Special Issue "New Perspectives on Geothermal Energy Exploration and Evaluation of Geothermal Potential"
Deadline for manuscript submissions: 30 September 2021.
2. Consiglio Nazionale Ricerche Istituto di Ricerca su Innovazione e Servizi per lo Sviluppo Napoli, Via Guglielmo Sanfelice 8, 80134 Napoli, Italy
Interests: geothermal energy; environmental geochemistry; pullution
During the past decade, strong efforts have been made to unravel the links between volcanic and non volcanic areas throughout the world and their geothermal energy resources. This effort, in volcanic areas, has provided the basis for converting volcanic risk into a potential clean energy resource, especially in densely inhabited areas. Due to the increasing need for energy in emerging countries, it becomes necessary to characterize geothermal reservoirs as either low/intermediate-temperature resources (for heating and cooling of buildings, district heating, and greenhouses) or high-temperature resources (for electricity generation or co-generation). On the other hand, high-temperature geothermal resources are exploited through deep wells (1–5 km) drilled to reach reservoirs, which can be located in highly heterogeneous volcanic complexes, sedimentary basins, or old basement rocks. Reservoir permeability can be enhanced through different engineering techniques to improve productivity, although such techniques may raise hard problems of social acceptability. Low or intermediate temperature resources are exploited within shallow (few meters) or intermediate boreholes (up to 1 km) and mostly provide heating and cooling capacity. In recognition of these conditions, development of a robust interdisciplinary methodology to characterize such geothermal systems from a volcanological, geophysical, geochemical, and geo(hydro)thermal point of view is fundamental. We welcome contributions pertaining to all these disciplines in order to quickly locate areas within volcanic complexes, sedimentary basins, or old basement rock that are most likely to contain exploitable hydrothermal systems. Well calibrated, multidisciplinary geophysical and geochemical investigation can greatly reduce uncertainties involved in the determination of the geothermal potential, thus stimulating the use of resources able to reduce environmental pollution in emerging countries and in densely populated areas worldwide.
Dr. Renato Somma
Prof. Daniela Blessent
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
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- geothermal energy
- volcanic districts
- geothermal productivity
- hydrology of geothermal systems
- induced seismicity
- low enthalpy
- high enthalpy
- modeling of fractured geological media
- numerical modeling of groundwater flow
- heat transfer
- transport of contaminants
- characterization of geothermal resources
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Optimal configuration of Polymeric Heat Exchangers for Geothermal direct applications
Authors: Francesca Ceglia, Elisa Marrasso, Carlo Roselli, Maurizio Sasso
Affiliation: Department of Engineering, University of Sannio, 82100 Benevento, Italy
Title: 3DHIP-Calculator - A new tool to stochastically assess deep geothermal potential using the Heat-In-Place method based on 3D geological models
Authors: Piris, G.. (1), Herms, I. (2)(*) , Griera, A. (1), Colomer, M. (2), Arnó, G. (2), Gomez-Rivas, E. (3)
Affiliation: (1) Departament de Geologia, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain (2) Àrea de Recursos Geològics, Institut Cartogràfic i Geològic de Catalunya (ICGC), Parc de Montjuic, s/n, 08038 Barcelona, Spain (3) Departament de Mineralogia, Petrologia i Geologia Aplicada, Facultat de Ciències de la Terra, Universitat de Barcelona, C/ Martí i Franqués s/n, 08028 Barcelona, Spain
Abstract: The assessment of the deep geothermal energy potential is an essential part of any geothermal project in its early phases. The well-kown “Heat In Place” volumetric method, is still the most widely used technique to estimate the available stored heat and the recoverable heat fraction of deep geothermal reservoirs at the regional scale. Different commercial and open-source software packages have been used to date to estimate these parameters. However, these tools are either not freely available, only consider the entire reservoir volume or a specific part as a single-cell model, or are restricted to certain geographical areas. A novel MATLAB-based tool named 3DHIP-Calculator has been developed for the assessment of the regional deep geothermal potential using the volumetric method following a stochastic approach. The tool allows the user to estimate the Heat-in-Place and recoverable thermal energy using as inputs a 3D geological model and a 3D thermal model. This tool can also be used to carry out estimations depending on data availability. It includes an easy-to-use graphical user interface for visualising the results and export them in files for further postprocessing. To test its applicability, the sedimentary basin of Reus-Valls (NE, Spain) was considered. The new tool bridges the gap between the first phases of field exploration and geological 3D modelling, and the necessary phase of quantification of the geothermal heat available in deep hot reservoirs. The tool will help investors and research organizations determine the suitability and risk of continuing to advance with new investments in pre-feasibility studies of future projects. The tool has been ended, presented and afterwards used in the framework of the GeoERA H2020 HotLime project.
Title: A combined approach for mapping regional geothermal resources in deep aquifers using stochastic and 3D modelling techniques. The case study in the Empordà basin (NE of Catalonia). GeoERA HotLime project
Authors: Ignasi Herms (1) *, Montse Colomer (1), Gerold W. Diepolder (2), Guillem Piris (3), Georgina Arnó (1), Enrique Gómez-Rivas (4), Anna Gabas (1), Irene Cantarero (4), Fabiant Bellumnt (1), Anna Travé (4
Affiliation: (1) Institut Cartogràfic i Geològic de Catalunya (ICGC), Parc Montjuïc E-08038, Barcelona, Spain (2) Bavarian Environment Agency (LfU) – Geological Survey, Bgm.-Ulrich-Str. 160, 86179 Augsburg, Germany (3) Departament de Geologia. Universitat Autònoma de Barcelona (UAB) 08193 Cerdanyola del Vallès, Barcelona, Spain (4) Facultat de Ciències de la Terra, Universitat de Barcelona (UB), Martí i Franqués, s/n, 08028 Barcelona, Spain
Abstract: This paper presents the results of the characterization of the low enthalpy geothermal resource in the lower Tertiary fractured limestone aquifer within the Empordà Basin, located in the north-eastern sector of the untrusted foreland basin of the Pyrenees in NE Catalonia. The case study is included in the GeoERA H2020 HotLime project, which addresses the mapping and assessment of geothermal plays in deep carbonate rocks from different pilot areas in Europe. A new 3D geological and thermal model of the reservoir-bedrock system has been developed through an integrated interpretation of the previous geological, geophysical and geothermal information available in the study area, complementing it with new geophysical and rock sampling campaigns. The overall available information has been used to develop a 3D conductive layered based steady state regional heat flow model applying a heat uncertainty analysis, to infer the probable temperature distribution within the basin. The geothermal potential assessment has been addressed using the new 3DHIP-Calculator tool, a Matlab-based software compiled for windows which allows to stochastically apply the Heat-In-Place method by using 3D voxel models. Then by means of geographical information system, the georeferenced output results have been converted in raster maps showing among them the spatially distributed stored heat energy (PJ/km2) under different probability scenarios (P10%, P50% and P90%). These maps allow to identify the most favourable and promising areas to go forward for the planning and development of new prospections at local scale.