Demonstration of a Full-Scale Retrofit of the Advanced Hybrid Particulate Collector Technology

Hrdlicka, Tom; Swanson, William

doi:10.2172/889758

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…Different to COHPAC combining ESP and Bag in a series, AHPC combines the best features of 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 transfer of dust to the hopper [111,112]. However, till now, the AHPC still encounters the problems such as non-effective performance of ESP portion and the non-optimal synergy of filter bags with ESP [112].…”

Section: The Development Of Hybrid Esp/bag Technologymentioning

confidence: 99%

“…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 transfer of dust to the hopper [111,112]. However, till now, the AHPC still encounters the problems such as non-effective performance of ESP portion and the non-optimal synergy of filter bags with ESP [112]. Now, on the basis of the fundamental studies and referring the previous experience above, our research group self-developed a novel Tsinghua hybrid ESP/BAG particulate collection technology (THEBPC) by optimize the porous-plate design of ESP and synergy of bags with ESP.…”

Section: The Development Of Hybrid Esp/bag Technologymentioning

confidence: 99%

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Studies on formation and control of combustion particulate matter in China: A review

Yao

et al. 2009

Energy

126

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Section: The Development Of Hybrid Esp/bag Technologymentioning

confidence: 99%

Section: The Development Of Hybrid Esp/bag Technologymentioning

confidence: 99%

Studies on formation and control of combustion particulate matter in China: A review

Yao

et al. 2009

Energy

126

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“…However, a single BF or ESP has little ability to capture fine particulates; for fine particle removal, combinations of conventional BFs and ESPs have received considerable attention (Kanaoka et al, 2001;Christofides et al, 2007;Bologa et al, 2009;Park et al, 2012;Boudhan et al, 2018;Wang et al, 2018). Over 1996Over -2006, the compact hybrid particulate collector and the advanced hybrid particulate collector have been developed as typical representatives of this hybrid approach (Chang, 1996;Hrdlicka and Swanson, 2006;Miller and Schelkoph, 2001). Electrically energized fibrous filters constitute the theoretical basis of the hybrid BF-ESP technology.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Performance of Filtration-charged Particles in a Reversed Electric Field

Chang

Jia

Xiang

et al. 2019

Aerosol Air Qual. Res.

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Electrical forces can be applied to enhance fabric filters' ability to remove fine particles. To this end, we developed an experimental apparatus consisting of a conventional wire-tube particle precharger and fibrous filters positioned in a generated reversed external electric field. The charging and collection processes were separately accomplished in two stages, and we evaluated the device's ability to filter filtration-charged particles with a diameter of ≤ 2.5 µm. This device exhibited a higher electric field strength, higher collection efficiency, lower pressure drop, and lower electric potential than conventional devices due to the positioning of the wire and grounded electrodes close to the bag and the repulsion of the charged particles by the reversed electric field. When the face velocity was 2.5 m min -1 , the collection efficiency for the charged particles with the reversed electric field was 8.4% and 64.4% higher than the efficiencies for the charged and uncharged particles, respectively, without the field. The charged particles also displayed a pressure drop when the field was applied that was 10% lower and 5% higher than those of the uncharged and charged particles, respectively, when the field was absent. A negative direct current supply was necessary to direct the deposition of the charged particles, and neither a spark discharge nor a back corona was observed while using the reversed-electric-field apparatus, which, according to our results, enables the removal of filtration-charged particles at face velocities beyond the usual range.

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“…The combination of membrane filter media, small ESP, high A/C ratio, and unique geometry meets this challenge. Details of the development of the Advanced Hybrid ™ filter have been previously reported (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18).…”

Section: Introductionmentioning

confidence: 99%

Subtask 2.13 - Advanced Hybrid Particulate Collector-Fundamental Performance

Miller¹

2007

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Under the Power Plant Improvement Initiative Program funded by the U.S. Department of Energy, a full-scale Advanced Hybrid™ filter was installed at the Big Stone Plant, with start-up in October 2002. The Advanced Hybrid™ 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™ filter technology, the first fields of the ESP were also converted into an Advanced Hybrid™ 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 highvoltage 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™ filter housing into a pulse-jet fabric filter. i

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Demonstration of a Full-Scale Retrofit of the Advanced Hybrid Particulate Collector Technology

Abstract: This document summarizes the operational results of a project titled "Demonstration of a Full-Scale

Cited by 4 publications

References 6 publications

Studies on formation and control of combustion particulate matter in China: A review

Studies on formation and control of combustion particulate matter in China: A review

Investigation of the Performance of Filtration-charged Particles in a Reversed Electric Field

Subtask 2.13 - Advanced Hybrid Particulate Collector-Fundamental Performance

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