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  1. In this paper, the inefficiency of the studied energy conversion system is identified to reduce losses and improve performance. A conventional exergy analysis has limitations that it is not able to detect and ...

    Authors: Xianzhi Tang, Gongxing Yan, Azher M. Abed, Aman Sharma, Elsayed Tag-Eldin, Yashar Aryanfar and Jorge Luis García Alcaraz
    Citation: Geothermal Energy 2022 10:16
  2. Solutions for seasonal energy storage systems are essential for the reliable use of fluctuating renewable energy sources. As part of the research project SKEWS, a medium deep borehole thermal energy storage sy...

    Authors: Lukas Seib, Bastian Welsch, Claire Bossennec, Matthis Frey and Ingo Sass
    Citation: Geothermal Energy 2022 10:15
  3. The Molasse Basin is one of the most promising areas for deep geothermal exploitation in Germany and the target horizon is the aquifer in the Upper Jurassic carbonates. Carbonate deposits can be very heterogen...

    Authors: Sonja Halina Wadas and Hartwig von Hartmann
    Citation: Geothermal Energy 2022 10:13
  4. The energy sector is undergoing a fundamental transformation, with a significant investment in low-carbon technologies to replace fossil-based systems. In densely populated urban areas, deep boreholes offer an...

    Authors: Kaiu Piipponen, Annu Martinkauppi, Kimmo Korhonen, Sami Vallin, Teppo Arola, Alan Bischoff and Nina Leppäharju
    Citation: Geothermal Energy 2022 10:12
  5. Greywacke basement rocks in New Zealand host conventional geothermal reservoirs and may supply important hotter and deeper geothermal energy resources in the future. This work combines petrological analyses an...

    Authors: Aurelio Melia, Daniel Roy Faulkner and David Daniel McNamara
    Citation: Geothermal Energy 2022 10:11
  6. Information about the absolute stress state in the upper crust plays a crucial role in the planning and execution of, e.g., directional drilling, stimulation and exploitation of geothermal and hydrocarbon rese...

    Authors: Steffen Ahlers, Luisa Röckel, Tobias Hergert, Karsten Reiter, Oliver Heidbach, Andreas Henk, Birgit Müller, Sophia Morawietz, Magdalena Scheck-Wenderoth and Denis Anikiev
    Citation: Geothermal Energy 2022 10:10
  7. Dissolved organic matter (DOM) can be found in a variety of deep subsurface environments such as sedimentary basins, oil fields and mines. However, the origin, composition and fate of DOM within deep geotherma...

    Authors: Alessio Leins, Danaé Bregnard, Andrea Vieth-Hillebrand, Pilar Junier and Simona Regenspurg
    Citation: Geothermal Energy 2022 10:9
  8. Geothermal energy potential is identified through the deep investigation of geological, geothermal, and geophysical information over a small area; however, this task is both expensive and complex. Geographic I...

    Authors: Samah Elbarbary, Mohamed Abdel Zaher, Hakim Saibi, Abdel-Rahman Fowler and Kamal Saibi
    Citation: Geothermal Energy 2022 10:8
  9. Reinjection of excess water from the power production process in the Nesjavellir geothermal field has increased the temperature of shallow groundwaters, posing a risk to cold water wells used for the power pla...

    Authors: Esteban Gómez-Díaz, Samuel Scott, Thomas Ratouis and Juliet Newson
    Citation: Geothermal Energy 2022 10:7
  10. Gravity and magnetic studies have been carried out over a non-volcanic hot spring zone consisting of Atri and Tarabalo hot springs along the intracontinental Mahanadi rift basin to delineate the subsurface str...

    Authors: Aurobindo Kumar Basantaray and Animesh Mandal
    Citation: Geothermal Energy 2022 10:6
  11. The Los Humeros Volcanic Complex has been characterized as a suitable target for developing a super-hot geothermal system (> 350 °C). For the interpretation of geophysical data, the development and parametriza...

    Authors: Leandra M. Weydt, Kristian Bär and Ingo Sass
    Citation: Geothermal Energy 2022 10:5
  12. The transition to renewable energy sources requires extensive changes to the energy system infrastructure, ranging from individual households to the national scale. During this transition, stakeholders must be...

    Authors: Karsten Rink, Özgür Ozan Şen, Malte Schwanebeck, Tim Hartmann, Firdovsi Gasanzade, Johannes Nordbeck, Sebastian Bauer and Olaf Kolditz
    Citation: Geothermal Energy 2022 10:4
  13. Excessive thermal water volumes have been extracted from porous sedimentary rocks in the Hungarian part of the Pannonian Basin. Thermal water production in Hungary increased significantly from the early 1970s....

    Authors: Eszter Békési, Peter A. Fokker, Thibault Candela, János Szanyi and Jan-Diederik van Wees
    Citation: Geothermal Energy 2022 10:3
  14. An evaluation of the feasible development of geothermal energy in Mozambique is proposed based on some thermal springs geochemical characterization in the Tete region. Chemical and isotopic data suggest that t...

    Authors: M. Procesi, L. Marini, D. Cinti, A. Sciarra, P. Basile, T. Mazzoni and F. Zarlenga
    Citation: Geothermal Energy 2022 10:2
  15. Nowadays, utilizing shallow geothermal energy for heating and cooling buildings has received increased interest in the building sector. Among different technologies, large borehole heat exchanger arrays are wi...

    Authors: Jakob Randow, Shuang Chen, Katrin Lubashevsky, Steve Thiel, Tom Reinhardt, Karsten Rink, Rüdiger Grimm, Anke Bucher, Olaf Kolditz and Haibing Shao
    Citation: Geothermal Energy 2022 10:1
  16. Continuous high-resolution gravimetry is increasingly used to monitor mass distribution changes in volcanic, hydrothermal or other complex geosystems. To quantify the often small target signals, gravity contri...

    Authors: Florian Forster, Andreas Güntner, Philippe Jousset, Marvin Reich, Benjamin Männel, Jacques Hinderer and Kemal Erbas
    Citation: Geothermal Energy 2021 9:26

    The Correction to this article has been published in Geothermal Energy 2022 10:31

  17. The Molasse Basin in Southern Germany is part of the North Alpine Foreland Basin and hosts the largest accumulation of deep geothermal production fields in Central Europe. Despite the vast development of geoth...

    Authors: Tom Vincent Schintgen and Inga Sigrun Moeck
    Citation: Geothermal Energy 2021 9:25
  18. A large share of the primary energy is consumed to provide space heating. Geothermal energy offers a regenerative alternative. For reasons of efficiency and environmental protection, it is important to ensure ...

    Authors: Jan-Henrik Kupfernagel, Jan Christopher Hesse, Markus Schedel, Bastian Welsch, Hauke Anbergen, Lutz Müller and Ingo Sass
    Citation: Geothermal Energy 2021 9:24
  19. Agriculture is among the most promising applications of geothermal energy, and Poland has conditions to develop geothermal use in this sector. Suitable locations for agricultural geothermal installations shall...

    Authors: Robert Skrzypczak, Beata Kępińska, Leszek Pająk and Wiesław Bujakowski
    Citation: Geothermal Energy 2021 9:23
  20. Fiber optic sensing has gained importance for wellbore monitoring and reservoir characterization in geothermal fields as it allows continuous, spatially highly resolved measurements. Distributed acoustic sensi...

    Authors: Felix Schölderle, Martin Lipus, Daniela Pfrang, Thomas Reinsch, Sven Haberer, Florian Einsiedl and Kai Zosseder
    Citation: Geothermal Energy 2021 9:21
  21. The 3.1- and 3.7-km-deep FFC-1 and DGE-1 geothermal explorations wells drilled into the Precambrian crystalline basement on the southern margin of the Fennoscandian Shield are evaluated regarding experiences f...

    Authors: Jan-Erik Rosberg and Mikael Erlström
    Citation: Geothermal Energy 2021 9:20
  22. Previous studies optimized the dimensions of coaxial heat exchangers using constant mass flow rates as a boundary condition. They show a thermal optimal circular ring width of nearly zero. Hydraulically optima...

    Authors: Tobias Blanke, Markus Hagenkamp, Bernd Döring, Joachim Göttsche, Vitali Reger and Markus Kuhnhenne
    Citation: Geothermal Energy 2021 9:19
  23. Geothermal scientists have used bottom-hole temperature data from extensive oil and gas well datasets to generate heat flow and temperature-at-depth maps to locate potential geothermally active regions. Consid...

    Authors: Arya Shahdi, Seho Lee, Anuj Karpatne and Bahareh Nojabaei
    Citation: Geothermal Energy 2021 9:18
  24. In this paper, we present an analysis using unsupervised machine learning (ML) to identify the key geologic factors that contribute to the geothermal production in Brady geothermal field. Brady is a hydrotherm...

    Authors: Drew L. Siler, Jeff D. Pepin, Velimir V. Vesselinov, Maruti K. Mudunuru and Bulbul Ahmmed
    Citation: Geothermal Energy 2021 9:17
  25. In geothermal reservoir systems, changes in pore pressure due to production (depletion), injection or temperature changes result in a displacement of the effective stresses acting on the rock matrix of the aqu...

    Authors: Daniel Bohnsack, Martin Potten, Simon Freitag, Florian Einsiedl and Kai Zosseder
    Citation: Geothermal Energy 2021 9:15
  26. Oil and gas operations in sedimentary basins have revealed the occurrence of significant temperature anomalies at depth, raising the possibility of major geothermal resource potential in the sedimentary sequen...

    Authors: Oladoyin Kolawole, Ion Ispas, Folarin Kolawole, Christophe Germay and John D. McLennan
    Citation: Geothermal Energy 2021 9:14
  27. Production data from the Los Humeros geothermal field in Mexico are used to develop a forecast method for operation of the field in the future. This method supports understanding the limitations of sustainably...

    Authors: Héctor González-García, Henning Francke, Ingo Sass and Ernst Huenges
    Citation: Geothermal Energy 2021 9:13
  28. The installed capacity of geothermal systems for direct use of heat is increasing worldwide. As their number and density is increasing, the their interaction with subsurface faults becomes more important as th...

    Authors: Caroline Zaal, Alexandros Daniilidis and Femke C. Vossepoel
    Citation: Geothermal Energy 2021 9:12
  29. A system of borehole heat exchangers (BHEs) combined with pumping–injection wells is established in areas where the groundwater is shallow and the seepage velocity is weak. The pumping and injection wells are ...

    Authors: Jiuchen Ma, Qian Jiang, Qiuli Zhang, Yacheng Xie, Yahui Wang and Feiyu Yi
    Citation: Geothermal Energy 2021 9:11
  30. Advances in new technologies and the desire to achieve a sustainable and safe energy supply, enable communities to transition from conventional to renewable resources, such as geothermal energy. Perception and...

    Authors: D. Balzan-Alzate, J. López-Sánchez, D. Blessent, J. Raymond, C. Dezayes, J. P. Portela, E. Ramírez Restrepo, D. Moreno Rendón, M. Malo, P. Goderniaux, L. Daniele and T. Le Borgne
    Citation: Geothermal Energy 2021 9:9
  31. There are many successful geothermal projects that exploit the Upper Jurassic aquifer at 2–3 km depth in the German Molasse Basin. However, up to now, only P-wave seismic exploration has been carried out. In a...

    Authors: Britta Wawerzinek, Hermann Buness, Hartwig von Hartmann and David C. Tanner
    Citation: Geothermal Energy 2021 9:6
  32. Cementing operations in wellbores, especially for long casings, are often challenging and prone to deficiencies when not properly planned and executed. While exploring for and exploiting of geothermal resource...

    Authors: Martin P. Lipus, Thomas Reinsch, Tobias B. Weisenberger, Steinar Kragset, Ari Stefánsson and Sigurdur G. Bogason
    Citation: Geothermal Energy 2021 9:5
  33. Alternative (unconventional) deep geothermal designs are needed to provide a secure and efficient geothermal energy supply. An in-depth sensitivity analysis was investigated considering a deep borehole closed-...

    Authors: Hannah R. Doran, Theo Renaud, Gioia Falcone, Lehua Pan and Patrick G. Verdin
    Citation: Geothermal Energy 2021 9:4
  34. Although geothermal resources are practically independent of climate factors, those factors significantly condition the potential use of the Earth’s natural heat resources. Unlike all the other factors limitin...

    Authors: Bartłomiej Ciapała, Jakub Jurasz, Mirosław Janowski and Beata Kępińska
    Citation: Geothermal Energy 2021 9:3

    The Correction to this article has been published in Geothermal Energy 2021 9:22

  35. To study the influence of thermal shock caused by water-cooling on the physical and mechanical properties of high-temperature granite, granite was subjected to an increasing number of high-temperature (300 °C)...

    Authors: Li Yu, Hai-Wang Peng, Yu Zhang and Guo-wei Li
    Citation: Geothermal Energy 2021 9:2
  36. A geochemometric study based on a multi-criteria decision analysis was applied, for the first time, for the optimal evaluation and selection of artificial neural networks, and the prediction of geothermal rese...

    Authors: A. Acevedo-Anicasio, E. Santoyo, D. Pérez-Zárate, Kailasa Pandarinath, M. Guevara and L. Díaz-González
    Citation: Geothermal Energy 2021 9:1
  37. The majority of scales observed at geothermal facilities exploring the Malm Aquifer in the Bavarian Molasse Basin are carbonates. They form due to a disruption of the lime–carbonic acid equilibrium during prod...

    Authors: Bernhard Köhl, Martin Elsner and Thomas Baumann
    Citation: Geothermal Energy 2020 8:26
  38. Knowledge of the crustal stress state is important for the assessment of subsurface stability. In particular, stress magnitudes are essential for the calibration of geomechanical models that estimate a continu...

    Authors: Sophia Morawietz, Oliver Heidbach, Karsten Reiter, Moritz Ziegler, Mojtaba Rajabi, Günter Zimmermann, Birgit Müller and Mark Tingay
    Citation: Geothermal Energy 2020 8:25
  39. Uranium and thorium decay series disequilibria in deep geothermal brines are a result of water–rock interaction processes. The migratory behavior of radionuclides provides valuable site-specific information an...

    Authors: Lena Kölbel, Thomas Kölbel, Ulrich Maier, Martin Sauter, Thorsten Schäfer and Bettina Wiegand
    Citation: Geothermal Energy 2020 8:24
  40. Mineral precipitates, scales, are wide-spread in geothermal facilities and hamper technical and economic efficiency. Scales reported from earlier studies in the Bavarian Molasse Basin consisted mostly of calci...

    Authors: Bernhard Köhl, James Grundy and Thomas Baumann
    Citation: Geothermal Energy 2020 8:23
  41. Classification schemes for geothermal energy sources have recently been improved to include the concept of geothermal play. Our comprehensive review for the island of Madagascar aims to enhance the understandi...

    Authors: M. Rajaobelison, J. Raymond, M. Malo and C. Dezayes
    Citation: Geothermal Energy 2020 8:22

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