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Feasibility of Grey Water Heat Recovery in Indoor Swimming Pools

Author

Listed:
  • Joanna Liebersbach

    (Faculty of Environmental Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland)

  • Alina Żabnieńska-Góra

    (Faculty of Environmental Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland)

  • Iwona Polarczyk

    (Faculty of Environmental Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland)

  • Marderos Ara Sayegh

    (Faculty of Environmental Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland)

Abstract

Swimming pools are used around the world for recreational, rehabilitation and physical activity. From an energy and environmental standpoint, grey water as a waste thermal potential of swimming pools is a valuable heat source produced continuously in extensive, measurable and large quantities. The main objective of this article is to analyse the feasibility of proposed grey water heat recovery (GWHR) system from the showers and backwater from swimming pool filters for an indoor pool located in recreation centre in Poland. Analysis, calculations and results were obtained and discussions of water and energy consumption were carried out for the mentioned indoor swimming pool on the basis of real measurements case study for water flow rate, water temperature in swimming pools and showers. The results ensure a significant potential of energy savings by using the proposed GWHR system, which allows to reduce the energy demand by 34% up to 67% for pool water preheating and domestic hot water (DHW). The environmental impact of proposed GWHR system was analysed and calculated by using Common Air Quality Index. Environmental results are illustrated and discussed specially for the reduction of CO 2 , NO X , SO X emissions and dust and ensure a significant reduction of these pollutants in range of 34% to 48%.

Suggested Citation

  • Joanna Liebersbach & Alina Żabnieńska-Góra & Iwona Polarczyk & Marderos Ara Sayegh, 2021. "Feasibility of Grey Water Heat Recovery in Indoor Swimming Pools," Energies, MDPI, vol. 14(14), pages 1-41, July.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:14:p:4221-:d:593338
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    References listed on IDEAS

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    Cited by:

    1. Nikolaos Papadakis & Dimitrios Al. Katsaprakakis, 2023. "A Review of Energy Efficiency Interventions in Public Buildings," Energies, MDPI, vol. 16(17), pages 1-34, August.
    2. Sabina Kordana-Obuch & Mariusz Starzec & Daniel Słyś, 2021. "Assessment of the Feasibility of Implementing Shower Heat Exchangers in Residential Buildings Based on Users’ Energy Saving Preferences," Energies, MDPI, vol. 14(17), pages 1-30, September.
    3. Dimitris A. Katsaprakakis & Nikos Papadakis & Efi Giannopoulou & Yiannis Yiannakoudakis & George Zidianakis & Michalis Kalogerakis & George Katzagiannakis & Eirini Dakanali & George M. Stavrakakis & A, 2023. "Rational Use of Energy in Sports Centres to Achieve Net Zero: The SAVE Project (Part A)," Energies, MDPI, vol. 16(10), pages 1-41, May.
    4. Sabina Kordana-Obuch & Mariusz Starzec & Michał Wojtoń & Daniel Słyś, 2023. "Greywater as a Future Sustainable Energy and Water Source: Bibliometric Mapping of Current Knowledge and Strategies," Energies, MDPI, vol. 16(2), pages 1-34, January.
    5. Edyta Łaskawiec, 2023. "Quality Assessment of Sludge from Filter Backwash Water in Swimming Pool Facilities," Sustainability, MDPI, vol. 15(3), pages 1-18, January.

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