Flow and Heat Transfer in Geothermal Systems

Flow and Heat Transfer in Geothermal Systems
Author: Aniko Toth,Elemer Bobok
Publsiher: Elsevier
Total Pages: 394
Release: 2016-10-11
ISBN 10: 0128005254
ISBN 13: 9780128005255
Language: EN, FR, DE, ES & NL

Flow and Heat Transfer in Geothermal Systems Book Review:

Flow and Heat Transfer in Geothermal Systems: Basic Equations for Description and Modeling Geothermal Phenomena and Technologies is the ideal reference for research in geothermal systems and alternative energy sources. Written for a wide variety of users, including geologists, geophysicists, hydro-geologists, and engineers, it offers a practical framework for the application of heat and flow transport theory. Authored by two of the world’s foremost geothermal systems experts, whose combined careers span more than 50 years, this text is a one-stop resource for geothermal system theory and application. It will help geoscientists and engineers navigate the wealth of new research that has emerged on the topic in recent years. Presents a practical and immediately implementable framework for understanding and applying heat and flow transport theory Features equations for modelling geothermal phenomena and technologies in full detail Provides an ideal text for applications in both geophysics and engineering

Geologic Fundamentals of Geothermal Energy

Geologic Fundamentals of Geothermal Energy
Author: David R. Boden
Publsiher: CRC Press
Total Pages: 399
Release: 2016-09-19
ISBN 10: 1315354233
ISBN 13: 9781315354231
Language: EN, FR, DE, ES & NL

Geologic Fundamentals of Geothermal Energy Book Review:

Geothermal energy stands out because it can be used as a baseload resource. This book, unlike others, examines the geology related to geothermal applications. Geology dictates (a) how geothermal resources can be found, (b) the nature of the geothermal resource (such as liquid- or vapor-dominated) and (c) how the resource might be developed ultimately (such as flash or binary geothermal plants). The compilation and distillation of geological elements of geothermal systems into a single reference fills a notable gap.

Mathematical modeling of fluid flow and heat transfer in geothermal systems an introduction in five lectures

Mathematical modeling of fluid flow and heat transfer in geothermal systems   an introduction in five lectures
Author: Karsten Pruess
Publsiher: Unknown
Total Pages: 84
Release: 2002
ISBN 10: 9789979681007
ISBN 13: 9979681004
Language: EN, FR, DE, ES & NL

Mathematical modeling of fluid flow and heat transfer in geothermal systems an introduction in five lectures Book Review:

Computational Modeling of Shallow Geothermal Systems

Computational Modeling of Shallow Geothermal Systems
Author: Rafid Al-Khoury
Publsiher: CRC Press
Total Pages: 254
Release: 2011-09-30
ISBN 10: 0415596270
ISBN 13: 9780415596275
Language: EN, FR, DE, ES & NL

Computational Modeling of Shallow Geothermal Systems Book Review:

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.

Volume II Low Enthalpy Geothermal Energy

Volume II  Low Enthalpy Geothermal Energy
Author: Rajandrea Sethi,Alessandro Casasso
Publsiher: MDPI
Total Pages: 144
Release: 2020-12-10
ISBN 10: 3039362844
ISBN 13: 9783039362844
Language: EN, FR, DE, ES & NL

Volume II Low Enthalpy Geothermal Energy Book Review:

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.

Geothermal Energy

Geothermal Energy
Author: Marc A. Rosen,Seama Koohi-Fayegh
Publsiher: John Wiley & Sons
Total Pages: 312
Release: 2016-11-18
ISBN 10: 1119181038
ISBN 13: 9781119181033
Language: EN, FR, DE, ES & NL

Geothermal Energy Book Review:

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.

Convective Heat Transfer in Porous Media

Convective Heat Transfer in Porous Media
Author: Yasser Mahmoudi,Kamel Hooman,Kambiz Vafai
Publsiher: CRC Press
Total Pages: 381
Release: 2019-11-06
ISBN 10: 0429672047
ISBN 13: 9780429672040
Language: EN, FR, DE, ES & NL

Convective Heat Transfer in Porous Media Book Review:

Focusing on heat transfer in porous media, this book covers recent advances in nano and macro’ scales. Apart from introducing heat flux bifurcation and splitting within porous media, it highlights two-phase flow, nanofluids, wicking, and convection in bi-disperse porous media. New methods in modeling heat and transport in porous media, such as pore-scale analysis and Lattice–Boltzmann methods, are introduced. The book covers related engineering applications, such as enhanced geothermal systems, porous burners, solar systems, transpiration cooling in aerospace, heat transfer enhancement and electronic cooling, drying and soil evaporation, foam heat exchangers, and polymer-electrolyte fuel cells.

Thermal Use of Shallow Groundwater

Thermal Use of Shallow Groundwater
Author: Fritz Stauffer,Peter Bayer,Philipp Blum,Nelson Molina Giraldo,Wolfgang Kinzelbach
Publsiher: CRC Press
Total Pages: 287
Release: 2013-12-12
ISBN 10: 1466560207
ISBN 13: 9781466560208
Language: EN, FR, DE, ES & NL

Thermal Use of Shallow Groundwater Book Review:

The thermal use of the shallow subsurface is increasingly being promoted and implemented as one of many promising measures for saving energy. A series of questions arises concerning the design and management of underground and groundwater heat extraction systems, such as the sharing of the thermal resource and the assessment of its long-term potential. For the proper design of thermal systems it is necessary to assess their impact on underground and groundwater temperatures. Thermal Use of Shallow Groundwater introduces the theoretical fundamentals of heat transport in groundwater systems, and discusses the essential thermal properties. It presents a complete overview of analytical and numerical subsurface heat transport modeling, providing a series of mathematical tools and simulation models based on analytical and numerical solutions of the heat transport equation. It is illustrated with case studies from Austria, Germany, and Switzerland of urban thermal energy use, and heat storage and cooling. This book gives a complete set of analytical solutions together with MATLAB® computer codes ready for immediate application or design. It offers a comprehensive overview of the state of the art of analytical and numerical subsurface heat transport modeling for students in civil or environmental engineering, engineering geology, and hydrogeology, and also serves as a reference for industry professionals.

Geothermal Energy An Important Resource

Geothermal Energy  An Important Resource
Author: Carolyn B. Dowling,Klaus Neumann,Lee Florea
Publsiher: Geological Society of America
Total Pages: 144
Release: 2016-03-17
ISBN 10: 0813725194
ISBN 13: 9780813725192
Language: EN, FR, DE, ES & NL

Geothermal Energy An Important Resource Book Review:

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Mathematical Modeling of Fluid Flow and Heat Transfer in Petroleum Industries and Geothermal Applications

Mathematical Modeling of Fluid Flow and Heat Transfer in Petroleum Industries and Geothermal Applications
Author: Mehrdad Massoudi
Publsiher: MDPI
Total Pages: 470
Release: 2020-04-16
ISBN 10: 3039287206
ISBN 13: 9783039287208
Language: EN, FR, DE, ES & NL

Mathematical Modeling of Fluid Flow and Heat Transfer in Petroleum Industries and Geothermal Applications Book Review:

Geothermal energy is the thermal energy generated and stored in the Earth's core, mantle, and crust. Geothermal technologies are used to generate electricity and to heat and cool buildings. To develop accurate models for heat and mass transfer applications involving fluid flow in geothermal applications or reservoir engineering and petroleum industries, a basic knowledge of the rheological and transport properties of the materials involved (drilling fluid, rock properties, etc.)—especially in high-temperature and high-pressure environments—are needed. This Special Issue considers all aspects of fluid flow and heat transfer in geothermal applications, including the ground heat exchanger, conduction and convection in porous media. The emphasis here is on mathematical and computational aspects of fluid flow in conventional and unconventional reservoirs, geothermal engineering, fluid flow, and heat transfer in drilling engineering and enhanced oil recovery (hydraulic fracturing, CO2 injection, etc.) applications.

Commercial Program Development for a Ground Loop Geothermal System

Commercial Program Development for a Ground Loop Geothermal System
Author: Paul A. Gross (II)
Publsiher: Unknown
Total Pages: 95
Release: 2011
ISBN 10: 1928374650XXX
ISBN 13: OCLC:1029762192
Language: EN, FR, DE, ES & NL

Commercial Program Development for a Ground Loop Geothermal System Book Review:

The use of the earth's thermal energy to heat and cool building space is nothing new; however, the heat transfer approximations used in modeling geothermal systems, leave uncertainty and lead to over sizing. The present work is part of a Wright State effort to improve the computer modeling tools used to simulate ground loop geothermal heating and cooling systems. The modern computer processor has equipped us with the computation speed to use a finite volume technique to solve the unsteady heat equation with hourly time steps for multi-year analyses in multiple spatial dimensions. Thus we feel there is more need to use approximate heat transfer solution techniques to model geothermal heating and cooling systems. As part of a DOE funded project Wright State has been developing a ground loop geothermal computer modeling tool that uses a detailed heat transfer model based on the governing differential energy equation. This tool is meant to be more physically detailed and accurate than current commercial ground loop geothermal computer codes. The Wright State code allows the geothermal designer to optimize the system using a number of outputs including temperature field outputs, existing fluid temperature plots, heat exchange plots, and even a histogram of the COP data. Careful attention to the algorithm speed allows for multi-year simulations with minimal computation cost. Once the thermal and heat transfer computations are complete, a payback period calculator can compare any conventional heating and cooling system to the designed geothermal system and payback periods are displayed. The work being presented as part of this thesis deals with five issues that were required to make the Wright State geothermal computer code a reality. The five aspects of this modeling tool addressed by this thesis work are: energy load calculations, GUI (graphical user interface) development, turbulence model development, heat pump model development, and two-dimensional numerical grid development. The energy load, or heating and cooling load, calculations are handled using the sophisticated DOE program called EnergyPlus. This thesis work developed a technique for coupling EnergyPlus to the Wright State geothermal code and devising a way for novice users to obtain energy loads quickly and easily, while still allowing expert users to utilize the full strength of EnergyPlus. The GUI for the Wright State computer program was developed with the novice and expert users in mind. The GUI offers ease of use while maintaining the ability for the expert users to setup unique designs for simulation. A unique way of modeling the effects of turbulent flow in the ground tube has allowed the Wright State code to maintain low computation times, while having small errors for a wide range of Reynolds numbers. To make the Wright State ground loop computer model more complete, a heat pump was developed as part of this work. The heat pump model uses the performance characteristics of commercial heat pumps to determine the performance of the geothermal system. The energy transport in the fluid is determined and used to select one of eighteen water-to-air heat pumps that calculate hourly COP's for all system conditions. The calculated heat pump efficiencies are used in an energy balance with hourly building loads to calculate the next iteration's bulk temperature entering the ground loop. Additional details are provided in this thesis on each of these five, important, computer modeling issues.

Geothermal Heating and Cooling

Geothermal Heating and Cooling
Author: Stephen P. Kavanaugh,Kevin D. Rafferty,American Society of Heating, Refrigerating and Air-Conditioning Engineers
Publsiher: Unknown
Total Pages: 440
Release: 2014-12-15
ISBN 10: 9781936504855
ISBN 13: 1936504855
Language: EN, FR, DE, ES & NL

Geothermal Heating and Cooling Book Review:

"Best practices for designing nonresidential geothermal systems (ground-source heat pump, closed-loop ground, groundwater, and surface-water systems) for HVAC design engineers, design-build contractors, GSHP subcontractors, and energy/construction managers; includes supplemental Microsoft Excel macro-enabled spreadsheets for a variety of GSHP calculations"--

Geothermics

Geothermics
Author: Vincenzo Pasquale,Massimo Verdoya,Paolo Chiozzi
Publsiher: Springer
Total Pages: 138
Release: 2017-02-03
ISBN 10: 3319520849
ISBN 13: 9783319520841
Language: EN, FR, DE, ES & NL

Geothermics Book Review:

This book, now in its second edition, offers a comprehensive and modern treatment on the background knowledge of heat transfer processes in the lithosphere. In the light of the success of the first edition, several chapters of the book have been revised and the book has been enriched with a new chapter on geothermal methods used for the inference of past climate changes.The book starts with a brief review of global tectonics and of the structure of the crust and upper mantle. Then the theory of heat conduction as well as the thermal properties and the methods for the determination of thermal conductivity and radiogenic heat are introduced. Subsequently the geothermal flow and the thermal state of the lithosphere and deep interior are analyzed. The formation, upwelling mechanisms, solidification and cooling of magmas, which can be a fundamental heat source in many geothermal systems, are reviewed. Analytical methods used for gaining information on heat and groundwater flow from the analyses of temperature depth data are also covered. Data and practical examples are supplied to facilitate the understanding of the different topics.The book is intended for Earth science graduate students and researchers.

Shallow Geothermal Systems

Shallow Geothermal Systems
Author: Geotechnik,Deutsche Gesellschaft für Geowissen
Publsiher: John Wiley & Sons
Total Pages: 312
Release: 2016-05-13
ISBN 10: 3433606684
ISBN 13: 9783433606681
Language: EN, FR, DE, ES & NL

Shallow Geothermal Systems Book Review:

The recommendations summarise the state of the art. Their aim is the proper exploitation of the ground for geothermal purposes without adversely affecting the ground or the groundwater on the one hand and the operation of the system and nearby buildings on the other. The recommendations should be used during consulting, design, installation and operation in order to achieve optimum and sustainable use of the ground at a specific location. Authorities responsible for supervising and approving projects can use the recommendations as a guide when taking decisions and making stipulations. The Geothermal Energy Study Group was set up in Bochum in 2004 and became the joint DGGV/DGGT study group in 2007. Some 20 specialists from universities, authorities and engineering consultants are active in the group and meet two or three times a year.

Geothermal Energy Update

Geothermal Energy Update
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 1976
ISBN 10: 1928374650XXX
ISBN 13: UOM:39015023939609
Language: EN, FR, DE, ES & NL

Geothermal Energy Update Book Review:

Geothermal Energy Systems

Geothermal Energy Systems
Author: Ernst Huenges,Patrick Ledru
Publsiher: John Wiley & Sons
Total Pages: 486
Release: 2011-08-24
ISBN 10: 352764461X
ISBN 13: 9783527644612
Language: EN, FR, DE, ES & NL

Geothermal Energy Systems Book Review:

Geothermal Energy Systems The book encounters basic knowledge about geothermal technology for the utilization of geothermal resources. The book helps to understand the basic geology needed for the utilization of geothermal energy, shows up the practice to make access to geothermal reservoirs by drilling and the engineering of the reservoir by enhancing methods. The book describes the technology to make use of the Earth?s heat for direct use, power, and/or chill and gives boundary conditions for its economic and environmental utilization. A special focus is made on enhanced or engineered geothermal systems (EGS) which are based on concepts which bring a priori less productive reservoirs to an economic use. From the contents: Reservoir Definition Exploration Methods Drilling into Geothermal Reservoirs Enhancing Geothermal Reservoirs Geothermal Reservoir Simulation Energetic Use of EGS Reservoirs Economic Performance and Environmental Assessment Deployment of Enhanced Geothermal Systems plants and CO2-mitigation

Heat Transfer Investigations for Optimal Harnessing of Enhanced Geothermal Systems

Heat Transfer Investigations for Optimal Harnessing of Enhanced Geothermal Systems
Author: Esuru Rita Okoroafor
Publsiher: Unknown
Total Pages: 135
Release: 2021
ISBN 10: 1928374650XXX
ISBN 13: OCLC:1255519934
Language: EN, FR, DE, ES & NL

Heat Transfer Investigations for Optimal Harnessing of Enhanced Geothermal Systems Book Review:

Enhanced Geothermal Systems (EGS) offer the opportunity of exploiting the vast energy resources contained in hot impermeable rocks. In such rocks, the natural flow capacity of the system may not be sufficient to support adequate geothermal applications until it is enhanced by opening up existing fractures and propagating new fractures. Cold fluid is injected into the reservoir to exploit the energy resource, whose permeability has been enhanced. The increased permeability allows the fluid to circulate through the opened fractures to production or extraction well(s), thereby capturing and transporting the heat contained in the hot impermeable rock for power generation. Accurate prediction of the thermal performance of EGS depends on an understanding of how the heat transport is affected by the presence of the fracture(s) -- the primary flow conduit of EGS. These fractures may have aperture variability that could create channels and alter flow paths, affecting the availability of surface area for heat transfer. The overall goal of this study was to understand the fracture topology, investigate how it can impact flow and heat transport, and demonstrate ways Enhanced Geothermal Systems can be harnessed to optimize thermal performance. To achieve the goal of this study, a systematic fracture characterization approach was used, and numerical simulation models were used to study the physical processes that govern the interaction between the fluid and the rock during heat extraction from Enhanced Geothermal Systems. Using variogram modeling and Sequential Gaussian Simulation method, fracture apertures representing actual fractures were generated for lab-scale and field-scale investigations. Fracture characterization metrics such as the Joint Roughness Coefficient (JRC) and Hurst exponent were used in analyzing the data. Geometric anisotropy was a vital character of the generated fracture aperture distributions, which was seen to originate from the process of shearing or slip. Flow and heat transport relative to the direction of fracture shear was studied, with the perpendicular flow configuration being perpendicular to the direction of fracture shear. In contrast, the parallel flow configuration had flow in the same direction as the fracture shear direction. It was demonstrated in this study that the flow wetted surface area had a direct and significant contribution to the amount of heat extracted. For the lab-scale fractures, the JRC confirmed geometric anisotropy of the fracture aperture and was seen to have a direct correlation with the flow contact area. The lower the difference in JRC values between the perpendicular and parallel flow configurations, the more flow contact area expected in the perpendicular flow direction, which will lead to more heat extracted from the rock. From the variogram model parameters, it was deduced that high geometric anisotropy results in high differences in thermal drawdown and consequently a high difference in energy extracted. The thermal performance appeared to be better in the perpendicular flow configuration with a ratio of 70:30 for the lab-scale fractures. For the field-scale fractures, it was seen that most of the fracture aperture distributions with a geometric anisotropy ratio of 2 had Hurst exponents of fracture surface aperture variability found in nature. For all the fracture aperture distributions analyzed for the field scale, the perpendicular flow configuration resulted in better thermal performance than the parallel flow configuration with a ratio of 58:42. Furthermore, for the geometric anisotropy ratio of 2, the ratio was 70:30. The perpendicular flow configuration had the injected fluid move through tortuous flow paths. These tortuous flow paths contributed to more fracture surface area being contacted by the flowing fluid, leading to an improved thermal performance in that flow configuration. Throughout this study, temperature-dependent viscosity was used. However, a section of this study investigated the impact of using a constant viscosity in the thermohydraulic model. It was seen that for fractures with smooth, uniform apertures, for all temperature ranges and at the operating conditions being modeled, there was no significant difference between using a constant viscosity or a temperature-dependent viscosity in modeling an Enhanced Geothermal System. However, for fractures with spatial variations, it was determined that modeling with a temperature-dependent viscosity was necessary, especially for systems with high differences in reservoir and injection temperatures, and for fractures with high correlation lengths. The impact of thermal stresses on heat extraction was also investigated. An analog Enhanced Geothermal System, the Altona Field Laboratory, was also studied for thermo-mechanical influences. It was found out that the injection of hot water into the cold rock resulted in thermal stress generation and reduction in the aperture but did not cause significant changes to the temperature profile due to the small volumetric flow rate through the system. Also, anisotropic aperture distributions were studied to determine the impact of thermoelasticity on the heat extraction of Enhanced Geothermal Systems. It was shown that when thermoelasticity is taken into consideration, the thermal drawdown could either be improved or deteriorated depending on the nature of the aperture distribution. The impact of fracture aperture variability was investigated for Enhanced Geothermal Systems using supercritical CO2 as working fluids. It was established that CO2 as an EGS working fluid would result in better heat extracted from the system if the fractures are considered smooth, which agrees with related studies. However, where there is spatial variation in the fracture aperture, channeling could be detrimental to CO2, especially at high fracture correlation lengths and high mass flow rates, due to the high mobility of CO2. The following are the main contributions from this study. First, it has been demonstrated that heat transport is affected by the geometric anisotropy of fracture surfaces. It was determined that in most cases, flowing perpendicular to the direction of shear or slip results in more heat extracted due to more contact of the fluid with the rock while moving through tortuous flow paths. Secondly, the conditions under which a constant viscosity can be used in modeling EGS were determined. If the fractures are known to be smooth, have low correlation lengths, or have distributed surface areas, a constant viscosity can be used in the model, especially if the difference between the reservoir temperature and the injection water temperature is small. However, for anisotropic fracture surfaces, surfaces with high correlations lengths or high tortuosity, and when the difference between the reservoir temperature and injection water temperature is large, the use of constant viscosity could result in significant computational errors from the actual. Thirdly, it has been shown that thermal drawdown could either be improved or deteriorate when thermoelasticity is considered. This finding is different from studies previous studies that have looked into coupling thermohydromechanical processes for fractures with spatial variations and suggests that Enhanced Geothermal Systems may benefit from thermal stimulation. Finally, this work shows the first comparison between CO2 and water at a field scale considering fracture aperture variability. Recommended future work includes modeling of vertical fractures with spatial variations in fracture aperture to investigate how convection may impact the current findings; considering multiple fractures with spatial variations in the fracture aperture; considering non-Darcy flow in the simulation models; coupling geomechanics with the study of CO2 on fractures with spatial variations, and developing proxy models that are quicker to perform the thermohydraulic and thermohydromechanical simulations.

An Introduction to Thermogeology

An Introduction to Thermogeology
Author: David Banks
Publsiher: John Wiley & Sons
Total Pages: 526
Release: 2012-08-13
ISBN 10: 0470670347
ISBN 13: 9780470670347
Language: EN, FR, DE, ES & NL

An Introduction to Thermogeology Book Review:

Sets the baseline for the science behind an emerging technology Authoritative guide to skills needed to implement ground source heat pump schemes Only book using SI units to adequately focus on the geological aspects of ground source heat.

Geoenergy Modeling II

Geoenergy Modeling II
Author: Haibing Shao,Philipp Hein,Agnes Sachse,Olaf Kolditz
Publsiher: Springer
Total Pages: 94
Release: 2016-10-06
ISBN 10: 3319450573
ISBN 13: 9783319450575
Language: EN, FR, DE, ES & NL

Geoenergy Modeling II Book Review:

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.

Advances in Ground Source Heat Pump Systems

Advances in Ground Source Heat Pump Systems
Author: Simon Rees
Publsiher: Woodhead Publishing
Total Pages: 482
Release: 2016-05-13
ISBN 10: 0081003226
ISBN 13: 9780081003220
Language: EN, FR, DE, ES & NL

Advances in Ground Source Heat Pump Systems Book Review:

Advances in Ground-Source Heat Pump Systems relates the latest information on source heat pumps (GSHPs), the types of heating and/or cooling systems that transfer heat from, or to, the ground, or, less commonly, a body of water. As one of the fastest growing renewable energy technologies, they are amongst the most energy efficient systems for space heating, cooling, and hot water production, with significant potential for a reduction in building carbon emissions. The book provides an authoritative overview of developments in closed loop GSHP systems, surface water, open loop systems, and related thermal energy storage systems, addressing the different technologies and component methods of analysis and optimization, among other subjects. Chapters on building integration and hybrid systems complete the volume. Provides the geological aspects and building integration covered together in one convenient volume Includes chapters on hybrid systems Presents carefully selected chapters that cover areas in which there is significant ongoing research Addresses geothermal heat pumps in both heating and cooling modes