Advanced Hybrid Particulate Collector
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Advanced Hybrid Particulate Collector
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Author :
language : en
Publisher:
Release Date : 2000
Advanced Hybrid Particulate Collector written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed under funding from the US Department of Energy. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in an entirely novel manner. The AHPC concept combines fabric filtration and electrostatic precipitation in the same housing, providing major synergism between the two methods, both in the particulate collection step and in transfer of dust to the hopper. The AHPC provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emissions with conventional ESPs, and solves the problem of reentrainment and recollection of dust in conventional baghouses. Phase I of the development effort consisted of design, construction, and testing of a 5.7-m3/min (200-acfm) working AHPC model. Results from both 8-hour parametric tests and 100-hour proof-of-concept tests with two different coals demonstrated excellent operability and greater than 99.99% fine-particle collection efficiency.
Demonstration Of A Full Scale Retrofit Of The Advanced Hybrid Particulate Collector Technology
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Author : William Swanson
language : en
Publisher:
Release Date : 2005
Demonstration Of A Full Scale Retrofit Of The Advanced Hybrid Particulate Collector Technology written by William Swanson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
The Advanced Hybrid Particulate Collector (AHPC), developed in cooperation between W.L. Gore & Associates and the Energy & Environmental Research Center (EERC), is an innovative approach to removing particulates from power plant flue gas. The AHPC combines the elements of a traditional baghouse and electrostatic precipitator (ESP) into one device to achieve increased particulate collection efficiency. As part of the Power Plant Improvement Initiative (PPII), this project was demonstrated under joint sponsorship from the U.S. Department of Energy and Otter Tail Power Company. The EERC is the patent holder for the technology, and W.L. Gore & Associates was the exclusive licensee for this project. The project objective was to demonstrate the improved particulate collection efficiency obtained by a full-scale retrofit of the AHPC to an existing electrostatic precipitator. The full-scale retrofit was installed on an electric power plant burning Powder River Basin (PRB) coal, Otter Tail Power Company's Big Stone Plant, in Big Stone City, South Dakota. The $13.4 million project was installed in October 2002. Project related testing concluded in December 2005. The following Final Technical Report has been prepared for the project entitled ''Demonstration of a Full-Scale Retrofit of the Advanced Hybrid Particulate Collector Technology'' as described in DOE Award No. DE-FC26-02NT41420. The report presents the operation and performance results of the system.
Advanced Hybrid Particulate Collector Phase Iii
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Author :
language : en
Publisher:
Release Date : 2001
Advanced Hybrid Particulate Collector Phase Iii written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed under funding from the U.S. Department of Energy. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in a unique configuration. The AHPC concept consists of a combination of fabric filtration and electrostatic precipitation in the same housing, providing major synergism between the two collection methods, both in the particulate collection step and in the transfer of dust to the hopper. The AHPC provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emission with conventional ESPs, and it solves the problem of reentrainment and re-collection of dust in conventional baghouses. In Phase II, a 2.5-MW-scale AHPC was designed, constructed, installed, and tested at the Big Stone power plant. For Phase III, further testing of an improved version of the 2.5-MW-scale AHPC at the Big Stone power plant is being conducted to facilitate commercialization of the AHPC technology.
Advanced Hybrid Particulate Collector
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Author : Stanley J. Miller
language : en
Publisher:
Release Date : 2000
Advanced Hybrid Particulate Collector written by Stanley J. Miller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Advanced Hybrid Particulate Collector Ahpc Technology
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Author :
language : en
Publisher:
Release Date : 2001
Advanced Hybrid Particulate Collector Ahpc Technology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Cement plants categories.
Advanced Hybrid Particulate Collector And Method Of Operation
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Author :
language : en
Publisher:
Release Date : 2003
Advanced Hybrid Particulate Collector And Method Of Operation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
A device and method for controlling particulate air pollutants of the present invention combines filtration and electrostatic collection devices. The invention includes a chamber housing a plurality of rows of filter elements. Between the rows of filter elements are rows of high voltage discharge electrodes. Between the rows of discharge electrodes and the rows of filter elements are grounded perforated plates for creating electrostatic precipitation zones.
Advanced Hybrid Particulate Collector Pilot Scale Testing
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Author :
language : en
Publisher:
Release Date : 2001
Advanced Hybrid Particulate Collector Pilot Scale Testing written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed at the Energy and Environmental Research Center (EERC) with U.S. Department of Energy (DOE) funding. In addition to DOE and the EERC, the project team includes W.L. Gore and Associates, Inc., Allied Environmental Technologies, Inc., and the Big Stone power station. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in a unique approach to develop a compact but highly efficient system. Filtration and electrostatics are employed in the same housing, providing major synergism between the two collection methods, both in the particulate collection step and in the transfer of dust to the hopper. The AHPC provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emissions with conventional ESPs, and solves the problem of reentrainment and re-collection of dust in conventional baghouses. The objective of the AHPC is to provide>99.99% particulate collection efficiency for particle sizes from 0.01 to 50 [mu]m and be applicable for use with all U.S. coals at a lower cost than existing technologies. In previous field tests with the AHPC, some minor bag damage was observed that appeared to be caused by electrical effects. Extensive studies were then carried out to determine the reason for the bag damage and to find possible solutions without compromising AHPC performance. The best solution to prevent the bag damage was found to be perforated plates installed between the electrodes and the bags, which can block the electric field from the bag surface and intercept current to the bags. The perforated plates not only solve the bag damage problem, but also offer many other advantages such as operation at higher A/C (air-to-cloth) ratios, lower pressure drop, and an even more compact geometric arrangement. For this project, AHPC pilot-scale tests were carried out to understand the effect of the perforated plate configuration on bag protection and AHPC overall performance and to optimize the perforated plate design. Five different perforated plate configurations were evaluated in a coal combustion system. The AHPC performed extremely well even at a low current level (1.5-3.0 mA) and a low pulse trigger pressure of 6.5 in. W.C. (1.62 kPa), resulting in a bag-cleaning interval of over 40 min at an A/C ratio of 12 ft/min (3.7 m/min) for most of the test period. The longest bag-cleaning interval was 594 min, which is the best to date. The residual drag was reduced to the range from 0.25 to 0.35 in. H2O/ft/min, showing an excellent bag-cleaning ability under the perforated plate configurations. The K2C{sub i} at the current level of 3 mA was as low as 1.0, indicating excellent ESP performance. All the results are the best achieved to date.
Advanced Hybrid Particulate Collector Quarterly Technical Progress Report
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Author :
language : en
Publisher:
Release Date : 1996
Advanced Hybrid Particulate Collector Quarterly Technical Progress Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Subtask 2 13 Advanced Hybrid Particulate Collector Fundamental Performance
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Author :
language : en
Publisher:
Release Date : 2007
Subtask 2 13 Advanced Hybrid Particulate Collector Fundamental Performance written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Under the Power Plant Improvement Initiative Program funded by the U.S. Department of Energy, a full-scale Advanced Hybrid{trademark} filter was installed at the Big Stone Plant, with start-up in October 2002. The Advanced Hybrid{trademark} filter was retrofitted into Fields 2-4 of the old Big Stone electrostatic precipitator (ESP). While many aspects of the operation were satisfactory, pressure drop was higher than expected. To achieve acceptable pressure drop and successfully demonstrate the Advanced Hybrid{trademark} filter technology, the first fields of the ESP were also converted into an Advanced Hybrid{trademark} filter in 2005. However, since start-up in June 2005, the first fields have been inoperable for multiple reasons. The fundamental cause of the dysfunctional performance of the first fields was attributed to spacing and alignment problems, which led to excessive sparking and shutdown of the high-voltage power. In spite of attempts to correct the problems, satisfactory performance of the first fields was never achieved. Because of the uncertainties of how to achieve acceptable performance with a new technology, the Big Stone Plant made the decision to convert the entire Advanced Hybrid{trademark} filter housing into a pulse-jet fabric filter.
Advanced Hybrid Particulate Collector Project Management Plan
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Author :
language : en
Publisher:
Release Date : 1995
Advanced Hybrid Particulate Collector Project Management Plan written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
As the consumption of energy increases, its impact on ambient air quality has become a significant concern. Recent studies indicate that fine particles from coal combustion cause health problems as well as atmospheric visibility impairment. These problems are further compounded by the concentration of hazardous trace elements such as mercury, cadmium, selenium, and arsenic in fine particles. Therefore, a current need exists to develop superior, but economical, methods to control emissions of fine particles. Since most of the toxic metals present in coal will be in particulate form, a high level of fine- particle collection appears to be the best method of overall air toxics control. However, over 50% of mercury and a portion of selenium emissions are in vapor form and cannot be collected in particulate control devices. Therefore, this project will focus on developing technology not only to provide ultrahigh collection efficiency of particulate air toxic emissions, but also to capture vapor- phase trace metals such as mercury and selenium. Currently, the primary state-of-the-art technologies for particulate control are fabric filters (baghouses) and electrostatic precipitators (ESPs). However, they both have limitations that prevent them from achieving ultrahigh collection of fine particulate matter and vapor-phase trace metals. The objective of this project is to develop a highly reliable advanced hybrid particulate collector (AHPC) that can provide> 99.99 % particulate collection efficiency for all particle sizes between 0.01 and 50 14m, is applicable for use with all U.S. coals, and is cost-0443competitive with existing technologies. Phase I of the project is organized into three tasks: Task I - Project Management, Reporting, and Subcontract Consulting Task 2 - Modeling, Design, and Construction of 200-acfm AHPC Model Task 3 - Experimental Testing and Subcontract Consulting.