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Advances in Ground-Source Heat Pump Systems

Advances in Ground-Source Heat Pump Systems
  • Author : Simon Rees
  • Publisher :Unknown
  • Release Date :2016-05-13
  • Total pages :482
  • ISBN : 9780081003220
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Summary : 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

Ground-Source Heat Pumps

Ground-Source Heat Pumps
  • Author : Ioan Sarbu,Calin Sebarchievici
  • Publisher :Unknown
  • Release Date :2015-10-01
  • Total pages :216
  • ISBN : 9780128042410
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Summary : Ground-Source Heat Pumps presents the theory and some of the most recent advances of GSHPs and their implementation in the heating/cooling system of buildings. The authors explore the thermodynamic cycle with calculation, operation regimes and economic indicators and GHG emissions of a vapor compression heat pump. They go on to examine substitution strategies of non-ecological refrigerants and types of compressors and heat pumps, before delving into the different GSHP systems, as well as their compared economic, energy and environmental performances using classical and optimized adjustment for various operating modes. Surface water heat pumps and ground water heat pumps are covered, and special focus is given to both vertical and horizontal ground-coupled heat pump systems, for which modelling and simulation is discussed, and experimental systems are described. Due to its advanced approach to the subject, this book will be especially valuable for researchers, graduate students and academics, and as reference for engineers and specialists in the varied domains of building services. Explores fundamentals and state-of-the-art research, including ground-coupled heat pump (GCHP) systems. Includes performance assessment and comparison for different types of GSHP, numerical simulation models, practical applications of GSHPs with details on the renewable energy integration, information on refrigerants, and economic analysis.

Advances in Geothermal Energy

Advances in Geothermal Energy
  • Author : Basel I. Ismail
  • Publisher :Unknown
  • Release Date :2016-01-20
  • Total pages :176
  • ISBN : 9789535122418
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Summary : Geothermal energy means the natural heat energy from the Earth. The geothermal resources of the Earth are huge and unlike other conventional and renewable energy sources, geothermal energy has unique features; namely, it is available, stable at all times throughout the year, independent of weather conditions, and has an inherent storage capability. Geothermal energy is also considered to be an environmentally friendly clean energy source that could significantly contribute to the reduction of GHG emissions. The utilization of geothermal energy is usually divided into the part used for electricity generation and the part used for heating applications. Due to its important utilization and future prospects, various interesting topics of research related to geothermal energy are covered in this book. This book is the result of contributions from several researchers and experts worldwide. It is hoped that the book will become a useful source of information and basis for extended research for researchers, academics, policy makers, and practitioners in the area of geothermal energy.

Geothermal Heat Pumps

Geothermal Heat Pumps
  • Author : Karl Ochsner
  • Publisher :Unknown
  • Release Date :2012-04-27
  • Total pages :224
  • ISBN : 9781136564987
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Summary : Geothermal Heat Pumps is the most comprehensive guide to the selection, design and installation of geothermal heat pumps available. This leading manual presents the most recent information and market developments in order to put any installer, engineer or architect in the position to design, select and install a domestic geothermal heat pump system. Internationally respected expert Karl Ochsner presents the reasons to use heat pumps, introduces basic theory and reviews the wide variety of available heat pump models.

An Introduction to Thermogeology

An Introduction to Thermogeology
  • Author : David Banks
  • Publisher :Unknown
  • Release Date :2012-05-30
  • Total pages :544
  • ISBN : 9781118447505
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Summary : This authoritative guide provides a basis for understanding theemerging technology of ground source heating and cooling. It equipsengineers, geologists, architects, planners and regulators with thefundamental skills needed to manipulate the ground's huge capacityto store, supply and receive heat, and to implement technologies(such as heat pumps) to exploit that capacity for space heating andcooling. The author has geared the book towards understanding groundsource heating and cooling from the ground side (the geologicalaspects), rather than solely the building aspects. Heexplains the science behind thermogeology and offers practicalguidance on different design options. An Introduction to Thermogeology: ground source heating andcooling is aimed primarily at professionals whose skill areasimpinge on the emerging technology of ground source heating andcooling. They will be aware of the importance of the technology andwish to rapidly acquire fundamental theoretical understanding anddesign skills. This second edition has been thoroughly updated and expanded tocover new technical developments and now includes end-of-chapterstudy questions to test the reader's understanding.

Geothermal Heat Pump and Heat Engine Systems

Geothermal Heat Pump and Heat Engine Systems
  • Author : Andrew D. Chiasson
  • Publisher :Unknown
  • Release Date :2016-09-19
  • Total pages :496
  • ISBN : 9781118961940
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Summary : A unique approach to the study of geothermal energy systems This book takes a unique, holistic approach to the interdisciplinary study of geothermal energy systems, combining low, medium, and high temperature applications into a logical order. The emphasis is on the concept that all geothermal projects contain common elements of a "thermal energy reservoir" that must be properly designed and managed. The book is organized into four sections that examine geothermal systems: energy utilization from resource and site characterization; energy harnessing; energy conversion (heat pumps, direct uses, and heat engines); and energy distribution and uses. Examples are provided to highlight fundamental concepts, in addition to more complex system design and simulation. Key features: Companion website containing software tools for application of fundamental principles and solutions to real-world problems. Balance of theory, fundamental principles, and practical application. Interdisciplinary treatment of the subject matter. Geothermal Heat Pump & Heat Engine Systems: Theory and Practice is a unique textbook for Energy Engineering and Mechanical Engineering students as well as practicing engineers who are involved with low-enthalpy geothermal energy systems.

Geothermal Heat Pumps: Installation Guide

Geothermal Heat Pumps: Installation Guide
  • Author : Stephen K. Ewings
  • Publisher :Unknown
  • Release Date :2008-10
  • Total pages :246
  • ISBN : 9780646503783
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Summary :

Ground-source Heat Pumps

Ground-source Heat Pumps
  • Author : Stephen P. Kavanaugh,Kevin D. Rafferty
  • Publisher :Unknown
  • Release Date :1997
  • Total pages :167
  • ISBN : 1883413524
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Summary :

Geothermal Heating and Cooling

Geothermal Heating and Cooling
  • Author : Stephen P. Kavanaugh,Kevin D. Rafferty,American Society of Heating, Refrigerating and Air-Conditioning Engineers
  • Publisher :Unknown
  • Release Date :2014-12-15
  • Total pages :440
  • ISBN : 1936504855
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Summary : "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"--

Analysis of Operating Modes of a Ground Source Heat Pump with Short Helical Heat Exchangers

Analysis of Operating Modes of a Ground Source Heat Pump with Short Helical Heat Exchangers
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2015
  • Total pages :229
  • ISBN : OCLC:1052046766
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Summary : Highlights: The work focuses on the short helical-shaped pipe ground heat exchanger. Multi-year integrated simulations of ground source heat pumps are carried out. The simulation tool is validated with field measurements in cooling operation. The effect of operating modes on the energy efficiency of the heat pump is shown. The influence of grouting material and diameter of heat exchanger is analysed. Abstract: This study focuses on different operating modes of a ground source heat pump system in residential buildings. Ground coupling was made using a closed loop system consisting of a helical shaped pipe installed at a shallow depth. Few studies have examined this particular ground heat exchanger. The analysis was carried out using a detailed numerical model capable of considering the geometry of the helical ground heat exchanger as well as the effects of axial thermal conduction and the weather at ground level, variables which cannot be ignored when shallow depths are being investigated. Field measurements were used to validate the model before it was utilized. In addition, the simulation tool considered the entire ground source heat pump system, including both the borehole field and the heat pump. The energy efficiency of the heat pump in three operating modes (continuous daytime, continuous nighttime, and intermittent mode) over a ten year period was analysed. The simulations were performed in two different climatic zones maintaining the daily energy load of the building unmodified. Finally, the effect of the grouting material of the helical ground heat exchanger and of the diameters of both the borehole and the helix on the system's energy performance was also investigated. Results indicated that the seasonal energy efficiency of the heat pump was approximately the same for the three operating modes and that energy efficiency was nearly constant during the day when the system was operating on an hourly intermittent basis. When the borehole diameter was smaller, the reduction in the heat exchange surface needed to be balanced by a thermally enhanced grouting material.

Ground Source Heat Pumps

Ground Source Heat Pumps
  • Author : M. A. Abdul Aziz
  • Publisher :Unknown
  • Release Date :2006
  • Total pages :125
  • ISBN : OCLC:1109572955
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Summary :

Geothermal Energy

Geothermal Energy
  • Author : Marc A. Rosen,Seama Koohi-Fayegh
  • Publisher :Unknown
  • Release Date :2017-01-30
  • Total pages :312
  • ISBN : 9781119180982
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Summary : Geothermal Energy: Sustainable Heating and Cooling Using the Ground Marc A. Rosen and Seama Koohi-Fayegh, University of Ontario Institute of Technology, Canada 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.

Modern Geothermal HVAC Engineering and Control Applications

Modern Geothermal HVAC Engineering and Control Applications
  • Author : Jay Egg,Greg Cunniff,Carl Orio
  • Publisher :Unknown
  • Release Date :2013-06-05
  • Total pages :448
  • ISBN : 9780071792691
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Summary : Best practices for the design and engineering of geothermal HVAC systems With a focus on market needs and customer goals, this practical guide explains how to realize the full potential of geothermal HVAC by integrating hydronic systems and controls at maximum capacity. Modern Geothermal HVAC: Engineering and Control Applications explains how to engineer and specify geothermal HVAC for building projects in varying geographic regions. Typical details on control parameters are provided. By using the proven methods in this innovative resource, you will be able to develop highly efficient, long-lasting, and aesthetically pleasing geothermal HVAC systems. Coverage includes: Low-temperature geothermal or earth coupling Geothermal heat-pump equipment Variations in earth coupling Application of earth coupling with regard to site conditions Closed-loop earth coupling and fusion Intermediate heat exchanger usage in geothermal applications Standing column and open geothermal systems Fundamentals of comfort, psychrometrics, and thermodynamics Hydronic and air HVAC system basics Hydronic HVAC system equipment Variations and improvements to hydronic systems Control systems Load sharing and energy recovery Calculating system efficiencies, heat gain, and loss Geothermal rebates, incentives, and renewables legislation

Performance and Viability of Solar-assisted Ground Source Heat Pumps

Performance and Viability of Solar-assisted Ground Source Heat Pumps
  • Author : F. Salomon
  • Publisher :Unknown
  • Release Date :2006
  • Total pages :130
  • ISBN : OCLC:1109609801
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Summary :

Heat Pumps for the Home

Heat Pumps for the Home
  • Author : John Cantor
  • Publisher :Unknown
  • Release Date :2020-11-23
  • Total pages :160
  • ISBN : 9781785007804
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Summary : In recent years, heat pumps have emerged as a promising new form of technology with a relatively low environmental impact. Moreover, they have presented householders with an opportunity to reduce their heating bills. Heat pumps can heat a building by 'pumping' heat from either the ground or the air outside: an intriguing process which utilizes principles that are somewhat analogous to those employed in the domestic refrigerator. Armed with the practical information contained in these pages, homeowners will have the necessary knowledge to take advantage of this potentially low-carbon technology to heat their properties. Now in an updated new edition, Heat Pumps for the Home describes what a heat pump is, how it works, the different methods of pumping heat and the importance of an appropriate and well-planned installation. It also provides you with the information that you need in order to make up your own mind about whether a heat pump might be appropriate to your own circumstances, and also demonstrates what you need to do to in order to make the system work efficiently.

Methodology for the Evaluation of a 4000-home Geothermal Heat Pump Retrofit at Fort Polk, Louisiana

Methodology for the Evaluation of a 4000-home Geothermal Heat Pump Retrofit at Fort Polk, Louisiana
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1998
  • Total pages :48
  • ISBN : OCLC:1065620183
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Summary : The US Army and a private energy service company are developing a comprehensive energy efficiency project to upgrade the family housing at Fort Polk, Louisiana. The project includes converting the space conditioning systems of more than 4,000 housing units to geothermal (or ground-source) heat pumps (GHPs). This interim report describes the methodology of the evaluation associated with this project, including the field monitoring that has been conducted at the base.

Perspectives For Geothermal Energy In Europe

Perspectives For Geothermal Energy In Europe
  • Author : Bertani Ruggero
  • Publisher :Unknown
  • Release Date :2017-03-24
  • Total pages :304
  • ISBN : 9781786342331
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Summary : The potential for energy transformation from geothermal heat is limitless. For millennia natural sources of this energy, in the form of thermal springs, have been used by populations for heating, cooking and bathing. Modern-day usage has been extended to electricity generation from binary cycle power plants, heat extraction from geothermal heat pumps and use in greenhouses for industrial crop growing. Perspectives for Geothermal Energy in Europe highlights the status of geothermal energy in countries where natural sources of this energy are available. It concludes with a presentation of current geothermal policy and regulations within Europe, and discussion of how this fits in with the EU Energy and Climate Framework. Suitable for students, academics and practitioners in the fields of energy studies, geology and the earth sciences, electrical engineering and environmental economics, this book is the first comprehensive review of the practicalities of geothermal extraction and use in Europe.

Using Ground-Source Heat Pump Systems for Heating/Cooling of Buildings

Using Ground-Source Heat Pump Systems for Heating/Cooling of Buildings
  • Author : Ioan Sarbu
  • Publisher :Unknown
  • Release Date :2016
  • Total pages :229
  • ISBN : OCLC:1154196339
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Summary : This chapter mainly presents a detailed theoretical study and experimental investigations of ground-source heat pump (GSHP) technology, concentrating on the ground-coupled heat pump (GCHP) systems. A general introduction on the GSHPs and its development, and a description of the surface water (SWHP), ground-water (GWHP), and ground-coupled heat pumps are briefly performed. The most typical simulation and ground thermal response test models for the vertical ground heat exchangers (GHEs) currently available are summarized. Also, a new GWHP using a heat exchanger with special construction, tested in laboratory, is well presented. The second objective of the chapter is to compare the main performance parameters (energy efficiency and CO2 emissions) of radiator and radiant floor heating systems connected to a GCHP. These performances were obtained with site measurements in an office room. Furthermore, the thermal comfort for these systems is compared using the ASHRAE Thermal Comfort program. Additionally, two numerical simulation models of useful thermal energy and the system coefficient of performance (COPsys) in heating mode are developed using the TRNSYS (Transient Systems Simulation) software. Finally, the simulations obtained in TRNSYS program are analysed and compared to experimental measurements.

Geothermal HVAC

Geothermal HVAC
  • Author : Jay Egg,Brian Howard
  • Publisher :Unknown
  • Release Date :2010-11-05
  • Total pages :320
  • ISBN : 9780071746113
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Summary : In-depth, practical details on geothermal HVAC systems This definitive guide covers commercial and residential geothermal heating, ventilation, and air conditioning technologies and explains how to take advantage of their money- and energy-saving features. Geothermal HVAC: Green Heating and Cooling reviews the array of choices currently available, offers market values for systems based on varying options and conditions, and describes how to pair the best systems for each application and budget. Whether you're a contractor or a consumer, you'll find out what you need to know to implement a geothermal HVAC system in a retrofit or new construction project, and start benefiting from this sustainable, affordable technology. Find out how to: Learn the basic types of heat transfer--convection, conduction, and radiation Understand how geothermal earth-coupled heat pumps work Determine which ground loops to use for earth coupling to best meet the demands of the site Use load sharing to channel the heat differential of one device into useful energy for another Calculate system efficiencies and heat gain and loss Understand geothermal project proposals and system pricing Benefit from incentives, tax credits, and rebates for geothermal HVAC systems Calculate your long-term return on investment Verify that your installed system is working as intended Troubleshoot your system and avoid common problems

Heat Pumps

Heat Pumps
  • Author : Walter Grassi
  • Publisher :Unknown
  • Release Date :2017-08-11
  • Total pages :175
  • ISBN : 9783319621999
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Summary : The text describes the main features of currently available heat pumps, focusing on system operation and interactions with external heat sources. In fact, before choosing a heat pump, several aspects must be assessed in detail: the actual climate of the installation site, the building’s energy requirements, the heating system, the type of operation etc. After discussing the general working principles, the book describes the main components of compression machines – for EHPs, GHPs and CO2 heat pumps. It then addresses absorption heat pumps and provides additional details on the behavior of two-fluid mixtures. The book presents a performance comparison for the different types, helping designers choose the right one for their needs, and discusses the main refrigerants. Notes on helpful additional literature, websites and videos, also concerning relevant European regulations, round out the coverage. This book will be of interest to all engineers and technicians whose work involves heat pumps. It will also benefit students in energy engineering degree programs who want to deepen their understanding of heat pumps.

Simulation-based Analysis of a Ground Source Heat Pump System Using Super-long Flexible Heat Pipes Coupled Borehole Heat Exchanger During Heating Season

Simulation-based Analysis of a Ground Source Heat Pump System Using Super-long Flexible Heat Pipes Coupled Borehole Heat Exchanger During Heating Season
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2018
  • Total pages :229
  • ISBN : OCLC:1051938741
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Summary : Highlights: A hybrid ground source heat pump system with boreholes incorporating heat pipes. A coupled model of the heat pump performance and heat transfer in heat pipes. The transient temperature variations near boreholes are predicted with Fluent. Investigations on long-term energy performance of this system for space heating. Analysis and comparison on the energy consumption of heat-carrier circulation. Abstract: A hybrid ground source heat pump system employing the super-long flexible heat pipes to extract heat from ground is proposed in this work. To evaluate its energy performance and the temperature recovery characteristics near boreholes during space heating season, a comprehensive simulation model was developed considering the dynamic performance of heat pump and the heat transfer of heat pipes and surrounded soil. The results show that the depth of boreholes should be not less 70m to guarantee a higher long-term energy efficiency. The seasonal coefficient of performance increases with increasing groundwater advection velocity and decreasing building load, with a maximum value up to 4.2 under examined conditions. The short-term variations of ground temperature near boreholes are sensitive to the borehole depth and building load. The overall ground temperature continuously decreases under the condition with no groundwater advection throughout the heating season, but with the presence of groundwater advection, the variation tendency would almost level out after several days of decrease. In addition, it is also revealed that this system has a potential to reduce the ratio of the electrical consumption of circulation pumps to the total consumption, with a reduction of about 7%, showing an advantage of saving energy over the traditional ground-source heat pumps.