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Author : Naeem Ramez Abousaab
Publisher :
ISBN 13 :
Total Pages : 294 pages
Book Rating : 4.:/5 (34 download)
Download or read book An Investigation of Energy Efficient Dehumidification Technology written by Naeem Ramez Abousaab and published by . This book was released on 1995 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technology Solutions Case Study written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this project by Building Science Corporation was to evaluate the humidity control performance of new single family high performance homes, and compare the interior conditions and mechanical systems operation between two distinct groups of houses: homes with a supplemental dehumidifier installed in addition to HVAC system, and homes without any supplemental dehumidification. The subjects of the study were 10 single-family new construction homes in New Orleans, LA. Data logging equipment was installed at each home in 2012, and interior conditions and various end-use loads were monitored for one year. In terms of averages, the homes with dehumidifiers are limiting elevated levels of humidity in the living space; however, there was significant variation in humidity control between individual houses. An analysis of the equipment operation did not show a clear correlation between energy use and humidity levels. In general, no single explanatory variable appears to provide a consistent understanding of the humidity control in each house. Indoor humidity is likely due to all of the factors we have examined, and the specifics of how they are used by each occupant.
Author : Mardiana Idayu Ahmad
Publisher : Springer Nature
ISBN 13 : 3030500063
Total Pages : 135 pages
Book Rating : 4.0/5 (35 download)
Download or read book Energy Recovery Technology for Building Applications written by Mardiana Idayu Ahmad and published by Springer Nature. This book was released on 2020-07-13 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses energy recovery technology, a green innovation that can be used in buildings. This technology reduces energy consumption in buildings and provides energy savings to conventional mechanical ventilation systems. Divided into eight chapters, the book provides in-depth technical information, state-of-the-art research, and latest developments in the energy recovery technology field. Case-studies describe worldwide applications of energy recovery technology and its integrated system for building services. This book will be used as a general and technical reference book for students, engineers, professionals, practitioners, scientists, and researchers seeking to reduce energy consumption of buildings in various climatic conditions. Presents an overview of energy consumption scenarios in buildings and the needs for energy-efficient technologies at regional and global levels; Explains models and methods of energy recovery technology performance evaluation; Inspires further research into energy recovery technology for building applications.
Author :
Publisher :
ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (16 download)
Download or read book Building America Case Study written by and published by . This book was released on 2014 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report, Evaluation of the Performance of Houses with and without Supplemental Dehumidification in a Hot-Humid Climate, describes a research study that that was conducted by the Building Science Corporation (BSC) Building America Research Team. BSC seeks to research and report on the field monitoring of the performance of in-situ supplemental dehumidification systems in low energy, high performance, homes in a Hot-Humid climate. The purpose of this research project was to observe and compare the humidity control performance of new, single family, low energy, and high performance, homes. Specifically, the study sought to compare the interior conditions and mechanical systems operation between two distinct groups of houses, homes with a supplemental dehumidifier installed in addition to HVAC system, and homes without any supplemental dehumidification. The subjects of the study were ten single-family new construction homes in New Orleans, LA. Data logging equipment was installed at each home in 2012. Interior conditions and various end-use loads were monitored for one year. In terms of averages, the homes with dehumidifiers are limiting elevated levels of humidity in the living space. However, there was significant variation in humidity control between individual houses. An analysis of the equipment operation did not show a clear correlation between energy use and humidity levels. In general, no single explanatory variable appears to provide a consistent understanding of the humidity control in each house. Indoor humidity is likely due to all of the factors we have examined, and the specifics of how they are used by each occupant.
Author : Vivekh Prabakaran
Publisher : Springer Nature
ISBN 13 : 3030808432
Total Pages : 152 pages
Book Rating : 4.0/5 (38 download)
Download or read book Advances in Desiccant Dehumidification written by Vivekh Prabakaran and published by Springer Nature. This book was released on 2021-07-21 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically analyses state-of-the-art technology and research related to desiccant dehumidification. It provides key insights into the current research direction, and presents global research and development interests. It begins by offering a comprehensive review of conventional desiccants and their underlying engineering challenges. Fundamental material characteristic properties and factors critical to the desiccant synthesis are highlighted. The applicability of next-generation advanced materials to address the challenges is documented, and the advantages of desiccant coated heat exchangers are evaluated. Lastly, the potential applications of desiccant dehumidifiers in various energy-connected applications are discussed, and case studies on industrial/building cooling systems are provided. Specifically targeted at HVAC engineers, thermal scientists, energy-engineering researchers, and graduate-level students in the field, the technical content balances fundamental concepts and applications.
Author : Chua Kian Jon
Publisher : Springer Nature
ISBN 13 : 981158477X
Total Pages : 313 pages
Book Rating : 4.8/5 (115 download)
Download or read book Advances in Air Conditioning Technologies written by Chua Kian Jon and published by Springer Nature. This book was released on 2020-10-21 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights key recent developments in air conditioning technologies for cooling and dehumidification with the specific objectives to improve energy efficiency and to minimize environmental impact. Today, air conditioning, comprising cooling and dehumidification, is a necessity in commercial and residential buildings and even in many industrial processes. This book provides key update on recent developments in air conditioning systems, cooling cycles and innovative cooling/dehumidification technologies. Key technologies related to cooling include heat-driven absorption and adsorption cooling and water-based dew point evaporative cooling. Technologies connected with dehumidification involve new generations of adsorbent–desiccant dehumidifiers, liquid-based desiccants and membranes that sieve out water vapor from air. Losses in cooling cycles and thermo-economic analysis for a sustainable economy are also judiciously documented.
Author :
Publisher :
ISBN 13 :
Total Pages : 101 pages
Book Rating : 4.:/5 (889 download)
Download or read book Improving the Energy Efficiency of Dehumidification Technology at a Large Facility in Florida written by and published by . This book was released on 2013 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis examines energy use and management of twenty heat pipes used in dehumidification systems at a large (10,000+ acre) facility in Florida. Eleven of the twenty heat pipes use electric strip heaters that, when activated, consume 693.8 kW of electrical power from the grid. Solar photovoltaics, specifically a silicon monocrystalline cell with 22.5% efficiency, were considered as a means to provide an alternative energy source and opportunity for cost savings for 11 of the heat pipes (Sunpower, 2011). The remaining nine heat pipes use hot water heaters for which alternative energy sources were not considered. Data gathered and analyzed include weather, solar irradiance, PV size and cost, utility incentives, emissions, fuel consumption, energy cost, and heat pipe operating parameters. These data were used to calculate the (1) annual electricity cost for the heaters, (2) installed cost for enough PV to offset electric heater energy use, (3) surface area needed to install the estimated PV system, (4) one-time and ongoing financial incentives, (5) avoided energy savings, (6) avoided fuel usage and emissions, and (7) the undiscounted payback period of the various equipment investments. Savings were calculated to be almost 600,000 dollars annually (approximately 145,000 dollars attributable to the heaters) if PV were to power the heaters 125 days of the year and ancillary systems at other times. The cost of an appropriately sized PV system (4.57 acres with between 8,553 and 15,205 PV panels depending on panel size) was estimated at 3,228,806 dollars assuming 150,000 dollars of electric utility incentives. It was also estimated that the photovoltaic (PV) system could earn 85,087 dollars in annual tax credits through the Florida Renewable Energy Production Tax Credit program, and that the undiscounted payback period would be about five years. Further, the use of 728,350 US gallons of oil, and the emission of 13,656.6 lbs of SO2, 9,104.37 lbs of NOx, and 10,843,300 lbs of CO2, could also be avoided. It is recommended that the installation of PV energy generation capabilities be further investigated. It is also recommended that further research be performed to obtain accurate costs and benefits of integrating solar thermal into the hot water heaters at the facility because of the complexity of integrating solar thermal into the existing hot water heaters, the lack of readily available price information regarding solar thermal heating, and the fact that the hot water heaters consume about 170,000 dollars per year.
Author : Wade H. Shafer
Publisher : Springer Science & Business Media
ISBN 13 : 1461559693
Total Pages : 341 pages
Book Rating : 4.4/5 (615 download)
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this jOint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 40 (thesis year 1995) a total of 10,746 thesis titles from 19 Canadian and 144 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 40 reports theses submitted in 1995, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Author : G.W. Brundrett
Publisher : Butterworth-Heinemann
ISBN 13 : 148316201X
Total Pages : 241 pages
Book Rating : 4.4/5 (831 download)
Download or read book Handbook of Dehumidification Technology written by G.W. Brundrett and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Dehumidification Technology is a handbook of dehumidifiers and how they work. This manual describes the principles of dehumidification and looks at the domestic and industrial applications of dehumidifiers, along with design considerations for refrigerant dehumidifiers. The use of dehumidification in swimming pools and for food and flower storage is also discussed. This reference guide is comprised of 11 chapters and begins with an introduction to dehumidification, paying particular attention to how it addresses the problems created by high water vapor content in air. The historical development of air drying and the use of psychrometric charts to describe the state of damp air as well as to illustrate ways of lowering the relative humidity of moist air are also considered. The next chapter presents three methods of removing moisture from air: sorbent dehumidification, refrigerant dehumidification, and air-cycle dehumidification. The reader is also introduced to design considerations for refrigerant dehumidifiers, domestic applications of dehumidifiers, installation of dehumidifiers in a swimming pool, and industrial dehumidification. The final chapter is devoted to additional sources of information on dehumidifiers and dehumidification, including journals, professional bodies, and research. This monograph will be a valuable resource for technicians and others interested in humidity control.
Author : Vivekh Prabakaran
Publisher : Elsevier
ISBN 13 : 0323955304
Total Pages : 220 pages
Book Rating : 4.3/5 (239 download)
Download or read book Membrane Dehumidification and Cooling written by Vivekh Prabakaran and published by Elsevier. This book was released on 2023-05-01 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Membrane Dehumidification and Cooling: Fundamentals and Applications presents the state-of-the-art on membrane dehumidifiers, highlighting their most recent advancements and providing key insights into global R&D interests. With a strong focus on applications, the book offers characterization techniques to evaluate the potential of hygroscopic materials, as well as experimental methods to study the dehumidifiers’ performance. The book begins by highlighting the demerits of conventional cooling systems and then reviews electrically driven alternative cooling solutions. A comparative study between different dehumidification techniques is also given, along with sections on fundamental transport mechanisms and thermodynamic modeling. Finally, scaling, heat transfer and thermodynamic analysis are presented, along with a review of hybrid membrane-based air-conditioners. This book is a one-stop resource for recent advancements in membrane dehumidification and cooling applications. It is an essential read for students, researchers and engineers interested in thermal engineering, heat and mass transfer, alternative cooling, energy materials and dehumidification. Presents the fundamental aspects and applications of the latest membrane dehumidification technologies Comprehensively emphasizes new energy materials, experimental techniques, numerical methods, and thermal evaluation frameworks Focuses on the feasibility of membrane dehumidifiers in the next generation of hybrid cooling systems
Author : Muhammad Sultan
Publisher : Springer Nature
ISBN 13 : 3030863948
Total Pages : 124 pages
Book Rating : 4.0/5 (38 download)
Download or read book Energy-Efficient Systems for Agricultural Applications written by Muhammad Sultan and published by Springer Nature. This book was released on 2021-12-14 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports thermodynamic investigation, analyses, and options of temperature/humidity control systems and their technologies for agricultural applications including (but not limited to) fruits and vegetable storage, poultry air-conditioning, livestock thermal comfort, and wet market air-conditioning. The optimum temperature and humidity requirements for these agricultural applications are identified. Consequently, energy-efficient heat pump options are explored accordingly. The book helps to understand and to apply the thermodynamic knowledge of the energy-efficient systems for agricultural applications.
Author :
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (16 download)
Download or read book An Assessment of Desiccant Cooling and Dehumidification Technology written by and published by . This book was released on 1992 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Desiccant systems are heat-actuated cooling and dehumidification technology. With the recent advances in this technology, desiccant systems can now achieve a primary energy coefficient of performance (COP) between 1.3 and 1.5, with potential to go to 1.7 and higher. It is becoming one of the most promising alternatives to conventional cooling systems. Two important and well-known advantages of desiccant cooling systems are that they are CFC free and they can reduce the electricity peak load. Another important but lesser-known advantage of desiccant technology is its potential for energy conservation. The energy impact study in this report indicated that a possible 13% energy saving in residential cooling and 8% in commercial cooling is possible. Great energy saving potential also exists in the industrial sector if industrial waste heat can be used for desiccant regeneration. The latest study on desiccant-integrated building heating, ventilating, and air conditioning (HVAC) systems indicated that the initial cost for the conventional cooling equipment was greatly reduced by using desiccant technology because of downsized compressors, fans, and ductworks. This cost reduction was more than enough to offset the cost of desiccant equipment. Besides, the system operation cost was also reduced. All these indicate that desiccant systems are also cost effective. This study provides an updated state-of-the-art assessment forsiccant technology in the field of desiccant materials, systems, computer models, and theoretical analyses. From this information the technology options were derived and the future research and development needs were identified. Because desiccant technology has already been applied in the commercial building sector with very encouraging results, it is expected that future market breakthroughs will probably start in this sector. A market analysis for the commercial building application is therefore included.
Author : Jie Lin
Publisher : Springer Nature
ISBN 13 : 3031307585
Total Pages : 126 pages
Book Rating : 4.0/5 (313 download)
Download or read book Indirect Dew-Point Evaporative Cooling: Principles and Applications written by Jie Lin and published by Springer Nature. This book was released on 2023-05-26 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically discusses state-of-the-art dew-point evaporative cooling and provides key insights into current research efforts and future research interests. Novel energy-efficient and environment-friendly cooling technologies are essential to reduce the sharply rising energy consumption and greenhouse gas emissions and achieve carbon neutrality. Conventional air-conditioners which adopt a vapor compression cycle are neither energy-efficient nor sustainable due to the use of compressors and chemical refrigerants, as well as their intrinsic coupling of sensible and latent cooling loads. With the merits of high energy efficiency and the ability to decouple cooling loads without using chemical refrigerants, indirect dew-point evaporative cooling provides an ideal alternative solution to air conditioning in a variety of applications. A comprehensive review of evaporative cooling and their underlying engineering challenges is included. Advanced engineering and modeling experience critical to the development of dew-point evaporative coolers are highlighted. The effective analysis techniques for dew-point evaporative coolers are documented, and their intrinsic characteristics captured by these methods are reported. Lastly, advanced dew-point evaporative cooling systems in various energy-connected applications are discussed by providing multiple case studies. Specifically targeted at HVAC engineers, thermal scientists, and energy-engineering researchers, this book will balance fundamental concepts, industrial applications, and leading-edge research. As this book provides readers with depth and breadth of coverage, it can also be used by graduate-level students in relevant fields.
Author : G. R. Crossman
Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.E/5 ( download)
Download or read book Investigation of Current University Research Concerning Energy Conversion and Conservation in Small Single-family Dwellings written by G. R. Crossman and published by . This book was released on 1975 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tea Zakula
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.:/5 (861 download)
Download or read book Model Predictive Control for Energy Efficient Cooling and Dehumidification written by Tea Zakula and published by . This book was released on 2013 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy has become a primary concern in countries worldwide, and is a focus of debates on national security, climate change, global economy, and the developing world. With more people in developing countries adopting the lifestyle of western countries as rapidly as possible, limited only by economic means, a tremendous increase in world's energy consumption in the next few decades seems difficult to avoid. The building sector is of particular interest, since it accounts for a large portion of the total energy market: currently in the U.S. forty percent of the total energy and seventy percent of electricity is consumed by residential and commercial buildings. Within commercial buildings, cooling equipment represents the second largest consumer of electricity. This research analyzes one option for reducing space cooling energy consumption, an advanced cooling system termed low-lift cooling system (LLCS). The system comprises thermally activated building surfaces (TABS) with water running through pipes embedded in a building's construction to serve both as cool storage and as a means of delivering the cooling effect. The LLCS utilizes model predictive control (MPC) algorithm that, based on weather and load predictions, determines the cooling strategy over next 24 hours that minimizes energy consumption. Different objectives, such as minimizing the total cost of electricity, can be achieved by modifying the objective function. Currently there is no commercially or publicly available software that allows the analysis of systems that employ MPC. The first goal of this research was to develop a computer algorithm that can simulate the LLCS performance, but also the performance of other cooling systems that employ MPC. The second goal was to analyze the LLCS performance across different U.S. climates relative to a conventional cooling system and to explore different dehumidification strategies that can be used in combination with the LLCS. This research significantly advances the knowledge of simulation and performance of the LLCS. The developed MPC algorithm enables a systematic study of primary factors influencing dynamic controls and the savings potential for an individual building. The algorithm is highly modular, enabling easy future expansion, and is sufficiently fast and robust for an implementation real buildings. The results of the analysis suggest that the electricity savings using the LLCS are up to 50% relative to an all-air system under conventional control and up to 23% relative to an all-air system under MPC. The savings were achieved through lower fan and pump transport energy and better utilization of part-load efficiencies inherent in inverter-compressor equipment, a result of the TABS technology and the optimal control.
Author : V. C. Mei
Publisher :
ISBN 13 :
Total Pages : 111 pages
Book Rating : 4.:/5 (19 download)
Download or read book An Assessment of Desiccant Cooling and Dehumidification Technology written by V. C. Mei and published by . This book was released on 1992 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Desiccant systems are heat-actuated cooling and dehumidification technology. With the recent advances in this technology, desiccant systems can now achieve a primary energy coefficient of performance (COP) between 1.3 and 1.5, with potential to go to 1.7 and higher. It is becoming one of the most promising alternatives to conventional cooling systems. Two important and well-known advantages of desiccant cooling systems are that they are CFC free and they can reduce the electricity peak load. Another important but lesser-known advantage of desiccant technology is its potential for energy conservation. The energy impact study in this report indicated that a possible 13% energy saving in residential cooling and 8% in commercial cooling is possible. Great energy saving potential also exists in the industrial sector if industrial waste heat can be used for desiccant regeneration. The latest study on desiccant-integrated building heating, ventilating, and air conditioning (HVAC) systems indicated that the initial cost for the conventional cooling equipment was greatly reduced by using desiccant technology because of downsized compressors, fans, and ductworks. This cost reduction was more than enough to offset the cost of desiccant equipment. Besides, the system operation cost was also reduced. All these indicate that desiccant systems are also cost effective. This study provides an updated state-of-the-art assessment forsiccant technology in the field of desiccant materials, systems, computer models, and theoretical analyses. From this information the technology options were derived and the future research and development needs were identified. Because desiccant technology has already been applied in the commercial building sector with very encouraging results, it is expected that future market breakthroughs will probably start in this sector. A market analysis for the commercial building application is therefore included.
Author : Hongfei Zheng
Publisher : Elsevier
ISBN 13 : 0128094222
Total Pages : 786 pages
Book Rating : 4.1/5 (28 download)
Download or read book Solar Energy Desalination Technology written by Hongfei Zheng and published by Elsevier. This book was released on 2017-01-20 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar Energy Desalination Technology explains how to obtain clean water from sea water using solar energy. Special methods and types used in solar desalination are introduced, providing new thoughts, concepts, and feasible solutions in the desalination field, along with the thermal and economic efficiency relating to current technology. Many places in the world are suffering from fresh water shortage. However, those places are often rich with solar resources, sea water, and/or brackish water resources that could dramatically benefit from solar energy as a viable solution for the production of fresh water. Explains the principles of solar thermal energy usage to produce clean water from sea water Introduces and explains new kinds of solar desalination systems, including their technical level and working principle Provides fundamental knowledge on water treatment and solar collection
