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Hybrid Domestic Hot Water System Performance in Industrial Hall

Author

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  • Edyta Dudkiewicz

    (Faculty of Environmental Engineering, Wroclaw University of Science and Technology, Norwida St. 4/6, 50-373 Wrocław, Poland)

  • Natalia Fidorów-Kaprawy

    (Faculty of Environmental Engineering, Wroclaw University of Science and Technology, Norwida St. 4/6, 50-373 Wrocław, Poland)

Abstract

The renewable and waste heat sources implemented for the preparation of domestic hot water (DHW) allow for energy conservation and environment protection along with resource savings and economic benefits. The solutions, including non-conventional sources, are especially demanded in large halls in which energy and water consumption are crucial for maintenance costs. In this article, energy analysis of a DHW preparation system for workers’ hygienic purposes in a industrial hall was performed. The DHW preparation system consisted of three sources: a flue gases heat exchanger as the waste heat source, solar collectors as the renewable heat source and a gas boiler as the conventional source. In the analysis, data of a variable-temperature supply of water and hourly water consumption data from the measurements in the industrial hall, located in Poland, were applied. The results for all of the 8760 h of one year were examined. The analysis outcomes show that implementation of non-conventional sources can supply 81.4% of energy needed for DHW preparation, avoiding a lot of running costs; just 18.6% of heat demand had to be obtained from a gas boiler. The analysis also confirms that the system may operate correctly when the appropriate device size is applied, along with a proper control strategy that avoids overheating water and uses alternative sources.

Suggested Citation

  • Edyta Dudkiewicz & Natalia Fidorów-Kaprawy, 2020. "Hybrid Domestic Hot Water System Performance in Industrial Hall," Resources, MDPI, vol. 9(6), pages 1-12, May.
    • Handle: RePEc:gam:jresou:v:9:y:2020:i:6:p:65-:d:365198
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    References listed on IDEAS

    as
    1. Dudkiewicz, Edyta & Fidorów-Kaprawy, Natalia, 2017. "The energy analysis of a hybrid hot tap water preparation system based on renewable and waste sources," Energy, Elsevier, vol. 127(C), pages 198-208.
    2. Arnaud Reynaud, 2003. "An Econometric Estimation of Industrial Water Demand in France," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 25(2), pages 213-232, June.
    3. Sayegh, M.A. & Danielewicz, J. & Nannou, T. & Miniewicz, M. & Jadwiszczak, P. & Piekarska, K. & Jouhara, H., 2017. "Trends of European research and development in district heating technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 68(P2), pages 1183-1192.
    4. Francisco Javier Díaz Pérez & Ricardo Díaz Martín & Francisco Javier Pérez Trujillo & Moises Díaz & Adib Guardiola Mouhaffel, 2019. "Consumption and Emissions Analysis in Domestic Hot Water Hotels. Case Study: Canary Islands," Sustainability, MDPI, vol. 11(3), pages 1-17, January.
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    Cited by:

    1. Beata Piotrowska & Daniel Słyś, 2023. "Analysis of the Life Cycle Cost of a Heat Recovery System from Greywater Using a Vertical “Tube-in-Tube” Heat Exchanger: Case Study of Poland," Resources, MDPI, vol. 12(9), pages 1-17, August.

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