The Experts below are selected from a list of 591 Experts worldwide ranked by ideXlab platform

E. Hughes - One of the best experts on this subject based on the ideXlab platform.

  • Biomass Cofiring at Seward Station: An update
    2000
    Co-Authors: Joseph J. Battista, David A. Tillman, E. Hughes
    Abstract:

    Sithe Energies, under a cooperative agreement with EPRI, the US Department of Energy, the Biomass Interest Group (BIG) and the Upgraded Coal Interest Group (UCIG), has developed a demonstration of Cofiring Biomass with pulverized coal at the Seward Generating Station on Boiler No. 12. This demonstration included construction of a facility to receive, screen, store, and transport sawdust into a front-fired pulverized coal boiler. This facility has several distinctive features including the sawdust receiving system, the silo storage for processed Biomass, and the injection system using the centerpipe of the coal burners. The Biomass is prepared separately and transported separately from the coal. The wood waste is then injected into the center of the coal flame and burned there for optimum biofuel performance. This demonstration, involving an extended period of Cofiring testing, is based upon successful parametric tests conducted in December, 1996 and July, 1997. these tests documented the impact of Cofiring, in the short term, on capacity, efficiency, and emissions. Those results are now being evaluated over a long term period. Additionally, operational and maintenance issues are being addressed with this demonstration and modifications have been made to improve the handling of the fuel. This paper describes the Cofiringmore » system, and reviews progress to date with the combustion tests.« less

  • Biomass Cofiring at Seward Station
    Biomass and Bioenergy, 2000
    Co-Authors: Joseph J. Battista, E. Hughes, David A. Tillman
    Abstract:

    Abstract Sithe Energies, under a cooperative agreement with EPRI, the US Department of Energy, the Biomass Interest Group (BIG) and the Upgraded Coal Interest Group (UCIG), has developed a demonstration of Cofiring Biomass with pulverized coal at the Seward Generating Station on Boiler #12. This demonstration, constructed and tested by Foster Wheeler Development Corporation (FWDC) included construction of a facility to receive, screen, store and transport sawdust into a front-fired pulverized coal boiler. This facility has several distinctive features including the sawdust receiving system, the silo storage for processed Biomass, and the injection system using the centerpipe of the coal burners. The Biomass is prepared separately and transported separately from the coal. The wood waste is then injected into the center of the coal flame and burned there for optimum biofuel performance. This demonstration, involving an extended period of Cofiring testing, is based upon successful parametric tests conducted in December, 1996 and July, 1997. These tests documented the impact of Cofiring, in the short term, on capacity, efficiency and emissions. Those results are now being evaluated over a long-term period. Additionally, operational and maintenance issues are being addressed with this demonstration and modifications have been made to improve the handling of the fuel. This paper describes the Cofiring system, and reviews progress to date with the combustion tests.

  • commercializing Biomass coal Cofiring the process status and prospect
    1999
    Co-Authors: D. Tillman, E. Hughes, S Plasynski
    Abstract:

    Recently there has been considerable emphasis on Cofiring Biomass opportunity fuels with coal in pulverized coal (PC) and cyclone boilers owned and operated by electricity generating utilities in order to address such issues as potential portfolio standards, voluntary actions to reduce fossil CO{sub 2} emissions, customer service, and the generation of green power within the context of deregulation. Biomass fuels include such materials as wood waste, short rotation woody crops, short rotation herbaceous crops (e.g., switchgrass), alfalfa stems, and various types of manure. The Electric Power Research Institute (EPRI), along with the Tennessee Valley Authority (TVA) and other utilities such as GPU Genco, Northern Indiana Public Service Company (NIPSCO), Central and South West Utilities (C and SW), Southern Company, Madison Gas and Electric (MG and E), New York State Electric and Gas (NYSEG) and others developed a concerted effort to commercialize direct combustion Cofiring of Biomass with coal. The USDOE joined the program with a cooperative agreement between the Federal Energy Technology Center (FETC) and EPRI; this agreement was extensively supported by the Energy Efficiency and Renewable Energy (EERE) Biomass Power Program element of USDOE. A variety of biofuels and fuel combinations have been analyzed. Two techniques were developed: blendingmore » the Biomass and coal in the fuel handling system and feeding that blend to the boiler; and preparing the biofuel separately from coal, and injecting it into the boiler without impacting the conventional coal delivery system. Commercialization proceeded beginning with engineering and economic studies, parametric testing, and the construction of demonstration projects. The technology is now ready for commercial deployment. This paper reviews the process of commercialization, describes several of the key projects, and details some of the key lessons learned regarding material handling systems, boiler performance, and institutional issues. It then projects the future including second generation gasification based Cofiring.« less

  • fetc epri Biomass Cofiring cooperative agreement quaterly technical report january 1 march 30m 1997
    Other Information: PBD: Dec 1997, 1997
    Co-Authors: E. Hughes, D. Tillman
    Abstract:

    Cofiring is considered to be the most promising near-term approach to fossil C0{sub 2} emissions mitigation through Biomass usage. Consequently FETC and EPRI have entered into a cooperative agreement: `Cofiring Biomass and Waste-Derived fuels in Electric Utility Coal- Fired Boilers.` This agreement supports sixteen (16) EPRI research projects, each contributing to the commercialization of systems to address greenhouse gas emissions. These projects include: (1) Cofiring combustion testing at the Seward Generating Station of GPU Genco; (2) fuel preparation testing at the Greenidge Generating Station of NYSEG; (3) precommercial testing of Cofiring at the Allen and Colbert Fossil Plants of TVA; (4) testing of switchgrass Cofiring at the Blount St. Station of Madison Gas & Electric; (5) high percentage Biomass Cofiring with Southern Company; (6) urban wood waste Cofiring at the supercritical cyclone boiler at Michigan City Generating Station of Northern Indiana Public Service Co. (NIPSCO); (7) evaluation of switchgrass Cofiring with Nebraska Public Power District at Sandia National Laboratories in Livermore, CA; (8) waste plastics Cofiring with Duke Power in a tangentially-fired pulverized coal (PC) boiler; (9) Cofiring a mixture of plastics, fiber, and pulp industry wastes with South Carolina Electric and Gas; (10) urban wood waste Cofiring evaluation andmore » testing by the University of Pittsburgh in stoker boilers; (11) assessment of toxic emissions from Cofiring of wood and coal; (12) development of fuel and power plant models for analysis and interpretation of Cofiring results; (13) analysis of C0{sub 2} utilization in algal systems for wastewater treatment; (14) combustion testing and combustor development focusing on high percentage Cofiring; (15) analysis of problems and potential solutions to the sale of flyash from coal-fired boilers practicing Cofiring; and (16) analysis of C0{sub 2} capture and disposal systems. During the second quarter of this contract, from January 1, 1997 through March 31, 1997, significant progress has been made on these projects. This progress focuses upon analysis of data from the Cofiring tests, construction of systems to promote additional Cofiring tests, and initiation of tasks evaluating alternatives to Cofiring. This report contains a brief description of the progress made during the second quarter of the contract, focusing upon test results from the Seward Generating Station, where parametric testing at a wall-fired PC boiler was used to evaluate Cofiring using separate feeding of wood and coal to the energy generation system.« less

D. Tillman - One of the best experts on this subject based on the ideXlab platform.

  • commercializing Biomass coal Cofiring the process status and prospect
    1999
    Co-Authors: D. Tillman, E. Hughes, S Plasynski
    Abstract:

    Recently there has been considerable emphasis on Cofiring Biomass opportunity fuels with coal in pulverized coal (PC) and cyclone boilers owned and operated by electricity generating utilities in order to address such issues as potential portfolio standards, voluntary actions to reduce fossil CO{sub 2} emissions, customer service, and the generation of green power within the context of deregulation. Biomass fuels include such materials as wood waste, short rotation woody crops, short rotation herbaceous crops (e.g., switchgrass), alfalfa stems, and various types of manure. The Electric Power Research Institute (EPRI), along with the Tennessee Valley Authority (TVA) and other utilities such as GPU Genco, Northern Indiana Public Service Company (NIPSCO), Central and South West Utilities (C and SW), Southern Company, Madison Gas and Electric (MG and E), New York State Electric and Gas (NYSEG) and others developed a concerted effort to commercialize direct combustion Cofiring of Biomass with coal. The USDOE joined the program with a cooperative agreement between the Federal Energy Technology Center (FETC) and EPRI; this agreement was extensively supported by the Energy Efficiency and Renewable Energy (EERE) Biomass Power Program element of USDOE. A variety of biofuels and fuel combinations have been analyzed. Two techniques were developed: blendingmore » the Biomass and coal in the fuel handling system and feeding that blend to the boiler; and preparing the biofuel separately from coal, and injecting it into the boiler without impacting the conventional coal delivery system. Commercialization proceeded beginning with engineering and economic studies, parametric testing, and the construction of demonstration projects. The technology is now ready for commercial deployment. This paper reviews the process of commercialization, describes several of the key projects, and details some of the key lessons learned regarding material handling systems, boiler performance, and institutional issues. It then projects the future including second generation gasification based Cofiring.« less

  • fetc epri Biomass Cofiring cooperative agreement quaterly technical report january 1 march 30m 1997
    Other Information: PBD: Dec 1997, 1997
    Co-Authors: E. Hughes, D. Tillman
    Abstract:

    Cofiring is considered to be the most promising near-term approach to fossil C0{sub 2} emissions mitigation through Biomass usage. Consequently FETC and EPRI have entered into a cooperative agreement: `Cofiring Biomass and Waste-Derived fuels in Electric Utility Coal- Fired Boilers.` This agreement supports sixteen (16) EPRI research projects, each contributing to the commercialization of systems to address greenhouse gas emissions. These projects include: (1) Cofiring combustion testing at the Seward Generating Station of GPU Genco; (2) fuel preparation testing at the Greenidge Generating Station of NYSEG; (3) precommercial testing of Cofiring at the Allen and Colbert Fossil Plants of TVA; (4) testing of switchgrass Cofiring at the Blount St. Station of Madison Gas & Electric; (5) high percentage Biomass Cofiring with Southern Company; (6) urban wood waste Cofiring at the supercritical cyclone boiler at Michigan City Generating Station of Northern Indiana Public Service Co. (NIPSCO); (7) evaluation of switchgrass Cofiring with Nebraska Public Power District at Sandia National Laboratories in Livermore, CA; (8) waste plastics Cofiring with Duke Power in a tangentially-fired pulverized coal (PC) boiler; (9) Cofiring a mixture of plastics, fiber, and pulp industry wastes with South Carolina Electric and Gas; (10) urban wood waste Cofiring evaluation andmore » testing by the University of Pittsburgh in stoker boilers; (11) assessment of toxic emissions from Cofiring of wood and coal; (12) development of fuel and power plant models for analysis and interpretation of Cofiring results; (13) analysis of C0{sub 2} utilization in algal systems for wastewater treatment; (14) combustion testing and combustor development focusing on high percentage Cofiring; (15) analysis of problems and potential solutions to the sale of flyash from coal-fired boilers practicing Cofiring; and (16) analysis of C0{sub 2} capture and disposal systems. During the second quarter of this contract, from January 1, 1997 through March 31, 1997, significant progress has been made on these projects. This progress focuses upon analysis of data from the Cofiring tests, construction of systems to promote additional Cofiring tests, and initiation of tasks evaluating alternatives to Cofiring. This report contains a brief description of the progress made during the second quarter of the contract, focusing upon test results from the Seward Generating Station, where parametric testing at a wall-fired PC boiler was used to evaluate Cofiring using separate feeding of wood and coal to the energy generation system.« less

David A. Tillman - One of the best experts on this subject based on the ideXlab platform.

  • blending coal with Biomass Cofiring Biomass with coal
    2012
    Co-Authors: David A. Tillman, Dao N B Duong, Stanley N Harding
    Abstract:

    This chapter discusses the importance of lignocellulosic materials as fuel. It is explained that when fuels are blended, one is the dominant fuel and the other is a supplemental fuel. Burning behaviors vary depending on the fuel combinations involved. The four classifications of coal—lignite, subbituminous, bituminous, and anthracite are introduced. The carbon cycle is explained. Cyclone-fired boilers are discussed. Nitrogen and carbon evolution pathways are explained.

  • EPRI-USDOE COOPERATIVE AGREEMENT: Cofiring Biomass WITH COAL
    2001
    Co-Authors: David A. Tillman
    Abstract:

    The entire Electric Power Research Institute (EPRI) Cofiring program has been in existence of some 9 years. This report presents a summary of the major elements of that program, focusing upon the following questions: (1) In pursuit of increased use of renewable energy in the US economy, why was electricity generation considered the most promising target, and why was Cofiring pursued as the most effective near-term technology to use in broadening the use of Biomass within the electricity generating arena? (2) What were the unique accomplishments of EPRI before the development of the Cooperative Agreement, which made developing the partnership with EPRI a highly cost-effective approach for USDOE? (3) What were the key accomplishments of the Cooperative Agreement in the development and execution of test and demonstration programs-accomplishments which significantly furthered the process of commercializing Cofiring?

  • Biomass Cofiring at Seward Station: An update
    2000
    Co-Authors: Joseph J. Battista, David A. Tillman, E. Hughes
    Abstract:

    Sithe Energies, under a cooperative agreement with EPRI, the US Department of Energy, the Biomass Interest Group (BIG) and the Upgraded Coal Interest Group (UCIG), has developed a demonstration of Cofiring Biomass with pulverized coal at the Seward Generating Station on Boiler No. 12. This demonstration included construction of a facility to receive, screen, store, and transport sawdust into a front-fired pulverized coal boiler. This facility has several distinctive features including the sawdust receiving system, the silo storage for processed Biomass, and the injection system using the centerpipe of the coal burners. The Biomass is prepared separately and transported separately from the coal. The wood waste is then injected into the center of the coal flame and burned there for optimum biofuel performance. This demonstration, involving an extended period of Cofiring testing, is based upon successful parametric tests conducted in December, 1996 and July, 1997. these tests documented the impact of Cofiring, in the short term, on capacity, efficiency, and emissions. Those results are now being evaluated over a long term period. Additionally, operational and maintenance issues are being addressed with this demonstration and modifications have been made to improve the handling of the fuel. This paper describes the Cofiringmore » system, and reviews progress to date with the combustion tests.« less

  • Biomass Cofiring at Seward Station
    Biomass and Bioenergy, 2000
    Co-Authors: Joseph J. Battista, E. Hughes, David A. Tillman
    Abstract:

    Abstract Sithe Energies, under a cooperative agreement with EPRI, the US Department of Energy, the Biomass Interest Group (BIG) and the Upgraded Coal Interest Group (UCIG), has developed a demonstration of Cofiring Biomass with pulverized coal at the Seward Generating Station on Boiler #12. This demonstration, constructed and tested by Foster Wheeler Development Corporation (FWDC) included construction of a facility to receive, screen, store and transport sawdust into a front-fired pulverized coal boiler. This facility has several distinctive features including the sawdust receiving system, the silo storage for processed Biomass, and the injection system using the centerpipe of the coal burners. The Biomass is prepared separately and transported separately from the coal. The wood waste is then injected into the center of the coal flame and burned there for optimum biofuel performance. This demonstration, involving an extended period of Cofiring testing, is based upon successful parametric tests conducted in December, 1996 and July, 1997. These tests documented the impact of Cofiring, in the short term, on capacity, efficiency and emissions. Those results are now being evaluated over a long-term period. Additionally, operational and maintenance issues are being addressed with this demonstration and modifications have been made to improve the handling of the fuel. This paper describes the Cofiring system, and reviews progress to date with the combustion tests.

Mohsen Assadi - One of the best experts on this subject based on the ideXlab platform.

  • impact of Cofiring Biomass with coal in power plants a techno economic assessment
    Biomass & Bioenergy, 2009
    Co-Authors: Sudipta De, Mohsen Assadi
    Abstract:

    Biomass Cofiring in existing coal-fired boilers has emerged as a prospective option for voluntary reduction in CO2 emissions to mitigate the global warming problem. However, the associated cost increase plays a crucial role for this retrofitting. A techno-economic model for the estimation of economics of Cofiring is presented in this paper using the pilot plant test results for Biomass Cofiring and general heat and mass balance. A sensitivity analysis is carried out with this developed model to investigate the effects of different operating and logical parameters on the economics of Biomass coal Cofiring process. Significant results of this sensitivity analysis are also presented in this paper. The presented results may be useful for a plant owner to decide regarding the economic feasibility of retrofitting for Biomass Cofiring. On the other hand, it will also help to estimate the required incentives for this purpose.

Tillman D. - One of the best experts on this subject based on the ideXlab platform.

  • FETC/EPRI Biomass Cofiring Cooperative Agreement. Quaterly technical report, January 1-March 30m 1997
    Electric Power Research Inst. Palo Alto CA (United States), 1997
    Co-Authors: Hughes E., Tillman D.
    Abstract:

    Cofiring is considered to be the most promising near-term approach to fossil C0{sub 2} emissions mitigation through Biomass usage. Consequently FETC and EPRI have entered into a cooperative agreement: `Cofiring Biomass and Waste-Derived fuels in Electric Utility Coal- Fired Boilers.` This agreement supports sixteen (16) EPRI research projects, each contributing to the commercialization of systems to address greenhouse gas emissions. These projects include: (1) Cofiring combustion testing at the Seward Generating Station of GPU Genco; (2) fuel preparation testing at the Greenidge Generating Station of NYSEG; (3) precommercial testing of Cofiring at the Allen and Colbert Fossil Plants of TVA; (4) testing of switchgrass Cofiring at the Blount St. Station of Madison Gas & Electric; (5) high percentage Biomass Cofiring with Southern Company; (6) urban wood waste Cofiring at the supercritical cyclone boiler at Michigan City Generating Station of Northern Indiana Public Service Co. (NIPSCO); (7) evaluation of switchgrass Cofiring with Nebraska Public Power District at Sandia National Laboratories in Livermore, CA; (8) waste plastics Cofiring with Duke Power in a tangentially-fired pulverized coal (PC) boiler; (9) Cofiring a mixture of plastics, fiber, and pulp industry wastes with South Carolina Electric and Gas; (10) urban wood waste Cofiring evaluation and testing by the University of Pittsburgh in stoker boilers; (11) assessment of toxic emissions from Cofiring of wood and coal; (12) development of fuel and power plant models for analysis and interpretation of Cofiring results; (13) analysis of C0{sub 2} utilization in algal systems for wastewater treatment; (14) combustion testing and combustor development focusing on high percentage Cofiring; (15) analysis of problems and potential solutions to the sale of flyash from coal-fired boilers practicing Cofiring; and (16) analysis of C0{sub 2} capture and disposal systems. During the second quarter of this contract, from January 1, 1997 through March 31, 1997, significant progress has been made on these projects. This progress focuses upon analysis of data from the Cofiring tests, construction of systems to promote additional Cofiring tests, and initiation of tasks evaluating alternatives to Cofiring. This report contains a brief description of the progress made during the second quarter of the contract, focusing upon test results from the Seward Generating Station, where parametric testing at a wall-fired PC boiler was used to evaluate Cofiring using separate feeding of wood and coal to the energy generation system