Field-scale experimental and numerical analysis of a downhole coaxial heat exchanger for geothermal energy production

Pokhrel, Sajjan; Sasmito, Agus P.; Sainoki, Atsushi; Tosha, Toshiyuki; Tanaka, Tatsuya; Nagai, Chiaki; Ghoreishi‐Madiseh, Seyed Ali

doi:10.1016/j.renene.2021.10.038

Cited by 40 publications

(9 citation statements)

References 48 publications

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“…These were followed by finite volume methods (FVM) with 18.4%, while the remaining 21.1% of the studies did not report the methods used. CCLGS --Bu et al [30] CCLGS FVM -Focaccia and Tinti [31] CCLGS --Yekoladio et al [32] CCLGS --Templeton et al [33] CCLGS FEM FlexPDE Wight and Bennett [34] CCLGS --Le Lous et al [35] CCLGS FEM FFEFLOW Noorollahi et al [36] CCLGS FVM Ansys Alimonti and Soldo [37] CCLGS --Mokhtari et al [38] CCLGS --Caulk and Tomak [39] CCLGS FEM Comsol Sun et al [40] CCLGS-H FDM -Song et al [25] CCLGS FDM -Shi et al [41] CCLGS FEM Comsol Renaud et al [42] CCLGS FVM Ansys Ghoreishi-Madiseh et al [43] CCLGS FVM Ansys Zhang et al [44] CCLGS FEM Comsol Sun et al [45] CCLGS-H FDM -Wang et al [46] CCLGS-H FDM -Yu et al [47] CCLGS FDM -Yildirim et al [48] CCLGS FEM Comsol Dai et al [49] CCLGS FVM -Hu et al [50] CCLGS FEM Comsol Wang et al [51] CCLGS-H FEM Comsol Hu et al [52] CCLGS FVM T2Well Kalmár et al [53] CCLGS FDM -He et al [54] CCLGS _ -Wang et al [26] CCLGS-H FEM Comsol Wang et al [55] CCLGS-H FEM Comsol Pokhrel et al [56] CCLGS FVM Ansys Sun et al [57] UCLGS FDM -Sun et al [58] UCLGS FDM -Yuan et al [59] UCLGS FDM -Ghavidel et al [60] UCLGS FEM Comsol Fallah et al [61] UCLGS FDM -Zhang et al [62] UCLGS FDM -Note: CCLGS-H-Horizontal CCLGS.…”

Section: Clgss Modelsmentioning

confidence: 99%

A Systematic Review of the Design and Heat Transfer Performance of Enhanced Closed-Loop Geothermal Systems

et al. 2022

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Geothermal energy is one of the primary sources of clean electricity generation as the world transitions away from fossil fuels. In comparison to enhanced geothermal methods based on artificial fracturing, closed-loop geothermal systems (CLGSs) avoid seismicity-induced risk, are independent of reservoir permeability, and do not require the direct interaction between the fluid and the geothermal reservoir. In recent years, the development of CLGS technologies that offer high energy efficiencies has been explored. Research on coaxial closed-loop geothermal systems (CCLGS) and U-shaped closed-loop geothermal system (UCLGS) systems were reviewed in this paper. These studies were categorized based on their design, modeling methods, and heat transfer performance. It was found that UCLGSs had superior heat transfer performances compared to CCLGS. In addition, UCLGSs that utilized CO2 as a working fluid were found to be promising technologies that could help in addressing the future challenges associated with zero-emission compliance and green energy demand. Further research to improve the heat transfer performance of CLGS, especially with regards to improvements in wellbore layout, equipment sizing, and its integration with CO2 capture technologies is critical to ensuring the feasibility of this technology in the future.

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Section: Clgss Modelsmentioning

confidence: 99%

A Systematic Review of the Design and Heat Transfer Performance of Enhanced Closed-Loop Geothermal Systems

et al. 2022

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“…For water injection wells with a vertical well depth of more than 3000 m, the ambient temperature is higher than 100 °C, which lead to the downhole battery cannot be charged. Sp et al and Liu et al generate electricity using downhole thermal energy [ 7 , 8 ]. But their research only stays in the model analysis stage.…”

Section: Introductionmentioning

confidence: 99%

Downhole parameter prediction method based on multi-layer water injection model and historical data-based model parameter identification

Wu,

Hua,

Ren

et al. 2023

Heliyon

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“…In the process of generating electricity with geothermal energy, which is in the clean energy category, the carbon emission problem decreases. 1 On the other hand, geothermal energy has distinct advantages compared to other clean energy types. For example, geothermal energy is not affected by climate types.…”

Section: Introductionmentioning

confidence: 99%

Strategy improvements to minimize the drawbacks of geothermal investments by using spherical fuzzy modelling

Yüksel

Dınçer

Etı

et al. 2022

Intl J of Energy Research

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This study aims to evaluate the significant risks in geothermal energy investments. For this purpose, a model is suggested by considering the Spherical fuzzy DEMATEL technique. With the help of the literature examination, eight important risks are identified for these projects. In the following step, their weights are calculated so that more significant risk issues can be understood.Another calculation is also performed by triangular fuzzy DEMATEL to check the consistency of the analysis results. The results of both Spherical and triangular fuzzy DEMATEL techniques are similar. The most essential risk issues are the same for both methods that demonstrate the validity of the findings.The results indicate that the risk of accidents because of incorrect designmaterial use has the greatest importance since it has the highest weight. Moreover, the risks of decreased water resources and pollution of them also play a significant role in this regard. Great attention should be paid to the quality of the material to be used in geothermal energy facilities. Otherwise, there is a risk of explosion and fire in the facility. These problems threaten the lives of many people. In this process, states also have very important duties. Some standards should be determined for the quality of the material used in these facilities. In addition, the compliance of the quality of these materials with the regulations should be checked with the routine inspections. This situation will minimize the risk of accidents due to using poor-quality materials.

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Field-scale experimental and numerical analysis of a downhole coaxial heat exchanger for geothermal energy production

Cited by 40 publications

References 48 publications

A Systematic Review of the Design and Heat Transfer Performance of Enhanced Closed-Loop Geothermal Systems

A Systematic Review of the Design and Heat Transfer Performance of Enhanced Closed-Loop Geothermal Systems

Downhole parameter prediction method based on multi-layer water injection model and historical data-based model parameter identification

Strategy improvements to minimize the drawbacks of geothermal investments by using spherical fuzzy modelling

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