Advanced Hybrid Particulate Collector Ahpc Technology
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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 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.
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 Quarterly Technical Progress Report April 1 June 30 1996
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Author :
language : en
Publisher:
Release Date : 1996
Advanced Hybrid Particulate Collector Quarterly Technical Progress Report April 1 June 30 1996 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.
The objective of the project is to develop a highly reliable advanced hybrid particulate collector (AHPC) that can provide> 99.99% particulate collection efficiency for all particle sizes from 0.01 to 50 [mu]m, is applicable for use with all US coals, and is cost-competitive with existing technologies. The main technical progress for the previous quarter was the design and construction of the 200-acfm working model of the AHPC. Some additional modifications to the 200-acfm AHPC were made during April through June, and extensive shakedown and cold-flow testing were completed. The initial modeling results by ALENTEC (presented in the last quarterly report) indicated that the flow baffling as constructed should be sufficient to direct most of the flow into the electrostatic precipitator (ESP) zone of the AHPC before it reaches the bags. Cold-flow tests now confirm that the baffle configuration is sufficient for proper AHPC performance. Cold-flow multiple cleaning cycle tests show that there is a huge benefit to having the electric field on compared to having the field off. These tests also show that the AHPC functions properly and that pressure drop can be easily controlled.
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.
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Author :
language : en
Publisher:
Release Date : 1977
written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with categories.
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Author :
language : en
Publisher:
Release Date : 1939
written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1939 with categories.
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.
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.
Mercury Control With Advanced Hybrid Particulate Collector
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Author :
language : en
Publisher:
Release Date : 2005
Mercury Control With 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 2005 with categories.
This project was awarded under U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL) Program Solicitation DE-PS26-00NT40769 and specifically addressed Technical Topical Area 4-Testing Novel and Less Mature Control Technologies on Actual Flue Gas at the Pilot Scale. The project team included the Energy & Environmental Research Center (EERC) as the main contractor; W.L. Gore & Associates, Inc., as a technical and financial partner; and the Big Stone Power Plant operated by Otter Tail Power Company, host for the field-testing portion of the research. Since 1995, DOE has supported development of a new concept in particulate control called the advanced hybrid particulate collector (AHPC). The AHPC has been licensed to W.L. Gore & Associates, Inc., and has been marketed as the Advanced Hybrid{trademark} filter by Gore. The Advanced Hybrid{trademark} filter combines the best features of electrostatic precipitators (ESPs) and baghouses in a unique configuration, providing major synergism between the two collection methods, both in the particulate collection step and in the transfer of dust to the hopper. The Advanced Hybrid{trademark} filter provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emissions with conventional ESPs, and it solves the problem of reentrainment and re-collection of dust in conventional baghouses. The Advanced Hybrid{trademark} filter also appears to have unique advantages for mercury control over baghouses or ESPs as an excellent gas--solid contactor. The objective of the project was to demonstrate 90% total mercury control in the Advanced Hybrid{trademark} filter at a lower cost than current mercury control estimates. The approach included bench-scale batch tests, larger-scale pilot testing with real flue gas on a coal-fired combustion system, and field demonstration at the 2.5-MW (9000-acfm) scale at a utility power plant to prove scale-up and demonstrate longer-term mercury control. An additional task was included in this project to evaluate mercury oxidation upstream of a dry scrubber by using mercury oxidants. This project demonstrated at the pilot-scale level a technology that provides a cost-effective technique to control mercury and, at the same time, greatly enhances fine particulate collection efficiency. The technology can be used to retrofit systems currently employing inefficient ESP technology as well as for new construction, thereby providing a solution for improved fine particulate control combined with effective mercury control for a large segment of the U.S. utility industry as well as other industries.