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Advances In Ground Source Heat Pump Systems

Author : Simon Rees
ISBN : 9780081003220
Genre : Technology & Engineering
File Size : 49. 91 MB
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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

Author : Ioan Sarbu
ISBN : 9780128042410
Genre : Technology & Engineering
File Size : 63. 60 MB
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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

Author : Basel I. Ismail
ISBN : 9789535122418
Genre : Science
File Size : 83. 89 MB
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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.

Investigations Of Novel Heat Pump Systems For Low Carbon Homes

Author : B. Mempouo
ISBN : OCLC:1064843105
Genre :
File Size : 59. 89 MB
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The European standard EN15450 states that the Coefficient of Performance (COP) target range for a Ground Source Heat Pump (GSHP) installation should lie within the range of 3.5 to 4.5; when used for heating a building, and a typical Air-Source Heat Pump (ASHP) has a COP of 2.0 to 3.0 at the beginning of the heating season and then decrease gradually as the ambient air becomes cooler, whereas a typical GSHP is in the range of 3.5 –4.0, also at the beginning of the heating season and then decrease gradually as heat is drawn from the ground. For these reasons, in the middle of winter, when the COP drop, the heat pumps can generally only be considered as a 'pre-heating' method for producing higher temperature heat such as domestic hot water. In addition soil presents certain difficulties, due to the high cost of drilling to position coils in the ground compare to air source, although frost formation on the evaporator in winter limits also limit the use of air source. Though technology advances or are needed to overcome those issues. The aims of this project, therefore, were firstly to reduce the drilling length of the ground heat exchanger of the ground source heat pumps and to maintain high COPs of the air and ground source heat pumps from beginning to the end of the heating season; and secondly to develop a viable alternative evaporator for air source heat pumps to reduce frost formation during winter. These were achieved; the first aim through the combination of ground loops with solar-air panels or solar roof/collectors roof to ground heat exchangers loops to reduce the length of the boreholes, and to reduce the freezing effects around the boreholes, hence increase or maintain a constant temperature during heating season. The second aim was also achieved through development and validation of novel air source heat pump evaporator, using Direct Expansion (DX) black flat plate absorber or/and vacuum tubes for frost reduction. In this thesis, in order to achieve the above aims; four aspects of investigations have been independently investigated as following: 1- Preliminary investigation on Direct Expansion (DX) Solar Source Heat Pump system. 2- Investigation on the performance of the DX- PV/heat pipe heat pump system to reduce frost and enhance the COP of the air source heat pumps, 3- A small scale testing on the heat injection on energy piles for residential buildings for earth charging by means of solar roof/collectors 4- A field trial testing of the performance of the combination of solar-air thermal collectors with conventional GSHP with shorter ground heat exchangers (48m deep) to charge the ground and reduce freezing effects around the piles after heating cycle. From the simulation results, the novel PV/hp-HP system has a COP ranging from 4.65 to 6.16 with an average of 5.35. The condenser capacity ranging from 33 to 174 W would provide the heat source for space heating and domestic hot water. The energy performance of the novel PV/hp-heat pump was not as good as expected due to the low solar radiation. It should be much better in some low latitude locations with better solar radiation. The results of this thesis have shown that the length of ground source boreholes could be considerably reduce by about 60% compare to conventional boreholes using a combination of solar-air collectors with the GSHP and the average COP of 3.7 was achieved.

Advances In Heat Pump Assisted Drying Technology

Author : Vasile Minea
ISBN : 9781315352671
Genre : Science
File Size : 45. 20 MB
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Drying of solids is one of the most common, complex, and energy-intensive industrial processes. Conventional dryers offer limited opportunities to increase energy efficiency. Heat pump dryers are more energy and cost effective, as they can recycle drying thermal energy and reduce CO2, particulate, and VOC emissions due to drying. This book provides an introduction to the technology and current best practices and aims to increase the successful industrial implementation of heat pump- assisted dryers. It enables the reader to engage confidently with the technology and provides a wealth of information on theories, current practices, and future directions of the technology. It emphasizes several new design concepts and operating and control strategies, which can be applied to improve the economic and environmental efficiency of the drying process. It answers questions about risks, advantages vs. disadvantages, and impediments and offers solutions to current problems. Discusses heat pump technology in general and its present and future challenges. Describes interesting and promising innovations in drying food, agricultural, and wood products with various heat pump technologies. Treats several technical aspects, from modeling and simulation of drying processes to industrial applications. Emphasizes new design concepts and operating and control strategies to improve the efficiency of the drying process.

Advances In Enhanced Heat Transfer 1985

Author :
ISBN : PSU:000011019534
Genre : Heat
File Size : 85. 86 MB
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Advances In Environmental Technologies

Author : Ji Zhao
ISBN : 9783038261230
Genre : Technology & Engineering
File Size : 30. 52 MB
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Selected, peer reviewed papers from the 2013 2nd International Conference on Energy and Environmental Protection (ICEEP 2013), April 19-21, 2013, Guilin, China

Advances In Heat Exchanger Design Radiation And Combustion 1991

Author : American Society of Mechanical Engineers. Winter Annual Meeting
ISBN : UOM:39015024991187
Genre : Technology & Engineering
File Size : 23. 65 MB
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Heat Pumps

Author : Takamoto Saitō
ISBN : UOM:39015019637738
Genre : Heat pumps
File Size : 69. 51 MB
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Ashrae Transactions

Author : American Society of Heating, Refrigerating and Air-Conditioning Engineers
ISBN : UCSD:31822023362866
Genre : Air conditioning
File Size : 90. 19 MB
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Ashrae Journal

Author :
ISBN : UCSD:31822008313256
Genre : Air conditioning
File Size : 70. 40 MB
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Science And Technology For A Sustainable Energy Future

Author : Marilyn A. Brown
ISBN : UOM:39015043202426
Genre : Energy conservation
File Size : 90. 91 MB
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Introduction -- The Changing Marketplace -- Overview of the Program -- Strong Partnerships with Industry and Universities -- Advisory Boards and Technical Review Committees -- Program Sponsorship -- Subcontracting -- Cooperative R&D -- User Facilities -- Educational Programs -- Unique Research Facilities -- Indicators of Success -- Scientific Awards and Peer Recognition -- Parents and Licensing -- Commercialized Technologies -- Satisfied Customers -- Highlight: What our Customers are Saying -- Building Technologies -- Building Envelope Systems -- Building Materials -- Heating and Cooling Equipment -- Electric-Powered Heap Pumps -- Thermally Activated Heat Pumps -- Refrigeration Systems -- Existing Buildings -- Technology Transfer -- Highlights: From R-3 to R-30 in Thirty Years, 17 / ORNL Software Helps Industry Design Better Heat Pumps, 19 / Heating and Cooling with Low Electric Demand - The Generator-Absorber Heat Exchange, 22 / Next-Generation Gas Chillers on the Brink of Market Introduction, 24 / Improving Supermarket Refrigeration, 24 / CFC/HCFC Alternatives for the Buildings Sector, 26 / Measuring Particle Drift Velocity to Identify In Situ Refrigerant Mixtures, 27 / Rebuild America, 29 / The Interactive Zip Code Insulation Program (ZIP), 32 / Collaborating with a Historically Black University, 33 -- Transportation Technologies -- Partnership for a New Generation of Vehicles -- Transportation Materials -- Ceramic Technology -- Lightweight Materials -- Alternative Fuels Materials Issues -- Tribology -- Alternative Fuels -- Biofuels Feedstock Development -- Poplar Breeding Success -- Alternative Fuels Utilization -- Bioreactors for Alcohol Fuel Production -- Propulsion Systems -- Automotive Propulsion Technology -- Environmental Control Technology -- Transportation Data and Policy Analysis

Lighting Design Application

Author :
ISBN : UIUC:30112048829474
Genre : Electric lighting
File Size : 84. 29 MB
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Geothermal Energy Technology And Geology

Author : Jianwen Yang
ISBN : 1629482862
Genre : Technology & Engineering
File Size : 88. 46 MB
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Geothermal energy is reliable, sustainable and environmentally friendly with less greenhouse emission, and therefore is drawing increasing attention recently due to its role in serving as a complement to fossil fuels and in mitigating global warming. This book presents a diversity of topical case studies in geothermal energy, technology and geology. The collection of topics aims to present recent advances in research and application of geothermal energy systems, including ground source heat pump systems and the environmental pollution control; geological occurrence of the thermal aquifers in northeastern Slovenia; relationships between fracture zones, flow pathways and mineral precipitation corresponding to an enhanced geothermal system in France; and geological and tectonic framework favoring the occurrence of geothermal systems in Western Anatolia, Turkey.

Advances In Heat Pumps 1989

Author : American Society of Mechanical Engineers. Winter Meeting
ISBN : UOM:39015017701965
Genre : Heat
File Size : 63. 60 MB
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Advances In Sustainable Energy

Author : Ahmad Vasel
ISBN : 9783030056360
Genre : Technology & Engineering
File Size : 20. 94 MB
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This book reveals key challenges to ensuring the secure and sustainable production and use of energy resources, and provides corresponding solutions. It discusses the latest advances in renewable energy generation, and includes studies on climate change and social sustainability. In turn, the book goes beyond theory and describes practical challenges and solutions associated with energy and sustainability. In particular, it addresses: · renewable energy conversion technologies; · transmission, storage and consumption; · green buildings and the green economy; and · waste and recycling. The book presents the current state of knowledge on renewable energy and sustainability, supported by detailed examples and case studies, making it not only a cutting-edge source of information for experts and researchers in the field, but also an educational tool for related undergraduate and graduate courses.

Synerjy

Author :
ISBN : UVA:X006072694
Genre : Renewable energy sources
File Size : 47. 19 MB
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Advances In Enhanced Heat Transfer

Author :
ISBN : UOM:39015009801740
Genre : Heat
File Size : 31. 2 MB
Format : PDF
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Energy Research Abstracts

Author :
ISBN : MSU:31293010869349
Genre : Power resources
File Size : 64. 61 MB
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Geothermal Energy

Author : William E. Glassley
ISBN : 9781420075717
Genre : Science
File Size : 89. 29 MB
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Historically, cost effective, reliable, sustainable, and environmentally friendly, use of geothermal energy has been limited to areas where obvious surface features pointed to the presence of a shallow local heat source, such as hot springs and volcanoes. However, recent technological advances have dramatically expanded the range and size of viable

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