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CONTINUED DEVELOPMENT OF THE ROTARY COMBUSTOR FOR REFIRING PULVERIZED COAL BOILERS

Description: The Rotary Combustor is a novel concept for burning coal with low SO{sub 2} and NO{sub x} emissions. It burns crushed coal in a fluid bed where the bed is maintained in a rotating drum by centripetal force. Since this force may be varied, the combustor may be very compact, and thus be a direct replacement for a p.c. burner on existing boilers. The primary objective of this project is to demonstrate that a typical industrial boiler can be refired with the modified prototype Rotary Combustor to b… more
Date: November 1, 2000
Creator: Abbott, Murray F.; Mereb, Jamal B.; Hanson, Simon P. & Virr, Michael J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

EARLY ENTRANCE COPRODUCTION PLANT

Description: The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which produces at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals. The objective is to have these products produced by technologies capable of using synthesis gas derived from coal and/or other carbonaceous feedstock. The objective of Phase I is to determine the feasibility and define the concept for… more
Date: October 26, 2000
Creator: Abughazaleh, John S.; Ahmed, Mushtaq; Anand, Ashok; Anderson, John H.; Benham, Charles; Brent, Fred D. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

EARLY ENTRANCE COPRODUCTION PLANT

Description: The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which produces at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals. The objective is to have these products produced by technologies capable of using synthesis gas derived from coal and/or other carbonaceous feedstocks. The objective of Phase I is to determine the feasibility and define the concept fo… more
Date: February 15, 2001
Creator: Abughazaleh, John S.; Ahmed, Mushtaq; Anand, Ashok; Anderson, John H.; Benham, Charles; Brent, Fred D. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

EARLY ENTRANCE COPRODUCTION PLANT

Description: The overall objective of this project is the three-phase development of an Early Entrance Coproduction Plant (EECP) that produces at least one product from at least two of the following three categories: Electric power (or heat); Fuels; and Chemicals. The objective is to have these products produced by technologies capable of using synthesis gas derived from coal and/or some other carbonaceous feedstock, such as petroleum coke. The objective of Phase I was to determine the feasibility and defin… more
Date: May 17, 2001
Creator: Abughazaleh, John S.; Ahmed, Mushtaq; Anand, Ashok; Anderson, John H.; Benham, Charles; Brent, Fred D. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DIGESTER GAS - FUEL CELL - PROJECT

Description: GEW has been operating the first fuel cell in Europe producing heat and electricity from digester gas in an environmentally friendly way. The first 9,000 hours in operation were successfully concluded in August 2001. The fuel cell powered by digester gas was one of the 25 registered ''Worldwide projects'' which NRW presented at the EXPO 2000. In addition to this, it is a key project of the NRW State Initiative on Future Energies. All of the activities planned for the first year of operation wer… more
Date: March 1, 2002
Creator: Adolph, Dr.-Eng. Dirk & Saure, Dipl.-Eng. Thomas
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PARTICLE TRANSPORT AND DEPOSITION IN THE HOT-GAS FILTER AT WILSONVILLE

Description: Particle transport and deposition in the Wilsonville hot-gas filter vessel is studied. The filter vessel contains a total of 72 filters, which are arranged in two tiers. These are modeled by six upper and one lower cylindrical effective filters. An unstructured grid of 312,797 cells generated by GAMBIT is used in the simulations. The Reynolds stress model of FLUENT{trademark} (version 5.0) code is used for evaluating the gas mean velocities and root mean-square fluctuation velocities in the ves… more
Date: June 24, 1999
Creator: Ahmadi, Goodarz
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PRODUCTION OF NEW BIOMASS/WASTE-CONTAINING SOLID FUELS

Description: CQ Inc. and its team members (ALSTOM Power Inc., Bliss Industries, McFadden Machine Company, and industry advisors from coal-burning utilities, equipment manufacturers, and the pellet fuels industry) addressed the objectives of the Department of Energy and industry to produce economical, new solid fuels from coal, biomass, and waste materials that reduce emissions from coal-fired boilers. This project builds on the team's commercial experience in composite fuels for energy production. The elect… more
Date: April 20, 2001
Creator: Akers, David J.; Shirey, Glenn A.; Zitron, Zalman & Maney, Charles Q.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of Mixed Metal Sorbent/Catalysts for the Simultaneous Removal of Sulfur and Nitrogen Oxides

Description: Simultaneous removal of SO{sub 2} and NO{sub x} using a regenerable solid sorbent will constitute an important improvement over the use of separate processes for the removal of these two pollutants from stack gases and possibly eliminate several shortcomings of the individual SO{sub 2} and NO{sub x} removal operations. The work done at PETC and the DOE-funded investigation of the investigators on the sulfation and regeneration of alumina-supported cerium oxide sorbents have shown that they can … more
Date: August 1, 2001
Creator: Akyurtlu, Ates & Akyurtle, Jale F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PROOF OF PRINCIPAL TEST TO FEED AND METER GRANULAR COAL INTO 450 psig GAS PRESSURE

Description: The objective of this project is to demonstrate proof of principal to feed and meter granular coal into 450 psig gas pressure for use with pressurized fluidized bed combustors. This report summarizes work undertaken in the first quarter of 2000 in support of that objective. At the end of the last quarter the pump had been re-designed to incorporate a larger torque hub and provide a substantial increase in drive train strength to prevent recurrence of failures experienced during earlier testing.… more
Date: April 1, 2000
Creator: Aldred, Derek L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Influence of alloy content and a cerium surface treatment on the oxidation behavior of Fe-Cr ferritic stainless steels

Description: The cost of solid oxide fuel cells (SOFC) can be significantly reduced by using interconnects made from ferritic stainless steels. In fact, several alloys have been developed specifically for this application (Crofer 22APU and Hitachi ZMG323). However, these steels lack environmental stability in SOFC environments, and as a result, degrade the performance of the SOFC. A steel interconnect can contribute to performance degradation through: (i) Cr poisoning of electrochemically active sites withi… more
Date: January 1, 2006
Creator: Alman, D. E. & Jablonski, P. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The influence of Si content on the oxidation behavior of Type 430 stainless steels

Description: Trace “alloying” elements can significantly affect alloy performance. One example is the effect of residual Si content on the oxidation behavior of stainless steels. Small amounts of Si can form a continuous SiO2 layer at the metal-oxide scale interface. This is beneficial for enhancing oxidation resistance; however it is detrimental for fuel cell interconnect application, as SiO2 is an electrical insulator. In order to assess the effect of SiO2 on the performance of Type 430 ferritic steel, a … more
Date: September 1, 2007
Creator: Alman, D. E. & Jablonski, P. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Performance of Ce Surface Treated Ferritic Stainless Steels for Solid Oxide Fuel Cell Interconnects

Description: This research deals with the effect of a Ce surface treatment on the behavior of Fe-Cr-Mn ferritic stainless steels which may have application in SOFC technology. This treatment consisted of applying a slurry of CeO2 and a halide activator to the surface of coupons. After the slurry dried the coupons were heated to 900C in a controlled atmosphere furnace for 12 hours. The effectiveness of the treatment on commercial (Type 409 (12Cr), Type 430 (18Cr), Crofer 22APU (22Cr), Type 446(26Cr)) and exp… more
Date: September 1, 2007
Creator: Alman, D. E. & Jablonski, P. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Influence of a Cerium Surface Treatment on the Oxidation Behavior of Cr2O3-Forming Alloys (title on slides varies: Oxidation Behavior of Cerium Surface Treated Chromia Forming Alloys)

Description: Current goals of the U.S. Department of Energy’s Advanced Power Systems Initiatives include coal generation at 60% efficiency, which would require steam temperatures of up to 760°C. This temperature will require the construction of boiler and turbine components from austenitic stainless steels and nickel alloys. Many of the alloys being considered for use are primarily Cr2O3 forming alloys [1-4]. It is well known that the addition of a small amount of reactive elements, such as the rare earths … more
Date: April 1, 2007
Creator: Alman, D. E.; Holcomb, G. R.; Adler, T. A. & Jablonski, P. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of a Surface Treatment on the Performance of Stainless Steels for SOFC Interconnect Applications

Description: Pack cementation-like Cerium based surface treatments have been found to be effective in enhancing the oxidation resistance of ferritic steels (Crofer 22APU) for solid oxide fuel cell (SOFC) applications. The application of either a CeN- or CeO2 based surface treatment results in a decrease in weight gain by a factor of three after 4000 hours exposure to air+3%H2O at 800oC. Similar oxide scales formed on treated and untreated surfaces, with a continuous Cr-Mn outer oxide layer and a continuous … more
Date: April 1, 2007
Creator: Alman, D. E.; Holcomb, G. R.; Adler, T. A.; Wilson, R. W. & Jablonski, P. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Improved Austenitic Steels for Power Plant Applications

Description: Using alloy design principles, an austenitic alloy, with base composition of Fe-16Cr-16Ni-2Mn-1Mo (in weight percent, wt%), was formulated to which up to 5 wt% Si and/or Al were added specifically to improve the oxidation resistance. Cyclic oxidation tests were carried out in air at 700 and 800 C for 1000 hours. For comparison, Fe-18Cr-8Ni type-304 stainless steel alloys was also tested. The results showed that at 700 C, all the alloys were twice as oxidation resistant as the type-304 alloy (i.… more
Date: August 6, 2002
Creator: Alman, David E.; Dunning, John S.; Schrems, Karol K.; Rawers, James C.; Wilson, Rick D.; Hawk, Jeffrey A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ASSESSMENT OF THE PCFBC-EXPOSED AND ACCELERATED LIFE-TESTED CANDLE FILTERS

Description: Development of the hot gas filtration technology has been the focus of DOE/FETC and Siemens Westinghouse Power Corporation during the past twenty years. Systems development during this time has successfully lead to the generation and implementation of high temperature Siemens Westinghouse particulate filtration systems that are currently installed and are operational at Demonstration Plant sites, and which are ready for installation at commercial plant sites. Concurrently, materials development… more
Date: September 30, 1999
Creator: Alvin, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Materials and Component Development for Advanced Turbine Systems

Description: Hydrogen-fired and oxy-fueled land-based gas turbines currently target inlet operating temperatures of ∼1425-1760°C (∼2600-3200°F). In view of natural gas or syngas-fired engines, advancements in both materials, as well as aerothermal cooling configurations are anticipated prior to commercial operation. This paper reviews recent technical accomplishments resulting from NETL’s collaborative research efforts with the University of Pittsburgh and West Virginia University for future land-based gas … more
Date: July 1, 2008
Creator: Alvin, M. A.; Pettit, F.; Meier, G. H.; Yanar, M.; Helminiak, M.; Chyu, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Materials and Component Development for Advanced Turbine Systems

Description: In order to meet the 2010-2020 DOE Fossil Energy goals for Advanced Power Systems, future oxy-fuel and hydrogen-fired turbines will need to be operated at higher temperatures for extended periods of time, in environments that contain substantially higher moisture concentrations in comparison to current commercial natural gas-fired turbines. Development of modified or advanced material systems, combined with aerothermal concepts are currently being addressed in order to achieve successful operat… more
Date: October 1, 2008
Creator: Alvin, M. A.; Pettit, F.; Meier, G.; Yanar, N.; Chyu, M.; Mazzotta, D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DEVELOPMENT AND ASSESSMENT OF COATINGS FOR FUTURE POWER GENERATION TURBINES

Description: The NETL-Regional University Alliance (RUA) continues to advance technology development critical to turbine manufacturer efforts for achieving DOE Fossil Energy (FE's) Advanced Turbine Program Goals. In conjunction with NETL, Coatings for Industry (CFI), the University of Pittsburgh, NASA GRC, and Corrosion Control Inc., efforts have been focused on development of composite thermal barrier coating (TBC) architectures that consist of an extreme temperature coating, a commercially applied 7-8 YSZ… more
Date: January 1, 2012
Creator: Alvin, Maryanne; Klotz, K.; McMordie, B.; Gleeson, B.; Zhu, D.; Warnes, B. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department

Hydrogel Tracer Beads: The Development, Modification, and Testing of an Innovative Tracer for Better Understanding LNAPL Transport in Karst Aquifers

Description: The goal of this specific research task is to develop proxy tracers that mimic contaminant movement to better understand and predict contaminant fate and transport in karst aquifers. Hydrogel tracer beads are transported as a separate phase than water and can used as a proxy tracer to mimic the transport of non-aqueous phase liquids (NAPL). They can be constructed with different densities, sizes & chemical attributes. This poster describes the creation and optimization of the beads and the … more
Date: January 1, 2012
Creator: Amanda Laskoskie, Harry M. Edenborn, and Dorothy J. Vesper
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department
open access

CHARACTERIZATION OF CATALYTIC COMBUSTOR TURBULENCE AND ITS INFLUENCE ON VANE AND ENDWALL HEAT TRANSFER AND ENDWALL FILM COOLING

Description: Endwall heat transfer distributions taken in a large-scale low speed linear cascade facility are documented for mock catalytic and dry low NOx (DLN) combustion systems. Inlet turbulence levels range from about 1.0 percent for the mock Catalytic combustor condition to 14 percent for the mock dry low NOx combustor system. Stanton number contours are presented at both turbulence conditions for Reynolds numbers based on true chord length and exit conditions ranging from 500,000 to 2,000,000. Cataly… more
Date: October 1, 2002
Creator: Ames, Forrest E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

EARLY ENTRANCE COPRODUCTION PLANT

Description: As part of the Department of Energy's (DOE) Gasification Technologies and Transportation Fuels and Chemicals programs, DOE and Texaco are partners through Cooperative Agreement DE-FC26-99FT40658 to determine the feasibility of developing, constructing and operating an Early Entrance Coproduction Plant (EECP). The overall objective of the project is the three-phase development of an EECP that produces at least one product from at least two of the following three categories: Electric power (or he… more
Date: March 21, 2001
Creator: Anderson, John H.; Davis, William K. & Sloop, Thomas W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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