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Title: [Engineering development of advanced coal-fired low-emission boiler systems]. Technical progress report, October--December 1995

Abstract

The overall objective of the Project is the expedited commercialization of advanced coal-fired low-emisssion boiler systems. The primary objectives are: NO{sub x} emissions, lb/million Btu; SO{sub 2} emissions, lb/million Btu; particulate emissions, lb/million Btu; and net plant efficiency, not less than 42%. The secondary objectives are: improved ash disposability; reduced waste generation; and reduced air toxics emissions. Accomplishments to date are summarized for the following tasks: task 1, project planning and management; task 7, component development and optimization; task 8, preliminary POC test facility design; task 9, subsystem test design and plan; task 10, subsystem test unit construction; and task 11, subsystem test operation and evaluation.

Authors:
;  [1]; ;  [2]
+ Show Author Affiliations
  1. ABB Environmental Systems, Birmingham, AL (United States)
  2. Raytheon Engineers and Constructors, Inc., Philadelphia, PA (United States)
Publication Date:
Research Org.:
Combustion Engineering, Inc., Windsor, CT (United States); ABB Environmental Systems, Birmingham, AL (United States); Raytheon Engineers and Constructors, Inc., Philadelphia, PA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
227700
Report Number(s):
DOE/PC/92159-T15
ON: DE96010225
DOE Contract Number:
AC22-92PC92159
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: [1995]
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; FOSSIL-FUEL POWER PLANTS; BOILERS; DESIGN; NITROGEN OXIDES; AIR POLLUTION ABATEMENT; COAL; COMBUSTION; SULFUR DIOXIDE; PARTICULATES; PROGRESS REPORT

Citation Formats

Wesnor, J.D., Bakke, E., Bender, D.J., and Kaminski, R.S.. [Engineering development of advanced coal-fired low-emission boiler systems]. Technical progress report, October--December 1995. United States: N. p., 1995. Web. doi:10.2172/227700.
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Wesnor, J.D., Bakke, E., Bender, D.J., & Kaminski, R.S.. [Engineering development of advanced coal-fired low-emission boiler systems]. Technical progress report, October--December 1995. United States. doi:10.2172/227700.
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Wesnor, J.D., Bakke, E., Bender, D.J., and Kaminski, R.S.. Sun . "[Engineering development of advanced coal-fired low-emission boiler systems]. Technical progress report, October--December 1995". United States. doi:10.2172/227700. https://www.osti.gov/servlets/purl/227700.
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@article{osti_227700,
title = {[Engineering development of advanced coal-fired low-emission boiler systems]. Technical progress report, October--December 1995},
author = {Wesnor, J.D. and Bakke, E. and Bender, D.J. and Kaminski, R.S.},
abstractNote = {The overall objective of the Project is the expedited commercialization of advanced coal-fired low-emisssion boiler systems. The primary objectives are: NO{sub x} emissions, lb/million Btu; SO{sub 2} emissions, lb/million Btu; particulate emissions, lb/million Btu; and net plant efficiency, not less than 42%. The secondary objectives are: improved ash disposability; reduced waste generation; and reduced air toxics emissions. Accomplishments to date are summarized for the following tasks: task 1, project planning and management; task 7, component development and optimization; task 8, preliminary POC test facility design; task 9, subsystem test design and plan; task 10, subsystem test unit construction; and task 11, subsystem test operation and evaluation.},
doi = {10.2172/227700},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Dec 31 00:00:00 EST 1995},
month = {Sun Dec 31 00:00:00 EST 1995}
}
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Technical Report:
View Technical Report (3.38 MB)
DOI:  10.2172/227700
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  • This report covers five quarters of work on the engineering development of a coal-fired low -emissions boiler systems. Contents include summaries of activities and key accomplishments for the following: project management; NO{sub x} subsystem; SO{sub 2}/particulate/air toxics/solid by-product subsystems; controls and sensors subsystems; boiler subsystem; and balance of plant subsystem.

  • ; ; ; ...
    This report describes the work performed between October 1 and December 31, 1996 by the ABB team on U.S. Department of Energy project ``Engineering Development of Advanced Coal-Fired Low-Emission Boiler Systems`` (LEBS), which is part of the DOE`s Combustion 2000 Program. The overall objective of the LEBS Project is to dramatically improve environmental performance of future coal-fired power plants without adversely impacting efficiency or the cost of electricity. Near-term technologies, i.e., advanced technologies that are partially developed, will be used to reduce NO{sub x} and SO{sub 2} emission to one-sixth current NSPS limits and particulates to one- third current NSPSmore » limits.« less

  • Preliminary subsystem designs were developed for a Low-Emission Boiler System. Key features of the NO{sub x} and Boiler Subsystem includes: deep staged combustion with advanced low NO{sub x} burners in a furnace arrangement designed to minimize NO{sub x} emission, advanced pulverizer design, advanced operating diagnostics and control integration of steam conditions, combustion, burner management, and sootblowing.

  • Work continued as planned and scheduled. Total expenditures are below budget. Task 2 is complete. Task 3 is complete except for R, D & T Plan -- Phase II. Task 4 is currently slightly behind schedule but is projected to finish on or ahead of schedule. Task 5 was started early. The following major deliverables were issued: (1) Technical Paper for `93 International Joint Power Generation Conference. (2) Technical Paper for IEA Second International Conference, and (3) Topical Report by EAR on Air Toxics. Subtask 4.1 -- Engineering Analysis in support of the CGU design is nearly complete and partialmore » design specifications are being employed in Task 5. Subtask 4.2 -- Experimental Research efforts consisted of the first series of Drop Tube Furnace tests. Data is being analyzed. Subtask 4.3 -- Modeling work to data resulted in input files for Boiler Simulation Facility and flow pattern convergence was attained. Particle combustion is the next step. This work will be reported on at the next Quarterly Project Review meeting. Task 5 was started early to facilitate Task 6 schedule and quality. Integration of the SNO{sub x} Hot Scheme into the boiler and turbine/feedwater train was optimized and design work on the boiler and ``backend`` is underway. Cost estimating assumptions and methodology were discussed at length and finalized. The RAM analysis is nearly complete. BOP engineering is in progress. No changes to the Work Plan are anticipated for the next quarter.« less

  • The project is on schedule and under budget. The current status is shown in the Milestone Schedule Report included as Appendix A. All Project Plans were updated based on the revised finding level authorized for FY95 and anticipated for FY96. Technology Transfer activities included {open_quotes}supplying{close_quotes} three executives and several team members to the LEBS Workshop, delivering a technical paper at a conference, and working on a Combustion 2000 Session for another conference. ABBES and CeraMem reached agreement concerning Task 7 work, including ownership and disposition of project-purchased equipment to be used during Task 7 and also during Task 11. Amore » test plan was prepared. Task 7 activities for the Low-NO{sub x} Firing System included computational modeling of the firing arrangement. Reasonable comparisons to experimental data previously obtained in the Boiler Simulation Facility were achieved. A kinetic evaluation for both baseline and low NO{sub x} firing arrangements was also performed, with results indicating that the final reducing zone within the main windbox has a dominant effect on NO{sub x} reduction, with higher temperatures being more favorable for lower NO{sub x}. A week of combustion testing was completed in the Fundamental Scale Burner Facility to examine the impact of integrated fuel staging (NO{sub x} reduction via the reburn mechanism), and to explore preliminary vertical staging concepts within the main windbox region. Preliminary results from this testing demonstrated the potential of vertical air staging within the main windbox to augment overfire air. Testing was performed to quantify the coal size distribution and power requirements for one (1) conventional static and four (4) dynamic classifier designs. Results from this testing show the dynamic classifier capable of producing finer grinds of coal at lower relative power requirements.« less