Geoenergy Modeling Ii

Author : Haibing Shao,Philipp Hein,Agnes Sachse,Olaf Kolditz
Publisher : Springer
Page : 94 pages
File Size : 43,5 Mb
Release : 2016-10-06
Category : Technology & Engineering
ISBN : 9783319450575

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Geoenergy Modeling II by Haibing Shao,Philipp Hein,Agnes Sachse,Olaf Kolditz Pdf

This book is dedicated to the numerical modeling of shallow geothermal systems. The utilization of shallow geothermal energy involves the integration of multiple Borehole Heat Exchangers (BHE) with Ground Source Heat Pump (GSHP) systems to provide heating and cooling. The modeling practices explained in this book can improve the efficiency of these increasingly common systems. The book begins by explaining the basic theory of heat transport processes in man-made as well as natural media. . These techniques are then applied to the simulation of borehole heat exchangers and their interaction with the surrounding soil. The numerical and analytical models are verified against analytical solutions and measured data from a Thermal Response Test, and finally, a real test site is analyzed through the model and discussed with regard to BHE and GSHP system design and optimization.

Author : Norihiro Watanabe,Guido Blöcher,Mauro Cacace,Sebastian Held,Thomas Kohl
Publisher : Springer
Page : 104 pages
File Size : 54,7 Mb
Release : 2016-11-10
Category : Technology & Engineering
ISBN : 9783319465814

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Geoenergy Modeling III by Norihiro Watanabe,Guido Blöcher,Mauro Cacace,Sebastian Held,Thomas Kohl Pdf

This book focuses on numerical modeling of deep hydrothermal and petrothermal systems in fractured georeservoirs for utilization in Geothermal Energy applications. The authors explain the particular challenges and approaches to modeling heat transport and high-throughput flow in multiply fractured porous rock formations. In order to help readers gain a system-level understanding of the necessary analysis, the authors include detailed examples of growing complexity as the techniques explained in the text are introduced. The coverage culminates with the fully-coupled analysis of real deep geothermal test-sites located in Germany and France.

Author : Norbert Böttcher,Norihiro Watanabe,Uwe-Jens Görke,Olaf Kolditz
Publisher : Springer
Page : 107 pages
File Size : 43,7 Mb
Release : 2016-06-27
Category : Technology & Engineering
ISBN : 9783319313351

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Geoenergy Modeling I by Norbert Böttcher,Norihiro Watanabe,Uwe-Jens Görke,Olaf Kolditz Pdf

This introduction to geothermal modeling deals with flow and heat transport processes in porous and fractured media related to geothermal energy applications. Following background coverage of geothermal resources and utilization in several countries, the basics of continuum mechanics for heat transport processes, as well as numerical methods for solving underlying governing equations are discussed. This examination forms the theoretical basis for five included step-by-step OpenGeoSys exercises, highlighting the most important computational areas within geothermal resource utilization, including heat diffusion, heat advection in porous and fractured media, and heat convection. The book concludes with an outlook on practical follow-up contributions investigating the numerical simulation of shallow and deep geothermal systems.

Author : Rafid Al-Khoury
Publisher : CRC Press
Page : 256 pages
File Size : 45,9 Mb
Release : 2011-09-30
Category : Technology & Engineering
ISBN : 9780415596275

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Computational Modeling of Shallow Geothermal Systems by Rafid Al-Khoury Pdf

A Step-by-step Guide to Developing Innovative Computational Tools for Shallow Geothermal Systems Geothermal heat is a viable source of energy and its environmental impact in terms of CO2 emissions is significantly lower than conventional fossil fuels. Shallow geothermal systems are increasingly utilized for heating and cooling of buildings and greenhouses. However, their utilization is inconsistent with the enormous amount of energy available underneath the surface of the earth. Projects of this nature are not getting the public support they deserve because of the uncertainties associated with them, and this can primarily be attributed to the lack of appropriate computational tools necessary to carry out effective designs and analyses. For this energy field to have a better competitive position in the renewable energy market, it is vital that engineers acquire computational tools, which are accurate, versatile and efficient. This book aims at attaining such tools. This book addresses computational modeling of shallow geothermal systems in considerable detail, and provides researchers and developers in computational mechanics, geosciences, geology and geothermal engineering with the means to develop computational tools capable of modeling the complicated nature of heat flow in shallow geothermal systems in rather straightforward methodologies. Coupled conduction-convection models for heat flow in borehole heat exchangers and the surrounding soil mass are formulated and solved using analytical, semi-analytical and numerical methods. Background theories, enhanced by numerical examples, necessary for formulating the models and conducting the solutions are thoroughly addressed. The book emphasizes two main aspects: mathematical modeling and computational procedures. In geothermics, both aspects are considerably challenging because of the involved geometry and physical processes. However, they are highly stimulating and inspiring. A good combination of mathematical modeling and computational procedures can greatly reduce the computational efforts. This book thoroughly treats this issue and introduces step-by-step methodologies for developing innovative computational models, which are both rigorous and computationally efficient.

Author : Paul Pukite,Dennis Coyne,Daniel Challou
Publisher : John Wiley & Sons
Page : 373 pages
File Size : 46,7 Mb
Release : 2019-01-07
Category : Science
ISBN : 9781119434290

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Mathematical Geoenergy by Paul Pukite,Dennis Coyne,Daniel Challou Pdf

A rigorous mathematical problem-solving framework for analyzing the Earth’s energy resources GeoEnergy encompasses the range of energy technologies and sources that interact with the geological subsurface. Fossil fuel availability studies have historically lacked concise modeling, tending instead toward heuristics and overly-complex processes. Mathematical GeoEnergy: Oil Discovery, Depletion and Renewal details leading-edge research based on a mathematically-oriented approach to geoenergy analysis. Volume highlights include: Applies a formal mathematical framework to oil discovery, depletion, and analysis Employs first-order applied physics modeling, decreasing computational resource requirements Illustrates model interpolation and extrapolation to fill out missing or indeterminate data Covers both stochastic and deterministic mathematical processes for historical analysis and prediction Emphasizes the importance of up-to-date data, accessed through the companion website Demonstrates the advantages of mathematical modeling over conventional heuristic and empirical approaches Accurately analyzes the past and predicts the future of geoenergy depletion and renewal using models derived from observed production data Intuitive mathematical models and readily available algorithms make Mathematical GeoEnergy: Oil Discovery, Depletion and Renewal an insightful and invaluable resource for scientists and engineers using robust statistical and analytical tools applicable to oil discovery, reservoir sizing, dispersion, production models, reserve growth, and more.

Author : Rajandrea Sethi,Alessandro Casasso
Publisher : MDPI
Page : 144 pages
File Size : 43,9 Mb
Release : 2020-12-10
Category : Technology & Engineering
ISBN : 9783039362844

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Volume II: Low Enthalpy Geothermal Energy by Rajandrea Sethi,Alessandro Casasso Pdf

Low enthalpy geothermal energy has a great potential to reduce the climate impact of building heating and cooling systems. The use of this renewable energy source involves a number of scientific disciplines including energy engineering, heat transfer, geology, hydrogeology, chemistry, and economics. Low enthalpy geothermal energy, i.e., the underground heat available at temperatures below 90°C, has great potential in terms of reducing the climate impact of heating and cooling buildings. It can also be employed for other thermal uses, such as industrial processes, road de-icing, and bathing. The Special Issue “Volume II: Low Enthalpy Geothermal Energy” includes seven articles that discuss the topic from the following points of view: mapping of shallow geothermal potential, recent developments for enhancing the performance of borehole heat exchangers, exploitation of asphalt-covered surfaces for heating, measurement of the thermal conductivity of rocks and sediments, and performance monitoring of closed-loop and open-loop low enthalpy geothermal systems.

Author : Jianxing Liao
Publisher : Cuvillier Verlag
Page : 180 pages
File Size : 41,5 Mb
Release : 2020-07-28
Category : Technology & Engineering
ISBN : 9783736962422

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Development of coupled THM models for reservoir stimulation and geo-energy production with supercritical CO2 as working fluid by Jianxing Liao Pdf

In this dissertation, two specific numerical models have been developed to address the issues associated with utilization of supercritical CO2, like fracture creation, proppant placement and fracture closure in unconventional gas reservoirs, reservoir stimulation, heat production and CO2 sequestration in deep geothermal reservoirs, respectively. In unconventional gas reservoir, the model consisting of classic fracture model, proppant transport model as well as temperature-sensitive fracturing fluids (CO2, thickened CO2 and guar gum) has been integrated into the popular THM coupled framework (TOUGH2MP-FLAC3D), which has the ability to simulate single fracture propagation driven by different fracturing fluids in non-isothermal condition. To characterize the fracture network propagation and internal multi fluids behavior in deep geothermal reservoirs, an anisotropic permeability model on the foundation of the continuum anisotropic damage model has been developed and integrated into the popular THM coupled framework (TOUGH2MP-FLAC3D) as well. This model has the potential to simulate the reservoir stimulation and heat extraction based on a CO2-EGS concept.

Author : Marc A. Rosen,Seama Koohi-Fayegh
Publisher : John Wiley & Sons
Page : 312 pages
File Size : 52,8 Mb
Release : 2016-11-18
Category : Technology & Engineering
ISBN : 9781119181033

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Geothermal Energy by Marc A. Rosen,Seama Koohi-Fayegh Pdf

Comprehensively covers geothermal energy systems that utilize ground energy in conjunction with heat pumps to provide sustainable heating and cooling The book describes geothermal energy systems that utilize ground energy in conjunction with heat pumps and related technologies to provide heating and cooling. Also discussed are methods to model and assess such systems, as well as means to determine potential environmental impacts of geothermal energy systems and their thermal interaction. The book presents the most up-to-date information in the area. It provides material on a range of topics, from thermodynamic concepts to more advanced discussions of the renewability and sustainability of geothermal energy systems. Numerous applications of such systems are also provided. Geothermal Energy: Sustainable Heating and Cooling Using the Ground takes a research orientated approach to provide coverage of the state of the art and emerging trends, and includes numerous illustrative examples and case studies. Theory and analysis are emphasized throughout, with detailed descriptions of models available for vertical and horizontal geothermal heat exchangers. Key features: Explains geothermal energy systems that utilize ground energy in conjunction with heat pumps to provide heating and cooling, as well as related technologies such as thermal energy storage. Describes and discusses methods to model and analyze geothermal energy systems, and to determine their potential environmental impacts and thermal interactions. Covers various applications of geothermal energy systems. Takes a research orientated approach to provide coverage of the state of the art and emerging trends. Includes numerous illustrative examples and case studies. The book is key for researchers and practitioners working in geothermal energy, as well as graduate and advanced undergraduate students in departments of mechanical, civil, chemical, energy, environmental, process and industrial engineering.

Author : Anonim
Publisher : Unknown
Page : 750 pages
File Size : 52,5 Mb
Release : 1978
Category : Geothermal engineering
ISBN : UOM:39015023939617

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Geothermal Energy Update by Anonim Pdf

Author : Cuvillier Verlag
Publisher : Cuvillier Verlag
Page : 994 pages
File Size : 40,6 Mb
Release : 2015-08-19
Category : Technology & Engineering
ISBN : 9783736980808

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Final Report of Geothermal Energy and High-Performance Drilling Collaborative Research Program (gebo) by Cuvillier Verlag Pdf

The superior goal of the gebo research association was making important contributions for the future reliable drilling under the existing “hot-hard-rock” conditions in Niedersachsen and their development to the geothermal drillings with sustainable geological subsurface heat exchangers. This goal should be achieved due to the solid research and innovative technology approaches in their combination within one concept for pioneering methods in deep geothermal drillings in hard rock, to be more exact - in interdisciplinary cooperation on engineers and scientists - in cooperation between industry and University, researchers and users Gebo research association comprised scientists and technicians of different research institutions and universities who are working in 33 projects. The individual projects were assigned to one of the 4 main research fields or focus areas. Gebo research association started its activities with 7 project partners participating: - Technische Universität Braunschweig (TUBS) - Technische Universität Clausthal (TUC) - Gottfried Wilhelm Leibniz Universität Hannover (LUH) - Georg-August-Universität Göttingen (UGOE) - Leibniz-Institut für Angewandte Geophysik (LIAG) - Bundesanstalt für Geowissenschaften und Rohstoffe (BGR) - Energie-Forschungszentrum Niedersachsen (EFZN) Baker Hughes, an industrial partner, participated in the association and supplies it with its experience and additional funds.

Author : United States. Energy Research and Development Administration. Division of Geothermal Energy
Publisher : Unknown
Page : 244 pages
File Size : 44,6 Mb
Release : 1977
Category : Geothermal engineering
ISBN : OSU:32435073181919

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Annual Report, Geothermal Energy Research, Development & Demonstration Program by United States. Energy Research and Development Administration. Division of Geothermal Energy Pdf

Author : Hejuan Liu
Publisher : Cuvillier Verlag
Page : 285 pages
File Size : 55,8 Mb
Release : 2014-11-10
Category : Science
ISBN : 9783736948426

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Numerical study of physico- chemical interactions for CO2 sequestration and geothermal energy utilization in the Ordos Basin, China by Hejuan Liu Pdf

In this dissertation, three simulators (i.e. TOUGH2MP, TOUGHREACT and FLAC3D) were used to simulate the complex physical and chemical interactions induced by CO2 sequestration. The simulations were done instages, ranging from the two phase (water and CO2) fluid flow (H2), through coupled hydro-mechanical effects (H2M) and geochemical responses (i.e. CO2-water-rock interactions (H2C)), to the extension of CCS to CCUS by the application of combined geothermal production and CO2 sequestration technologies. The findings of this study are essential for a thorough understanding of the complex interactions in the multiphase, multicomponent porous media controlled by different physical and chemical mechanisms. Furthermore, the simulation results will provide an invaluable reference for field operations in CCS projects, especially for the full-integration pilot scale CCS project launched in the Ordos Basin. Subsequently, a preliminary site selection scheme for the combined geothermal production and CO2 sequestration was set up, which considered various factorsinvolved in site selection, ranging from safety, economical, environmental and technical issues. This work provides an important framework for the combined geothermal production and CO2 sequestration project. However, further numerical and field studies are still needed to improve on a series of criteria and related parameters necessary for a better understanding of the technology.

Author : Anonim
Publisher : Unknown
Page : 622 pages
File Size : 43,5 Mb
Release : 1980
Category : Energy policy
ISBN : WISC:89033921800

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Energy Modeling II by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 988 pages
File Size : 51,8 Mb
Release : 1979
Category : Power resources
ISBN : MSU:31293010867442

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Energy Research Abstracts by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 666 pages
File Size : 51,5 Mb
Release : 1978
Category : Geothermal engineering
ISBN : UOM:39015029609610

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Geothermal Energy Magazine by Anonim Pdf