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Providing solutions to energy and environmental problems. Quarterly report, January 1--March 31, 1997

Description: Summaries are presented for the following tasks: Development and demonstration of a practical electric downhole steam generator for thermal recovery of heavy oil and tar; Wetting behavior of selected crude oil/brine/rock systems; Coal gasification, power generation and product market study; Impact of leachate from Clean Coal Technology waste on the stability of clay liners; Investigation of coprocessing heavy oil, automobile shredder residue, and coal; Injection into coal seams for simultaneous… more
Date: September 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High Temperature Electrochemical Polishing of H{sub 2}S from Coal Gasification Process Streams. Quarterly Progress Report, April 1, 1996--June 30, 1996

Description: Coal may be used to generate electrical energy by any of several processes, most of which involve combustion or gasification. Combustion in a coal-fired boiler and power generation using a steam-cycle is the conventional conversion method; however total energy conversion efficiencies for this type of process are only slightly over 30%. Integration of a gas-cycle in the process (combined cycle) may increase the total conversion efficiency to 40%. Conversion processes based on gasification offer … more
Date: December 31, 1997
Creator: Winnick, Jack
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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1972-1997, Twenty-five years of energy and environmental history : lessons learned.

Description: Given the events of the past 25 years concerning energy and environmental issues and our reaction to them, what lessons can we learn? First, the individual American consumer wants and expects energy to be a stable commodity with low prices and easy availability. As evidenced by the heated debate over increasing the federal gasoline tax by $.05 per gallon (which would still leave Americans paying only one-third of what Europeans pay for gasoline), increases in energy prices elicit very strong pu… more
Date: December 17, 1997
Creator: Drucker, H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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TIDD PFBC Demonstration Project. Second quarterly report, 1994

Description: Major activities during this period include: (1) The unit operated for 1529 hours on coal, bringing the grand total for coal fire through the end of the quarter to 7847 hours. (2) During the quarter, the Tidd Plant set a new record for its longest continuous run on coal; 1079 hours, surpassing its previous record of 740 hours set in June-July of 1992. (3) The unit availability for the first half of 1994 was 54.7%. (4) There were four gas turbine starts, eight bed preheater starts, and six opera… more
Date: July 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Task 8.6 -- Advanced man machine interface (MMI)

Description: The Solar/DOE ATS engine program seeks to improve the utilization of turbomachinery resources through the development of an Advanced Man Machine Interface (MMI). The program goals include timely and succinct feedback to the operations personnel to enhance their decision making process. As part of the Solar ATS Phase 2 technology development program, enabling technologies, including graphics environments, communications technology, and operating systems were explored to determine their viability… more
Date: December 31, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sonic-enhanced ash agglomeration and sulfur capture. Technical progress report, April--June 1997

Description: A major concern with the utilization of coal in directly fired gas turbines is the control of particulate emissions and reduction of sulfur dioxide, and alkali vapor from combustion of coal, upstream of the gas turbine. The results of this research and development indicate that both acoustic agglomeration of particulates and direct injection of sorbents have the potential to become a significant emissions control strategy. The Sonic Enhanced Ash Agglomeration and Sulfur Capture program focuses … more
Date: December 31, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Task 6.6 - Sialon Coatings for Alkali-Resistant Silicon Nitride: Semi-annual report, July 1-December 31, 1996

Description: The efficiency of a gas turbine can be improved by increasing operating temperature. Construction materials should meet both high strength requirements and hot-alkali corrosion resistance. Structural ceramics based on silicon nitride are promising candidates for high temperature engineering applications because of their high strength and good resistance to corrosion. Their performance varies significantly with the mechanical properties of boundary phases which, in turn, depend on their chemical… more
Date: 1997
Creator: Nowok, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ceramic vane demonstration in an industrial turbine

Description: A DOE program with Allison Engine Co. will demonstrate ceramic vanes in an industrial turbine. First-stage ceramic vanes and metallic mounts are to be designed, fabricated, and operated in a short-term engine test (up to 50 hr). The vanes and mounts will then be retrofitted into an existing turbine for operation at a commercial site for up to 8000 hr. They have been designed. Thermal and stress analyses of the vanes have calculated acceptable fast fracture stress levels and probabilities of sur… more
Date: April 1, 1997
Creator: Wenglarz, R.A.; Calcuttawala, S.M. & Pope, J.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Subtask 6.6 - SiAION Coatings for Alkali-Resistant Silicon Nitride. Topical report

Description: The efficiency of a gas turbine can be improved by increasing operating temperature. Construction materials should both meet high strength requirements and exhibit hot alkali corrosion resistance. Structural ceramics based on silicon nitride are promising candidates for high temperature engineering applications because of their high strength and good resistance to corrosion. Their performance varies significantly with the mechanical properties of boundary phases which, in turn, depend on their … more
Date: February 25, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advanced Turbine Systems (ATS) program conceptual design and product development. Quarterly report, December 1, 1993--February 28, 1994

Description: GE has achieved a leadership position in the worldwide gas turbine industry in both industrial/utility markets and in aircraft engines. This design and manufacturing base plus our close contact with the users provides the technology for creation of the next generation advanced power generation systems for both the industrial and utility industries. GE has been active in the definition of advanced turbine systems for several years. These systems will leverage the technology from the latest devel… more
Date: June 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Selection of an industrial natural-gas-fired advanced turbine system - Task 3A

Description: TASK OBJECTIVES: Identify a gas-fueled turbine and steam system which will meet the program goals for efficiency - and emissions. TECHNICAL GOALS AND REQUIREMENTS: Goals for the Advanced Turbine System Program (ATS) where outlined in the statement of work for five basic categories: Cycle Efficiency - System heat rate to have a 15% improvement over 1991 vintage systems being offered to the market. Environmental No post-combustion devices while meeting the following parameter targets: (1) Nitrous… more
Date: May 1, 1997
Creator: Holloway, G.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advanced ceramics for land-based gas turbine applications. Final report

Description: In order to increase the efficiency of land-based gas turbines, inlet gas temperatures have to be increased, and the amount of air which cools the turbine vanes has to be reduced, to the maximum extent possible. Presently, thermal barrier coatings (TBC`s) are the state of the art in achieving these goals. However, since TBC`s are very thin (typically 100 {mu}m), they have clearly limitations. Since all-ceramic turbine vanes would be a very large and risky development step, Westinghouse is consi… more
Date: May 23, 1997
Creator: Schneibel, J.H.; Ludeman, E. & Sabol, S.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Power Systems Development Facility. First quarterly report, 1997

Description: The objective of this project, herein referred to as the Power Systems Development Facility (PSDF), is to evaluate hot gas particle control technologies using coal derived gas streams. This project entails the design, construction, installation, and use of a flexible test facility which can operate under realistic gasification and combustion conditions. The major particulate control device (PCD) issues to be addressed include the integration of the PCDs into coal utilization systems, on-line cl… more
Date: July 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Topping PCFB combustion plant with supercritical steam pressure

Description: Research is being conducted to develop a new type of coal fired plant for electric power generation. This new type of plant, called a second generation or topping pressurized circulating fluidized bed combustion (topping PCFB) plant, offers the promise of efficiencies greater than 46 percent (HHV), with both emissions and a cost of electricity that are significantly lower than conventional pulverized coal fired plants with scrubbers. The topping PCFB plant incorporates the partial gasification … more
Date: November 1, 1997
Creator: Robertson, A. & White, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Utility advanced turbine systems (ATS) technology readiness testing -- Phase 3. Technical progress report, October 1--December 31, 1997

Description: The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and US Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be develop… more
Date: December 31, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Utility Advanced Turbine Systems (ATS) technology readiness testing and pre-commercialization demonstration. Quarterly report, October 1--December 31, 1996

Description: The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the U.S. Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be d… more
Date: June 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Utility Advanced Turbine System (ATS) technology readiness testing and pre-commercial demonstration phase 3. Quarterly progress report, October 1--December 31, 1995

Description: The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the U.S. Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detailed design. Validation of critical components and technologies will be performed including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be… more
Date: May 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of ambient conditions and fuel composition on combustion stability

Description: Recent regulations on NO, emissions are promoting the use of lean premix (LPM) combustion for industrial gas turbines. LPM combustors avoid locally stoichiometric combustion by premixing fuel and the air upstream of the reaction region, thereby eliminating the high temperatures that produce thermal NO.. Unfortunately, this style of combustor is prone to combustion oscillation. Significant pressure fluctuations can occur when variations in heat release periodically couple pressure to acoustic mo… more
Date: April 1, 1997
Creator: Janus, M. C.; Richards, G. A.; Yip, M. J. & Robey, E. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ATS materials/manufacturing

Description: The Materials/Manufacturing Technology subelement is a part of the base technology portion of the Advanced Turbine Systems (ATS) Program. The work in this subelement is being performed predominantly by industry with assistance from national laboratories and universities. The projects in this subelement are aimed toward hastening the incorporation of new materials and components in gas turbines. Work is currently ongoing on thermal barrier coatings (TBCs), the scale-up of single crystal airfoil … more
Date: November 1, 1997
Creator: Karnitz, M. A.; Wright, I. G. & Ferber, M. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Reducing the Manufacturing Cost of Tubular SOFC Technology

Description: In recent years, Westinghouse Electric Corporation has made great strides in advancing tubular solid oxide fuel cell (SOFC) technology towards commercialization by the year 2001. In 1993, Westinghouse initiated a program to develop a `MWe Class` (1-3 MWe) pressurized SOFC (PSOFC) gas turbine (GT) combined cycle power system for distributed power applications because of its: (1) ultra high efficiency (approx. 63% net AC/LHV CH{sub 4}), (2) its compatibility with a factory packaged, minimum site … more
Date: December 31, 1997
Creator: George, R.A. & Bessette, N.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Mechanical properties of aluminized CoCrAlY coatings in advanced gas turbine blades

Description: The microstructure/composition and mechanical properties (22-950 C) in aluminized CoCrAlY coatings of advanced gas turbine blades have been examined using scanning Auger microprobe and a small punch (SP) testing method. Aluminized coatings were made of layered structure divided into four regimes: (1) Al enriched and Cr depleted region, (2) Al and Cr graded region, (3) fine grained microstructure with a mixture of Al and Cr enriched phases and (4) Ni/Co interdiffusion zone adjacent to the interf… more
Date: July 1, 1997
Creator: Kameda, J.; Bloomer, T.E.; Sugita, Y.; Ito, A. & Sakurai, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sonic-enhanced ash agglomeration and sulfur capture. Technical progress report, October--December 1997

Description: A major concern with the utilization of coal in directly fired gas turbines is the control of particulate emissions and reduction of sulfur dioxide, and alkali vapor from combustion of coal, upstream of the gas turbine. The results of this research and development indicate that both acoustic agglomeration of particulates and direct injection of sorbents have the potential to become a significant emissions control strategy. The Sonic Enhanced Ash Agglomeration and Sulfur Capture program focuses … more
Date: December 31, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pressurized solid oxide fuel cell/gas turbine combined cycle systems

Description: Over the last 10 years, Westinghouse Electric Corporation has made great strides in advancing tubular solid oxide fuel cell (SOFC) technology towards commercialization by the year 2001. In 1993, Westinghouse initiated a program to develop pressurized solid oxide fuel cell/gas turbine (PSOFC/GT) combined cycle power systems because of the ultra-high electrical efficiencies, 60-75% (net AC/LHV CH4), inherent with these systems. This paper will discuss SOFC technology advancements in recent years,… more
Date: December 31, 1997
Creator: George, R.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Task 8.8 -- Low cost ceramic materials

Description: This subtask was originally titled ``Reheat Combustor Materials`` and was proposed in anticipation of the addition of a reheat combustor to the ICR gas turbine cycle. When the emphasis of ATS became the optimized recuperated cycle, the goal of the subtask was changed to the evaluation of low cost materials for gas turbine combustor liners. It now supplements similar work being conducted by Solar under DOE Contract No.DE-ACO2-92-CE40960, titled ``Ceramic Stationary Gas Turbine (CSGT) Development… more
Date: June 30, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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