Download or read book Energy Savings from Dual source Heat Pump Technology written by and published by . This book was released on 2000 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Ground Source Heat Pump Systems written by Simon Rees and published by Woodhead Publishing. This book was released on 2016-05-13 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Design of Heat Exchangers for Heat Pump Applications written by Marco Fossa and published by MDPI. This book was released on 2020-12-28 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat pumps (HPs) allow for providing heat without direct combustion, in both civil and industrial applications. They are very efficient systems that, by exploiting electrical energy, greatly reduce local environmental pollution and CO2 global emissions. The fact that electricity is a partially renewable resource and because the coefficient of performance (COP) can be as high as four or more, means that HPs can be nearly carbon neutral for a full sustainable future. The proper selection of the heat source and the correct design of the heat exchangers is crucial for attaining high HP efficiencies. Heat exchangers (also in terms of HP control strategies) are hence one of the main elements of HPs, and improving their performance enhances the effectiveness of the whole system. Both the heat transfer and pressure drop have to be taken into account for the correct sizing, especially in the case of mini- and micro-geometries, for which traditional models and correlations can not be applied. New models and measurements are required for best HPs system design, including optimization strategies for energy exploitation, temperature control, and mechanical reliability. Thus, a multidisciplinary approach of the analysis is requested and become the future challenge.
Download or read book Heat Pump Technology for Saving Energy written by M. J. Collie and published by William Andrew. This book was released on 1979 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Modeling and Control of Hybrid Ground Source Heat Pump Systems written by Chang Chen and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ground source heat pump (GSHP) systems are one of the fastest growing applications of renewable energy in the world with annual increases of 10% over the past decade. GSHPs are potentially more efficient than conventional air-to-air heat pumps as they use the relatively constant temperature of the geothermal energy to provide heating or cooling to conditioned rooms at desired temperature and relative humidity. More importantly, GSHP systems can in fact achieve significant energy savings year round, compared to conventional HVAC systems. A hybrid ground source heat pump (HGSHP) system is designed in this study to heat and cool an office building all the year round. Dynamic models of each component of the heat pump system are developed for simulations of heat transfer between each component of the HGSHP system and for control strategy design and analysis. A detailed multiple-load aggregation algorithm (MLAA) is adapted from the literature to precisely account for and calculate the transient heat conduction in vertical ground heat exchangers with different yearly, monthly, and daily pulses of heat. Feedback PI controllers for heat pump units and On/Off controllers for boiler and cooling tower are designed and utilized to match anticipated building loads and to analyze transient response characteristics of such outputs as water flow rate and air flow rate of heat pumps, return water temperature and supply air temperature of heat pumps, water temperatures of ground loops and heat exchangers, water temperature of boiler or cooling tower, and fuel flow rate of boiler. Control strategies for the HGSHP system in both heating and cooling modes of operation are also introduced to study the system responses. With the usage of On/Off controllers and well-tuned PI controllers, as well as optimal control strategies for heating and cooling operations, the HGSHP system is expected to give better operating performance and efficiency. As a result, noticeable energy savings can be achieved in both heating and cooling modes of operation.
Download or read book The Heat Pump A Technical Look written by Laura Hoffmann and published by GRIN Verlag. This book was released on 2021-09-08 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seminar paper from the year 2021 in the subject Engineering - Power Engineering, grade: 1,3, Technical University of Munich, language: English, abstract: In this paper, the principle of heat pumps will be looked at and discussed more in detail. Heat pumps can play an important role in the transformation towards reducing greenhouse gas emissions and energy consumption, due to their ability to lift low-grade environmental heat with power to a temperature level useful in buildings. They are efficient in providing heat when implemented correctly and can also provide demand response. Thus, heat pumps are able to provide, compared to other heating systems, significant carbon savings that are even expected to rise further in the future. Reducing greenhouse gas emissions and energy consumption poses one of the major issues that has to be dealt with at present. National and international climate change objectives demand a significant reduction in all sectors Along with the increasing expectations of reducing greenhouse gas emissions, these global targets are causing a change in our energy system. The demand for energy-efficient and cost-effective systems have risen due primarily to dwindling resources causing increasing energy costs. To deal with these issues, the focus shifts more and more towards phasing out fossil fuels and replacing them with electrical energy systems powered by renewable intermittent energy sources, such as sun and wind, to decrease our reliance on fossil fuels. One way to heat buildings more efficiently is the use of a heat pump. Heat pumps have become popular in Germany, by now, over 1 million have been implemented.
Download or read book Dual path Heat Pump System Used in Superstore written by and published by . This book was released on 2000 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wal-Mart Corporation, a leading retailer, undertook a collaborative project with the Electric Power Research Institute (EPRI) to design and build an energy-efficient and environmentally friendly superstore. The innovative design, featuring new dual-path heat pumps linked to a water-cooled refrigeration system on a common water loop, was selected for its ability to meet the store's all-season HVAC needs, including dehumidification of the required higher volume of ventilation air, with efficiency and economy unattainable with any other technology. The new superstore is annually realising estimated energy savings of 22% and cost savings of over USD 100,000. The new system also eliminates chlorofluorocarbons (CFC's), recovers refrigeration waste heat for space and water heating, and provides excellent humidity control. It is applicable in most climates in the US as well as in other supermarket settings.
Download or read book Solar Assisted Ground Source Heat Pump Solutions written by Francesco Reda and published by Springer. This book was released on 2016-12-09 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Heat Pump Seminar written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy Engineering of Solar Energy Systems written by Stanislav Kolisnychenko and published by Trans Tech Publications Ltd. This book was released on 2015-07-31 with total page 4628 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main advantages of solar energy are inexhaustibility and wide accessibility, as well as the relative environmental friendliness of its transformation into other forms of energy. The widespread use of solar energy requires the creation of functionally complete systems which convert solar energy into an element of a given technological process. The collection Engineering of Solar Energy Systems consists of papers published by Trans Tech Publications Inc. from 2010 to 2014 inclusive and covers a wide range of advanced achievements in the field of creating and designing systems for technological use of solar energy. The compiled scientific papers are presented in eight chapters: Chapter 1: Solar Systems for Heating, Cooling and Ventilation Chapter 2: Solar Energy in Environmental Treatment and Water Desalination Chapter 3: Solar Hydrogen Production Chapter 4: Systems for Electricity Supply Based on Solar Energy Chapter 5: Design of Components and Equipment for Solar Systems Chapter 6: Mechatronics, Control and Automation in Solar Energetics Chapter 7: Integration of Solar Technologies in the Architecture of Buildings Chapter 8: Engineering Management in Solar Energetics, which cover many aspects of scientific and engineering activities.
Download or read book Technology Installation Review A Case Study on Energy efficient Technologies written by and published by . This book was released on 2001 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this Technology Installation Review is to provide an overview of hybrid geothermal heat pump systems. It presents the results of recent research on these systems, looks at system types, energy savings, maintenance considerations, and measured technology performance from several examples. Using the ground as a thermal energy source and/or a heat sink for heat pumps has long been recognized to have a number of advantages over the similar use of ambient air. Ground temperatures at about 3-ft depth or lower are much less variable than ambient air temperatures. Further, soil or rock at these depths is usually warmer than ambient air during the coldest winter months and cooler than ambient air during the summer months. This fact leads directly to cooler condensation temperatures (during cooling operation) and warmer evaporating temperatures (during heating) for a heat pump with consequent improved energy efficiency. It also results in increased heating and cooling capacity at extreme temperatures, thereby reducing or eliminating the need for auxiliary heat.
Download or read book Applied Thermodynamics and Heat Transfer written by Ivan Ivanovich Novikov and published by . This book was released on 1963 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bearing in mind the large relative significance of problems involved in the removal of heat from the nuclear reactors and its conversion into other types of energy, the basic information on thermodynamics and heat transfer are treated. (Author).
Download or read book Performance Assessment of High Efficiency Variable Speed Air source Heat Pump in Cold Climate Applications written by Gregory Shoukas and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exergy Analysis of Heating Refrigerating and Air Conditioning written by Ibrahim Dincer and published by Academic Press. This book was released on 2015-08-08 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improve and optimize efficiency of HVAC and related energy systems from an exergy perspective. From fundamentals to advanced applications, Exergy Analysis of Heating, Air Conditioning, and Refrigeration provides readers with a clear and concise description of exergy analysis and its many uses. Focusing on the application of exergy methods to the primary technologies for heating, refrigerating, and air conditioning, Ibrahim Dincer and Marc A. Rosen demonstrate exactly how exergy can help improve and optimize efficiency, environmental performance, and cost-effectiveness. The book also discusses the analysis tools available, and includes many comprehensive case studies on current and emerging systems and technologies for real-world examples. From introducing exergy and thermodynamic fundamentals to presenting the use of exergy methods for heating, refrigeration, and air conditioning systems, this book equips any researcher or practicing engineer with the tools needed to learn and master the application of exergy analysis to these systems. - Explains the fundamentals of energy/exergy for practitioners/researchers in HVAC&R fields for improving efficiency - Covers environmental assessments and economic evaluations for a well-rounded approach to the subject - Includes comprehensive case studies on both current and emerging systems/technologies - Provides examples from a range of applications – from basic HVAC&R to more diverse processes such as industrial heating/cooling, cogeneration and trigeneration, and thermal storage
Download or read book Optimizing the Operation of a Hybrid Ground Source Heat Pump System Under Uncertainty written by Hansani Weeratunge and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid renewable energy systems that combine conventional heating, ventilation, and air conditioning (HVAC) systems and ground source heat pumps (GSHP) have become an attractive alternative for conventional HVAC systems due to their higher cost and energy efficiency.Furthermore, control strategies that exploit predictive information about weather and building occupants' activity can further reduce the system operating costs. This study proposes a Stochastic Model Predictive Control (SMPC) for hybrid GSHP systems considering the stochastic nature of the building space heating demand. In SMPC, near-optimal control decisions are found for the current and future states of the system through the application of Regression Monte-Carlo techniques. We compare the performance of SMPC to that gained by using setpoint Control (SPC) and Model Predictive Control (MPC) which uses a deterministic forecast. It is found that by taking uncertainty into account via SMPC, the operating cost reduction compared to SPC is approximately equal to half of the cost-optimality gap between SPC and an idealized controller that is represented by MPC with perfect future information. Furthermore, we find that MPC using a forecast based on expected values leads to greater operating costs compared to the simpler SPC strategy when variability and uncertainty are present.
Download or read book Solar Energy Technology Handbook written by E. W. Dickinson and published by CRC Press. This book was released on 2018-05-04 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook, for convenient use, is divided into eight main units: (1) The Solar Resource; (2) Solar Thermal Collectors; (3) Photovoltaics; (4) Bioconversion; (5) Wind Energy; (6) Solar Energy Storage Systems; (7) Applications of Solar Energy; (8) Non-technical Issues. In addition there are three Appendixes containing unit-conversion tables and useful solar data. It became obvious early in this project that if proper coverage were to be given each of these areas it would be necessary to divide the handbook into two volumes. The first six units constitute Part A, Engineering Fundamentals and the last two units constitute Part B, Applications, Systems Design, and Economics. These volumes have been prepared primarily as reference books, but it is felt that many of the sections will prove useful for practicing engineers, scientists and students.
Download or read book Heat pump centered Integrated Community Energy Systems System Development Assessment written by James M. Calm and published by . This book was released on 1981 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
