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| Author | : |
| Publisher | : |
| Total Pages | : 5 |
| Release | : 2002 |
| Genre | : |
| ISBN | : |
In this study, behaviors of released dust and pressure inside and outside the filter element were observed very precisely. Based on the observation, a simple model correlating between momentum acting on released dust, pressure and, shear and tensile stresses has been proposed. Then its validity was discussed by comparing calculated and experimental results.
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| Total Pages | : 6 |
| Release | : 1993 |
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Generally, new filter elements with large S/V ratios typically have inlet passages with a small cross sectional area to reach a large filter surface area internal to the filter element. To prevent plugging of the inlet passages, or to prevent the filter passage inlet velocity from becoming dangerously high causing cake disturbance, the high S/V filter can only accommodate a very thin cake. The conventional backpulse cleaning technique may not be able to dislodge this thin cake. The multi-tier design using ceramic candles can tolerate a thick dust cake. The conventional back-pulse cleaning technique could then be used to remove the dust cake. However, due to the proximity of the neighboring tiers, the large-volume flow of the back-pulse mixing with a huge quantity of dislodged dust cake could potentially perturb the local flow distribution from its initially well-mixed uniform flow and dust concentration. As soon as one spot or patch of dust cake forms on the neighboring candle surface due to this redistributed nonuniform flow and dust concentration, patching dust redeposition will occur on the neighboring tiers, leading eventually to ash bridging. This is because the rigid ceramic candle, unlike the fabric filter, does not flex during back-pulse cleaning; therefore, it cannot tolerate the uneven flow distribution. The back-pulse flow universally seeks the least resistance path, resulting in an uneven or patchy cleaning. Ash bridging is known to cause ceramic candle breakage due to the pulse ratchet problem. To understand the back-pulse cleaning problem caused by the use of high S/V rigid filter elements or the implementation of a multi-tier design, a bench-scale, two-dimensional (2-D) cold flow filter test facility is being constructed, and is scheduled for shakedown and testing in July 1993.
| Author | : R. Clift |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 692 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 9401121729 |
2nd International Symposium
| Author | : Jinyue Yan |
| Publisher | : John Wiley & Sons |
| Total Pages | : 4038 |
| Release | : 2015-06-22 |
| Genre | : Science |
| ISBN | : 1118388585 |
The Handbook of Clean Energy Systems brings together an international team of experts to present a comprehensive overview of the latest research, developments and practical applications throughout all areas of clean energy systems. Consolidating information which is currently scattered across a wide variety of literature sources, the handbook covers a broad range of topics in this interdisciplinary research field including both fossil and renewable energy systems. The development of intelligent energy systems for efficient energy processes and mitigation technologies for the reduction of environmental pollutants is explored in depth, and environmental, social and economic impacts are also addressed. Topics covered include: Volume 1 - Renewable Energy: Biomass resources and biofuel production; Bioenergy Utilization; Solar Energy; Wind Energy; Geothermal Energy; Tidal Energy. Volume 2 - Clean Energy Conversion Technologies: Steam/Vapor Power Generation; Gas Turbines Power Generation; Reciprocating Engines; Fuel Cells; Cogeneration and Polygeneration. Volume 3 - Mitigation Technologies: Carbon Capture; Negative Emissions System; Carbon Transportation; Carbon Storage; Emission Mitigation Technologies; Efficiency Improvements and Waste Management; Waste to Energy. Volume 4 - Intelligent Energy Systems: Future Electricity Markets; Diagnostic and Control of Energy Systems; New Electric Transmission Systems; Smart Grid and Modern Electrical Systems; Energy Efficiency of Municipal Energy Systems; Energy Efficiency of Industrial Energy Systems; Consumer Behaviors; Load Control and Management; Electric Car and Hybrid Car; Energy Efficiency Improvement. Volume 5 - Energy Storage: Thermal Energy Storage; Chemical Storage; Mechanical Storage; Electrochemical Storage; Integrated Storage Systems. Volume 6 - Sustainability of Energy Systems: Sustainability Indicators, Evaluation Criteria, and Reporting; Regulation and Policy; Finance and Investment; Emission Trading; Modeling and Analysis of Energy Systems; Energy vs. Development; Low Carbon Economy; Energy Efficiencies and Emission Reduction. Key features: Comprising over 3,500 pages in 6 volumes, HCES presents a comprehensive overview of the latest research, developments and practical applications throughout all areas of clean energy systems, consolidating a wealth of information which is currently scattered across a wide variety of literature sources. In addition to renewable energy systems, HCES also covers processes for the efficient and clean conversion of traditional fuels such as coal, oil and gas, energy storage systems, mitigation technologies for the reduction of environmental pollutants, and the development of intelligent energy systems. Environmental, social and economic impacts of energy systems are also addressed in depth. Published in full colour throughout. Fully indexed with cross referencing within and between all six volumes. Edited by leading researchers from academia and industry who are internationally renowned and active in their respective fields. Published in print and online. The online version is a single publication (i.e. no updates), available for one-time purchase or through annual subscription.
| Author | : Arunangshu Mukhopadhyay |
| Publisher | : Routledge |
| Total Pages | : 97 |
| Release | : 2019-03-15 |
| Genre | : Technology & Engineering |
| ISBN | : 1351420887 |
Pulse-jet filtration is described as one of the most efficient technologies in controlling industrial pollution across the world. This work presents the fundamental concepts involved in designing and developing pulse-jet filters under varied situations. It provides a comprehensive knowledge base for the proper design and development of filter media and ultimately for successfully running a filter unit. The book also discusses technical and commercially attractive solutions for the successful operation of industries integrated with pollution control equipment that maintain clean air requirements.
| Author | : Roland Clift |
| Publisher | : Pergamon |
| Total Pages | : 564 |
| Release | : 1986 |
| Genre | : Gases |
| ISBN | : 9780852952009 |
| Author | : R.P. Donovan |
| Publisher | : CRC Press |
| Total Pages | : 449 |
| Release | : 2020-08-14 |
| Genre | : Science |
| ISBN | : 1000146677 |
This book focuses on the most important applications of fabric filtration: environmental protection, particulate control from combustion sources. It summarises the types of fibers and their properties and gives an overview of textile processing.
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| Publisher | : |
| Total Pages | : 8 |
| Release | : 1994 |
| Genre | : |
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High-temperature particulate control devices are an integral part of advanced coal-fired power systems. By efficiently removing minute particles from high-temperature gas streams, environmentally clean and efficient power systems can be realized. In recent years, economic incentives have prompted developers of high-temperature and high-pressure (HTHP) particulate filtration systems to pursue filter element designs with more filter surface area for a given volume. Although higher surface-to-volume (SV) ratio filter designs are driven by economic incentives, physical constraints and the fundamental behavior of dust cake formation and removal will limit the maximum SV ratio. In an attempt to improve the understanding of dust cake behavior in a well controlled environment, a two-dimensional cold flow filter module is being tested. This filter module can be used to investigate dust cake formation, removal, and re-entrainment over a range of operating conditions. Preliminary results suggest that the cohesive strength of the particulate media has a strong influence on how the dust cake is removed during reverse pulse cleaning. Furthermore, the properties of the particulate media play an important role in forming non-uniform dust cakes. In the following paragraphs, the experimental apparatus, preliminary results, and future plans will be discussed.
