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Ground Source Heat Pumps

Ground Source Heat Pumps Book
Author : Ioan Sarbu,Calin Sebarchievici
Publisher : Academic Press
Release : 2015-10-01
ISBN : 0128042419
Language : En, Es, Fr & De

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Book Description :

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 Ground Source Heat Pump Systems

Advances in Ground Source Heat Pump Systems Book
Author : Simon Rees
Publisher : Woodhead Publishing
Release : 2016-05-13
ISBN : 0081003226
Language : En, Es, Fr & De

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Book Description :

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

Geothermal Heating and Cooling

Geothermal Heating and Cooling Book
Author : Stephen P. Kavanaugh,Kevin D. Rafferty,American Society of Heating, Refrigerating and Air-Conditioning Engineers
Publisher : Unknown
Release : 2014-12-15
ISBN : 9781936504855
Language : En, Es, Fr & De

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Book Description :

"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"--

Geothermal Heat Pumps Installation Guide

Geothermal Heat Pumps  Installation Guide Book
Author : Stephen K. Ewings
Publisher : Stephen K Ewings
Release : 2008-10
ISBN : 0646503782
Language : En, Es, Fr & De

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Book Description :

Download Geothermal Heat Pumps Installation Guide book written by Stephen K. Ewings, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Application Analysis of Ground Source Heat Pumps in Building Space Conditioning

Application Analysis of Ground Source Heat Pumps in Building Space Conditioning Book
Author : Anonim
Publisher : Unknown
Release : 2013
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The adoption of geothermal energy in space conditioning of buildings through utilizing ground source heat pump (GSHP, also known as geothermal heat pump) has increased rapidly during the past several decades. However, the impacts of the GSHP utilization on the efficiency of heat pumps and soil temperature distribution remained unclear and needs further investigation. This paper presents a novel model to calculate the soil temperature distribution and the coefficient of performance (COP) of GSHP. Different scenarios were simulated to quantify the impact of different factors on the GSHP performance, including heat balance, daily running mode, and spacing between boreholes. Our results show that GSHP is suitable for buildings with balanced cooling and heating loads. It can keep soil temperature at a relatively constant level for more than 10 years. Long boreholes, additional space between boreholes, intermittent running mode will improve the performance of GSHP, but large initial investment is required. The improper design will make the COP of GSHP even lower than traditional heat pumps. Professional design and maintenance technologies are greatly needed in order to promote this promising technology in the developing world.

Solar Assisted Ground Source Heat Pump Solutions

Solar Assisted Ground Source Heat Pump Solutions Book
Author : Francesco Reda
Publisher : Springer
Release : 2016-12-09
ISBN : 3319496980
Language : En, Es, Fr & De

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Book Description :

This book analyses solar-assisted ground-source heat pump systems, a technology meant for producing heating and cooling energy for buildings. It focuses on ground source heat pump, reversible central heating and cooling system that transfer heat from or to the ground, applications which use solar thermal collectors. Providing deep insights into energy-saving, solar thermal system operating strategies, it illustrates examples of useful configurations and controlling approach for different climates for different vertical ground heat exchanger depths. Offering an overview of solar assisted ground source heat pump systems, including design principles and energy-performance data for different climates, it is a valuable resource for designers and scientists who focus on building heating and cooling technologies.

Small Geothermal Energy Systems and Geothermal Heat Pumps

Small Geothermal Energy Systems and Geothermal Heat Pumps Book
Author : Department of Energy (DOE),Energy Efficiency and Renewable Energy Office,Geothermal Technologies Program,U. S. Government
Publisher : Unknown
Release : 2017-04-12
ISBN : 9781521057148
Language : En, Es, Fr & De

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Book Description :

This comprehensive compilation of DOE documents provides unique and practical information about geothermal heat pumps, including small geothermal systems and DIY systems. Contents: Chapter 1: Small Geothermal Systems: A Guide For The Do-It-Yourselfer * Chapter 2: Using The Earth To Heat and Cool Buildings * Chapter 3: An Information Survival Kit For The Prospective Geothermal Heat Pump Owner * Chapter 4: Success Stories of the Geothermal Energy Program * Chapter 5: Ground-Source Heat Pumps: Overview of Market Status, Barriers to Adoption, and Options for Overcoming Barriers A heat pump-like an air conditioner or refrigerator-moves heat from one place to another. In the summer, a geothermal heat pump (GHP) operating in a cooling mode lowers indoor temperatures by transferring heat from inside a building to the ground outside or below it. Unlike an air conditioner, though, a heat pump's process can be reversed. In the winter, a GHP extracts heat from the ground and transfers it inside. Also, the GHP can use waste heat from summer air-conditioning to provide virtually free hot-water heating. The energy value of the heat moved is typically more than three times the electricity used in the transfer process. GHPs are efficient and require no backup heat because the earth stays at a relatively moderate temperature throughout the year. A GHP system has three major components: a ground loop (buried piping system), the heat pump itself (inside the house), and a heating and cooling distribution system. There are two main types of GHP systems. The earth-coupled (or closed-loop) GHP uses sealed horizontal or vertical pipes as heat exchangers through which water, or water and antifreeze, transfer heat to or from the ground. The second type, the water-source (or open-loop) GHP, pumps water from a well or other source to the heat exchanger, then back to the source. Because of their versatility, earth-coupled systems dominate the GHP market. Typical loop installations for the earth-coupled systems are expected to work for 50 years. More than 400,000 GHPs are operating in homes, schools, and commercial buildings in the United States. They are adaptable to virtually any kind of building; the Federal government has installed nearly 10,000 GHPs. Geothermal resources are available across the United States at varying depths, providing a ubiquitous buried treasure of domestic renewable energy. Enormous amounts of hydrothermal geothermal energy is available in the western United States, but theoretically, geothermal sources are available across the United States. The key to being able to use geothermal energy is to find a way to enhance geothermal systems lacking key natural characteristics. Natural geothermal systems depend on three factors to produce energy: heat, water, and permeability. While heat is present virtually everywhere at depth, water and permeability are less abundant. Geothermal technology is an attractive renewable resource because it can provide a constant source of renewable baseload electricity. While the sun and wind offer a large potential source of renewable energy that varies over time, geothermal technology is uninterruptible and can provide a stable baseload form of energy while diversifying the nation's renewable portfolio. Geothermal energy has low environmental risk and impact. When used with a closed-loop binary power plant, geothermal systems emit zero greenhouse gas emissions and have a near zero environmental risk or impact.

Geothermal Heat Pumps

Geothermal Heat Pumps Book
Author : Karl Ochsner
Publisher : Routledge
Release : 2012-04-27
ISBN : 1136564985
Language : En, Es, Fr & De

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Book Description :

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.

Residential Ground Source Heat Pump Design Guide

Residential Ground Source Heat Pump Design Guide Book
Author : Anonim
Publisher : Unknown
Release : 1993
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Residential Ground Source Heat Pump Design Guide book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Dynamic Modeling and Control of Hybrid Ground Source Heat Pump Systems

Dynamic Modeling and Control of Hybrid Ground Source Heat Pump Systems Book
Author : Chang Chen
Publisher : Unknown
Release : 2008
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Dynamic Modeling and Control of Hybrid Ground Source Heat Pump Systems book written by Chang Chen, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Heating and Cooling with Ground Source Heat Pumps in Cold and Moderate Climates

Heating and Cooling with Ground Source Heat Pumps in Cold and Moderate Climates Book
Author : Taylor & Francis Group
Publisher : Unknown
Release : 2022-04-30
ISBN : 9780367469870
Language : En, Es, Fr & De

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Book Description :

Download Heating and Cooling with Ground Source Heat Pumps in Cold and Moderate Climates book written by Taylor & Francis Group, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Advanced Modeling of Vertical Ground Source Heat Pumps Using Finite Element Techniques

Advanced Modeling of Vertical Ground Source Heat Pumps Using Finite Element Techniques Book
Author : Seyed Omid Komari Zadeh,California State University, Sacramento
Publisher : Unknown
Release : 2011
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Increasing energy demand and environmental pollution in United States has been led toward using renewable energy sources over recent decades. Ground-source heat pump systems are one of the promising new energy technologies that have shown rapid increase in usage over the past ten years in the United States. Low efficiency and lack of design guidelines are still the limits of GSHP systems. This paper studies the effects of heat conduction in boreholes used in geothermal heat pump systems. The purpose of this study was to determine the temperature distribution in ground source heat pump system by studying and modeling the ground bore and compare it to proposed design system based on advanced heat transfer and finite elements techniques. Solid Works software, version 2010 is utilized to simulate and calculate each system by using finite elements methods. Findings and Conclusions: The ground loop heat exchanger model was successfully implemented in the Solid Works program. The primary objective of this study is: examine effects of ground-boreholes on closed-loop GSHP systems, develop a design and simulation tool for modeling the performance of a ground Loop Heat Exchanger on closed-loop GSHP systems, and comparing the effects of boreholes different configuration in energy distribution on closed-loop GSHP systems. Simulation result based on the mathematical background which is presented in chapter 2 and 3, have an excellent agreement with the purpose of this thesis and showed the significant energy saving. The solid and hollow cylindrical bores simulate in steady state and transient cases. The results demonstrate around 5.8 % saving in energy consumption by applying a proposed system.

An Introduction to Thermogeology

An Introduction to Thermogeology Book
Author : David Banks
Publisher : John Wiley & Sons
Release : 2012-05-30
ISBN : 1118447506
Language : En, Es, Fr & De

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Book Description :

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.

Commercial Ground Source Heat Pump Design Guide

Commercial Ground Source Heat Pump Design Guide Book
Author : Anonim
Publisher : Unknown
Release : 1993
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Commercial Ground Source Heat Pump Design Guide book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Heating and Cooling with Ground Source Heat Pumps in Cold and Moderate Climates

Heating and Cooling with Ground Source Heat Pumps in Cold and Moderate Climates Book
Author : Taylor & Francis Group
Publisher : Unknown
Release : 2022-04-30
ISBN : 9780367466558
Language : En, Es, Fr & De

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Book Description :

Download Heating and Cooling with Ground Source Heat Pumps in Cold and Moderate Climates book written by Taylor & Francis Group, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Using Ground Source Heat Pump Systems for Heating Cooling of Buildings

Using Ground Source Heat Pump Systems for Heating Cooling of Buildings Book
Author : Ioan Sarbu
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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.

Development of an Integrated Building Load ground Source Heat Pump Model as a Test Bed to Assess Short and Long term Heat Pump and Ground Loop Performance

Development of an Integrated Building Load ground Source Heat Pump Model as a Test Bed to Assess Short  and Long term Heat Pump and Ground Loop Performance Book
Author : Jonathan Louis Gaspredes
Publisher : Unknown
Release : 2011
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Ground source heat pumps (GSHP) have the ability to significantly reduce the energy required to heat and cool buildings. Historically, deployment of GSHP's in the cooling-dominated Texas and Southwest region has been significantly less than in other regions of the United States. The long term technical and economic viability of GSHPs in arid regions such as Texas has been questioned due to failures of ground loop heat pump systems by early adopters. A proposed solution is to include a supplemental heat rejection (SHR) device to help offset the unbalanced ground loads. An integrated building load-ground source heat pump model is developed in this thesis and is designed to be a test bed for potential SHR devices. The model consists of discrete component models that can be mixed and matched to represent various types of buildings and ground source heat pumps. One of the unique features of the integrated model is the use of the Simulink/Matlab environment. This environment allows the user to develop component models that take advantage of the built-in functionality of Matlab and Simulink. Another unique feature is the full coupling of the building load, heat pump, and ground loop at every time step. The building load, heat pump, and ground loop models were chosen to allow for short time step simulations, which allows for a range of dynamic response times to be modeled and for different heat pump/SHR control methods to be explored. The integrated model can be used on any computer that has the Matlab and Simulink software. The building load model used, called HAMBASE, can model both residential and commercial buildings. HAMBASE was validated using the ASHRAE 140-2007 standard. The heat pump model uses readily available data provided by GSHP manufacturers to accurately model operation across a wide range of input conditions. The vertical borehole ground loop model, developed at Oklahoma State University, is based on Eskillson's g-function model, but included a one-dimensional numerical model to calculate the short term thermal response of the borehole and ground. The ground loop model utilizes GLHEPRO, a ground loop sizing and simulation tool, to create the required parameter files. Using the integrated building load-ground source heat pump model, a model of a single family house with a ground source heat pump was developed. The house model was validated by the results from eQuest and GELHPRO. A series of sensitivity studies were completed to determine dominant factors affecting the use of GSHPs in Texas and the Southwest regions of the United States. The results show that the life of a vertical borehole can be significantly extended/cut short if the ground parameters are properly/not properly designed prior to ground loop sizing.

Trends in Green Design Making Ground Source Heat Pumps the System of Choice

Trends in  Green  Design   Making Ground Source Heat Pumps the System of Choice Book
Author : Anonim
Publisher : Unknown
Release : 2008
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Ground source heat pump systems have been around for nearly 50 years. The efficiencies that can be achieved today are difficult to match with any other type of heating and air conditioning system. With the familiarity of the system, installed costs have become very reasonable, and in some cases have been the same or less expensive than other comparable systems. Given all this, the question remains - why aren't more of these systems being proposed and installed? This report will investigate some of the reasons why and what can be done to remedy them. Major issues include professional education, availability of research and design material, industry or governmental incentives, and education in our K-12 schools and universities. Certainly all participants in the design process, from the designer to the owner, play a part in this dilemma. Recommendations will be made that address key hurdles this industry faces regarding making ground source heat pumps the system of choice.

Ground Source Heat Pumps GSHP for Heating and Cooling in Greece

Ground Source Heat Pumps  GSHP  for Heating and Cooling in Greece Book
Author : Anonim
Publisher : Unknown
Release : 2006
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Ground Source Heat Pumps GSHP for Heating and Cooling in Greece book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.