IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v185y2019icp1298-1313.html
   My bibliography  Save this article

Deep coaxial borehole heat exchanger: Analytical modeling and thermal analysis

Author

Listed:
  • Luo, Yongqaing
  • Guo, Hongshan
  • Meggers, Forrest
  • Zhang, Ling

Abstract

Borehole heat exchangers (BHEs) are often used to harvest geothermal energy at shallower depths. The standard increase in temperature with depth is generally ignored. Without high quality electricity generation as with enhanced geothermal systems (EGS) there is a lack of financial incentive for drilling deeper for higher temperatures. This temperature increase, or geothermal gradient, is rarely captured by analytical BHE models for building heating and cooling. In this paper we present a new analytical model for a coaxial borehole heat exchanger (CBHE) that specifically considers geothermal gradient. We first verify our model output by comparing results with existing numerical and experimental results under the same configuration of CBHE. To further investigate our model's sensitivity towards fluid flow direction, geothermal gradient, and borehole thermal resistance, we also compare the temperature distributions and rate of heat gain/loss along the flow direction within the entire proposed CBHE. We identify the best flow direction with annulus as inlet in heat extraction mode, confirm positive influence of increasing geothermal gradients towards the heat extraction, and confirm a nonlinear correlation between the borehole thermal resistance with the output fluid temperature and amount of heat extracted. This study can provide a useful analytical simulation tool and important guide to design of CBHE.

Suggested Citation

  • Luo, Yongqaing & Guo, Hongshan & Meggers, Forrest & Zhang, Ling, 2019. "Deep coaxial borehole heat exchanger: Analytical modeling and thermal analysis," Energy, Elsevier, vol. 185(C), pages 1298-1313.
    • Handle: RePEc:eee:energy:v:185:y:2019:i:c:p:1298-1313
    DOI: 10.1016/j.energy.2019.05.228
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S036054421931120X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2019.05.228?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. Wagner, Valentin & Bayer, Peter & Kübert, Markus & Blum, Philipp, 2012. "Numerical sensitivity study of thermal response tests," Renewable Energy, Elsevier, vol. 41(C), pages 245-253.
    2. Zanchini, E. & Lazzari, S. & Priarone, A., 2010. "Effects of flow direction and thermal short-circuiting on the performance of small coaxial ground heat exchangers," Renewable Energy, Elsevier, vol. 35(6), pages 1255-1265.
    3. Bandos, Tatyana V. & Campos-Celador, Álvaro & López-González, Luis M. & Sala-Lizarraga, José M., 2014. "Finite cylinder-source model for energy pile heat exchangers: Effects of thermal storage and vertical temperature variations," Energy, Elsevier, vol. 78(C), pages 639-648.
    4. Beier, Richard A. & Acuña, José & Mogensen, Palne & Palm, Björn, 2013. "Borehole resistance and vertical temperature profiles in coaxial borehole heat exchangers," Applied Energy, Elsevier, vol. 102(C), pages 665-675.
    5. Li, Min & Lai, Alvin C.K., 2015. "Review of analytical models for heat transfer by vertical ground heat exchangers (GHEs): A perspective of time and space scales," Applied Energy, Elsevier, vol. 151(C), pages 178-191.
    6. Pahud, D. & Belliardi, M. & Caputo, P., 2012. "Geocooling potential of borehole heat exchangers' systems applied to low energy office buildings," Renewable Energy, Elsevier, vol. 45(C), pages 197-204.
    7. Zanchini, E. & Lazzari, S. & Priarone, A., 2010. "Improving the thermal performance of coaxial borehole heat exchangers," Energy, Elsevier, vol. 35(2), pages 657-666.
    8. Gordon, David & Bolisetti, Tirupati & Ting, David S-K. & Reitsma, Stanley, 2018. "Experimental and analytical investigation on pipe sizes for a coaxial borehole heat exchanger," Renewable Energy, Elsevier, vol. 115(C), pages 946-953.
    9. De Carli, Michele & Tonon, Massimo & Zarrella, Angelo & Zecchin, Roberto, 2010. "A computational capacity resistance model (CaRM) for vertical ground-coupled heat exchangers," Renewable Energy, Elsevier, vol. 35(7), pages 1537-1550.
    10. Holmberg, Henrik & Acuña, José & Næss, Erling & Sønju, Otto K., 2016. "Thermal evaluation of coaxial deep borehole heat exchangers," Renewable Energy, Elsevier, vol. 97(C), pages 65-76.
    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. Somogyi, Viola & Sebestyén, Viktor & Nagy, Georgina, 2017. "Scientific achievements and regulation of shallow geothermal systems in six European countries – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 68(P2), pages 934-952.
    2. Javadi, Hossein & Mousavi Ajarostaghi, Seyed Soheil & Rosen, Marc A. & Pourfallah, Mohsen, 2019. "Performance of ground heat exchangers: A comprehensive review of recent advances," Energy, Elsevier, vol. 178(C), pages 207-233.
    3. Nian, Yong-Le & Cheng, Wen-Long, 2018. "Insights into geothermal utilization of abandoned oil and gas wells," Renewable and Sustainable Energy Reviews, Elsevier, vol. 87(C), pages 44-60.
    4. Liang Zhang & Songhe Geng & Jun Kang & Jiahao Chao & Linchao Yang & Fangping Yan, 2020. "Experimental Study on the Heat Exchange Mechanism in a Simulated Self-Circulation Wellbore," Energies, MDPI, vol. 13(11), pages 1-22, June.
    5. Peng Li & Peng Guan & Jun Zheng & Bin Dou & Hong Tian & Xinsheng Duan & Hejuan Liu, 2020. "Field Test and Numerical Simulation on Heat Transfer Performance of Coaxial Borehole Heat Exchanger," Energies, MDPI, vol. 13(20), pages 1-19, October.
    6. Carotenuto, Alberto & Ciccolella, Michela & Massarotti, Nicola & Mauro, Alessandro, 2016. "Models for thermo-fluid dynamic phenomena in low enthalpy geothermal energy systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 330-355.
    7. Beier, Richard A. & Spitler, Jeffrey D., 2016. "Weighted average of inlet and outlet temperatures in borehole heat exchangers," Applied Energy, Elsevier, vol. 174(C), pages 118-129.
    8. Acuña, José & Palm, Björn, 2013. "Distributed thermal response tests on pipe-in-pipe borehole heat exchangers," Applied Energy, Elsevier, vol. 109(C), pages 312-320.
    9. Ana Vieira & Maria Alberdi-Pagola & Paul Christodoulides & Saqib Javed & Fleur Loveridge & Frederic Nguyen & Francesco Cecinato & João Maranha & Georgios Florides & Iulia Prodan & Gust Van Lysebetten , 2017. "Characterisation of Ground Thermal and Thermo-Mechanical Behaviour for Shallow Geothermal Energy Applications," Energies, MDPI, vol. 10(12), pages 1-51, December.
    10. Shen, Junhao & Zhou, Chaohui & Luo, Yongqiang & Tian, Zhiyong & Zhang, Shicong & Fan, Jianhua & Ling, Zhang, 2023. "Comprehensive thermal performance analysis and optimization study on U-type deep borehole ground source heat pump systems based on a new analytical model," Energy, Elsevier, vol. 274(C).
    11. Oh, Kwanggeun & Lee, Seokjae & Park, Sangwoo & Han, Shin-In & Choi, Hangseok, 2019. "Field experiment on heat exchange performance of various coaxial-type ground heat exchangers considering construction conditions," Renewable Energy, Elsevier, vol. 144(C), pages 84-96.
    12. Lee, Seokjae & Park, Sangwoo & Kang, Minkyu & Oh, Kwanggeun & Choi, Hangseok, 2022. "Effect of tube-in-tube configuration on thermal performance of coaxial-type ground heat exchanger," Renewable Energy, Elsevier, vol. 197(C), pages 518-527.
    13. Zhen Zhao & Guangxiong Qin & Huijuan Chen & Linchao Yang & Songhe Geng & Ronghua Wen & Liang Zhang, 2022. "Numerical Simulation and Economic Evaluation of Wellbore Self-Circulation for Heat Extraction Using Cluster Horizontal Wells," Energies, MDPI, vol. 15(9), pages 1-26, April.
    14. Gordon, David & Bolisetti, Tirupati & Ting, David S-K. & Reitsma, Stanley, 2017. "A physical and semi-analytical comparison between coaxial BHE designs considering various piping materials," Energy, Elsevier, vol. 141(C), pages 1610-1621.
    15. Quirosa, Gonzalo & Torres, Miguel & Becerra, José A. & Jiménez-Espadafor, Francisco J. & Chacartegui, Ricardo, 2023. "Energy analysis of an ultra-low temperature district heating and cooling system with coaxial borehole heat exchangers," Energy, Elsevier, vol. 278(PA).
    16. Dai, Jiacheng & Li, Jingbin & Wang, Tianyu & Zhu, Liying & Tian, Kangjian & Chen, Zhaoting, 2023. "Thermal performance analysis of coaxial borehole heat exchanger using liquid ammonia," Energy, Elsevier, vol. 263(PE).
    17. Angelo Zarrella & Giuseppe Emmi & Samantha Graci & Michele De Carli & Matteo Cultrera & Giorgia Dalla Santa & Antonio Galgaro & David Bertermann & Johannes Müller & Luc Pockelé & Giulia Mezzasalma & D, 2017. "Thermal Response Testing Results of Different Types of Borehole Heat Exchangers: An Analysis and Comparison of Interpretation Methods," Energies, MDPI, vol. 10(6), pages 1-18, June.
    18. Cui, Yuanlong & Zhu, Jie & Twaha, Ssennoga & Riffat, Saffa, 2018. "A comprehensive review on 2D and 3D models of vertical ground heat exchangers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 94(C), pages 84-114.
    19. Raymond, Jasmin & Lamarche, Louis & Malo, Michel, 2015. "Field demonstration of a first thermal response test with a low power source," Applied Energy, Elsevier, vol. 147(C), pages 30-39.
    20. Holmberg, Henrik & Acuña, José & Næss, Erling & Sønju, Otto K., 2016. "Thermal evaluation of coaxial deep borehole heat exchangers," Renewable Energy, Elsevier, vol. 97(C), pages 65-76.

    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:energy:v:185:y:2019:i:c:p:1298-1313. 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/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.