Most Recent Articles: Geothermal Energy Most Recent Articles: Geothermal Energy
- Feasibility of coaxial deep borehole heat exchangers in southern Californiaby Haohua Chen and Ingrid Tomac on November 1, 2024 at 12:00 am
This paper investigates the feasibility of coaxial deep borehole heat exchanger (CDBHE) applications to the University of California San Diego (UCSD) campus. By collecting different geophysical source data for...
- Controls of low injectivity caused by interaction of reservoir and clogging processes in a sedimentary geothermal aquifer (Mezőberény, Hungary)by Ábel Markó, Maren Brehme, Daniele Pedretti, Günter Zimmermann and Ernst Huenges on October 22, 2024 at 12:00 am
Low injectivity is often experienced in geothermal doublets installed in sandstone reservoirs. This even led to a shutdown of the Mezőberény (Hungary) geothermal site. An on-site campaign was carried out in Ja...
- Density of pure and mixed NaCl and CaCl2 aqueous solutions at 293 K to 353 K and 0.1 MPa: an integrated comparison of analytical and numerical databy Ulrike Hoffert, Laurent André, Guido Blöcher, Sylvain Guignot, Arnault Lassin, Harald Milsch and Ingo Sass on October 19, 2024 at 12:00 am
This study reports on newly acquired density data of synthetically prepared pure and mixed NaCl and CaCl2 aqueous solutions that span a wide range of geothermally encountered concentrations and mixing ratios. The...
- Modeling unobserved geothermal structures using a physics-informed neural network with transfer learning of prior knowledgeby Akihiro Shima, Kazuya Ishitsuka, Weiren Lin, Elvar K. Bjarkason and Anna Suzuki on October 8, 2024 at 12:00 am
Deep learning has gained attention as a potentially powerful technique for modeling natural-state geothermal systems; however, its physical validity and prediction inaccuracy at extrapolation ranges are limiti...
- Methods of grout quality measurement in borehole exchangers for heat pumps and their rehabilitationby Petr Nakládal, Martin Procházka, Viktor Goliáš and Jaromíra Hrdá on October 6, 2024 at 12:00 am
Methods and instrumentation for measuring grout quality in heat pump boreholes, including the measurement of groundwater flow through boreholes outside partly grouted borehole exchanger pipes, have been develo...