normally uses outdoor air to remove the moisture from the facility. This practice results in large heat losses. An open absorption heat-pump can dehumidify the outlet air from the building: this makes it possible to recirculate a larger amount of air and so reduce the heating requirement for the facility significantly. Measurements on two types of systems have been performed during approximately 4000 h in a bath house in northern Sweden. In 1990, the use of an open absorption heat-pump decreased the heat supply by 445 MWh (from 742 MWh), while the electricity supply was increased by 233 MWh. The uncertainty in the annual energy saving with the open system can be estimated to be in the range 10-15%. If the present electric energy supply to the generator is replaced by another energy source, for example natural gas, the electricity demand of the absorption system will decrease considerably. The results show that public baths are an interesting application area for the open absorption technique.

Suggested Citation

  • Westerlund, L. & Dahl, J., 1994. "Use of an open absorption heat-pump for energy conservation in a public swimming-pool," Applied Energy, Elsevier, vol. 49(3), pages 275-300.
    • Handle: RePEc:eee:appene:v:49:y:1994:i:3:p:275-300
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    Citations

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    Cited by:

    1. Kampel, Wolfgang & Aas, Bjørn & Bruland, Amund, 2014. "Characteristics of energy-efficient swimming facilities – A case study," Energy, Elsevier, vol. 75(C), pages 508-512.
    2. Johansson, L. & Westerlund, L., 2001. "Energy savings in indoor swimming-pools: comparison between different heat-recovery systems," Applied Energy, Elsevier, vol. 70(4), pages 281-303, December.
    3. Katarzyna Ratajczak & Edward Szczechowiak, 2020. "The Use of a Heat Pump in a Ventilation Unit as an Economical and Ecological Source of Heat for the Ventilation System of an Indoor Swimming Pool Facility," Energies, MDPI, vol. 13(24), pages 1-22, December.
    4. Katarzyna Ratajczak & Edward Szczechowiak & Aneta Pobudkowska, 2023. "Energy-Saving Scenarios of an Existing Swimming Pool with the Use of Simple In Situ Measurement," Energies, MDPI, vol. 16(16), pages 1-25, August.
    5. Li, Yuzhong & Yan, Min & Zhang, Liqiang & Chen, Guifang & Cui, Lin & Song, Zhanlong & Chang, Jingcai & Ma, Chunyuan, 2016. "Method of flash evaporation and condensation – heat pump for deep cooling of coal-fired power plant flue gas: Latent heat and water recovery," Applied Energy, Elsevier, vol. 172(C), pages 107-117.
    6. Wu, Wei & Wang, Baolong & Shi, Wenxing & Li, Xianting, 2014. "Absorption heating technologies: A review and perspective," Applied Energy, Elsevier, vol. 130(C), pages 51-71.
    7. Westerlund, Lars & Hermansson, Roger & Fagerström, Jonathan, 2012. "Flue gas purification and heat recovery: A biomass fired boiler supplied with an open absorption system," Applied Energy, Elsevier, vol. 96(C), pages 444-450.

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