IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2020i1p90-d468709.html
   My bibliography  Save this article

Determination of Heat Losses from the Pipeline in SDHW System during the Continuous Change of the Supply Temperature

Author

Listed:
  • Miroslaw Zukowski

    (Department of HVAC Engineering, Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska 45E Street, 15-351 Bialystok, Poland)

Abstract

In this article, the research object is the solar domestic hot water (SDHW) heating system that has been in operation since 2015 and is located on the campus of the Bialystok University of Technology (Poland). The thermal performance of solar collectors are thoroughly investigated so far. Therefore, special attention was paid to the issue of the heat loss from pipes. The measurements showed that the heat transfer in circulation pipes is quite complex due to continuous fluctuations in water temperature at the supply of this loop. As it turned out, the application of the classical method of energy balancing and the readings from heat meters gave inaccurate results in this case. The main aim of this study was to develop a different approach to solving the problem of determination of heat losses. The method presented in this article is based on computational fluid dynamics (CFD) and measurement results as the input data. The practical result of this study was the development of two relationships for calculating the heat loss from pipes. A separate issue, that is discussed in this paper, concerns the impact of the time intervals used in numerical simulations on the accuracy of calculation results.

Suggested Citation

  • Miroslaw Zukowski, 2020. "Determination of Heat Losses from the Pipeline in SDHW System during the Continuous Change of the Supply Temperature," Energies, MDPI, vol. 14(1), pages 1-21, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:90-:d:468709
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/1/90/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/1/90/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Zaaoumi, Anass & Asbik, Mohamed & Hafs, Hajar & Bah, Abdellah & Alaoui, Mohammed, 2021. "Thermal performance simulation analysis of solar field for parabolic trough collectors assigned for ambient conditions in Morocco," Renewable Energy, Elsevier, vol. 163(C), pages 1479-1494.
    2. El-Nashar, Ali M., 2006. "Heat loss through the piping of a large solar collector field," Energy, Elsevier, vol. 31(12), pages 2020-2035.
    3. Deeble, V. C., 1994. "Effectiveness of PVC coatings as thermal insulation for domestic hot-water piping," Applied Energy, Elsevier, vol. 48(1), pages 51-64.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Lugo, S. & García-Valladares, O. & Best, R. & Hernández, J. & Hernández, F., 2019. "Numerical simulation and experimental validation of an evacuated solar collector heating system with gas boiler backup for industrial process heating in warm climates," Renewable Energy, Elsevier, vol. 139(C), pages 1120-1132.
    2. Chater, Hamza & Asbik, Mohamed & Mouaky, Ammar & Koukouch, Abdelghani & Belandria, Veronica & Sarh, Brahim, 2023. "Experimental and CFD investigation of a helical coil heat exchanger coupled with a parabolic trough solar collector for heating a batch reactor: An exergy approach," Renewable Energy, Elsevier, vol. 202(C), pages 1507-1519.
    3. Martínez-Rodríguez, Guillermo & Fuentes-Silva, Amanda L. & Picón-Núñez, Martín, 2018. "Solar thermal networks operating with evacuated-tube collectors," Energy, Elsevier, vol. 146(C), pages 26-33.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:90-:d:468709. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.