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Title: Arapahoe low-sulfur-coal fabric filter pilot plant: Volume 3, Characterization of sonic-assisted reverse-gas cleaning, May 1982--May 1984: Final report

Abstract

During 1981 intense interest developed in the utility industry regarding the use of horns as a supplement to reverse-gas bag cleaning. To characterize and assess sonic-enhanced, reverse-gas cleaning, horns were installed at EPRI's 10-MW Fabric Filter Pilot Plant (FFPP) at its Arapahoe Test Facility located at Public Service Company of Colorado's Arapahoe Steam Plant in Denver, Colorado. In addition to the FFPP tests, laboratory studies of sonic cleaning were conducted to supplement the pilot plant data. To verify the applicability of the pilot plant and laboratory work to full-scale baghouses, field data from utility baghouses in which horns had been installed were collected. The purpose of the testing was to determine the range of horn frequencies and total output power most effective in removing residual dustcakes from bags in reverse-gas-cleaned baghouses and, hence, most effective in reducing baghouse pressure drop. No attempt was made to identify a specific horn or horns most appropriate for baghouse application. The report presents the results of this testing from May 1982 through May 1984. Results showed that horns can dislodge a significant fraction of residual dustcake, thereby reducing pressure drop by as much as 60% without any noticeable reduction in bag life. Although outletmore » particulate emissions are higher with sonic assistance, they are generally <0.01 lb/10/sup 6/ Btu---below the 1979 New Source Performance Standards of 0.03 lb/MBtu. The overall results of this sonic horn investigation indicate that reverse-gas cleaning with sonic assistance definitely promotes more effective bag filter cleaning and lower pressure drop, and it should be considered as a supplement for most reverse-gas cleaned baghouse applications. 10 refs., 37 figs., 7 tabs.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Electric Power Research Inst., Palo Alto, CA (USA); Southern Research Inst., Birmingham, AL (USA)
OSTI Identifier:
6425012
Report Number(s):
EPRI-CS-3862-Vol.3
ON: TI89007469
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; 01 COAL, LIGNITE, AND PEAT; FABRIC FILTERS; CLEANING; FOSSIL-FUEL POWER PLANTS; HOT GAS CLEANUP; SOUND WAVES; USES; AIR POLLUTION CONTROL; BAGHOUSES; BENCH-SCALE EXPERIMENTS; EXPERIMENTAL DATA; FLUE GAS; FREQUENCY MEASUREMENT; MAINTENANCE; MECHANICAL VIBRATIONS; PARTICULATES; PILOT PLANTS; PROGRESS REPORT; CONTROL; DATA; DOCUMENT TYPES; EQUIPMENT; FILTERS; FUNCTIONAL MODELS; GASEOUS WASTES; INFORMATION; NUMERICAL DATA; PARTICLES; POLLUTION CONTROL; POLLUTION CONTROL EQUIPMENT; POWER PLANTS; PURIFICATION; THERMAL POWER PLANTS; WASTES; 200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions; 010800 - Coal, Lignite, & Peat- Waste Management

Citation Formats

Cushing, K M, Bustard, C J, Pontius, D H, Pyle, B E, and Smith, W B. Arapahoe low-sulfur-coal fabric filter pilot plant: Volume 3, Characterization of sonic-assisted reverse-gas cleaning, May 1982--May 1984: Final report. United States: N. p., 1989. Web.
Cushing, K M, Bustard, C J, Pontius, D H, Pyle, B E, & Smith, W B. Arapahoe low-sulfur-coal fabric filter pilot plant: Volume 3, Characterization of sonic-assisted reverse-gas cleaning, May 1982--May 1984: Final report. United States.
Cushing, K M, Bustard, C J, Pontius, D H, Pyle, B E, and Smith, W B. 1989. "Arapahoe low-sulfur-coal fabric filter pilot plant: Volume 3, Characterization of sonic-assisted reverse-gas cleaning, May 1982--May 1984: Final report". United States.
@article{osti_6425012,
title = {Arapahoe low-sulfur-coal fabric filter pilot plant: Volume 3, Characterization of sonic-assisted reverse-gas cleaning, May 1982--May 1984: Final report},
author = {Cushing, K M and Bustard, C J and Pontius, D H and Pyle, B E and Smith, W B},
abstractNote = {During 1981 intense interest developed in the utility industry regarding the use of horns as a supplement to reverse-gas bag cleaning. To characterize and assess sonic-enhanced, reverse-gas cleaning, horns were installed at EPRI's 10-MW Fabric Filter Pilot Plant (FFPP) at its Arapahoe Test Facility located at Public Service Company of Colorado's Arapahoe Steam Plant in Denver, Colorado. In addition to the FFPP tests, laboratory studies of sonic cleaning were conducted to supplement the pilot plant data. To verify the applicability of the pilot plant and laboratory work to full-scale baghouses, field data from utility baghouses in which horns had been installed were collected. The purpose of the testing was to determine the range of horn frequencies and total output power most effective in removing residual dustcakes from bags in reverse-gas-cleaned baghouses and, hence, most effective in reducing baghouse pressure drop. No attempt was made to identify a specific horn or horns most appropriate for baghouse application. The report presents the results of this testing from May 1982 through May 1984. Results showed that horns can dislodge a significant fraction of residual dustcake, thereby reducing pressure drop by as much as 60% without any noticeable reduction in bag life. Although outlet particulate emissions are higher with sonic assistance, they are generally <0.01 lb/10/sup 6/ Btu---below the 1979 New Source Performance Standards of 0.03 lb/MBtu. The overall results of this sonic horn investigation indicate that reverse-gas cleaning with sonic assistance definitely promotes more effective bag filter cleaning and lower pressure drop, and it should be considered as a supplement for most reverse-gas cleaned baghouse applications. 10 refs., 37 figs., 7 tabs.},
doi = {},
url = {https://www.osti.gov/biblio/6425012}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {2}
}

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