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Numerical Investigation of the Coaxial Geothermal Heat Exchanger Performance

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Abstract:

Space heating and cooling using geothermal heat exchangers is a promising environmentally friendly green energy solution. Modeling these energy storage systems is crucial for optimizing their design and operation. In this context, the present study consists of numerically investigating the effects of various physical properties, including thermal conductivity, density, and specific heat capacity of each material, as well as flow velocity, on the process of heat transfer in vertical geothermal heat exchangers using coaxial pipes to optimize their energy performance. Numerical simulations were carried out using Gambit-Fluent software. Different materials that make up the coaxial heat exchanger structure studied were tested to highlight their effects on the progress of heat flux and temperature. Thermal and fluid mechanics aspects were also studied. At the end of this study, a comparative analysis was carried out using the U-tube geothermal heat exchanger. The results indicate that the heat exchanger using a coaxial tube demonstrates superior thermal efficiency compared to the U-tube configuration. It has been found that using a low velocity with an appropriate selection of tube, grout, and soil materials results in enhanced dynamic exchanges, thereby enhancing the thermal efficiency of the geothermal exchanger.

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International Journal of Engineering Research in Africa Vol. 69

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International Journal of Engineering Research in Africa (Volume 69)

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71-90

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https://doi.org/10.4028/p-6ovleZ

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Online since:

May 2024

Authors:

Mohammed Benyoub, Benaoumeur Aour, Abdellatif Oudrane*, Sadek Kaddour

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Finite Volume, Geothermal Energy, Heat Exchanger, Heat Flux, Temperature

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© 2024 Trans Tech Publications Ltd. All Rights Reserved

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[1] H.Yang, P. Cui, Z. Fang, Vertical-borehole ground-coupled heat pumps: a review of models and systems, Appl. Energy, 7(1) (2010) 16-27.

DOI: 10.1016/j.apenergy.2009.04.038

[2] H. Javadi, S.S.M. Ajarostaghi, M.A. Rosen, M. Pourfallah, Performance of ground heat exchangers: a comprehensive review of recent advances, Energy. 178 (2019) 207-233.

DOI: 10.1016/j.energy.2019.04.094

[3] C. Alimonti, E. Soldo, D. Bocchetti, D. Berardi, The wellbore heat exchangers: a technical review, Renew. Energy. 123 (2018) 353-381.

DOI: 10.1016/j.renene.2018.02.055

[4] C. Wang, Y. Lu, L. Chen, Z. Huang, H. Fang, A semi-analytical model for heat transfer in coaxial borehole heat exchangers, Geothermics. 89 (2021) 101952.

DOI: 10.1016/j.geothermics.2020.101952

[5] X. Hu, J. Banks, Y. Guo, G. Huang, W.V. Liu, Effects of temperature-dependent property variations on the output capacity prediction of a deep coaxial borehole heat exchanger, Renew. Energy. 165 (2021) 334-349.

DOI: 10.1016/j.renene.2020.11.020

[6] Y. Luo, H. Guo, F. Meggers, L. Zhang, Deep coaxial borehole heat exchanger: analytical modeling and thermal analysis, Energy. 85 (2019) 1298-1313.

DOI: 10.1016/j.energy.2019.05.228

[7] X. Huang, Z. Yao, H. Cai, W. Xue, and X. Wang, An analytical heat-transfer model for coaxial borehole heat exchanger with segmented method, Energy sources, part a: recovery, utilization, and environmental effects, Taylor & Francis Group, LLC (2020).

DOI: 10.1080/15567036.2020.1851821

[8] J. Li, W. Xu, J. Li, S. Huang, Z. Li, B. Qiao. Heat extraction model and characteristics of coaxial deep borehole heat exchanger, Renew. Energy. 169 (2021) 738-751.

DOI: 10.1016/j.renene.2021.01.036

[9] W. Cai, F. Wang, J. Jiang, Z. Wang, J. Liu and C. Chen, Long-term Performance Evaluation and Economic Analysis for Deep Borehole Heat Exchanger Heating System in Weihe Basin. Front. Earth. Sci. 10 (2022) 806416.

DOI: 10.3389/feart.2022.806416

[10] G.N. Molina, P. Blum, K. Zhu, P. Bayer, Z. Fang, A moving finite line source model to simulate borehole heat exchangers with groundwater advection, Int. J. Therm. Sci. 50(12) (2011) 6-13.

DOI: 10.1016/j.ijthermalsci.2011.06.012

[11] S. Erol, F. Bertrand, Multilayer analytical model for vertical ground heat exchanger with groundwater flow, Geothermics. 71 (2018) 294-305.

DOI: 10.1016/j.geothermics.2017.09.008

[12] A. Pan, L. Lu, P. Cui, L. Jia, A new analytical heat transfer model for deep borehole heat exchangers with coaxial tubes, Int. J. Heat Mass Transf. 141 (2019) 1056-1065.

DOI: 10.1016/j.ijheatmasstransfer.2019.07.041

[13] N.R. Diao, Z.H. Fang. Ground-coupled heat pump technology, Beijing: Higher Education Press (2006), 47-68.

[14] D. Gordon, T. Bolisetti, D.S.K. Ting, S. Reitsma, Experimental and analytical investigation on pipe sizes for a coaxial borehole heat exchanger, Renew. Energy. 115 (2018) 946-953.

DOI: 10.1016/j.renene.2017.08.088

[15] D. Gordon, T. Bolisetti, S.K. Ting, S. Reitsma, A physical and semi-analytical comparison between coaxial BHE designs considering various piping materials, Energy. 141(2018) 1610-1621.

DOI: 10.1016/j.energy.2017.11.001

[16] L. Ma, Y.Z. Zhao, H.M. Yin, J. Zhao, A coupled heat transfer model of medium-depth downhole coaxial heat exchanger based on the piecewise analytical solution, Energy Convers Manag. 204 (2020) 112308.

DOI: 10.1016/j.enconman.2019.112308

[17] S.J. Rees, M. He, A three-dimensional numerical model of borehole heat exchanger heat transfer and fluid flow, Geothermics. 46 (2013) 1-13.

DOI: 10.1016/j.geothermics.2012.10.004

[18] C. Zhang, P. Chen, Y. Liu, S. Sun, D. Peng, An improved evaluation method for thermal performance of borehole heat exchanger, Renew. Energy. 77 (2015) 142-51.

DOI: 10.1016/j.renene.2014.12.015

[19] Y. Zhao, Z. Pang, Y. Huang, and Z. Ma, An efficient hybrid model for thermal analysis of deep borehole heat exchangers, Geotherm. Energy. 8 (2020) 18.

DOI: 10.1186/s40517-020-00170-z

[20] K. Morita, W.S. Bollmeier, H. Mizogami, Analysis of the results from the Downhole Coaxial Heat Exchanger (DCHE) experiment in Hawaii, Geotherm. Resour. Counc. Trans. 16 (1992) 17-23.

[21] L. Fang, N. Diao, Z. Shao, K. Zhu, Z. Fang, A computationally efficient numerical model for heat transfer simulation of deep borehole heat exchangers. Energy Build. 167 (2018) 79-88.

DOI: 10.1016/j.enbuild.2018.02.013

[22] M.S. Saadi, R. Gomri, Investigation of dynamic heat transfer process through coaxial heat exchangers in the ground, Int. J. Hydrog. Energy. 42(28) (2017) 18014-18027.

DOI: 10.1016/j.ijhydene.2017.03.106

[23] C. Chen, H. Shao, D. Naumov, Y. Kong, K. Tu, O. Kolditz, Numerical investigation on the performance, sustainability, and efficiency of the deep borehole heat exchanger system for building heating. Geotherm. Energy. 7(1) (2019) 1-26.

DOI: 10.1186/s40517-019-0133-8

[24] V. Gerlich, K. Sulovská, and M. Zálešák, COMSOL Multiphysics validation as simulation software for heat transfer calculation in buildings: Building simulation software validation. Measurement. 6 (6) (2013) 3-12.

DOI: 10.1016/j.measurement.2013.02.020

[25] E. Zanchini, S. Lazzari, A. Priarone, Improving the thermal performance of coaxial borehole heat exchangers, Energy. 35(2) (2010) 657-666.

DOI: 10.1016/j.energy.2009.10.038

[26] X. Song, G. Wang, Y. Shi, R. Li, Z. Xu, R. Zheng, Y. Wang, J. Li, Numerical analysis of heat extraction performance of a deep coaxial borehole heat exchanger geothermal system, Energy. 164 (2018) 1298-1310.

DOI: 10.1016/j.energy.2018.08.056

[27] Y. Zhang, C. Yu, G. Li, X. Guo, G. Wang, Y. Shi, Performance analysis of a downhole coaxial heat exchanger geothermal system with various working fluids, Appl. Therm. Eng. 163 (2019) 114317.

DOI: 10.1016/j.applthermaleng.2019.114317

[28] X. Hu, J. Banks, L. Wu, and W.V. Liu, Numerical Modeling of a Coaxial Borehole Heat Exchanger to Exploit Geothermal Energy from Abandoned Petroleum wells in Hinton, Alberta. Renew. Energ. 148 (2020) 1110–1123.

DOI: 10.1016/j.renene.2019.09.141

[29] P. Congedo, G. Colangelo, and G. Starace, CFD simulations of horizontal ground heat exchangers: A comparison among different configurations, Appl. Therm.Eng. 33(2012) 24-32.

DOI: 10.1016/j.applthermaleng.2011.09.005

[30] Z. Wang, F. Wang, J. Liu, Z. Ma, E. Han, M. Song, Field test and numerical investigation on the heat transfer characteristics and optimal design of the heat exchangers of a deep borehole ground source heat pump system, Energy Convers. Manag. 153 (2017) 603-615.

DOI: 10.1016/j.enconman.2017.10.038

[31] C. Li, Y. Guan, J. Liu, C. Jiang, R. Yang, and X. Hou. Heat Transfer Performance of a Deep Ground Heat Exchanger for Building Heating in Long-Term Service, Renew. Energ. 166 (2020) 20-34.

DOI: 10.1016/j.renene.2020.11.111

[32] Y. Fujimitsu, K. Fukuoka, S. Ehara, H. Takeshita, F. Abe, Evaluation of subsurface thermal environmental change caused by a ground-coupled heat pump system, Curr. Appl. Phys. 10(2) (2010) 113-116.

DOI: 10.1016/j.cap.2009.11.014

[33] K. Bär, W. Rühaak, B. Welsch, D. Schulte, S. Homuth, and I. Sass, Seasonal high temperature heat storage with medium deep borehole heat exchangers, Energy Procedia. 76 (2015) 351-360.

DOI: 10.1016/j.egypro.2015.07.841

[34] M.L. Lous, F. Larroque, A. Dupuy, A. Moignard, Thermal performance of a deep borehole heat exchanger: insights from a synthetic coupled heat and flow model, Geothermics. 57 (2015) 157-172.

DOI: 10.1016/j.geothermics.2015.06.014

[35] B. Welsch, W. Rühaak, D. O. Schulte, K. Baer, and I. Sass, Characteristics of medium deep borehole thermal energy storage. Int. J. Energy Res. 40(13) (2016) 1855-1868.

DOI: 10.1002/er.3570

[36] M. He, Numerical Modelling of Geothermal Borehole Heat Exchanger Systems, Ph.D Thesis, De Montfort University (2017).

[37] G. Falcone, X. Liu, R. Okech. Assessment of deep geothermal energy exploitation methods: The need for novel single-well solutions, Energy. 160 (2018) 54-63.

DOI: 10.1016/j.energy.2018.06.144

[38] J. Acuña, B. Palm, First experiences with coaxial borehole heat exchangers, Proceedings of the IIR Conference on Sources/Sinks alternative to the outside Air for HPs and AC techniques, (2011).

[39] K. Oh, S. Lee, S. Park, S.I. Han, H. Choi. Field experiment on heat exchange performance of various coaxial-type ground heat exchangers considering construction conditions. Renew. Energy. 144 (2017) 84-96.

DOI: 10.1016/j.renene.2018.10.078

[40] C.S. Brown, N.J. Cassidy, S. Egan, D. Griffiths, Numerical modelling of deep coaxial borehole heat exchangers in the Cheshire Basin, UK, Comput. Geosci. 152 (2021) 104752.

DOI: 10.1016/j.cageo.2021.104752

[41] M. Daneshipour, R. Rafee, Nanofluids as the circuit fluids of the geothermal borehole heat exchangers. Int. Commun. Heat Mass Transf. 81 (2017) 34-41.

DOI: 10.1016/j.icheatmasstransfer.2016.12.002

[42] P.J. Yekoladio, T. Bello-Ochende, J.P. Meyer. Design and optimization of a downhole coaxial heat exchanger for an enhanced geothermal system (EGS). Renew. Energy. 55 (2013) 128-137.

DOI: 10.1016/j.renene.2012.11.035

[43] H. Holmberg, J. Acuña, E. Næss, and O. K. Sønju. Thermal evaluation of coaxial deep borehole heat exchangers. Renew. energy. 97 (2016) 65-76.

DOI: 10.1016/j.renene.2016.05.048

[44] H. Mokhtari, H. Hadiannasab, M. Mostafavi, A. Ahmadibeni, and B. Shahriari, Determination of optimum geothermal Rankine cycle parameters utilizing coaxial heat exchanger, Energy. 102 (2016) 260-275.

DOI: 10.1016/j.energy.2016.02.067

[45] L. Dijkshoorn, S. Speer, R. Pechnig, Measurements and design calculations for a deep coaxial borehole heat exchanger in Aachen, Germany. Int. J. Geophys. (2013) ID 916541.

DOI: 10.1155/2013/916541

[46] T. Sliwa, and M.A. Rosen, Efficiency analysis of borehole heat exchangers as grout varies via thermal response test simulations, Geothermics. 69 (2017) 132-138.

DOI: 10.1016/j.geothermics.2017.05.004

[47] S. Iry, and R. Rafee, Transient numerical simulation of the coaxial borehole heat exchanger with the different diameters ratio, Geothermics. 77 (2019) 158-165.

DOI: 10.1016/j.geothermics.2018.09.009

[48] A. El Jery, A.K. Khudhair, S.Q. Abbas, A.M. Abed and K.M. Khedher, Numerical simulation and artificial neural network prediction of hydrodynamic and heat transfer in a geothermal heat exchanger to obtain the optimal diameter of tubes with the lowest entropy using water andAl2O3/water nanofluid, Geothermics. 107 (2023) 102605.

DOI: 10.1016/j.geothermics.2022.102605

[49] C. Yavuzurk, J. Spitler, S. Rees. A transient two-dimensional finite volume model for the simulation of vertical u-tube ground heat exchanger, ASHRAE Trans. 105 (1999) 462-474.

[50] M. Benyoub, B. Aour, B. Bouhacina, K. Sadek, Numerical Investigation of the Physical Properties Effect on the Thermal Performance of a Vertical Geothermal Heat Exchanger, Eng. Technol. Appl. Sci. Res. 8(2) (2018) 2715-2723.

DOI: 10.48084/etasr.1827

[51] B. Bouhacina, R. Saim, H. Benzenine, H.F. Oztop, Analysis of thermal and dynamic comportment of a geothermal vertical U-tube heat exchanger, Energy Build. 58 (2013) 37-43.

DOI: 10.1016/j.enbuild.2012.11.037

[52] E.J. Kim, J. Roux, G. Rusaouen, F. Kuznik. Numerical modelling of geothermal vertical heat exchangers for the short time analysis using the state model size reduction technique, Appl. Therm. Eng. 30(6-7) (2010) 706-714.

DOI: 10.1016/j.applthermaleng.2009.11.019

[53] A. Jalaluddin and Miyara, Thermal performance investigation of several types of vertical ground heat exchangers with different operation mode, Appl. Therm. Eng. 33-34 (2012) 167-174.

DOI: 10.1016/j.applthermaleng.2011.09.030

[54] R. Al-Khoury, S. Focaccia, A spectral model for transient heat flow in a double U-tube geothermal heat pump system, Renew. Energ. 85 (2016) 195-205.

DOI: 10.1016/j.renene.2015.06.031

[55] T.Y. Ozudogru, C.G. Olgun, A. Senol, 3D numerical modeling of vertical geothermal heat exchangers, Geothermics. 51 (2014) 312-324.

DOI: 10.1016/j.geothermics.2014.02.005

[56] S.K. Chang, M.J. Kim, Thermal performance evaluation of vertical U-loop ground heat exchanger using in-situ thermal response test, Renew. Energ. 87 (2016) 585-591.

DOI: 10.1016/j.renene.2015.10.059

[57] T.Y. Ozudogru, O. Ghasemi-Fare, C.G. Olgun, P. Basu, Numerical modeling of verticalgeothermal heat exchanger using finite difference and finite element techniques, Geotech. Geol. Eng. 33 (2015) 291-306.

DOI: 10.1007/s10706-014-9822-z

[58] B. Bezyan, S. Porkhial, A. Aboui, Mehrizi, 3-D simulation of heat transfer rate in geothermal pile-foundation heat exchangers with spiral pipe configuration, App. Therm. Eng. 87 (2015) 655-668.

DOI: 10.1016/j.applthermaleng.2015.05.051

[59] L. Zhongjian, A new constant heat flux model for vertical U-tube ground heat exchangers, Energy Build. 45 (2012) 311-316.

DOI: 10.1016/j.enbuild.2011.11.026

[60] A.M. Gustafsson, L. Westerlund, G. Hellström, CFD-modelling of natural convection in a groundwater-filled borehole heat exchanger, App. Therm. Eng. 30 (2010) 683-691.

DOI: 10.1016/j.applthermaleng.2009.11.016