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Multiobjective Optimization Power Generation Systems Involving Chemical Looping Combustion

Description: Integrated Gasification Combined Cycle (IGCC) system using coal gasification is an important approach for future energy options. This work focuses on understading the system operation and optimizing it in the presence of uncertain operating conditions using ASPEN Plus and CAPE-OPEN compliant stochastic simulation and multiobjective optimization capabilities developed by Vishwamitra Research Institute. The feasible operating surface for the IGCC system is generated and deterministic multiobjecti… more
Date: January 1, 2009
Creator: Salazar, Juan M.; Diwekar, Urmila M. & Zitney, Stephen E.
Partner: UNT Libraries Government Documents Department
open access

Overview of Westinghouse`s Advanced Turbine Systems Program

Description: The proposed approach is to build on Westinghouse`s successful 501 series of gas turbines. The 501F offered a combined cycle efficiency of 54%; 501G increased this efficiency to 58%; the proposed single-shaft 400 MW class ATS combined cycle will have a plant cycle efficiency greater than 60%. Westinghous`s strategy is to build upon the next evolution of advances in combustion, aerodynamics, cooling, leakage control, materials, and mechanical design. Westinhouse will base its future gas turbine … more
Date: December 31, 1995
Creator: Bannister, R. L.; Bevc, F. P.; Diakunchak, I. S. & Huber, D. J.
Partner: UNT Libraries Government Documents Department
open access

Technical review of Westinghouse`s Advanced Turbine Systems Program

Description: US DOE`s ATS program has the goals of increased efficiency of natural gas-fired power generation plants, decreased cost of electricity, and a decrease in harmful emissions. The Westinghouse ATS plant is based on an advanced gas turbine design combined with an advanced steam turbine and a high efficiency generator. Objectives of the ATS Program Phase 2 are to select the ATS cycle and to develop technologies required to achieve ATS Program goals: combustion, cooling, aerodynamics, leakage control… more
Date: December 31, 1995
Creator: Diakunchak, I. S. & Bannister, R. L.
Partner: UNT Libraries Government Documents Department
open access

UTILITY ADVANCED TURBINE SYSTEMS (ATS) TECHNOLOGY READINESS TESTING

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 conflation testing. Processes will be de… more
Date: April 1, 1999
Partner: UNT Libraries Government Documents Department
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Life cycle assessment of a biomass gasification combined-cycle power system

Description: The potential environmental benefits from biomass power are numerous. However, biomass power may also have some negative effects on the environment. Although the environmental benefits and drawbacks of biomass power have been debated for some time, the total significance has not been assessed. This study serves to answer some of the questions most often raised in regard to biomass power: What are the net CO{sub 2} emissions? What is the energy balance of the integrated system? Which substances … more
Date: December 1, 1997
Creator: Mann, M. K. & Spath, P. L.
Partner: UNT Libraries Government Documents Department
open access

High performance steam development

Description: DOE has launched a program to make a step change in power plant to 1500 F steam, since the highest possible performance gains can be achieved in a 1500 F steam system when using a topping turbine in a back pressure steam turbine for cogeneration. A 500-hour proof-of-concept steam generator test module was designed, fabricated, and successfully tested. It has four once-through steam generator circuits. The complete HPSS (high performance steam system) was tested above 1500 F and 1500 psig for ov… more
Date: December 31, 1995
Creator: Duffy, T. & Schneider, P.
Partner: UNT Libraries Government Documents Department
open access

Utility advanced turbine systems (ATS) technology readiness testing

Description: The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the US Department of Energy (DOE) is the development of a highly efficient, environmentally superior, and cost-competitive utility ATS for base-load utility-scale power generation, the GE 7H (60 Hz) combined cycle power system, and related 9H (50 Hz) common technology. The major effort will be expended on detail design. Validation of critical components and technologies will be performed, inc… more
Date: September 15, 2000
Partner: UNT Libraries Government Documents Department
open access

ECONOMIC EVALUATION OF CO2 STORAGE AND SINK ENHANCEMENT OPTIONS

Description: This project developed life-cycle costs for the major technologies and practices under development for CO{sub 2} storage and sink enhancement. The technologies evaluated included options for storing captured CO{sub 2} in active oil reservoirs, depleted oil and gas reservoirs, deep aquifers, coal beds, and oceans, as well as the enhancement of carbon sequestration in forests and croplands. The capture costs for a nominal 500 MW{sub e} integrated gasification combined cycle plant from an earlier … more
Date: February 1, 2003
Creator: Bock, Bert; Rhudy, Richard; Herzog, Howard; Klett, Michael; Davison, John; Ugarte, Danial G. De La Torre et al.
Partner: UNT Libraries Government Documents Department
open access

HyPEP FY-07 Report: System Integration Model Development

Description: The integrated system of a Very High Temperature Gas-Cooled Reactor (VHTR) and a High Temperature Steam Electrolysis (HTSE) process is one of systems being investigated by the U.S. Department of Energy and Idaho National Laboratory. This system will produce hydrogen by utilizing a highly efficient VHTR with an outlet temperature of 900 °C and supplying necessary energy and electricity to the HTSE process for electrolysis of high temperature steam. This report includes a description of five conf… more
Date: April 1, 2007
Creator: Oh, C. H.; Kim, E. S.; Sherman, S. R. & Vilim, R.
Partner: UNT Libraries Government Documents Department
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Power System Modeling of 20percent Wind-Generated Electricity by 2030

Description: The Wind Energy Deployment System model was used to estimate the costs and benefits associated with producing 20% of the nation's electricity from wind technology by 2030. This generation capacity expansion model selects from electricity generation technologies that include pulverized coal plants, combined cycle natural gas plants, combustion turbine natural gas plants, nuclear plants, and wind technology to meet projected demand in future years. Technology cost and performance projections, as … more
Date: June 9, 2008
Creator: Bolinger, Mark A.; Hand, Maureen; Blair, Nate; Wiser, Ryan; Hern, Tracy; Miller, Bart et al.
Partner: UNT Libraries Government Documents Department
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Development of advanced hot-gas desulfurization processes

Description: Advanced integrated gasification combined cycle (IGCC) power plants nearing completion, such as Sierra-Pacific, employ a circulating fluidized-bed (transport) reactor hot-gas desulfurization (HGD) process that uses 70-180 {micro}m average particle size (aps) zinc-based mixed-metal oxide sorbent for removing H{sub 2}S from coal gas down to less than 20 ppmv. The sorbent undergoes cycles of absorption (sulfidation) and air regeneration. The key barrier issues associated with a fluidized-bed HGD p… more
Date: April 17, 2000
Creator: Jothimurugesan, K.
Partner: UNT Libraries Government Documents Department
open access

Engineering Evaluation of Hot-Gas Desulfurization With Sulfur Recovery

Description: Engineering evaluations and economic comparisons of two hot-gas desulfurization (HGD) processes with elemental sulfur recovery, being developed by Research Triangle Institute, are presented. In the first process, known as the Direct Sulfur Recovery Process (DSRP), the SO{sub 2} tail gas from air regeneration of zinc-based HGD sorbent is catalytically reduced to elemental sulfur with high selectivity using a small slipstream of coal gas. DSRP is a highly efficient first-generation process, promi… more
Date: May 31, 1998
Creator: Roberts, G. W.; Portzer, J. W.; Kozup, S. C. & Gangwal S. K.
Partner: UNT Libraries Government Documents Department
open access

Baseline and optional bench-scale testing of a chemical candle filter safeguard device

Description: This project was undertaken by the Energy and Environmental Research Center (EERC) to design, construct, and test the feasibility of a hot-gas filter safeguard device (SGD) to prevent the release of dust in the event of candle filter failure under both pressurized fluidized-bed combustion (PFBC) (oxidizing) and integrated gasification combined cycle (IGCC) (reducing) operating conditions. The SGD must use existing filter system seals, gaskets, fixtures, and assemblies as much as possible. It mu… more
Date: November 1, 2000
Creator: Hurley, John P. & Swanson, Michael L.
Partner: UNT Libraries Government Documents Department
open access

Development of advanced hot-gas desulfurization processes

Description: Advanced integrated gasification combined cycle (IGCC) power plants nearing completion, such as Sierra-Pacific, employ a circulating fluidized-bed (transport) reactor hot-gas desulfurization (HGD) process that uses 70-180 {micro}m average particle size (aps) zinc-based mixed-metal oxide sorbent for removing H{sub 2}S from coal gas down to less than 20 ppmv. The sorbent undergoes cycles of absorption (sulfidation) and air regeneration. The key barrier issues associated with a fluidized-bed HGD p… more
Date: April 26, 1999
Creator: Jothimurugesan, K.
Partner: UNT Libraries Government Documents Department
open access

UTILITY ADVANCED TURBINE SYSTEMS (ATS) TECHNOLOGY READINESS TESTING

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 a highly efficient, environmentally superior, and cost-competitive utility ATS for base-load utility-scale power generation, the GE 7H (60 Hz) combined cycle power system, and related 9H (50 Hz) common technology. The major effort will be expended on detail design. Validation of critical components and technologies will be performed, i… more
Date: October 1, 1999
Partner: UNT Libraries Government Documents Department
open access

Refractory for Black Liquor Gasifiers

Description: The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LFHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-tempera… more
Date: March 31, 2003
Creator: Moore, Robert E.; Headrick, William L. & Rezaie, Alireza
Partner: UNT Libraries Government Documents Department
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General Electric ATS Program technical review Phase 2 activities

Description: The Advanced Turbine Systems (ATS) Program Phase 2 objectives are to select a cycle, and to identify and resolve technical issues required to realize the ATS Program goals of 60% net combined cycle efficiency, single digit NOx, and a 10% electric power cost reduction, compared to current technology. The Phase 2 efforts have showns that the ATS Program goals are achievable. The GE Power Generation advanced gas turbine will use closed-loop steam cooling in the first two turbine stages and advance… more
Date: December 31, 1995
Creator: Chance, T. & Smith, D.
Partner: UNT Libraries Government Documents Department
open access

Development of mixed-conducting ceramic membrane for hydrogen separation.

Description: The Office of Fossil Energy of the US Department of Energy is formulating ''Vision 21,'' a program aimed at developing technologies for highly efficient power and coproduction plants that discharge almost no pollutants and close the carbon cycle. An integrated gasification combined cycle (IGCC) system is a likely modular component of a Vision 21 coproduction plant. IGCC technology is ideally suited for the coproduction of electricity and high-quality transportation fuel and/or a host of high-va… more
Date: August 20, 1999
Creator: Balachandran, U.; Dorris, S. E. & Lee, T. H.
Partner: UNT Libraries Government Documents Department
open access

UTILITY ADVANCED TURBINE SYSTEMS (ATS) TECHNOLOGY READINESS TESTING PHASE 3 RESTRUCTURED (3R)

Description: Much of the ''H'' technology design is based on proven, established technologies. The major technologies of the combined cycle powertrain, including the bearing designs, the evaluation methods for rotor dynamics, the compressor and turbine blading designs, and the generator field construction methods are all either direct applications of proven design technology or evolutionary refinement of existing designs. It is for these reasons that GE expects that the reliability of the new ''H'' Class ge… more
Date: September 1, 2000
Partner: UNT Libraries Government Documents Department
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Novel Concepts for the Compression of Large Volumes of Carbon Dioxide

Description: In the effort to reduce the release of CO{sub 2} greenhouse gases to the atmosphere, sequestration of CO{sub 2} from Integrated Gasification Combined Cycle (IGCC) and Oxy-Fuel power plants is being pursued. This approach, however, requires significant compression power to boost the pressure to typical pipeline levels. The penalty can be as high as 8% to 12% on a typical IGCC plant. The goal of this research is to reduce this penalty through novel compression concepts and integration with existi… more
Date: September 30, 2007
Creator: Moore, J. Jeffrey; Nored, Marybeth G.; Gernentz, Ryan S. & Brun, Klaus
Partner: UNT Libraries Government Documents Department
open access

Stability Regimes of Turbulent Nitrogen-Diluted Hydrogen Jet Flames

Description: One option for combustion in zero-emission Integrated Gasification Combined Cycle (IGCC) power plants is non-premixed combustion of nitrogen-diluted hydrogen in air. An important aspect to non-premixed combustion is flame stability or anchoring, though only a few fundamental stability studies of these flames have taken place to date. The following paper presents the results of experiments investigating the effects of nitrogen diluent fraction, jet diameter, and exit velocity on the static stabi… more
Date: March 1, 2007
Creator: Weiland, N. T. & Strakey, P. A.
Partner: UNT Libraries Government Documents Department
open access

Commercial-Scale Demonstration of the Liquid Phase Methanol (Lpmeoh) Process

Description: This project, which was sponsored by the U.S. Department of Energy (DOE) under the Clean Coal Technology Program to demonstrate the production of methanol from coal-derived synthesis gas (syngas), has completed the 69-month operating phase of the program. The purpose of this Final Report for the ''Commercial-Scale Demonstration of the Liquid Phase Methanol (LPMEOH{trademark}) Process'' is to provide the public with details on the performance and economics of the technology. The LPMEOH{trademark… more
Date: June 1, 2003
Creator: Heydorn, E. C.; Diamond, B. W. & Lilly, R. D.
Partner: UNT Libraries Government Documents Department
open access

EXPERIMENTAL AND THEORETICAL INVESTIGATIONS OF NEW POWER CYCLES AND ADVANCED FALLING FILM HEAT EXCHANGERS

Description: The final report for the DOE/UNM grant number DE-FG26-98FT40148 discusses the accomplishments of both the theoretical analysis of advanced power cycles and experimental investigation of advanced falling film heat exchangers. This final report also includes the progress report for the third year (period of October 1, 2000 to September 30, 2001). Four new cycles were studied and two cycles were analyzed in detail based on the second law of thermodynamics. The first cycle uses a triple combined cy… more
Date: December 1, 2001
Creator: Razani, Arsalan & Kim, Kwang J.
Partner: UNT Libraries Government Documents Department
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