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Hybrid 240 Ton Off Highway Haul Truck: Quarterly Technical Status Report 19, DOE/AL68080-TSR19

Description: This nineteenth quarterly status report for the Hybrid Off Highway Vehicle (OHV) project, DOE Award DE-FC04-02AL68080 presents the project status at the end of June 2007, and covers activities in the nineteenth project quarter, April 2007 – June 2007.
Date: June 30, 2007
Creator: Richter, Tim
Partner: UNT Libraries Government Documents Department

Nanocomposite Magnets: Transformational Nanostructured Permanent Magnets

Description: Broad Funding Opportunity Announcement Project: GE is using nanomaterials technology to develop advanced magnets that contain fewer rare earth materials than their predecessors. Nanomaterials technology involves manipulating matter at the atomic or molecular scale, which can represent a stumbling block for magnets because it is difficult to create a finely grained magnet at that scale. GE is developing bulk magnets with finely tuned structures using iron-based mixtures that contain 80% less rare earth materials than traditional magnets, which will reduce their overall cost. These magnets will enable further commercialization of HEVs, EVs, and wind turbine generators while enhancing U.S. competitiveness in industries that heavily utilize these alternatives to rare earth minerals.
Date: October 1, 2010
Partner: UNT Libraries Government Documents Department

21st Century Locomotive Technology: Quarterly Technical Status Report 10 DOE/AL68284-TSR10

Description: Advanced fuel injection experimental results on a single cylinder engine operating at part load show the path to NOx vs SFC tradeoffs. Hybrid battery vibration tests have been performed. Analysis of advanced Battery Management System field validation results showed effective SOC estimation. A fuel optimizer simulation lab has been completed.
Date: February 14, 2006
Creator: Salasoo, Lembit; Topinka, Jennifer & Houpt, Paul
Partner: UNT Libraries Government Documents Department

21st Century Locomotive Technology: Quarterly Technical Status Report 11 DOE/AL68284-TSR11

Description: The fuel injection hardware on the single cylinder research engine was upgraded and performance trends were quantified. The effects of fuel injection rate shapes were studied. Long-term cycling of subscale battery cell assemblies has identified aging trends. Follow-up vibration testing of an instrumented COTS battery was performed. Optimal trip planning algorithms were implemented and demonstrated in the interactive, real-time simulation environment.
Date: February 14, 2006
Creator: Salasoo, Lembit; Topinka, Jennifer & Houpt, Paul
Partner: UNT Libraries Government Documents Department

21st Century Locomotive Technology: Quarterly Technical Status Report 12 DOE/AL68284-TSR12

Description: A unit pump system was installed on the single cylinder engine. The performance entitlement of the high-pressure common rail system at notch 4 and notch 8 was determined, and data was also compared with a production design multi-cylinder engine. Vibration testing of a hybrid-bus-design battery revealed extensive insulation wear. The vendor initiated design activities to address vibration. A cell-level test program was initiated to study battery current flow at room temperature and develop limits. The robustness and sub-optimal simplified implementation of fuel optimization algorithms was studied.
Date: April 14, 2006
Creator: Salasoo, Lembit; Topinka, Jennifer & Houpt, Paul
Partner: UNT Libraries Government Documents Department

21st Century Locomotive Technology: Quarterly Technical Status Report 13 DOE/AL68284-TSR13

Description: Upgrades and calibrations were performed on the single cylinder engine. Production of a baseline engine performance dataset has started using GE Evolution engine hardware, including the production unit pump fuel system. Long-term tests of battery cells energized at room temperature were performed. Hybrid energy storage capabilities were added to the fuel optimizer.
Date: May 9, 2006
Creator: Salasoo, Lembit & Topinka, Jennifer
Partner: UNT Libraries Government Documents Department

21st Century Locomotive Technology: Quarterly Technical Status Report 15 DOE/AL68284-TSR15

Description: High pressure common rail (HPCR) fuel injection performance testing developed a notch-by-notch performance comparison between HPCR and the production fuel system. A multiple injection screening study at notch 8 was completed with the baseline HPCR fuel injector nozzle tip design. Began a study on performance effects of different nozzle tip geometries. The hybrid locomotive battery vendor performed component fabrication tests and began manufacture of a mockup battery to validate the vibration design performance.
Date: November 3, 2006
Creator: Salasoo, Lembit & Topinka, Jennifer
Partner: UNT Libraries Government Documents Department

Advanced Electric Submersible Pump Design Tool for Geothermal Applications

Description: Electrical Submersible Pumps (ESPs) present higher efficiency, larger production rate, and can be operated in deeper wells than the other geothermal artificial lifting systems. Enhanced Geothermal Systems (EGS) applications recommend lifting 300 C geothermal water at 80kg/s flow rate in a maximum 10-5/8-inch diameter wellbore to improve the cost-effectiveness. In this paper, an advanced ESP design tool comprising a 1D theoretical model and a 3D CFD analysis has been developed to design ESPs for geothermal applications. Design of Experiments was also performed to optimize the geometry and performance. The designed mixed-flow type centrifugal impeller and diffuser exhibit high efficiency and head rise under simulated EGS conditions. The design tool has been validated by comparing the prediction to experimental data of an existing ESP product.
Date: May 31, 2012
Creator: Qi, Xuele; Turnquist, Norman & Ghasripoor, Farshad
Partner: UNT Libraries Government Documents Department

Advanced Combustion Systems for Next Generation Gas Turbines

Description: Next generation turbine power plants will require high efficiency gas turbines with higher pressure ratios and turbine inlet temperatures than currently available. These increases in gas turbine cycle conditions will tend to increase NOx emissions. As the desire for higher efficiency drives pressure ratios and turbine inlet temperatures ever higher, gas turbines equipped with both lean premixed combustors and selective catalytic reduction after treatment eventually will be unable to meet the new emission goals of sub-3 ppm NOx. New gas turbine combustors are needed with lower emissions than the current state-of-the-art lean premixed combustors. In this program an advanced combustion system for the next generation of gas turbines is being developed with the goal of reducing combustor NOx emissions by 50% below the state-of-the-art. Dry Low NOx (DLN) technology is the current leader in NOx emission technology, guaranteeing 9 ppm NOx emissions for heavy duty F class gas turbines. This development program is directed at exploring advanced concepts which hold promise for meeting the low emissions targets. The trapped vortex combustor is an advanced concept in combustor design. It has been studied widely for aircraft engine applications because it has demonstrated the ability to maintain a stable flame over a wide range of fuel flow rates. Additionally, it has shown significantly lower NOx emission than a typical aircraft engine combustor and with low CO at the same time. The rapid CO burnout and low NOx production of this combustor made it a strong candidate for investigation. Incremental improvements to the DLN technology have not brought the dramatic improvements that are targeted in this program. A revolutionary combustor design is being explored because it captures many of the critical features needed to significantly reduce emissions. Experimental measurements of the combustor performance at atmospheric conditions were completed in the first phase of ...
Date: January 1, 2006
Creator: Haynes, Joel; Janssen, Jonathan; Russell, Craig & Huffman, Marcus
Partner: UNT Libraries Government Documents Department

Catalytic Unmixed Combustion of Coal with Zero Pollution

Description: GE Global Research is developing an innovative energy-based technology for coal combustion with high efficiency and near-zero pollution. This Unmixed Combustion of coal (UMC-Coal) technology simultaneously converts coal, steam and air into two separate streams of high pressure CO{sub 2}-rich gas for sequestration, and high-temperature, high-pressure vitiated air for producing electricity in gas turbine expanders. The UMC process utilizes an oxygen transfer material (OTM) and eliminates the need for an air separation unit (ASU) and a CO{sub 2} separation unit as compared to conventional gasification based processes. This is the final report for the two-year DOE-funded program (DE-FC26-03NT41842) on this technology that ended in September 30, 2005. The UMC technology development program encompassed lab- and pilot-scale studies to demonstrate the UMC concept. The chemical feasibility of the individual UMC steps was established via lab-scale testing. A pilot plant, designed in a related DOE funded program (DE-FC26-00FT40974), was reconstructed and operated to demonstrate the chemistry of UMC process in a pilot-scale system. The risks associated with this promising technology including cost, lifetime and durability OTM and the impact of contaminants on turbine performance are currently being addressed in detail in a related ongoing DOE funded program (DE-FC26-00FT40974, Phase II). Results obtained to date suggest that this technology has the potential to economically meet future efficiency and environmental performance goals.
Date: December 1, 2005
Creator: Rizeq, George; Kulkarni, Parag; Subia, Raul & Wei, Wei
Partner: UNT Libraries Government Documents Department

Integrated Biomass Gasification with Catalytic Partial Oxidation for Selective Tar Conversion

Description: Biomass gasification is a flexible and efficient way of utilizing widely available domestic renewable resources. Syngas from biomass has the potential for biofuels production, which will enhance energy security and environmental benefits. Additionally, with the successful development of low Btu fuel engines (e.g. GE Jenbacher engines), syngas from biomass can be efficiently used for power/heat co-generation. However, biomass gasification has not been widely commercialized because of a number of technical/economic issues related to gasifier design and syngas cleanup. Biomass gasification, due to its scale limitation, cannot afford to use pure oxygen as the gasification agent that used in coal gasification. Because, it uses air instead of oxygen, the biomass gasification temperature is much lower than well-understood coal gasification. The low temperature leads to a lot of tar formation and the tar can gum up the downstream equipment. Thus, the biomass gasification tar removal is a critical technology challenge for all types of biomass gasifiers. This USDA/DOE funded program (award number: DE-FG36-O8GO18085) aims to develop an advanced catalytic tar conversion system that can economically and efficiently convert tar into useful light gases (such as syngas) for downstream fuel synthesis or power generation. This program has been executed by GE Global Research in Irvine, CA, in collaboration with Professor Lanny Schmidt's group at the University of Minnesota (UoMn). Biomass gasification produces a raw syngas stream containing H2, CO, CO2, H2O, CH4 and other hydrocarbons, tars, char, and ash. Tars are defined as organic compounds that are condensable at room temperature and are assumed to be largely aromatic. Downstream units in biomass gasification such as gas engine, turbine or fuel synthesis reactors require stringent control in syngas quality, especially tar content to avoid plugging (gum) of downstream equipment. Tar- and ash-free syngas streams are a critical requirement for commercial deployment of biomass-based power/heat ...
Date: May 28, 2011
Creator: Zhang, Lingzhi; Wei, Wei; Manke, Jeff; Vazquez, Arturo; Thompson, Jeff & Thompson, Mark
Partner: UNT Libraries Government Documents Department

21st Century Locomotive Technology: Quarterly Technical Status Report 28

Description: Thermal testing of a subscale locomotive sodium battery module was initiated.to validate thermal models. The hybrid trip optimizer problem was formulated. As outcomes of this project, GE has proceeded to commercialize trip optimizer technology, and has initiated work on a state-of-the-art battery manufacturing plant for high energy density, sodium-based batteries.
Date: February 19, 2010
Creator: Salasoo, Lembit & Chandra, Ramu
Partner: UNT Libraries Government Documents Department