Resource Type
Country
43 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
43
next
Power System Modeling of 20% Wind-Generated Electricity by 2030
This presentation describes the methods used to analyze the potential for provided 20% of our nation's electricity demand with wind energy by 2030
Date:
July 1, 2008
Creator:
Hand, M.; Blair, N.; Bolinger, M.; Wiser, R.; O'Connell, R.; Hern, T. et al.
System:
The UNT Digital Library
Poster Presentation FCP6 Cost and Performance Enhancements for a PEM Fuel Cell Turbocompressor
None
Date:
July 1, 2008
Creator:
Gee, Mark K.
System:
The UNT Digital Library
Thermal Evaluation of a High-Voltage Ultracapacitor Module for Vehicle Applications
The objectives of this paper are: (1) identify thermal issues of ultracapacitor cells and modules over a range of vehicle duty cycles to understand and minimize thermal impacts; and (2) identify improvements for ultracapacitor thermal management.
Date:
July 15, 2008
Creator:
Lustbader, J.; King, C.; Gonder, J.; Keyser, M. & Pesaran, A.
System:
The UNT Digital Library
Impact of Lithium Availability on Vehicle Electrification
This presentation discusses the relationship between electric drive vehicles and the availability of lithium.
Date:
July 1, 2011
Creator:
Neubauer, J.
System:
The UNT Digital Library
Performance and Reliability of Interface Materials for Automotive Power Electronics
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.
System:
The UNT Digital Library
Role of Smarter Grids in Variable Renewable Resource Integration
This presentation discusses the role of smarter grids in variable renewable resource integration and references material from a forthcoming ISGAN issue paper: Smart Grid Contributions to Variable Renewable Resource Integration, co-written by the presenter and currently in review.
Date:
July 1, 2012
Creator:
Miller, M.
System:
The UNT Digital Library
Novel Scanning Lens Instrument for Evaluating Fresnel Lens Performance: Equipment Development and Initial Results
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. Measurements performed on SoG and PMMA lenses subject to a variety of indoor conditions (e.g., UV and damp heat) identified differences in the optical efficiency of the evaluated lenses, demonstrating the ability of the Scanning Lens Instrument (SLI) to distinguish between the aged lenses.
Date:
July 1, 2013
Creator:
Herrero, R.; Miller, D. C.; Kurtz, S. R.; Anton, I. & Sala, G.
System:
The UNT Digital Library
In-Use Performance Results of Medium Duty Electric Vehicles
This presentation describes a DOE program to monitor and report on vehicle performance and energy utilization of medium-duty and heavy-duty electric vehicles.
Date:
July 1, 2012
Creator:
Walkowicz, K.
System:
The UNT Digital Library
Thermal Performance and Reliability of Bonded Interfaces for Power Electronics Packaging Applications
This presentation discusses the thermal performance and reliability of bonded interfaces for power electronics packaging applications.
Date:
July 1, 2013
Creator:
Devoto, D.
System:
The UNT Digital Library
Light-Weight, Single-Phase, Liquid-Cooled Cold Plate
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.
System:
The UNT Digital Library
Allocating Reserve Requirements
This presentation provides an overview of present and possible future ways to allocate and assign benefits for reserve requirements.
Date:
July 1, 2011
Creator:
Milligan, M.; Kirby, B. & King, J.
System:
The UNT Digital Library
LCA of Parabolic Trough CSP: Materials Inventory and Embodied GHG Emissions from Two-Tank Indirect and Thermocline Thermal Storage
In the United States, concentrating solar power (CSP) is one of the most promising renewable energy (RE) technologies for reduction of electric sector greenhouse gas (GHG) emissions and for rapid capacity expansion. It is also one of the most price-competitive RE technologies, thanks in large measure to decades of field experience and consistent improvements in design. One of the key design features that makes CSP more attractive than many other RE technologies, like solar photovoltaics and wind, is the potential for including relatively low-cost and efficient thermal energy storage (TES), which can smooth the daily fluctuation of electricity production and extend its duration into the evening peak hours or longer. Because operational environmental burdens are typically small for RE technologies, life cycle assessment (LCA) is recognized as the most appropriate analytical approach for determining their environmental impacts of these technologies, including CSP. An LCA accounts for impacts from all stages in the development, operation, and decommissioning of a CSP plant, including such upstream stages as the extraction of raw materials used in system components, manufacturing of those components, and construction of the plant. The National Renewable Energy Laboratory (NREL) is undertaking an LCA of modern CSP plants, starting with those …
Date:
July 20, 2009
Creator:
Heath, Garvin; Burkhardt, John; Turchi, Craig; Decker, Terese & Kutscher, Chuck
System:
The UNT Digital Library
Legislating Biofuels in the United States
Legislation supporting U.S. biofuels production can help to reduce petroleum consumption and increase the nation's energy security.
Date:
July 1, 2008
Creator:
Clark, W.
System:
The UNT Digital Library
Light-Weight, Low-Cost, Single-Phase, Liquid-Cooled Cold Plate
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.
System:
The UNT Digital Library
Wind Turbine Drivetrain Condition Monitoring - An Overview
High operation and maintenance costs still hamper the development of the wind industry despite its quick growth worldwide. To reduce unscheduled downtime and avoid catastrophic failures of wind turbines and their components have been and will be crucial to further raise the competitiveness of wind power. Condition monitoring is one of the key tools for achieving such a goal. To enhance the research and development of advanced condition monitoring techniques dedicated to wind turbines, we present an overview of wind turbine condition monitoring, discuss current practices, point out existing challenges, and suggest possible solutions.
Date:
July 1, 2013
Creator:
Sheng, S. & Yang, W.
System:
The UNT Digital Library
Report on Wind Turbine Subsystem Reliability - A Survey of Various Databases
Wind industry has been challenged by premature subsystem/component failures. Various reliability data collection efforts have demonstrated their values in supporting wind turbine reliability and availability research & development and industrial activities. However, most information on these data collection efforts are scattered and not in a centralized place. With the objective of getting updated reliability statistics of wind turbines and/or subsystems so as to benefit future wind reliability and availability activities, this report is put together based on a survey of various reliability databases that are accessible directly or indirectly by NREL. For each database, whenever feasible, a brief description summarizing database population, life span, and data collected is given along with its features & status. Then selective results deemed beneficial to the industry and generated based on the database are highlighted. This report concludes with several observations obtained throughout the survey and several reliability data collection opportunities in the future.
Date:
July 1, 2013
Creator:
Sheng, S.
System:
The UNT Digital Library
Tools, Information, and Assistance: Resources for States
This presentation covers resources available through the Clean Cities Program. Resources include a Web site, numerous publications, an alternative fuel data base, and other information products and assistance.
Date:
July 16, 2007
Creator:
Brennan, A. H.
System:
The UNT Digital Library
Natural Gas as a Transportation Fuel: Benefits, Challenges, and Implementation
Presentation for the Clean Cities Website highlighting the benefits, challenges, and implementation considerations when utilizing natural gas as a transportation fuel.
Date:
July 1, 2007
Creator:
unknown
System:
The UNT Digital Library
Sorption Characteristics of Radionuclides on Clays in Yucca Mountain Alluvium
None
Date:
July 18, 2006
Creator:
Ding, M.; Reimus, P. W.; Lukens, W.; Chipera, S. & Scism, C.
System:
The UNT Digital Library
Battery Choices for Different Plug-in HEV Configurations
Presents battery choices for different plug-in hybrid electric vehicle (HEV) configurations to reduce cost and to improve performance and life.
Date:
July 12, 2006
Creator:
Pesaran, A.
System:
The UNT Digital Library
Green Energy: Advancing Bio-Hydrogen
Developing a model of metabolism linked to H2 production in green algae. Develop tools for parameter discovery and optimization at organism level and advance knowledge of hydrogen-producting photosynthetic organisms.
Date:
July 1, 2007
Creator:
Alber, D.
System:
The UNT Digital Library
Women and the Americans with Disabilities Act
This webinar discusses the wage gap of working women with disabilities and those without disabilities. It also raises awareness of disability and abuse, and suggests practices to help prevent abuse and help businesses improve their practice.
Date:
July 28, 2015
Creator:
Jenkins-Pultz, Kelly; Sheehy, Jennifer & Langston, Rachael
System:
The UNT Digital Library
Distributed Hydrogen Technologies for Commercial Buildings and Vehicle Refueling (Presentation)
None
Date:
July 1, 2009
Creator:
Jalalzadeh-Azar, A. A.
System:
The UNT Digital Library
Business Case for CNG in Municipal Fleets
Presentation about compressed natural gas in municipal fleets, assessing investment profitability, the VICE model, base-case scenarios, and pressing questions for fleet owners.
Date:
July 27, 2010
Creator:
Johnson, C.
System:
The UNT Digital Library