News & Media
Top Ten Blendstocks for Turbocharged Gasoline Engines
Bio-blendstocks with the potential to deliver the highest engine efficiency
More efficient engines enabled by better fuels could increase the fuel economy of light duty (LD) vehicles by 10 percent beyond current technology and planned developments. This report identifies top blendstocks that can be derived from biomass and are suitable for further development and commercialization. These blendstocks are best-suited for LD gasoline, boosted spark ignition (BSI) engines. The blendstocks were identified using a fuel property basis using the BSI merit function. The merit function determines potential improvements in engine efficiency, was used to evaluate the performance of candidate bioblendstocks in blends up to 30%. Those that exceeded the efficiency of an E10 premium were included in this list. This report is aimed at biofuel researchers looking to better understand the efficiency implications of biofuels under development, as well as engine researchers who are interested in future biofuels with properties that enable more efficient engine design and operation.
The Co-Optimization of Fuels & Engines (Co-Optima) team includes experts from nine national laboratories: Argonne, Idaho, Lawrence Berkeley, Lawrence Livermore, Los Alamos, Oak Ridge, Pacific Northwest, and Sandia National Laboratories and the National Renewable Energy Laboratory. The team’s expertise includes biofuel development, fuel property testing and characterization, combustion fundamentals, modeling and simulation from atomic scale to engine scale, and analysis.
Gaspar, Daniel J., West, Brian H., Ruddy, Danial, Wilke, Trenton J., Polikarpov, Evgueni, Alleman, Teresa L., George, Anthe, Monroe, Eric, Davis, Ryan W., Vardon, Derek, Sutton, Andrew D., Moore, Cameron M., Benavides, Pahola T., Dunn, Jennifer, Biddy, Mary J., Jones, Susanne B., Kass, Michael D., Pihl, Josh A., Pihl, Josh A., Debusk, Melanie M., Sjoberg, Magnus, Szybist, Jim, Sluder, C S., Fioroni, Gina, and Pitz, William J. Top Ten Blendstocks Derived From Biomass For Turbocharged Spark Ignition Engines: Bio-blendstocks With Potential for Highest Engine Efficiency. United States: N. p., 2019. Web. doi:10.2172/1567705.
Improving Ukraine’s Energy Security: the Role of Energy Efficiency
This report analyzes the link between energy security and energy efficiency in Ukraine. The paper explores the roots of high energy intensity of the Ukrainian economy and its dependence on imported energy resources. In recent years, the Government of Ukraine has linked energy security with energy efficiency, which indicates a paradigm shift in the country’s energy strategy. Using broad statistical data, the report explores the major options for Ukraine in improving its energy efficiency. Special attention is paid to energy consumption in the residential sector and district heating. The report analyzes recent economic, legislative, and institutional measures to promote energy efficiency and strengthen energy security. The analysis shows that Ukraine can significantly reduce its dependence on imported energy resources and avoid major energy security risks by creating an enabling environment for large-scale energy efficiency improvements in all sectors of the Ukrainian economy.
Kholod N., A. Denysenko, M. Evans, and V. Roshchanka. 2018. Improving Ukraine’s Energy Security: the Role of Energy Efficiency. PNNL-27447. Richland, WA: Pacific Northwest National Laboratory.