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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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This presentation provides an overview of the Alternative Fuels Data Center for the 2026 Transportation Technologies Annual Merit Review, including project objectives, milestone, approach to developing and maintaining the website, project accomplishments and progress, and collaboration with other national labs and external partners.
DOE-TTO Annual Merit Review presentation on the Technical Assistance task, covering FY25-26. Includes an overview of what technical assistance is and highlights three key projects: (1) FLeet CNG Infrastructure Clean Cities TA request, (2) 3D Mobile App for Emergency Responders (for EVs) Pilot Project, and (3) Smart Playbook for Fleets AFDC content development.
At the DOE Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting, NREL presented progress and accomplishments for the 'Turboexpander: Alternative Fueling Concept for Fuel Cell Electric Vehicle Fast Fill' project. This project was awarded through DOE's H2@Scale CRADA Call to investigate the performance of a turboexpander device. A turboexpander is capable of cooling pressurized hydrogen gas as it drops in pressure from the station supply. NREL has designed and is building a proof of concept device using a drag turbine. Test results will be published and will be used in future projects.
Hydrogen is developing as a key energy interface that can benefit the electricity grid, provide energy storage, and be used in a number of key applications that have limited alternatives to today's fossil-energy sources. In 2015, the global hydrogen market was 60 MMT/yr (8 EJ/yr). The Hydrogen Council estimated that it could grow ten-fold to 600 MMT/yr (80 EJ/yr) if industrial, transportation, buildings, and electrical applications grow [1]. Hydrogen is used extensively in oil refining for hydrocracking and hydrodesulfurization. It is also the key intermediate while producing ammonia which is used primarily as a fertilizer. Additional industrial market opportunities include steel production where hydrogen could replace metallurgical coal as a reductant (for example, in the direct iron reduction process) and as a feedstock with carbon dioxide to produce methanol, Fischer-Tropsch liquids, and other organic chemicals. In transportation, hydrogen can be used in applications powered by fuel cells. Currently, material handling equipment is the primary market; however, heavy- and medium-duty trucks and light duty vehicles are other direct options. In addition, a hydrogen carrier such as ammonia is a key transportation opportunity. Because it is a non-carbon form of energy storage, hydrogen can play a key role in heating buildings, either directly or through combined heat and power generation, and in providing seasonal storage for the electricity grid. Research and development (R&D) that reduce costs will likely be necessary for hydrogen to economically participate in steelmaking and organic chemical markets. Likewise, lower-cost fuel cells will likely be needed for hydrogen to compete in many transportation, heat, and power markets. Hydrogen is primarily produced from natural gas or other organic feedstocks (e.g., oil refinery byproducts) today. R&D that can reduce the capital cost of both low-temperature and high-temperature electrolysis is possible. If the capital costs for low temperature electrolysis can be reduced while keeping its ability to respond to varying power input, it could be a flexible load on the grid. As such, it could utilize power that would otherwise be curtailed and thus increase the market opportunity for variable renewable generation such as wind and photovoltaic solar [2]. Because it is at an elevated temperature, high temperature electrolysis has a higher efficiency. In many sites where both heat and electricity are available (e.g., nuclear power plants) it can be the most cost effective option for producing hydrogen and supporting energy generation facilities that are challenged when competing to produce electricity alone. [1] The Hydrogen Council. Hydrogen Scaling Up. November 2017. [2] Ruth M., Jadun P., Elgowainy A. H2@Scale Analysis. U.S. Department of Energy Hydrogen and Fuel Cells Program 2019 Annual Merit Review and Peer Evaluation Meeting. April 30, 2019.
Poster presentation describes FY 2019 accomplishments and progress from NREL's H2@Scale CRADA project with GTA at the DOE Hydrogen and Fuel Cells Program 2019 Annual Merit Review and Peer Evaluation Meeting.
Overview of the fiscal year 2019 low-temperature electrolysis research activities and accomplishments within the HydroGEN Advanced Water Splitting Materials consortium, part of the U.S. Department of Energy's Energy Materials Network. Presented at the DOE Hydrogen and Fuel Cells Program 2019 Annual Merit Review and Peer Evaluation Meeting.
Slide deck for Annual Merit Review event. Describes and presents the entire DirectXFC project, Overview, Relevance, Milestones, Approach, Technical Accomplishments, Future Research, Summary, and Collaborators.
This presentation summarizes the objectives, approach, and findings of a 3-year project led by INL as part of DOE's SMART Mobility Laboratory Consortium. The presentation will be given to the general public via Zoom during the FY20 Vehicle Technologies Office Annual Merit Review on June 3, 2020.
This is the presentation profile for 2020 DOE Vechicle Technologies Office Annual Merit Review. It introduces the research results in the project "Charging and Repositioning Decision Making for Fully Automated Ride-Hailing Fleet". These results come from the work of developing a framework for integrated dispatching and charging management of an autonomous electric vehicle ride-hailing fleet, and a case study in New York City was conducted to investigate the benefits of systematic optimization approach comparing to a heuristic approach.
This presentation, part of the 2020 Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting, discusses the development of a multiport, >1 MW charging system for medium- and heavy-duty electric vehicles.
Annual Merit review of the Smart Electric Vehicle Charging for a Reliable and Resilient Grid (RECHARGE) project. This project will demonstrate the value of smart charge management to reduce the impact of Electric Vehicles at Scale. Assess management of Plug-in Electric Vehicle (PEV) charging at scale to avoid negative grid impacts, identify critical strategies and technologies, and enhance value for PEV / EVSE / grid stakeholders.
Thermal management enables more efficient and cost-effective motors. This Annual Merit Review presentation describes the technical accomplishments and progress in electric motor thermal management R&D over the last year. This project supports a broad industry demand for data, analysis methods, and experimental techniques to improve and better understand motor thermal management.
The presentation was developed for the U.S. Department of Energy (DOE) Vehicle Technologies Program 2020 Annual Merit Review and Peer Evaluation Meeting. It reports on progress and accomplishments of DOE funded Integrated Traction Drive Thermal Management project. Highlighted are NREL's research accomplishments during FY 2020. Challenges associated with thermal management of integrated traction drives for electric vehicles arise due to the limited packaging space, coolant distribution, electrical connections, and ambient temperatures. For this project at NREL, research focuses on enabling thermal management technologies to support a modular, compact, self-contained integrated electric drive unit with motor and power electronics. Integration approaches, based on packaging location and coolant options for power electronics integrated with candidate motor technologies to reduce cables and connectors, are reviewed and compared using finite element analysis (FEA) tools. Automatic transmission fluid (ATF) jet impingement cooling characterization is carried out experimentally (measuring heat transfer coefficients) and using computational fluid dynamics (CFD) modeling.
This is a presentation summarizing our work on ATHENA for the Annual Merit Review (AMR) with the Vehicles Technology Office (VTO).
The United States Department of Energy (DOE) has identified extreme fast charging (XFC) as a critical challenge that must be overcome in order to achieve widespread adoption of electric vehicles. DOE’s eXtreme Fast Charge and Cell Evaluation (XCEL) program seeks to reduce charge time to 10-15 minutes for a 200+ Wh/kg Li-ion battery. This presentation for DOE’s Vehicle Technologies Program Annual Merit Review summarizes the XCEL team’s work developing electrochemical models to interpret data and applying them to identify best strategies to achieve fast charge. Strategies include advanced electrode architectures, elevated temperature charging, novel charge protocols, advanced electrolytes, thermal management and suppression of heterogeneities that cause early onset of the damaging Li plating side reaction.
This poster summarizes work performed under crosscutting efforts during FY19 under the DOE’s Battery ReCell Center for the Annual Merit Review conducted by the Vehicle Technologies Office.
This presentation summarizes the initial work on low-temperature electolyzer system modeling and technoeconomic analysis for the annual merit review.
Thermal management enables more efficient and cost-effective motors. This Annual Merit Review presentation describes the technical accomplishments and progress in electric motor thermal management R&D over the last year. This project supports a broad industry demand for data, analysis methods, and experimental techniques to improve and better understand motor thermal management.