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Performance and Reliability of Interface Materials for Automotive Power Electronics

Description: Thermal management and reliability are important because excessive temperature can degrade the performance, life, and reliability of power electronics and electric motors. Advanced thermal management technologies enable keeping temperature within limits; higher power densities; and lower cost materials, configurations and systems. Thermal interface materials, bonded interface materials and the reliability of bonded interfaces are discussed in this presentation.
Date: July 1, 2013
Creator: Narumanchi, S.; DeVoto, D.; Mihalic, M. & Paret, P.
Partner: UNT Libraries Government Documents Department

Novel Scanning Lens Instrument for Evaluating Fresnel Lens Performance: Equipment Development and Initial Results

Description: A system dedicated to the optical transmittance characterization of Fresnel lenses has been developed at NREL, in collaboration with the UPM. The system quantifies the optical efficiency of the lens by generating a performance map. The shape of the focused spot may also be analyzed to understand change in the lens performance. The primary instrument components (lasers and CCD detector) have been characterized to confirm their capability for performing optical transmittance measurements. Measure… more
Date: July 1, 2013
Creator: Herrero, R.; Miller, D. C.; Kurtz, S. R.; Anton, I. & Sala, G.
Partner: UNT Libraries Government Documents Department

Adding Complex Terrain and Stable Atmospheric Condition Capability to the Simulator for On/Offshore Wind Farm Applications (SOWFA)

Description: This presentation describes changes made to NREL's OpenFOAM-based wind plant aerodynamics solver so that it can compute the stably stratified atmospheric boundary layer and flow over terrain. Background about the flow solver, the Simulator for Off/Onshore Wind Farm Applications (SOWFA) is given, followed by details of the stable stratification/complex terrain modifications to SOWFA, along with some preliminary results calculations of a stable atmospheric boundary layer and flow over a simple se… more
Date: June 1, 2013
Creator: Churchfield, M. J.
Partner: UNT Libraries Government Documents Department

NREL Fuel Cell and Hydrogen Technologies Program Overview

Description: The presentation, 'NREL Fuel Cell and Hydrogen Technologies Program Overview,' was presented at the Fuel Cell and Hydrogen Energy Expo and Policy Forum, April 24, 2013, Washington, D.C.
Date: May 1, 2013
Creator: Gearhart, C.
Partner: UNT Libraries Government Documents Department

Techno-Economic Analysis of BEV Service Providers Offering Battery Swapping Services

Description: Battery electric vehicles (BEVs) could significantly reduce the nation's gasoline consumption and greenhouse gas emissions rates. However, both the upfront cost and the limited range of the vehicle are perceived to be deterrents to the widespread adoption of BEVs. A service provider approach to marketing BEVs, coupled with a battery swapping infrastructure deployment could address both issues and accelerate BEV adoption. This presentation examines customer selection, service usage statistics, s… more
Date: May 1, 2013
Creator: Neubauer, J. & Pesaran, A.
Partner: UNT Libraries Government Documents Department

Modeling Nucleon Generalized Parton Distributions

Description: We discuss building models for nucleon generalized parton distributions (GPDs) H and E that are based on the formalism of double distributions (DDs). We find that the usual "DD+D-term'' construction should be amended by an extra term, generated by GPD E(x,\xi). Unlike the $D$-term, this function has support in the whole -1 < x< 1 region, and in general does not vanish at the border points|x|=\xi.
Date: May 1, 2013
Creator: Radyushkin, Anatoly V.
Partner: UNT Libraries Government Documents Department

Partnering with Industry to Shape the Future

Description: Keynote presentation given at the 2013 NTEA Green Truck Summit titled Partnering with Industry to Shape the Future.
Date: February 1, 2013
Creator: Pacheco, M. A.
Partner: UNT Libraries Government Documents Department

Transportation Energy Futures: Project Overview and Findings

Description: The U.S. Department of Energy-sponsored Transportation Energy Futures (TEF) project examines how combining multiple strategies could reduce both GHG emissions and petroleum use by 80%. The project's primary objective was to help inform domestic decisions about transportation energy strategies, priorities, and investments, with an emphasis on previously underexplored opportunities related to energy efficiency and renewable energy in light-duty vehicles, non-light-duty vehicles, fuels, and transp… more
Date: March 1, 2013
Partner: UNT Libraries Government Documents Department

Impact of ALD Coating on Mn-rich Cathode Materials

Description: LG Chem Power Inc. (LGCPI) and NREL have collaborated to demonstrate the scalability of the atomic layer deposition (ALD) coating process over the last 6 months, and the benefits of ALD coatings for long-term cycling and calendar life are being quantified. The objectives of this work are two-fold: 1) to evaluate the scalability of the process to coat LGCPI cathodes with alumina using the ALD technique, and 2) to demonstrate improvements in rate capability and life of ALD-coated LGCPI electrodes… more
Date: June 1, 2013
Creator: Santhanagopalan, S.
Partner: UNT Libraries Government Documents Department

Built Environment Energy Analysis Tool Overview

Description: This presentation provides an overview of the Built Environment Energy Analysis Tool, which is designed to assess impacts of future land use/built environment patterns on transportation-related energy use and greenhouse gas (GHG) emissions. The tool can be used to evaluate a range of population distribution and urban design scenarios for 2030 and 2050. This tool was produced as part of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiat… more
Date: April 1, 2013
Creator: Porter, C.
Partner: UNT Libraries Government Documents Department

Results of First Outdoor Comparison Between Absolute Cavity Pyrgeometer (ACP) and Infrared Integrating Sphere (IRIS) Radiometer at PMOD

Description: The ACP and IRIS are developed to establish a world reference for calibrating pyrgeometers with traceability to SI units. The two radiometers are unwindowed with negligible spectral dependence, and traceable to SI units through the temperature scale (ITS-90). The first outdoor comparison between the two designs was held from January 28 to February 8, 2013 at the Physikalisch-Metorologisches Observatorium Davos (PMOD). The difference between the irradiance measured by ACP and that of IRIS was wi… more
Date: March 1, 2013
Creator: Reda, I.; Grobner, J.; Wacker, S. & Stoffel, T.
Partner: UNT Libraries Government Documents Department

Western Wind and Solar Integration Study: Phase 2 [Presentation]

Description: This presentation summarizes the scope and results of the Western Wind and Solar Integration Study Phase 2, which examined operational impacts of high penetrations of variable renewable generation in the West.
Date: September 1, 2013
Creator: Lew, D.; Brinkman, G.; Ibanez, E.; Lefton, S.; Kumar, N.; Venkataraman, S. et al.
Partner: UNT Libraries Government Documents Department

Alternative Fuels Market and Policy Trends

Description: Market forces and policies are increasing opportunities for alternative fuels. There is no one-size-fits-all, catch-all, silver-bullet fuel. States play a critical role in the alternative fuel market and are taking a leading role.
Date: September 1, 2013
Creator: Schroeder, A. N.
Partner: UNT Libraries Government Documents Department

Experimental Study of Single Spin Asymmetries and TMDs

Description: This presentation covers: Recent SSA Results from JLab Hall A with a Transversely Polarized 3He (n); New Preliminary SSA Results from JLab Hall A with a Transversely polarized 3He (n); TMD study at JLab 12 GeV in Hall A; and Long-term Future plans for TMDs study with Electron-Ion Colliders (EIC).
Date: May 2013
Creator: Chen, Jian-Ping
Partner: UNT Libraries Government Documents Department

Progress of the Computer-Aided Engineering of Electric Drive Vehicle Batteries (CAEBAT)

Description: This presentation, Progress of Computer-Aided Engineering of Electric Drive Vehicle Batteries (CAEBAT) is about simulation and computer-aided engineering (CAE) tools that are widely used to speed up the research and development cycle and reduce the number of build-and-break steps, particularly in the automotive industry. Realizing this, DOE?s Vehicle Technologies Program initiated the CAEBAT project in April 2010 to develop a suite of software tools for designing batteries.
Date: June 1, 2013
Creator: Pesaran, A. A.; Han, T.; Hartridge, S.; Shaffer, C.; Kim, G. H. & Pannala, S.
Partner: UNT Libraries Government Documents Department

Light-Weight, Single-Phase, Liquid-Cooled Cold Plate

Description: This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.
Date: July 1, 2013
Creator: Narumanchi, S.
Partner: UNT Libraries Government Documents Department

Group 3: Humidity, Temperature and Voltage

Description: This is a summary of the work of Group 3 of the International PV QA Task Force. Group 3 is chartered to develop accelerated stress tests that can be used as comparative predictors of module lifetime versus stresses associated with humidity, temperature and voltage.
Date: September 1, 2013
Creator: Wohlgemuth, J.
Partner: UNT Libraries Government Documents Department

Light-Weight, Low-Cost, Single-Phase, Liquid-Cooled Cold Plate

Description: This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.
Date: July 1, 2013
Creator: Narumanchi, S.
Partner: UNT Libraries Government Documents Department
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