Showing papers in "Geothermics in 2022"

TL;DR: In this paper, the thermal and structural behavior of the Yingxiu-Beichuan fault at the deeper level within the Sichuan Basin is still unknown, and the authors aim to delineate the thermal structure by employing the geothermal parameters along with the statistical concentration number (C N) model, which has been previously neglected.

TL;DR: In this article , the thermal and structural behavior of the Yingxiu-Beichuan fault at the deeper level within the Sichuan Basin is still unknown, and the authors aim to delineate the thermal structure by employing the geothermal parameters along with the statistical concentration number (CN) model, which has been previously neglected.

TL;DR: In this article , the authors present a technical and economic analysis of closed-loop geothermal systems using a Slender-Body Theory (SBT) model, COMSOL Multiphysics simulator, and the GEOPHIRES analysis tool.

TL;DR: In this paper , the authors show that the European Li-rich brines only follow two Na-Li thermometric relationships and that the main sources of Li are white micas and biotite dissolution.

TL;DR: In this paper , an overview of the previous research on improving the thermal and flow performance of the ground heat exchanger is presented, which is divided into six parts: working fluid, the thermal conductivity of the backfill material and groundwater have the greatest impact on increasing the performance compared to other parameters.

TL;DR: In this paper, an overview of the previous research on improving the thermal and flow performance of the ground heat exchanger is presented, which is divided into six parts: working fluid, the thermal conductivity of the backfill material and groundwater have the greatest impact on increasing the performance compared to other parameters.

TL;DR: In this article , a machine learning model has been proposed to estimate the thermal conductivity of soil using 2,197 samples collected from the US Geological Survey of Central and Eastern United States (USGS).

TL;DR: In this paper , the effects of various operational parameters (maximum flowrate, admissible reservoir-pressure drawdown, borehole diameter) and reservoir parameters (permeability anisotropy and relative permeability curves) on the CO2 and water flow regime in the production well and on the power generation of a CPG system were investigated.

TL;DR: In this paper, the effects of various operational parameters (maximum flowrate, admissible reservoir-pressure drawdown, borehole diameter) and reservoir parameters (permeability anisotropy and relative permeability curves) on the CO2 and water flow regime in the production well and on the power generation of a CPG system were investigated.

TL;DR: The use of geothermal energy has been extensively studied in the literature as discussed by the authors , where the first binary cycle power plant was built at Larderello, Italy with an experimental 10 kWe generator, followed by a 250 kWe commercial unit in 1913.

TL;DR: In this article , the authors highlight the integration of advanced technology on geothermal reservoir performance optimization, which plays a crucial role in the creation of optimum operating conditions at minimized costs, which leads to a more sustainable energy transition towards other energy sources besides petroleum.

TL;DR: In this paper , a semi-analytical model of a distributed thermal response test (DTRT) on vertical boreholes is developed that includes multiple ground layers and the geothermal gradient for deep boreholes.

TL;DR: In this article , the impact of anisotropy within spatially-varying fracture apertures on heat transfer in the context of enhanced geothermal systems was investigated. And the results showed that placing an injector well in the direction perpendicular to shear or slip may result in favorable thermal performance over a parallel flow configuration.

TL;DR: In this paper , an updated analysis of several representative geothermal power plant reference cases of different types and sizes was performed using the Product Environmental Footprint EF 2.0 assessment method, and the final single score of each power plant was also calculated and compared among different plants, as well as with other renewables and national energy mixes.

TL;DR: In this paper , a neural network was used to predict cross-well permeability of intact and fractured core samples collected in EPS1 borehole at the Soultz-sous-Forêts geothermal site (France) using electrical conductivities obtained by 2-D inversion of the magnetotelluric (MT) profile data.

TL;DR: In this article , a hybrid analytical-numerical model for predicting the long-term transient performance of linear ground heat exchanger (HGHE) with various pipe arrangements is proposed.

TL;DR: In this article , a numerical study on the heat extraction performance of the deep borehole heat exchanger is carried out, the model is verified by comparing the obtained results with the experimental or numerical simulation results reported in the literature, and the influences of three thermal boundary conditions on heat output that varies with time were analyzed.

TL;DR: In this paper , the authors collected data from 17 magnetotelluric stations in the Kangding geothermal system and quantitatively estimated the dimensionality of the subsurface structure using the phase tensor.

TL;DR: In this paper , the authors determined the recharge sources, geochemical evolution and secondary reactions during ascending process of geothermal fluid with wellhead temperature of 92 °C in the Dengwu power plant of Fengshun area through analysis of hydrogeochemical and isotopic compositions of both geothermal water and gases.

TL;DR: In this article , a detailed geochemical characterization of the thermal waters is carried out to elucidate the source of the dissolved constituents and also to determine the subsurface reservoir temperature in Arunachal Pradesh geothermal area.

TL;DR: In this article , the authors proposed an intermittent operation as an alternative to minimize the imbalance by altering the ground source heat pump (GSHP) system, and the numerical simulation model that can simultaneously analyze mass and heat transfer in soils was used to accurately analyze the performance of the GSHP system.

TL;DR: In this article , various designs of coaxial DBHEs were numerically simulated and compared for 1 year of continuous operation in a cold sedimentary basin using the FEFLOW software.

TL;DR: In this article, two causes favor the CaCO3 precipitation: changes in thermodynamic conditions (pressure and temperature) and CO2 exsolution, and these two causes are quantified by applying their techniques in some geothermal fields in different locations in the world.

TL;DR: In this article , the authors implemented the braided type of fluvial channels to account for the geological uncertainty, and investigated the subsurface performance metrics of a CO2-plume geothermal (CPG) system with a checkersboard pattern.

TL;DR: In this paper , the development of a graphene-composite cement material for geothermal exploitation, based on the evaluation of thermal conductivity property and its hydration mechanism, was documented.

TL;DR: In this paper , the authors assess the geothermal potential in Northern England for hot dry rocks, with specific focus to the North Pennine and Lake District Batholiths, using an adapted volume method.

TL;DR: In this paper , the fractal dimension of the impact crack has been calculated by the box-counting method to capture the complexity and irregularity of impact crack pattern, which proves that it is feasible to use fractal dimensions to quantitatively evaluate the impact cracks.

TL;DR: In this paper , an acid dissolution experiment has been employed to understand the influence of rock microstructure on the acid etching involving reaction rate, the morphology of acid corrosion, and the embedding strength of a fracture surface.

TL;DR: In this paper , a high-resolution CO2 flux and soil temperature survey was carried out along with detailed fracture parameters measurements in a selected area of the Monterotondo Marittimo-Sasso Pisano transfer fault (Larderello geothermal system, Tuscany, Italy).