Download or read book Engineering Development of Advanced Coal fired Low Emission Boiler Systems Final Quarterly Technical Progress Report July September 1995 written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Development of Advanced Coal fired Low emission Boiler Systems Technical Progress Report No 12 July September 1995 written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the Project is the expedited commercialization of advanced coal-fired low-emission boiler systems. The goals for emissions and plant efficiency are: NO[sub x] emissions not greater than 0.1 lb/million Btu; SO[sub x] emissions not greater than 0.1 lb/million Btu; particulate emissions not greater than 0.01 lb/million Btu; and net plant efficiency (HHV basis) not less than 42%. Other goals include: improved ash disposability and reduced waste generation; and reduced air toxics emissions. The final deliverables are a design data base that will allow future coal-fired power plants to meet the stated objectives, and a preliminary design of a Commercial Generation Unit. The work in Phase I covered a 24- month period and included system analysis, RD & T Plan formulation, component definition, and preliminary Commercial Generating Unit (CGU) design. Phase II will cover a 15-month period and will include preliminary Proof-of-Concept Test Facility (POCTF) design and subsystem testing. Phase III will cover a 9-month period and will produce a revised CGU design and a revised POCTF design, cost estimate and a test plan. Phase IV, the final Phase, will cover a 36- month period and will include POCTF detailed design, construction, testing, and evaluation.
Download or read book Engineering Development of Advanced Coal fired Low Emission Boiler Systems Quarterly Technical Progress Report July September 1994 written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Development of Advanced Coal fired Low emissions Boiler Systems Quarterly Report October 1994 December 1994 January 1995 March 1995 April 1995 June 1995 July 1995 September 1995 October 1995 December 1995 written by and published by . This book was released on 1996 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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(subscript x) subsystem; SO2/particulate/air toxics/solid by-product subsystems; controls and sensors subsystems; boiler subsystem; and balance of plant subsystem.
Download or read book Engineering Development of Advanced Coal fired Low Emission Boiler Systems Fourth Quarterly Technical Progress Report July 1993 September 1993 written by and published by . This book was released on 1993 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The LEBS plant design will be based on a high-sulfur Illinois No. 6 coal. This coal meets program selection requirements of extensive reserves and production, sulfur content, and representativeness. Two alternate test coals have been selected to examine fuel effects, and to broaden the range of application of the technology being developed. The alternate coals are a medium sulfur, Pittsburgh No. 8 bituminous, and a Wyoming subbituminous coal. The efficiency goals for the LEBS are challenging, particularly with the demands environmental controls are likely to place on auxiliary power. Table 1 shows estimates of overall plant efficiencies for three steam cycles: (1) a 2400 psi subcritical single reheat cycle typical of current plants; (2) a 3500 psi supercritical single reheat cycle; and (3) an advanced 4500 psi double reheat cycle. The plant heat rates are based on maximum boiler efficiency and minimum auxiliary power requirements consistent with conventional plant design for the design and alternate coals. The aggressive efficiency goals clearly require advanced steam conditions, as well as careful management of any added auxiliary power requirements for environmental controls. The EPRI SOAPP (State-of-the-Art Power Plant) project has selected the 4500 psi cycle as maximizing plant efficiency while minimizing generating costs for a commercial plant to be constructed by the year 2000. This program will incorporate the SOAPP base case cycle. The LESS design will incorporate a high-efficiency, once-through boiler design known as the Benson. Significant improvements in availability and operating flexibility have made this boiler design the system of choice for European power generation over the last fifteen years.
Download or read book Engineering Development of Advanced Coal fired Low emission Boiler Systems Quarterly Technical Progress Report April 1 June 30 1993 written by and published by . This book was released on 1993 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary sketches of the furnace setting with dimensions and other appropriate data was distributed to appropriate boiler design groups. The purpose of this work was to define and/or establish unique mechanical and support requirements and furnace water circulation requirements. A preliminary convection pass arrangement and heating surface requirements were established. Initial computer runs indicate, as expected, that establishing even a preliminary arrangement to meet steam duty requirements was going to be a challenge. This due to slightly lower furnace exit gas temperatures (result of NO(subscript x) control conditions) and higher final steam temperatures (results increasing plant efficiency) than typical of conventional design. Work on the furnace and convection pass design for the base preliminary unit was completed only to the extent necessary to identify design deficiencies, prepare an arrangement drawing and determine budgetary cost. Engineering work has been completed to the extent planned in this subtask for the base preliminary unit, Advanced Overfire Air, including preliminary designs for the furnace, convection pass, pulverizers, airheaters, flues and ducts, preliminary general arrangement drawings, and budgetary cost estimates. Work is nearly complete on design of the LEBS unit control system based on control methods and philosophy established in the NO(subscript x) Control Subsystems. All appropriate information has been forwarded to Raytheon for use in completing BOP subsystem designs, site plot plans and preliminary generating plant cost analysis and comparison to a conventional plant.
Download or read book Ich tanze modern written by Peter Ballhause and published by . This book was released on 1956 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Development of Advanced Coal fired Low emission Boiler Systems Quarterly Technical Progress Report No 17 October 1 1996 December 31 1996 written by and published by . This book was released on 1997 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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(subscript x) and SO2 emission to one-sixth current NSPS limits and particulates to one- third current NSPS limits.
Download or read book Engineering Development of Advanced Coal fired Low emissions Boiler Systems Quarterly Project Technical Status Report July 1996 September 1996 written by and published by . This book was released on 1996 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of the NO(subscript x) Subsystem is to achieve continuous operation of the Low-Emissions Boiler System (LEBS) at NO(subscript x) emissions at or below 0.20 lb/MBtu through combustion techniques only, with a further target of 0.1 lb NO(subscript x)MBtu using supplementary advanced flue gas cleanup technologies if necessary. These goals places practical constraints that must be considered on the NO(subscript x) Subsystem design. Not only must the boiler be designed to achieve time-temperature mixing histories that minimize NO(subscript x), but it must also be designed to operate that way throughout its working lifetime. Therefore, NO(subscript x) minimization strategies must be integrated into the control systems for every boiler component from the pulverizers to the stack. Furthermore, these goals must be met without increases in carbon loss and CO emissions from the levels achieved with current low-NO(subscript x) combustion systems. Therefore, the NO(subscript x) Subsystem requires not only sound mechanical designs of burners, furnace surface, and staging air/fuel injectors, but also sensors and software to allow control of their operation. Through engineering analysis, experimental testing, and numerical modeling in Phase II, an advanced low-NO(subscript x) control system is being developed. The progress of these activities is presented in this report.
Download or read book Engineering Development of Advanced Coal fired Low emission Boiler Systems Technical Progress Report No 4 July September 1993 written by and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Development of Advanced Coal fired Low emission Boiler Systems Technical Progress Report No 11 April 1995 June 1995 written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Development of Advanced Coal fired Low emission Boiler Systems Technical Progress Report No 5 October December 1993 written by and published by . This book was released on 1994 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 partial 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(subscript 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.
Download or read book Engineering Development of Advanced Coal fired Low emission Boiler Systems Technical Progress Report No 10 January 1995 March 1995 written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Development of Advanced Coal fired Low Emission Boiler Systems Second Quarterly Final Technical Progress Report January 1993 March 1993 written by and published by . This book was released on 1993 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Illinois No. 6 coal was selected as the design coal. A specific source was identified to provide specifications for preliminary design efforts; it is a washed coal having 8% ash, 15.5% moisture, 3.4% sulfur, and 10,800 Btu/lb as received. The alternate coals are a Pittsburgh No. 8 medium sulfur bituminous and a Wyoming subbituminous. Also, a discussion of plant heat rates/efficiency was completed and forwarded to DOE. The key points were: (1) A supercritical cycle at 3500 psig/1000 F is required to meet the contract minimum goal of 38% efficiency, and an advanced steam cycle (4500 psig, 1100 F double reheat) is required to break the 40% level of efficiency with the design coal, assuming well-engineered, but conventional boiler efficiency/auxiliary power; (2) the plant efficiency is sensitive to coal selection, increasing for the medium sulfur coal, but decreasing for the subbituminous.
Download or read book Engineering Development of Advanced Coal fired Low emission Boiler Systems Quarterly Technical Progress Report and Monthly Status Report written by and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Project Work Plan was developed with joint participation by all subsystem teams. Comprehensive overall project activity schedules were developed for all individual B & W groups and subcontractors with participation in Phase I.
Download or read book Engineering Development of Advanced Coal fired Low emission Boiler Systems Technical Progress Report October December 1995 written by and published by . This book was released on 1995 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Development of Advanced Coal fired Low emission Boiler Systems written by and published by . This book was released on 1996 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the Project is the expedited commercialization of advanced coal-fired low-emission boiler systems. The Project is under budget and generally on schedule. The current status is shown in the Milestone Schedule Status Report included as Appendix A. Under Task 7--Component development and optimization, the CeraMem filter testing was completed. Due to an unacceptably high flue gas draft loss, which will not be resolved in the POCTF timeframe, a decision was made to change the design of the flue gas cleaning system from Hot SNO(subscript x){sup {trademark}} to an advanced dry scrubber called New Integrated Desulfurization (NID). However, it is recognized that the CeraMem filter still has the potential to be viable in pulverized coal systems. In Task 8-- Preliminary POCTF design, integrating and optimizing the performance and design of the boiler, turbine/generator and heat exchangers of the Kalina cycle as well as the balance of plant design were completed. Licensing activities continued. A NID system was substituted for the SNO(subscript x) Hot Process.
