IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v131y2019icp1236-1246.html
   My bibliography  Save this article

Constant temperature response factors for fast calculation of sparse BHE field g-functions

Author

Listed:
  • Fossa, Marco
  • Priarone, Antonella

Abstract

Ground Coupled Heat Pumps (GCHP) are efficient heating systems which mainly rely on the correct design of their ground heat exchangers for attaining the best performance. Such design process is often based on a ground response model which involves the solution of the transient conduction equation. A successful calculation technique for ground response predictions is based on basic thermal response factors also known as g-functions. These solutions can be built according to different boundary conditions and eventually taking into account the variation of the heat rate along the vertical borehole heat exchanger (BHE). The present paper describes a new technique for generating temperature response factors for different BHE field geometries by interrogating a table which provides temperature excess values at different dimensionless distances and times from a single, constant temperature, finite length heat source. In spite this method is not completely suitable for calculating the g-functions of densely packed BHE field in the late period, it is demonstrated that the present procedure is very fast and reliable for calculating the temperature response factors in medium time horizons (e.g. the 10 year deadline of the Ashrae Method) or even in the asymptotic time region of sparse BHE fields.

Suggested Citation

  • Fossa, Marco & Priarone, Antonella, 2019. "Constant temperature response factors for fast calculation of sparse BHE field g-functions," Renewable Energy, Elsevier, vol. 131(C), pages 1236-1246.
    • Handle: RePEc:eee:renene:v:131:y:2019:i:c:p:1236-1246
    DOI: 10.1016/j.renene.2018.07.136
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148118309339
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2018.07.136?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Lazzarotto, Alberto, 2014. "A network-based methodology for the simulation of borehole heat storage systems," Renewable Energy, Elsevier, vol. 62(C), pages 265-275.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Nguyen, A. & Pasquier, P., 2021. "A successive flux estimation method for rapid g-function construction of small to large-scale ground heat exchanger," Renewable Energy, Elsevier, vol. 165(P1), pages 359-368.
    2. Ouazzani Chahidi, Laila & Fossa, Marco & Priarone, Antonella & Mechaqrane, Abdellah, 2021. "Energy saving strategies in sustainable greenhouse cultivation in the mediterranean climate – A case study," Applied Energy, Elsevier, vol. 282(PA).

    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. Dusseault, Bernard & Pasquier, Philippe & Marcotte, Denis, 2018. "A block matrix formulation for efficient g-function construction," Renewable Energy, Elsevier, vol. 121(C), pages 249-260.
    2. Rivera, Jaime A. & Blum, Philipp & Bayer, Peter, 2017. "Increased ground temperatures in urban areas: Estimation of the technical geothermal potential," Renewable Energy, Elsevier, vol. 103(C), pages 388-400.
    3. Anjan Rao Puttige & Staffan Andersson & Ronny Östin & Thomas Olofsson, 2020. "A Novel Analytical-ANN Hybrid Model for Borehole Heat Exchanger," Energies, MDPI, vol. 13(23), pages 1-19, November.
    4. Rivera, Jaime A. & Blum, Philipp & Bayer, Peter, 2016. "A finite line source model with Cauchy-type top boundary conditions for simulating near surface effects on borehole heat exchangers," Energy, Elsevier, vol. 98(C), pages 50-63.
    5. Guo, Y. & Huang, G. & Liu, W.V., 2023. "A new semi-analytical solution addressing varying heat transfer rates for U-shaped vertical borehole heat exchangers in multilayered ground," Energy, Elsevier, vol. 274(C).
    6. Marcotte, D. & Pasquier, P., 2014. "Unit-response function for ground heat exchanger with parallel, series or mixed borehole arrangement," Renewable Energy, Elsevier, vol. 68(C), pages 14-24.
    7. Nilsson, Emil & Rohdin, Patrik, 2019. "Performance evaluation of an industrial borehole thermal energy storage (BTES) project – Experiences from the first seven years of operation," Renewable Energy, Elsevier, vol. 143(C), pages 1022-1034.
    8. Cimmino, Massimo, 2024. "g-Functions for fields of series- and parallel-connected boreholes with variable fluid mass flow rate and reversible flow direction," Renewable Energy, Elsevier, vol. 228(C).

    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:eee:renene:v:131:y:2019:i:c:p:1236-1246. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    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.