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Author :
Publisher :
ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (931 download)
Download or read book Electrostatic Dehumidification Technology written by and published by . This book was released on 2003 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 : 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.
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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.
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Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (538 download)
Download or read book Two-wheel Desiccant Dehumidification System written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 204 pages
Book Rating : 4.3/5 ( download)
Download or read book Proceedings written by and published by . This book was released on 1991 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Abdulrahman Th. Mohammad
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659799655
Total Pages : 196 pages
Book Rating : 4.7/5 (996 download)
Download or read book Liquid Desiccant Dehumidification: Concept and Technology written by Abdulrahman Th. Mohammad and published by LAP Lambert Academic Publishing. This book was released on 2015-12-22 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional air conditioning systems based on the vapor compression principle are primary electricity consumers and their refrigerants have negative environmental impacts. The combined liquid desiccant dehumidification and vapor compression system are defined as hybrid liquid desiccant systems. Desiccant dehumidification is the technology for dehumidifying of the air by absorbing the moisture from it. When the moisture absorbs, the air is dehumidified and became most suitable for cooling purpose in humid and hot climates. For this reason, the liquid desiccant dehumidification technology is proposed as an alternative to the traditional vapour compression systems due to its advantage in, removing the air latent load, friendly environment, removing of pollutants from the process air and reduction the electrical energy consumption.
Author : Ahmad A. Pesaran
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (349 download)
Download or read book A Review of Desiccant Dehumidification Technology written by Ahmad A. Pesaran and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Author : Ye Yao
Publisher : John Wiley & Sons
ISBN 13 : 1118921631
Total Pages : 332 pages
Book Rating : 4.1/5 (189 download)
Download or read book Ultrasonic Technology for Desiccant Regeneration written by Ye Yao and published by John Wiley & Sons. This book was released on 2014-08-25 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chapters in this volume explore ultrasound-assisted regeneration of silica gel, ultrasound-assisted regeneration for a new honeycomb desiccant material, ultrasound-atomizing regeneration for liquid desiccants, ultrasonic transducers, and much more.
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 :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (727 download)
Download or read book Review of Desiccant Dehumidification Technology written by and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper overviews applications of desiccant technology for dehumidifying commercial and institutional buildings. Because of various market, policy, and regulatory factors, this technology is especially attractive for dehumidification applications in the I990s.
Author : Kenneth John Schultz
Publisher :
ISBN 13 :
Total Pages : 476 pages
Book Rating : 4.:/5 (891 download)
Download or read book The Performance of Desiccant Dehumidifier Air-conditioning Systems Using Cooled Dehumidifiers written by Kenneth John Schultz and published by . This book was released on 1983 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (873 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 :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (136 download)
Download or read book SORPTION-BASED DEHYDRATION SYSTEMS written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Dehydration or drying is one of the ubiquitous, often most energy-intensive, processes in various industrial, residential, and commercial applications, reflecting a large energy market size in the industrial and residential sectors. Conventional dryer systems utilizing either electric resistance elements or more commonly fossil fuels such as natural gas with a maximum COP (Coefficient of Performance) of 1 suffer from low energy efficiency. Existing condensing dehydration systems including heat pump dryers, however, need to significantly cool the air to achieve dehumidification. The added cooling and subsequent heating to return the air to the desired drying temperature consume substantial energy and thus reduce drying performance. As such, state-of-the-art fuel-driven clothes dryers suffer from sensible and latent (i.e., humidity) losses, mainly due to enthalpy losses associated with warm humid air leaving the dryer. The energy efficiency of a clothes dryer system can be potentially improved if part of the thermal energy, currently wasted, is captured. This dissertation introduces a novel sorption-based drying concept to overcome shortcomings that deteriorate energy efficiency in existing gas, electric, or heat pump dryer systems. The system employs a liquid-desiccant solution to directly capture air humidity, thereby allowing circulation of the air in a closed loop to achieve high drying energy efficiency. In other words, the system captures waste latent heat from the moisture produced during the dehydration process and reuses it to improve energy efficiency. First, a comprehensive quasi-steady-state thermodynamic modeling is developed to predict transient response and overall drying performance (i.e., time and energy metrics) of the proposed sorption-based dehydration concept employed for a clothes dryer application. The developed model considers the details of both the dryer unit and the sorption cycle. The analysis showed a drying time of 44 minutes and a specific moisture extraction rate (SMER) of 1.71 kgwater/kWh, reflecting a 112% energy improvement compared with stateof-the-art gas clothes dryers. The promising results showed the potential of the sorptionbased dehydration system to take advantage of the available waste thermal energy and improve energy efficiency.At the heart of the proposed sorption-based drying system, a liquid-desiccant-based dehumidifier module is responsible for the dehumidification process. Existing liquiddesiccant-based air dehumidification systems suffer from a poor liquid flow distribution which deteriorates their moisture removal rate. In the proposed dehumidifier, the capillary forces and wickability effect of textured surfaces are altered to minimize the liquiddesiccant flow rate of the fully wetted state, thereby transforming the physics of interfacial desiccant flow distribution. At a water vapor pressure potential of 3 kPa and a solution flow rate of 2.8 g/s, experimental results indicated a moisture removal rate of 0.16 g/m2-s for a textured surface concept with a capillary length scale of 3 mm, a 28% improvement compared with that of smooth-plate dehumidifier surfaces. A high moisture removal rate of the textured surface at a low desiccant flow rate led to a high thermal efficiency of 0.75 at a water vapor pressure potential of 5.6 kPa and a lithium bromide (LiBr) flow rate of 2.8 g/s. Next, a liquid-desiccant-based dehumidification cycle was developed and integrated into a commercially available residential clothes dryer drum. Then, the performance of the system was fully investigated using the standard fabrics based on the DOE standard clothes dryer test procedure. The effect of sorption cycle working conditions such as desorber solution flow rate and desorber temperature were examined. The experimentally measured drying performance of the system showed a maximum combined energy factor (CEF) of 8.2 lbmdry-bone /kWh at a drying time of 70 minutes. The energy efficiency offered is significantly higher than standard clothes dryers. Also, the primary energy efficiency of the proposed fuel-driven system is more than two times better than the most advanced vapor compression heat pump clothes dryers (VCHP-CDs). The results of this dissertation showed the great promise of the sorption-based dehydration technology. The sorption-based drying concept was comprehensively examined through detailed modeling and extensive experimentations. Further research is needed to improve the reliability of the concept, reduce the overall cost of the system, and realize the potential of the concept for other industrial drying applications.
Author : Thomas E. Durgin
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (316 download)
Download or read book A Guide for Desiccant Dehumidification Technology written by Thomas E. Durgin and published by . This book was released on 1997 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alaa El-Din A. Bekhit
Publisher : CRC Press
ISBN 13 : 1498700497
Total Pages : 604 pages
Book Rating : 4.4/5 (987 download)
Download or read book Advances in Meat Processing Technology written by Alaa El-Din A. Bekhit and published by CRC Press. This book was released on 2017-09-29 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meat is a unique biological material with a central importance in nutrition and health. Advances in Meat Processing Technology merges the expertise of meat scientists and food engineers in a holistic approach toward the processing of meat. The meat industry strives to deliver consistent high quality and safe meat products. Readers can benefit from knowledge generated by meat science researchers by achieving a greater understanding of the nature of meat, and the engineering technology required for meat processing. This book comprises 17 full chapters that provide up-to-date and fundamental information on current topics in meat processing. This inculdes novel technologies, such as the application of pulsed electric field, meat stretching and shaping, ultrasound and high pressure. In addition, analytical techniques such as Raman spectroscopy and NMR are enabling considerable advancement of knowledge in meat science and in meat processing. Written by world renowned experts in their fields, this contemporary collective work assembles the state of current knowledge that is of importance to both industry and academia.
