National Library of Energy BETA

Sample records for biodiesel b20 transit

  1. RTD Biodiesel (B20) Transit Bus Evaluation: Interim Review Summary

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    RTD Biodiesel (B20) Transit Bus Evaluation: Interim Review Summary K. Proc, R. Barnitt, and R.L. McCormick Technical Report NREL/TP-540-38364 August 2005 RTD Biodiesel (B20) Transit Bus Evaluation: Interim Review Summary K. Proc, R. Barnitt, and R.L. McCormick Prepared under Task No. FC05.9400 Technical Report NREL/TP-540-38364 August 2005 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy

  2. 100,000-Mile Evaluation of Transit Buses Operated on Biodiesel Blends (B20)

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    | Department of Energy 00,000-Mile Evaluation of Transit Buses Operated on Biodiesel Blends (B20) 100,000-Mile Evaluation of Transit Buses Operated on Biodiesel Blends (B20) Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. 2006_deer_barnitt.pdf (575.91 KB) More Documents & Publications Recent Research to Address Technical Barriers to Increased Use of Biodiesel Impact

  3. RTD Biodiesel (B20) Transit Bus Evaluation: Interim Review Summary

    SciTech Connect (OSTI)

    Proc, K.; Barnitt, R.; McCormick, R. L.

    2005-08-01

    A summary of the data NREL collected from a project to evaluate the in-use performance of buses from the Regional Transportation District of Denver operating on B20.

  4. St. Louis Metro Biodiesel (B20) Transit Bus Evaluation: 12-Month Final Report

    SciTech Connect (OSTI)

    Barnitt, R.; McCormick, R. L.; Lammert, M.

    2008-07-01

    The St. Louis Metro Bodiesel Transit Bus Evaluation project is being conducted under a Cooperative Research and Development Agreement between NREL and the National Biodiesel Board to evaluate the extended in-use performance of buses operating on B20 fuel. The objective of this research project is to compare B20 and ultra-low sulfur diesel buses in terms of fuel economy, veicles maintenance, engine performance, component wear, and lube oil performance.

  5. Emissions Effects of Using B20 in the Current Transit Bus Fleet...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Emissions Effects of Using B20 in the Current Transit Bus Fleet Transit buses using diesel and biodiesel blends were tested for fuel consumption and emissions on the UDDS, OCTA, ...

  6. 100,000-Mile Evaluation of Transit Buses Operated on Biodiesel...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evaluation of Transit Buses Operated on Biodiesel Blends (B20) 100,000-Mile Evaluation of Transit Buses Operated on Biodiesel Blends (B20) Presentation given at DEER 2006, ...

  7. Effect of B20 and Low Aromatic Diesel on Transit Bus NOx Emissions Over Driving Cycles with a Range of Kinetic Intensity

    SciTech Connect (OSTI)

    Lammert, M. P.; McCormick, R. L.; Sindler, P.; Williams, A.

    2012-10-01

    Oxides of nitrogen (NOx) emissions for transit buses for up to five different fuels and three standard transit duty cycles were compared to establish whether there is a real-world biodiesel NOx increase for transit bus duty cycles and engine calibrations. Six buses representing the majority of the current national transit fleet and including hybrid and selective catalyst reduction systems were tested on a heavy-duty chassis dynamometer with certification diesel, certification B20 blend, low aromatic (California Air Resources Board) diesel, low aromatic B20 blend, and B100 fuels over the Manhattan, Orange County and UDDS test cycles. Engine emissions certification level had the dominant effect on NOx; kinetic intensity was the secondary driving factor. The biodiesel effect on NOx emissions was not statistically significant for most buses and duty cycles for blends with certification diesel, except for a 2008 model year bus. CARB fuel had many more instances of a statistically significant effect of reducing NOx. SCR systems proved effective at reducing NOx to near the detection limit on all duty cycles and fuels, including B100. While offering a fuel economy benefit, a hybrid system significantly increased NOx emissions over a same year bus with a conventional drivetrain and the same engine.

  8. St. Louis Metro Biodiesel (B20) Transit Bus Evaluation: 12-Month...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Energy Laboratory PM preventative maintenance RC road call TBN total base number ULSD ... vehicle maintenance, engine performance, component wear, and lube oil performance. ...

  9. Quality Assessment of Biodiesel and Biodiesel Blends | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Quality Assessment of Biodiesel and Biodiesel Blends Quality Assessment of Biodiesel and Biodiesel Blends The results of a quality survey of B20 fuel in the United States were ...

  10. 2008 B20 Survey Results (Presentation)

    SciTech Connect (OSTI)

    Alleman, T. L.; McCormick, R. L.

    2009-02-02

    Describes results of a sample survey of the quality of B20, a biodiesel blend, collected from U.S. public pumps and fleets as part of a joint effort by NREL, the NBB, and engine manufacturers.

  11. Alternative Fuels Data Center: Installing B20 Equipment

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Fuels & Vehicles » Biodiesel Printable Version Share this resource Send a link to Alternative Fuels Data Center: Installing B20 Equipment to someone by E-mail Share Alternative Fuels Data Center: Installing B20 Equipment on Facebook Tweet about Alternative Fuels Data Center: Installing B20 Equipment on Twitter Bookmark Alternative Fuels Data Center: Installing B20 Equipment on Google Bookmark Alternative Fuels Data Center: Installing B20 Equipment on Delicious Rank Alternative Fuels Data

  12. Survey of the Quality and Stability of Biodiesel and Biodiesel Blends in the United States in 2004

    SciTech Connect (OSTI)

    McCormick, R. L.; Alleman, T. L.; Ratcliffe, M.; Moens, L.; Lawrence, R.

    2005-10-01

    Reports results gathered in 2004 from quality and stability surveys in the United States of biodiesel (B100) and 20% biodiesel (B20) in petroleum diesel.

  13. Biodiesel Basics

    SciTech Connect (OSTI)

    2014-07-01

    This fact sheet provides a brief introduction to biodiesel, including a discussion of biodiesel blends and specifications. It also covers how biodiesel compares to diesel fuel in terms of performance (including in cold weather) and whether there are adverse effects on engines or other systems. Finally, it discusses biodiesel fuel quality and standards, and compares biodiesel emissions to those of diesel fuel.

  14. Biodiesel Blends

    SciTech Connect (OSTI)

    Not Available

    2005-04-01

    A 2-page fact sheet discussing general biodiesel blends and the improvement in engine performance and emissions.

  15. Biodiesel Basics (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-06-01

    This fact sheet provides a brief introduction to biodiesel, including a discussion of biodiesel blends, which blends are best for which vehicles, where to buy biodiesel, how biodiesel compares to diesel fuel in terms of performance, how biodiesel performs in cold weather, whether biodiesel use will plug vehicle filters, how long-term biodiesel use may affect engines, biodiesel fuel standards, and whether biodiesel burns cleaner than diesel fuel. The fact sheet also dismisses the use of vegetable oil as a motor fuel.

  16. Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search TODO: Add description List of Biodiesel Incentives Retrieved from "http:en.openei.orgwindex.php?titleBiodiesel&oldid267146" Feedback...

  17. Monthly Biodiesel Production Report

    U.S. Energy Information Administration (EIA) Indexed Site

    U.S. Biodiesel production capacity and production million gallons Period Annual Production ... B100 is the industry designation for pure biodiesel; a biodiesel blend contains both pure ...

  18. Maryland Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: Maryland Biodiesel Place: Berlin, Maryland Product: Maryland Biodiesel operates the 3.7m liter biodiesel plant in Berlin, Maryland....

  19. CLV Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    CLV Biodiesel Jump to: navigation, search Name: CLV Biodiesel Place: Colider, Mato Grosso, Brazil Product: Biodiesel producer References: CLV Biodiesel1 This article is a stub....

  20. Better Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: Better Biodiesel Place: Orem, Utah Zip: 84057 Product: Biodiesel producer References: Better Biodiesel1 This article is a stub. You...

  1. Upstate Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: Upstate Biodiesel Place: New York Product: Biodiesel producer. References: Upstate Biodiesel1 This article is a stub. You can help...

  2. Crescent Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: Crescent Biodiesel Place: Brazil Product: Brazilian biodiesel producer. References: Crescent Biodiesel1 This article is a stub. You...

  3. AZ Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    AZ Biodiesel Jump to: navigation, search Name: AZ Biodiesel Place: Chandler, Arizona Zip: 85225 Product: AZ Biodiesel is a biodiesel producer that announced plans in July 2008 to...

  4. Impact of Biodiesel on the Near-term Performance and Long-term...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Impact of Biodiesel on the Near-term Performance and Long-term Durability of Advanced Aftertreatment Systems Compare SCR catalyst performance with ULSD and Soy B20 through engine ...

  5. ULSD and B20 Hydrocarbon Impacts on EGR Cooler Performance and Degradation

    SciTech Connect (OSTI)

    Sluder, Scott; Storey, John Morse; Youngquist, Adam D

    2009-01-01

    Exhaust gas recirculation (EGR) cooler fouling has emerged as an important issue in diesel engine development. Uncertainty about the level of impact that fuel chemistry may have upon this issue has resulted in a need to investigate the cooler fouling process with emerging non-traditional fuel sources to gage their impact on the process. This study reports experiments using both ultra-low sulfur diesel (ULSD) and 20% biodiesel (B20) at elevated exhaust hydrocarbon conditions to investigate the EGR cooler fouling process. The results show that there is little difference between the degradation in cooler effectiveness for ULSD and B20 at identical conditions. At lower coolant temperatures, B20 exhibits elevated organic fractions in the deposits compared with ULSD, but this does not appear to lead to incremental performance degradation under the conditions studied. Comparisons with a previous study conducted at low HC levels shows that the presence of increased volatiles in the deposit does not impact the degradation in effectiveness significantly. Moreover, the effectiveness loss divided by the deposit mass gain for both low- and high-HC conditions seems to indicate that the HC fraction in the deposit does not significantly alter the overall thermal properties of the deposit layer.

  6. Analysis of Biodiesel Blends Samples Collected in the United States in 2008 (Revised)

    SciTech Connect (OSTI)

    Alleman, T. L.; Fouts, L.; McCormick, R. L.

    2010-12-01

    NREL sampled and tested the quality of U.S. B20 (20% biodiesel, 80% petroleum diesel) in 2008; 32 samples from retail locations and fleets were tested against a proposed ASTM D7467 B6-B20 specification, now in effect.

  7. Creating Biodiesel & Mitigating Waste

    K-12 Energy Lesson Plans and Activities Web site (EERE)

    Safety practices for handling the materials involved in producing biodiesel fuel cannot be overemphasized, especially if students attempt to synthesize biodiesel outside of class.

  8. Monthly Biodiesel Production Report

    U.S. Energy Information Administration (EIA) Indexed Site

    Biodiesel (B100) production by Petroleum Administration for Defense District (PADD) ... Source: U.S. Energy Information Administration, Form EIA-22M "Monthly Biodiesel Production ...

  9. Biodiesel Progress: ASTM Specifications and 2nd Generation Biodiesel...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Progress: ASTM Specifications and 2nd Generation Biodiesel Biodiesel Progress: ASTM Specifications and 2nd Generation Biodiesel Presentation given at the 2007 Diesel ...

  10. ABS Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: ABS Biodiesel Place: United Kingdom Product: UK-based biodiesel producer developing a plant in Avonmouth, near Bristol. References: ABS...

  11. Soyminas Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Soyminas Biodiesel Jump to: navigation, search Name: Soyminas Biodiesel Place: DIST. INDUSTRIAL, Brazil Zip: 37980-000 Product: Brazilian biodiesel producer located in Minas...

  12. Home Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Home Biodiesel Jump to: navigation, search Name: Home Biodiesel Place: Marysville, California Zip: 95901 Product: Manufacturer of small scale biodiesel equipment. Coordinates:...

  13. Brasil Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: Brasil Biodiesel Place: Piaui, Brazil Product: Brazilian holding which develops biodiesel projects. Coordinates: -6.83956,...

  14. Taua Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Taua Biodiesel Jump to: navigation, search Name: Taua Biodiesel Place: Brazil Product: Biodiesel producer currently developing a 36m-litre plant in the Brazilian state of Mato...

  15. Biodiesel Triangulo | Open Energy Information

    Open Energy Info (EERE)

    Triangulo Jump to: navigation, search Name: Biodiesel Triangulo Place: Iturama, MG, Brazil Product: Brazilian biodiesel producer located in Minas Gerais will develop two biodiesel...

  16. Alternative Fuels Data Center: Biodiesel

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Biodiesel Printable Version Share this resource Send a link to Alternative Fuels Data Center: Biodiesel to someone by E-mail Share Alternative Fuels Data Center: Biodiesel on Facebook Tweet about Alternative Fuels Data Center: Biodiesel on Twitter Bookmark Alternative Fuels Data Center: Biodiesel on Google Bookmark Alternative Fuels Data Center: Biodiesel on Delicious Rank Alternative Fuels Data Center: Biodiesel on Digg Find More places to share Alternative Fuels Data Center: Biodiesel on

  17. Buffalo Biodiesel Inc | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Inc Jump to: navigation, search Name: Buffalo Biodiesel Inc Place: New York Product: Buffalo Biodiesel is a biodiesel producer that buys recycled and virgin oil to...

  18. V Fuels Biodiesel Limited | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Limited Jump to: navigation, search Name: V-Fuels Biodiesel Limited Place: United Kingdom Product: UK-based biodiesel producers. References: V-Fuels Biodiesel Limited1...

  19. Monthly Biodiesel Production Report

    U.S. Energy Information Administration (EIA) Indexed Site

    U.S. Biodiesel production, sales, and stocks million gallons Period B100 production Sales of B100 Sales of B100 included in biodiesel blends Ending stocks of B100 B100 stock change ...

  20. Monthly Biodiesel Production Report

    U.S. Energy Information Administration (EIA) Indexed Site

    U.S. Inputs to biodiesel production million pounds Period Canola oil Corn oil Cottonseed ... Source: U.S. Energy Information Administration, Form EIA-22M "Monthly Biodiesel Production ...

  1. Mississippi State Biodiesel Production Project

    SciTech Connect (OSTI)

    Rafael Hernandez; Todd French; Sandun Fernando; Tingyu Li; Dwane Braasch; Juan Silva; Brian Baldwin

    2008-03-20

    tallow tree and tung tree. High seed yields from these species are possible because, there stature allows for a third dimension in yield (up). Harvest regimes have already been worked out with tung, and the large seed makes shedding of the seed with tree shakers possible. While tallow tree seed yields can be mind boggling (12,000 kg seed/ha at 40% oil), genotypes that shed seed easily are currently not known. Efficient methods were developed to isolate polyunsaturated fatty acid methyl esters from bio-diesel. The hypothesis to isolate this class of fatty acids, which are used as popular dietary supplements and prescription medicine (OMACOR), was that they bind transition metal ions much stronger than their harmful saturated analogs. AgBF4 has the highest extraction ability among all the metal ions tested. Glycerol is a key product from the production of biodiesel. It is produced during the transesterification process by cleaving the fatty acids from the glycerol backbone (the fatty acids are used as part of the biodiesel, which is a fatty acid methyl ester). Glycerol is a non-toxic compound with many uses; however, if a surplus exists in the future, more uses for the produced glycerol needs to be found. Another phase of the project was to find an add-on process to the biodiesel production process that will convert the glycerol by-product into more valuable substances for end uses other than food or cosmetics, focusing at present on 1,3-propanediol and lactic acid.All three MSU cultures produced products at concentrations below that of the benchmark microorganisms. There was one notable isolate the caught the eye of the investigators and that was culture J6 due to the ability of this microorganism to co-produce both products and one in particularly high concentrations. This culture with more understanding of its metabolic pathways could prove a useful biological agent for the conversion of glycerol. Heterogeneous catalysis was examined as an alternative to overcome the

  2. Northern Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Northern Biodiesel Place: Ontario, New York Product: Biodiesel producer. Coordinates: 34.06457, -117.647809 Show Map Loading map... "minzoom":false,"mappingservice":"googlemap...

  3. Fleet Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: Fleet Biodiesel Address: 7710 Balboa Ave Place: San Diego, California Zip: 92111 Region: Southern CA Area Sector: Biofuels Product:...

  4. Infinifuel Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Infinifuel Biodiesel Jump to: navigation, search Name: Infinifuel Biodiesel Place: Dayton, Nevada Zip: 89403 Sector: Geothermal energy Product: A Nevada-based firm developing the...

  5. Biodiesel Garware | Open Energy Information

    Open Energy Info (EERE)

    Garware Jump to: navigation, search Name: Biodiesel Garware Place: Maharashtra, India Product: Maharashtra-based biodiesel production facility which aims to attract joint venture...

  6. Washington Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Logo: Washington Biodiesel Name: Washington Biodiesel Address: 3401 Fremont Avenue N. Place: Seattle, Washington Zip: 98103 Region: Pacific Northwest Area Sector: Biofuels...

  7. General Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: General Biodiesel Address: 4034 West Marginal Way Place: Seattle, Washington Zip: 98106 Region: Pacific Northwest Area Sector: Biofuels...

  8. Harmonization of Biodiesel Specifications

    SciTech Connect (OSTI)

    Alleman, T. L.

    2008-02-01

    Worldwide biodiesel production has grown dramatically over the last several years. Biodiesel standards vary across countries and regions, and there is a call for harmonization. For harmonization to become a reality, standards have to be adapted to cover all feedstocks. Additionally, all feedstocks cannot meet all specifications, so harmonization will require standards to either tighten or relax. For harmonization to succeed, the biodiesel market must be expanded with the alignment of test methods and specification limits, not contracted.

  9. Studies Highlight Biodiesel's Benefits

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Golden, Colo., July 6, 1998 Two new studies highlight the benefits of biodiesel in reducing overall air pollution and in helping to reduce the United States' dependence on ...

  10. Southeast BioDiesel | Open Energy Information

    Open Energy Info (EERE)

    BioDiesel Jump to: navigation, search Name: Southeast BioDiesel Place: Charleston, South Carolina Product: Biodiesel producer based in South Carolina References: Southeast...

  11. Wuhan Airui Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Airui Biodiesel Jump to: navigation, search Name: Wuhan Airui Biodiesel Place: Wuhan, Hubei Province, China Zip: 430070 Product: Airui is a biodiesel processing, R&D, technology...

  12. North American Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    North American Biodiesel Place: Menmonee Falls, Wisconsin Product: Biodiesel producer currently developing a biodiesel plant in Butler, Wisconsin and with plans to develop another...

  13. Green River Biodiesel Incorporated | Open Energy Information

    Open Energy Info (EERE)

    River Biodiesel Incorporated Jump to: navigation, search Name: Green River Biodiesel Incorporated Place: Houston, Texas Zip: 77056 Product: Biodiesel project developer and...

  14. Biodiesel Aragon SL | Open Energy Information

    Open Energy Info (EERE)

    Aragon SL Jump to: navigation, search Name: Biodiesel Aragon SL Place: Altorricon, Spain Product: Spanish-based biodiesel project developer. References: Biodiesel Aragon SL1 This...

  15. Big Biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel LLC Jump to: navigation, search Name: Big Biodiesel LLC Place: Pulaski, Tennessee Zip: 38478 Product: Biodiesel plant developer in Pulaski, Tennessee. References: Big...

  16. Wyoming Biodiesel Co | Open Energy Information

    Open Energy Info (EERE)

    Co Jump to: navigation, search Name: Wyoming Biodiesel Co Place: Wyoming Product: Wyoming-based biodiesel project developer. References: Wyoming Biodiesel Co1 This article is a...

  17. Brownfield Biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    Brownfield Biodiesel LLC Jump to: navigation, search Name: Brownfield Biodiesel LLC Place: Ralls, Texas Zip: 79357 Product: Biodiesel producer in Ralls, Texas. Coordinates:...

  18. Rix Biodiesel Limited | Open Energy Information

    Open Energy Info (EERE)

    Rix Biodiesel Limited Jump to: navigation, search Name: Rix Biodiesel Limited Place: Hull, United Kingdom Zip: HU8 7JR Product: Manufacture, blends and resells biodiesel....

  19. National Trail Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Trail Biodiesel Jump to: navigation, search Name: National Trail Biodiesel Place: Newton, Illinois Zip: 62448 Product: Owner of a planned 30m gallon per year biodiesel plant in...

  20. Pacific Biodiesel Inc | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Inc Jump to: navigation, search Name: Pacific Biodiesel Inc Place: Kahului, Hawaii Zip: 96732 Product: Hawaii-based biodiesel plant designer, producer and distributor in...

  1. Heartland biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    biodiesel LLC Jump to: navigation, search Name: Heartland biodiesel LLC Place: Rock Port, Missouri Product: Biodiesel producer which is currently developing a 113m liter plant in...

  2. Midwest Biodiesel Producers LLC | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Producers LLC Jump to: navigation, search Name: Midwest Biodiesel Producers LLC Place: Alexandria, South Dakota Zip: 57311 Product: South Dakota-based biodiesel producer....

  3. Northwest Biodiesel Network | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Network Jump to: navigation, search Logo: Northwest Biodiesel Network Name: Northwest Biodiesel Network Address: 6532 Phinney Ave N Place: Seattle, Washington Zip: 98103...

  4. EOP Biodiesel AG | Open Energy Information

    Open Energy Info (EERE)

    EOP Biodiesel AG Jump to: navigation, search Name: EOP Biodiesel AG Place: Falkenhagen, Germany Zip: 16928 Product: German producer of biodiesel from rapeseed. References: EOP...

  5. Heartland Biodiesel Inc | Open Energy Information

    Open Energy Info (EERE)

    Heartland Biodiesel Inc Jump to: navigation, search Name: Heartland Biodiesel Inc Place: Herrin, Illinois Product: Biodiesel producer currently developing a 7.5m plant in Marion,...

  6. Biodiesel International Corporation | Open Energy Information

    Open Energy Info (EERE)

    Corporation Jump to: navigation, search Name: Biodiesel International Corporation Place: Texas Product: Texas-based biodiesel production company and biodiesel production equipment...

  7. San Francisco Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: San Francisco Biodiesel Place: San Francisco, California Zip: 94103 Product: Biodiesel producer based in California. The company is a...

  8. Silicon Valley Biodiesel Inc | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Inc Jump to: navigation, search Name: Silicon Valley Biodiesel Inc. Place: Sunnyvale, California Zip: CA 94086 Product: Manufactures biodiesel for the local diesel fuel...

  9. East Fork Biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    Fork Biodiesel LLC Jump to: navigation, search Name: East Fork Biodiesel, LLC Place: Algona, Iowa Sector: Renewable Energy Product: Biodiesel producer and co-developer, with...

  10. Allegro Biodiesel Corporation | Open Energy Information

    Open Energy Info (EERE)

    Allegro Biodiesel Corporation Jump to: navigation, search Name: Allegro Biodiesel Corporation Place: Los Angeles, California Zip: 90045 Product: Allegro Biodiesel Corporation...

  11. General Biodiesel Incorporated | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Incorporated Jump to: navigation, search Name: General Biodiesel Incorporated Place: Seattle, Washington Zip: 98136 Product: General BioDiesel", Inc. specializes in...

  12. Bay Biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel LLC Jump to: navigation, search Name: Bay Biodiesel LLC Place: Martinez, California Zip: 94553 Product: Biodiesel producers in Martinez, California. References: Bay...

  13. Blue Sun Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Sun Biodiesel Jump to: navigation, search Name: Blue Sun Biodiesel Place: Fort Collins, Colorado Zip: 80525 Product: Privately held Blue Sun Biodiesel is a breakthrough agriculture...

  14. Biodiesel + SCR Retrofit Testing | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    + SCR Retrofit Testing Biodiesel + SCR Retrofit Testing This work retrofitted an in-use ... More Documents & Publications DPF Performance with Biodiesel Blends Impact of Biodiesel on ...

  15. Biodiesel Research Update | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Research Update Biodiesel Research Update 2004 Diesel Engine Emissions Reduction (DEER) ... Recent Research to Address Technical Barriers to Increased Use of Biodiesel Biodiesel ASTM ...

  16. Alternative Fuels Data Center: Biodiesel Fueling Stations

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    More Biodiesel Data | All Maps & Data Case Studies Missouri High School Students Get Hands-On Training With Biodiesel New Hampshire Railway Makes Tracks With Biodiesel Idaho ...

  17. Effects of Biodiesel on NOx Emissions

    SciTech Connect (OSTI)

    McCormick, R.

    2005-06-01

    A presentation about the effects of biodiesel on nitrogen oxide emissions presented at the ARB Biodiesel Workshop June 8, 2005.

  18. Biodiesel R&D at NREL

    SciTech Connect (OSTI)

    McCormick, R.; Alleman, T.; Barnitt, R.; Clark, W.; Hayes, B.; Ireland, J.; Proc, K.; Ratcliff, M.; Thornton, M.; Whitacre, S.; Williams, A.

    2006-02-06

    Discusses NREL's biodiesel research priorities and some current research results, including those concerning biodiesel quality and stability.

  19. Life-Cycle Assessment of the Use of Jatropha Biodiesel in Indian Locomotives (Revised)

    SciTech Connect (OSTI)

    Whitaker, M.; Heath, G.

    2009-03-01

    With India's transportation sector relying heavily on imported petroleum-based fuels, the Planning Commission of India and the Indian government recommended the increased use of blended biodiesel in transportation fleets, identifying Jatropha as a potentially important biomass feedstock. The Indian Oil Corporation and Indian Railways are collaborating to increase the use of biodiesel blends in Indian locomotives with blends of up to B20, aiming to reduce GHG emissions and decrease petroleum consumption. To help evaluate the potential for Jatropha-based biodiesel in achieving sustainability and energy security goals, this study examines the life cycle, net GHG emission, net energy ratio, and petroleum displacement impacts of integrating Jatropha-based biodiesel into locomotive operations in India. In addition, this study identifies the parameters that have the greatest impact on the sustainability of the system.

  20. Monthly Biodiesel Production Report

    U.S. Energy Information Administration (EIA) Indexed Site

    Monthly Biodiesel Production Report With data for June 2016 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 August 2016 U.S. Energy Information Administration | Monthly Biodiesel Production Report This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or

  1. Emerald Biodiesel Holdings GmbH EBHG | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Holdings GmbH EBHG Jump to: navigation, search Name: Emerald Biodiesel Holdings GmbH (EBHG) Place: Germany Product: Biodiesel company Emerald Biodiesel Holdings is the...

  2. Biodiesel_Fuel_Management_Best_Practices_Report.pdf | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    BiodieselFuelManagementBestPracticesReport.pdf BiodieselFuelManagementBestPracticesReport.pdf BiodieselFuelManagementBestPracticesReport.pdf BiodieselFuelManagemen...

  3. Business management for biodiesel producers

    SciTech Connect (OSTI)

    Gerpen, Jon Van

    2004-07-01

    The material in this book is intended to provide the reader with information about the biodiesel and liquid fuels industry, biodiesel start-up issues, legal and regulatory issues, and operational concerns.

  4. Pacific Biodiesel: Renewable and Sustainable

    Broader source: Energy.gov [DOE]

    Presentation covers the Pacific Biodiesel topic and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

  5. Los Alamos National Laboratory considers the use of biodiesel.

    SciTech Connect (OSTI)

    Matlin, M. K.

    2002-01-01

    A new EPA-approved alternative fuel, called biodiesel, may soon be used at Los Alamos National Laboratory in everything from diesel trucks to laboratory equipment. Biodiesel transforms vegetable oils into a renewable, cleaner energy source that can be used in any machinery that uses diesel fuel. For the past couple years, the Laboratory has been exploring the possibility of switching over to soybean-based biodiesel. This change could lead to many health and environmental benefits, as well as help reduce the nation's dependence on foreign oil. Biodiesel is a clean, renewable diesel fuel substitute made from soybean and other vegetable oil crops, as well as from recycled cooking oils. A chemical process breaks down the vegetable oil into a usable form. Vegetable oil has a chain of about 18 carbons and ordinary diesel has about 12 or 13 carbons. The process breaks the carbon chains of the vegetable oil and separates out the glycerin (a fatty substance used in creams and soaps). The co-product of glycerin can be used by pharmaceutical and cosmetic companies, as well as many other markets. Once the chains are shortened and the glycerin is removed from the oil, the remaining liquid is similar to petroleum diesel fuel. It can be burned in pure form or in a blend of any proportion with petroleum diesel. To be considered an alternative fuel source by the EPA, the blend must be at least 20 percent biodiesel (B20). According to the U.S. Department of Energy (DOE), biodiesel is America's fastest growing alternative fuel.

  6. Biodiesel Performance, Costs, and Use

    Reports and Publications (EIA)

    2004-01-01

    Biodiesel fuel for diesel engines is produced from vegetable oil or animal fat by the chemical process of esterification. This paper presents a brief history of diesel engine technology and an overview of biodiesel, including performance characteristics, economics, and potential demand. The performance and economics of biodiesel are compared with those of petroleum diesel.

  7. Alternative Fuels Data Center: Biodiesel Blends

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Blends to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Blends on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Blends on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Blends on Google Bookmark Alternative Fuels Data Center: Biodiesel Blends on Delicious Rank Alternative Fuels Data Center: Biodiesel Blends on Digg Find More places to share Alternative Fuels Data Center: Biodiesel Blends on AddThis.com... More in this section... Biodiesel Basics

  8. Alternative Fuels Data Center: Biodiesel Related Links

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Biodiesel Printable Version Share this resource Send a link to Alternative Fuels Data Center: Biodiesel Related Links to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Related Links on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Related Links on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Related Links on Google Bookmark Alternative Fuels Data Center: Biodiesel Related Links on Delicious Rank Alternative Fuels Data Center: Biodiesel Related Links

  9. Earthship BioDiesel | Open Energy Information

    Open Energy Info (EERE)

    Earthship BioDiesel Jump to: navigation, search Name: Earthship BioDiesel Place: Taos, New Mexico Zip: 87571 Product: Supplier and retailer of biodiesel made from Waste Vegetable...

  10. 2004 Biodiesel Handling and Use Guidelines (Revised)

    SciTech Connect (OSTI)

    Not Available

    2004-11-01

    This document is a guide for those who blend, distribute, and use biodiesel and biodiesel blends. It is intended to fleets and individual users, blenders, distributors, and those involved in related activities understand procedures for handling and using biodiesel.

  11. Mid States Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    States Biodiesel Jump to: navigation, search Name: Mid-States Biodiesel Place: Hampton, Iowa Product: Iowa-based biodiesel producer. Coordinates: 37.027795, -76.345119 Show Map...

  12. Tri State Biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel LLC Jump to: navigation, search Name: Tri-State Biodiesel LLC Place: New York, New York Zip: 10009 Product: A New York-based producer and retailer of biodiesel....

  13. Alternative Fuels Data Center: Biodiesel Benefits

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Benefits to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Benefits on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Benefits on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Benefits on Google Bookmark Alternative Fuels Data Center: Biodiesel Benefits on Delicious Rank Alternative Fuels Data Center: Biodiesel Benefits on Digg Find More places to share Alternative Fuels Data Center: Biodiesel Benefits on AddThis.com... More in this section...

  14. Alternative Fuels Data Center: Biodiesel Fuel Basics

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Fuel Basics to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Fuel Basics on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Fuel Basics on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Fuel Basics on Google Bookmark Alternative Fuels Data Center: Biodiesel Fuel Basics on Delicious Rank Alternative Fuels Data Center: Biodiesel Fuel Basics on Digg Find More places to share Alternative Fuels Data Center: Biodiesel Fuel Basics on AddThis.com... More in

  15. Alternative Fuels Data Center: ASTM Biodiesel Specifications

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    ASTM Biodiesel Specifications to someone by E-mail Share Alternative Fuels Data Center: ASTM Biodiesel Specifications on Facebook Tweet about Alternative Fuels Data Center: ASTM Biodiesel Specifications on Twitter Bookmark Alternative Fuels Data Center: ASTM Biodiesel Specifications on Google Bookmark Alternative Fuels Data Center: ASTM Biodiesel Specifications on Delicious Rank Alternative Fuels Data Center: ASTM Biodiesel Specifications on Digg Find More places to share Alternative Fuels Data

  16. Alternative Fuels Data Center: Biodiesel Equipment Options

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Equipment Options to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Equipment Options on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Equipment Options on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Equipment Options on Google Bookmark Alternative Fuels Data Center: Biodiesel Equipment Options on Delicious Rank Alternative Fuels Data Center: Biodiesel Equipment Options on Digg Find More places to share Alternative Fuels Data Center: Biodiesel

  17. Biodiesel Fuel Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Biodiesel Fuel Basics Biodiesel Fuel Basics July 30, 2013 - 2:43pm Addthis Biodiesel is a domestically produced, renewable fuel that can be manufactured from vegetable oils, animal fats, or recycled restaurant greases. What Is Biodiesel? Biodiesel is a liquid fuel produced from renewable sources such as new and used vegetable oils and animal fats and is a cleaner-burning replacement for petroleum-based diesel fuel. It is nontoxic and biodegradable. Like petroleum-derived diesel, biodiesel is

  18. Integrated Biodiesel Industries Ltd | Open Energy Information

    Open Energy Info (EERE)

    Industries Ltd Jump to: navigation, search Name: Integrated Biodiesel Industries Ltd Place: Sao Paulo, Sao Paulo, Brazil Zip: 01418-200 Product: Sao Paulo-based biodiesel producer....

  19. Atlantic Biodiesel Inc | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Inc Jump to: navigation, search Name: Atlantic Biodiesel, Inc. Place: Salem, New Hampshire Zip: 30790 Product: Privately-held corporation producing biodiesal in its...

  20. New York Biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    LLC Jump to: navigation, search Name: New York Biodiesel LLC Place: Hamilton, Madison County, New York Product: Biodiesel producer using soybean oil as its feedstock References:...

  1. Biodiesel Technologies India Ltd | Open Energy Information

    Open Energy Info (EERE)

    India Ltd Jump to: navigation, search Name: Biodiesel Technologies India Ltd. Place: Kolkata, West Bengal, India Zip: 700045 Product: Kolkata based manufacturer of biodiesel...

  2. Northeast Biodiesel Company LLC | Open Energy Information

    Open Energy Info (EERE)

    Company LLC Jump to: navigation, search Name: Northeast Biodiesel Company, LLC Place: Massachusetts Zip: 1301 Product: Massachusetts-based biodiesel producer and project developer....

  3. Midwest Biodiesel Products | Open Energy Information

    Open Energy Info (EERE)

    Products Jump to: navigation, search Name: Midwest Biodiesel Products Place: Caseyville, Illinois Zip: 62232 Product: Midwest Biodiesel Products, Inc. is an Illinois based...

  4. Biodiesel Coalition of Texas | Open Energy Information

    Open Energy Info (EERE)

    Coalition of Texas Jump to: navigation, search Logo: Biodiesel Coalition of Texas Name: Biodiesel Coalition of Texas Address: 100 Congress Avenue Place: Austin, Texas Zip: 78701...

  5. Virginia Biodiesel Refinery | Open Energy Information

    Open Energy Info (EERE)

    Refinery Jump to: navigation, search Name: Virginia Biodiesel Refinery Place: West Point, Virginia Zip: 23180 Product: Biodiesel producer based in Virginia References: Virginia...

  6. Garden State Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: Garden State Biodiesel Place: Harrisonville, New Jersey Product: Biodiosel producer based in Harrisonville, New Jersey. Coordinates:...

  7. Springboard Biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    Springboard Biodiesel LLC Jump to: navigation, search Name: Springboard Biodiesel LLC Place: Chico, California Zip: 95928 Product: Provider of products and technologies for the...

  8. Biodiesel Systems LLC | Open Energy Information

    Open Energy Info (EERE)

    Systems LLC Jump to: navigation, search Name: Biodiesel Systems, LLC Place: Madison, Wisconsin Zip: WI 53704 Product: The core business of Biodiesel Systems is plan, design,...

  9. Tellurian Biodiesel Inc | Open Energy Information

    Open Energy Info (EERE)

    Tellurian Biodiesel Inc Jump to: navigation, search Name: Tellurian Biodiesel, Inc. Place: San Francisco, California Zip: 94110 Product: String representation "Tellurian Biodi ......

  10. Biodiesel Basics (Fact Sheet), Vehicle Technologies Program ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Biodiesel Basics (Fact Sheet), Vehicle Technologies Program (VTP) Biodiesel Basics (Fact Sheet), Vehicle Technologies Program (VTP) Fact sheet providing questions and answers on ...

  11. Monthly Biodiesel Production Report - Energy Information Administratio...

    U.S. Energy Information Administration (EIA) Indexed Site

    Monthly Biodiesel Production Report With Data for April 2016 | Release Date: June 30, 2016 ... Highlights Production - U.S. production of biodiesel was 119 million gallons in April ...

  12. Biodiesel's Enabling Characteristics in Attaining Low Temperature...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Discusses reasons and physical significance of cool-flame behavior of biodiesel on ... System-Response Issues Imposed by Biodiesel in a Medium-Duty Diesel Engine ...

  13. Biodiesel Industries Inc | Open Energy Information

    Open Energy Info (EERE)

    Barbara, California Zip: 93110 Product: Biodiesel producer and facility developer. References: Biodiesel Industries Inc1 This article is a stub. You can help OpenEI by expanding...

  14. Biodiesel Investment Group | Open Energy Information

    Open Energy Info (EERE)

    search Name: Biodiesel Investment Group Place: Dallas, Texas Zip: 75205 Sector: Biofuels Product: Biodiesel Investment Group is a subsidiary established by Earth Biofuels to...

  15. Alternative Fuels Data Center: Biodiesel Vehicle Emissions

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    ... Alternative Fuel Vehicles Beat the Heat, Fight the Freeze, and Conquer the Mountains New Hampshire Railway Makes Tracks With Biodiesel More Biodiesel Case Studies | All Case ...

  16. Costilla County Biodiesel Pilot Project

    SciTech Connect (OSTI)

    Doon, Ben; Quintana, Dan

    2011-08-25

    The Costilla County Biodiesel Pilot Project has demonstrated the compatibility of biodiesel technology and economics on a local scale. The project has been committed to making homegrown biodiesel a viable form of community economic development. The project has benefited by reducing risks by building the facility gradually and avoiding large initial outlays of money for facilities and technologies. A primary advantage of this type of community-scale biodiesel production is that it allows for a relatively independent, local solution to fuel production. Successfully using locally sourced feedstocks and putting the fuel into local use emphasizes the feasibility of different business models under the biodiesel tent and that there is more than just a one size fits all template for successful biodiesel production.

  17. Impact of Biodiesel on the Near-term Performance and Long-term Durability

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Advanced Aftertreatment Systems | Department of Energy on the Near-term Performance and Long-term Durability of Advanced Aftertreatment Systems Impact of Biodiesel on the Near-term Performance and Long-term Durability of Advanced Aftertreatment Systems Compare SCR catalyst performance with ULSD and Soy B20 through engine testing deer09_williams.pdf (1.02 MB) More Documents & Publications Vehicle Technologies Office Merit Review 2014: Biofuel Impacts on Aftertreatment Devices

  18. Microsoft Word - Biodiesel.doc

    Gasoline and Diesel Fuel Update (EIA)

    9 1 April 2009 Short-Term Energy Outlook Supplement: Biodiesel Supply and Consumption in the Short-Term Energy Outlook 1 Introduction The historical biodiesel consumption data published in the EIA Monthly Energy Review (http://www.eia.doe.gov/emeu/mer/contents.html) March 2009 edition were revised to account for imports and exports. Table 10.4 of the Monthly Energy Review was expanded to display biodiesel imports, exports, stocks, stock change, and consumption. Similar revisions were made in the

  19. Low-Temperature Biodiesel Research Reveals Potential Key to Successful Blend Performance (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-02-01

    Relatively low-cost solutions could improve reliability while making biodiesel blends an affordable option. While biodiesel has very low production costs and the potential to displace up to 10% of petroleum diesel, until now, issues with cold weather performance have prevented biodiesel blends from being widely adopted. Some biodiesel blends have exhibited unexplained low-temperature performance problems even at blend levels as low as 2% by volume. The most common low-temperature performance issue is vehicle stalling caused by fuel filter clogging, which prevents fuel from reaching the engine. Research at the National Renewable Energy Laboratory (NREL) reveals the properties responsible for these problems, clearing a path for the development of solutions and expanded use of energy-conserving and low-emissions alternative fuel. NREL researchers set out to study the unpredictable nature of biodiesel crystallization, the condition that impedes the flow of fuel in cold weather. Their research revealed for the first time that saturated monoglyceride impurities common to the biodiesel manufacturing process create crystals that can cause fuel filter clogging and other problems when cooling at slow rates. Biodiesel low-temperature operational problems are commonly referred to as 'precipitates above the cloud point (CP).' NREL's Advanced Biofuels team spiked distilled soy and animal fat-derived B100, as well as B20, B10, and B5 biodiesel blends with three saturated monoglycerides (SMGs) at concentration levels comparable to those of real-world fuels. Above a threshold or eutectic concentration, the SMGs (monomyristin, monopalmitin, and monostearin) were shown to significantly raise the biodiesel CP, and had an even greater impact on the final melting temperature. Researchers discovered that upon cooling, monoglyceride initially precipitates as a metastable crystal, but it transforms over time or upon slight heating into a more stable crystal with a much lower solubility and

  20. Snohomish County Biodiesel Project

    SciTech Connect (OSTI)

    Terrill Chang; Deanna Carveth

    2010-02-01

    Snohomish County in western Washington State began converting its vehicle fleet to use a blend of biodiesel and petroleum diesel in 2005. As prices for biodiesel rose due to increased demand for this cleaner-burning fuel, Snohomish County looked to its farmers to “grow” this fuel locally. Suitable seed crops that can be crushed to extract oil for use as biodiesel feedstock include canola, mustard, and camelina. The residue, or mash, has high value as an animal feed. County farmers began with 52 acres of canola and mustard crops in 2006, increasing to 250 acres and 356 tons in 2008. In 2009, this number decreased to about 150 acres and 300 tons due to increased price for mustard seed.

  1. DBD Deutsche Biodiesel GmbH | Open Energy Information

    Open Energy Info (EERE)

    DBD Deutsche Biodiesel GmbH Jump to: navigation, search Name: DBD Deutsche Biodiesel GmbH Place: Berlin, Germany Product: Developer of the DBD Regensberg biodiesel project....

  2. Biodiesel of Las Vegas Inc | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel of Las Vegas Inc Jump to: navigation, search Name: Biodiesel of Las Vegas Inc Place: San Luis Obispo, California Zip: 93401 Product: Biodiesel producer. Headoffice is in...

  3. Big Daddy s Biodiesel Inc | Open Energy Information

    Open Energy Info (EERE)

    Daddy s Biodiesel Inc Jump to: navigation, search Name: Big Daddy's Biodiesel Inc Place: Hereford, Texas Zip: 79045 Product: Biodiesel producer in Hereford, Texas. References: Big...

  4. SeQuential Pacific Biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    Pacific Biodiesel LLC Jump to: navigation, search Name: SeQuential-Pacific Biodiesel LLC Place: Oregon Sector: Biofuels Product: JV between SeQuential Biofuels, Pacific Biodiesel,...

  5. E85 and Biodiesel Deployment (Presentation)

    SciTech Connect (OSTI)

    Harrow, G.

    2007-09-18

    Presentation outlines industry trends and statistics revolving around the use and production of ethanol and biodiesel.

  6. Biodiesel and the Advanced Biofuel Market

    Broader source: Energy.gov [DOE]

    The Success of Advanced Biofuels Anne Steckel, Vice President of Federal Affairs, National Biodiesel Board

  7. Biodiesel Impact on Engine Lubricant Dilution During Active Regeneration of Aftertreatment Systems

    SciTech Connect (OSTI)

    He, X.; Williams, A.; Christensen, E.; Burton, J.; McCormick, R.

    2011-12-01

    Experiments were conducted with ultra low sulfur diesel (ULSD) and 20% biodiesel blends (B20) to compare lube oil dilution levels and lubricant properties for systems using late in-cylinder fuel injection for aftertreatment regeneration. Lube oil dilution was measured by gas chromatography (GC) following ASTM method D3524 to measure diesel content, by Fourier transform infrared (FTIR) spectrometry following a modified ASTM method D7371 to measure biodiesel content, and by a newly developed back-flush GC method that simultaneously measures both diesel and biodiesel. Heavy-duty (HD) engine testing was conducted on a 2008 6.7L Cummins ISB equipped with a diesel oxidation catalyst (DOC) and diesel particle filter (DPF). Stage one of engine testing consisted of 10 consecutive repeats of a forced DPF regeneration event. This continuous operation with late in-cylinder fuel injection served as a method to accelerate lube-oil dilution. Stage two consisted of 16 hours of normal engine operation over a transient test cycle, which created an opportunity for any accumulated fuel in the oil sump to evaporate. Light duty (LD) vehicle testing was conducted on a 2010 VW Jetta equipped with DOC, DPF and a NOx storage catalyst (NSC). Vehicle testing comprised approximately 4,000 miles of operation on a mileage-accumulation dynamometer (MAD) using the U.S. Environmental Protection Agency's Highway Fuel Economy Cycle because of the relatively low engine oil and exhaust temperatures, and high DPF regeneration frequency of this cycle relative to other cycles examined. Comparison of the lube oil dilution analysis methods suggests that D3524 does not measure dilution by biodiesel. The new back-flush GC method provided analysis for both diesel and biodiesel, in a shorter time and with lower detection limit. Thus all lube oil dilution results in this paper are based on this method. Analysis of the HD lube-oil samples showed only 1.5% to 1.6% fuel dilution for both fuels during continuous

  8. Biodiesel and Pollutant Emissions (Presentation)

    SciTech Connect (OSTI)

    McCormick, R.; Williams, A.; Ireland, J.; Hayes, B.

    2006-09-28

    Presents the results from three methods of testing--engine, chassis, and PEM--for testing nitrogen oxide (NOx) emissions from B20.

  9. BioDiesel One Ltd | Open Energy Information

    Open Energy Info (EERE)

    BioDiesel One Ltd Jump to: navigation, search Name: BioDiesel One, Ltd. Place: Southington, Connecticut Zip: 6489 Product: BioDiesel One plans to develop a biodiesel plant in...

  10. Stability of Biodiesel and Biodiesel Blends: Interim Report

    SciTech Connect (OSTI)

    McCormick, R. L.; Alleman, T. L.; Waynick, J. A.; Westbrook, S. R.; Porter, S.

    2006-04-01

    This is an interim report for a study of biodiesel oxidative stability. It describes characterization and accelerated stability test results for 19 B100 samples and six diesel fuels.

  11. Biodiesel Offers a Renewable Alternative

    Broader source: Energy.gov [DOE]

    Biodiesel is a renewable fuel made of vegetable oils or animal fats. It can be produced from new oils such as soy or used vegetable oils like restaurant grease.

  12. Impact of Biodiesel Impurities on the Performance and Durability of DOC, DPF and SCR Technologies: Preprint

    SciTech Connect (OSTI)

    Williams, A.; McCormick, R.; Luecke, J.; Brezny, R.; Geisselmann, A.; Voss, K.; Hallstrom, K.; Leustek, M.; Parsons, J.; Abi-Akar, H.

    2011-04-01

    An accelerated durability test method determined the potential impact of biodiesel ash impurities, including engine testing with multiple diesel particulate filter substrate types, as well as diesel oxidation catalyst and selective catalyst reduction catalysts. The results showed no significant degradation in the thermo-mechanical properties of a DPF after exposure to 150,000-mile equivalent biodiesel ash and thermal aging. However, exposure to 435,000-mile equivalent aging resulted in a 69% decrease in thermal shock resistance. A decrease in DOC activity was seen after exposure to 150,000-mile equivalent aging, resulting in higher hydrocarbon slip and a reduction in NO2 formation. The SCR catalyst experienced a slight loss in activity after exposure to 435,000-mile equivalent aging. The SCR catalyst, placed downstream of the DPF and exposed to B20 exhaust suffered a 5% reduction in overall NOx conversion activity over the HDDT test cycle. It is estimated that the additional ash from 150,000 miles of biodiesel use would also result in a moderate increases in exhaust backpressure for a DPF. The results of this study suggest that long-term operation with B20 at the current specification limits for alkali and alkaline earth metal impurities will adversely impact the performance of DOC, DPF and SCR systems.

  13. Measurement of biodiesel blend and conventional diesel spray structure using x-ray radiography.

    SciTech Connect (OSTI)

    Kastengren, A. L.; Powell, C. F.; Wang, Y. J.; IM, K. S.; Wang, J.

    2009-11-01

    The near-nozzle structure of several nonevaporating biodiesel-blend sprays has been studied using X-ray radiography. Radiography allows quantitative measurements of the fuel distribution in sprays to be made with high temporal and spatial resolution. Measurements have been made at different values of injection pressure, ambient density, and with two different nozzle geometries to understand the influences of these parameters on the spray structure of the biodiesel blend. These measurements have been compared with corresponding measurements of Viscor, a diesel calibration fluid, to demonstrate the fuel effects on the spray structure. Generally, the biodiesel-blend spray has a similar structure to the spray of Viscor. For the nonhydroground nozzle used in this study, the biodiesel-blend spray has a slightly slower penetration into the ambient gas than the Viscor spray. The cone angle of the biodiesel-blend spray is generally smaller than that of the Viscor spray, indicating that the biodiesel-blend spray is denser than the Viscor spray. For the hydroground nozzle, both fuels produce sprays with initially wide cone angles that transition to narrow sprays during the steady-state portion of the injection event. These variations in cone angle with time occur later for the biodiesel-blend spray than for the Viscor spray, indicating that the dynamics of the injector needle as it opens are somewhat different for the two fuels.

  14. Biodiesel Energy Trading Limited | Open Energy Information

    Open Energy Info (EERE)

    Limited Jump to: navigation, search Name: Biodiesel Energy Trading Limited Place: London, United Kingdom Zip: W1J 8DY Product: London-based company focused on trading of biodiesel....

  15. Wyobraska Biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    Wyobraska Biodiesel LLC Jump to: navigation, search Name: Wyobraska Biodiesel LLC Place: Scottsbluff, Nebraska Zip: 69361 Product: Wyobraska operates a 37.9mLpa (10m gallon)...

  16. GS Global Biodiesel JV | Open Energy Information

    Open Energy Info (EERE)

    Global Biodiesel JV Jump to: navigation, search Name: GS Global Biodiesel JV Place: Iowa Product: JV between GS AgriFuels and Global Ethanol set-up to develop a plant that will...

  17. Biodiesel Esla Campos | Open Energy Information

    Open Energy Info (EERE)

    Esla Campos Jump to: navigation, search Name: Biodiesel Esla Campos Place: Spain Product: Company formed to build and own a biodiesel plant at Cabreros del R-o in Spain....

  18. Red River Biodiesel Ltd | Open Energy Information

    Open Energy Info (EERE)

    Ltd Jump to: navigation, search Name: Red River Biodiesel, Ltd. Place: Houston, Texas Zip: 77006 Product: Red River operates a biodiesel plant in Houstion, Texas with a capacity of...

  19. Biodiesel is Working Hard in Kentucky

    SciTech Connect (OSTI)

    Not Available

    2004-04-01

    This 4-page Clean Cities fact sheet describes the use of biodiesel fuel in 6 school districts throughout Kentucky. It contains usage information for each school district, as well as contact information for local Clean Cities Coordinators and Biodiesel suppliers.

  20. Characterization of Biodiesel Oxidation and Oxidation Products

    SciTech Connect (OSTI)

    Not Available

    2005-08-01

    Features a literature review of 130 technical references pertaining to fatty oil and fatty ester stability chemistry in biodiesel fuels.

  1. The Biofuel Project: Creating Bio-diesel

    K-12 Energy Lesson Plans and Activities Web site (EERE)

    This activity introduces students to alternative fuels and gives them an opportunity to produce their own biodiesel fuel. The text of the exercise gives students a brief background in the environmental benefits of using biodiesel as a diesel substitute. The lab portion of this exercise demonstrates the basic chemistry involved in making biodiesel from vegetable oils and waste oils.

  2. Biodiesel Analytical Methods: August 2002--January 2004

    SciTech Connect (OSTI)

    Van Gerpen, J.; Shanks, B.; Pruszko, R.; Clements, D.; Knothe, G.

    2004-07-01

    Biodiesel is an alternative fuel for diesel engines that is receiving great attention worldwide. The material contained in this book is intended to provide the reader with information about biodiesel engines and fuels, analytical methods used to measure fuel properties, and specifications for biodiesel quality control.

  3. Life Cycle Assessment Comparing the Use of Jatropha Biodiesel in the Indian Road and Rail Sectors

    SciTech Connect (OSTI)

    Whitaker, M.; Heath, G.

    2010-05-01

    This life cycle assessment of Jatropha biodiesel production and use evaluates the net greenhouse gas (GHG) emission (not considering land-use change), net energy value (NEV), and net petroleum consumption impacts of substituting Jatropha biodiesel for conventional petroleum diesel in India. Several blends of biodiesel with petroleum diesel are evaluated for the rail freight, rail passenger, road freight, and road-passenger transport sectors that currently rely heavily on petroleum diesel. For the base case, Jatropha cultivation, processing, and use conditions that were analyzed, the use of B20 results in a net reduction in GHG emissions and petroleum consumption of 14% and 17%, respectively, and a NEV increase of 58% compared with the use of 100% petroleum diesel. While the road-passenger transport sector provides the greatest sustainability benefits per 1000 gross tonne kilometers, the road freight sector eventually provides the greatest absolute benefits owing to substantially higher projected utilization by year 2020. Nevertheless, introduction of biodiesel to the rail sector might present the fewest logistic and capital expenditure challenges in the near term. Sensitivity analyses confirmed that the sustainability benefits are maintained under multiple plausible cultivation, processing, and distribution scenarios. However, the sustainability of any individual Jatropha plantation will depend on site-specific conditions.

  4. Regulated Emissions from Biodiesel Tested in Heavy-Duty Engines Meeting 2004 Emission Standards

    SciTech Connect (OSTI)

    McCormick, R. L.; Tennant, C. J.; Hayes, R. R.; Black, S.; Ireland, J.; McDaniel, T.; Williams, A.; Frailey, M.; Sharp, C. A.

    2005-11-01

    Biodiesel produced from soybean oil, canola oil, yellow grease, and beef tallow was tested in two heavy-duty engines. The biodiesels were tested neat and as 20% by volume blends with a 15 ppm sulfur petroleum-derived diesel fuel. The test engines were the following: 2002 Cummins ISB and 2003 DDC Series 60. Both engines met the 2004 U.S. emission standard of 2.5 g/bhp-h NO{sub x}+HC (3.35 g/kW-h) and utilized exhaust gas recirculation (EGR). All emission tests employed the heavy-duty transient procedure as specified in the U.S. Code of Federal Regulations. Reduction in PM emissions and increase in NO{sub x} emissions were observed for all biodiesels in all engines, confirming observations made in older engines. On average PM was reduced by 25% and NO{sub x} increased by 3% for the two engines tested for a variety of B20 blends. These changes are slightly larger in magnitude, but in the same range as observed in older engines. The cetane improver 2-ethyl hexyl nitrate was shown to have no measurable effect on NO{sub x} emissions from B20 in these engines, in contrast to observations reported for older engines. The effect of intake air humidity on NO{sub x} emissions from the Cummins ISB was quantified. The CFR NO{sub x}/humidity correction factor was shown to be valid for an engine equipped with EGR, operating at 1700 m above sea level, and operating on conventional or biodiesel.

  5. A review of chromatographic characterization techniques for biodiesel and biodiesel blends.

    SciTech Connect (OSTI)

    Pauls, R. E.

    2011-05-01

    This review surveys chromatographic technology that has been applied to the characterization of biodiesel and its blends. Typically, biodiesel consists of fatty acid methyl esters produced by transesterification of plant or animal derived triacylglycerols. Primary attention is given to the determination of trace impurities in biodiesel, such as methanol, glycerol, mono-, di-, and triacylglycerols, and sterol glucosides. The determination of the fatty acid methyl esters, trace impurities in biodiesel, and the determination of the biodiesel content of commercial blends of biodiesel in conventional diesel are also addressed.

  6. Biodegradation of biodiesel fuels

    SciTech Connect (OSTI)

    Zhang, X.; Haws, R.; Wright, B.; Reese, D.; Moeller, G.; Peterson, C.

    1995-12-31

    Biodiesel fuel test substances Rape Ethyl Ester (REE), Rape Methyl Ester (RME), Neat Rape Oil (NR), Say Methyl Ester (SME), Soy Ethyl Ester (SEE), Neat Soy Oil (NS), and proportionate combinations of RME/diesel and REE/diesel were studied to test the biodegradability of the test substances in an aerobic aquatic environment using the EPA 560/6-82-003 Shake Flask Test Method. A concurrent analysis of Phillips D-2 Reference Diesel was also performed for comparison with a conventional fuel. The highest rates of percent CO{sub 2} evolution were seen in the esterified fuels, although no significant difference was noted between them. Ranges of percent CO{sub 2} evolution for esterified fuels were from 77% to 91%. The neat rape and neat soy oils exhibited 70% to 78% CO{sub 2} evolution. These rates were all significantly higher than those of the Phillips D-2 reference fuel which evolved from 7% to 26% of the organic carbon to CO{sub 2}. The test substances were examined for BOD{sub 5} and COD values as a relative measure of biodegradability. Water Accommodated Fraction (WAF) was experimentally derived and BOD{sub 5} and COD analyses were carried out with a diluted concentration at or below the WAF. The results of analysis at WAF were then converted to pure substance values. The pure substance BOD{sub 5} and COD values for test substances were then compared to a control substance, Phillips D-2 Reference fuel. No significant difference was noted for COD values between test substances and the control fuel. (p > 0.20). The D-2 control substance was significantly lower than all test substances for BCD, values at p << 0.01. RME was also significantly lower than REE (p < 0.05) and MS (p < 0.01) for BOD{sub 5} value.

  7. GHP Biodiesel GmbH | Open Energy Information

    Open Energy Info (EERE)

    GHP Biodiesel GmbH Jump to: navigation, search Name: GHP Biodiesel GmbH Place: Germany Zip: HRA 13253 Product: A provider of a solution package for the establishment of biodiesel...

  8. Biodiesel Sued GmbH | Open Energy Information

    Open Energy Info (EERE)

    Sued GmbH Jump to: navigation, search Name: Biodiesel Sued GmbH Place: Stuttgart, Baden-Wrttemberg, Germany Zip: 70567 Product: Biodiesel Sued is biodiesel producer and...

  9. Marina Biodiesel GmbH Co KG | Open Energy Information

    Open Energy Info (EERE)

    Marina Biodiesel GmbH Co KG Jump to: navigation, search Name: Marina Biodiesel GmbH & Co.KG Place: Brunsbttel, Schleswig-Holstein, Germany Zip: 25541 Product: Marina Biodiesel...

  10. US BioDiesel Group | Open Energy Information

    Open Energy Info (EERE)

    BioDiesel Group Jump to: navigation, search Name: US BioDiesel Group Place: San Francisco, California Zip: 94111 Product: San Francisco-based developer of biodiesel production...

  11. JCN Neckermann Biodiesel GmbH | Open Energy Information

    Open Energy Info (EERE)

    JCN Neckermann Biodiesel GmbH Jump to: navigation, search Name: JCN Neckermann Biodiesel GmbH Place: Halle, Germany Zip: 6118 Product: Biodiesel producer with interests in four...

  12. Galveston Bay Biodiesel LP GBB | Open Energy Information

    Open Energy Info (EERE)

    Galveston Bay Biodiesel LP GBB Jump to: navigation, search Name: Galveston Bay Biodiesel LP (GBB) Place: Houston, Texas Product: Developer of a 75.8m litre per year biodiesel...

  13. Biodiesel Kyritz GmbH | Open Energy Information

    Open Energy Info (EERE)

    Kyritz GmbH Jump to: navigation, search Name: Biodiesel Kyritz GmbH Place: Nordhorn, Lower Saxony, Germany Zip: 48527 Product: Biodiesel Kyritz is a biodiesel producer and...

  14. Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Biodiesel Printable Version Share this resource Send a link to Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel to someone by E-mail Share Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Facebook Tweet about Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Twitter Bookmark Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Google Bookmark Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Delicious Rank Alternative

  15. Alternative Fuels Data Center: Biodiesel Production and Distribution

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Biodiesel Production and Distribution to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Production and Distribution on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Production and Distribution on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Production and Distribution on Google Bookmark Alternative Fuels Data Center: Biodiesel Production and Distribution on Delicious Rank Alternative Fuels Data Center: Biodiesel Production and Distribution on Digg

  16. West Central Biodiesel Investors LLC | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Investors LLC Jump to: navigation, search Name: West Central Biodiesel Investors, LLC Place: Ralston, Iowa Zip: 51459 Product: Iowa-based body raising capital to support...

  17. The California Biodiesel Alliance CBA | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Alliance CBA Jump to: navigation, search Name: The California Biodiesel Alliance (CBA) Place: California Product: California-based non-profit corporation promoting...

  18. Planet Resource Recovery Inc formerly American Biodiesel Fuels...

    Open Energy Info (EERE)

    Planet Resource Recovery Inc formerly American Biodiesel Fuels Corp Jump to: navigation, search Name: Planet Resource Recovery, Inc. (formerly American Biodiesel Fuels Corp.)...

  19. Centre for Jatropha Promotion Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Jatropha Promotion Biodiesel Jump to: navigation, search Name: Centre for Jatropha Promotion & Biodiesel Place: Churu, Rajasthan, India Zip: 331001 Product: Indian-based non-profit...

  20. Biopar Producao de Biodiesel Parecis Ltda | Open Energy Information

    Open Energy Info (EERE)

    Biopar Producao de Biodiesel Parecis Ltda Jump to: navigation, search Name: Biopar Producao de Biodiesel Parecis Ltda Place: Nova Marilandia, Mato Grosso, Brazil Zip: 78415-000...

  1. EIA-22M, Monthly Biodiesel Production Survey Page 1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    22M, Monthly Biodiesel Production Survey Page 1 Instructions for the EIA-22M Monthly Biodiesel, Biojet, Biokerosene, and Renewable Diesel Report General Information Questions If...

  2. American Biodiesel and Community Fuels | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel and Community Fuels Jump to: navigation, search Name: American Biodiesel and Community Fuels Address: 336 Encinitas Blvd Place: Encinitas, California Zip: 92024 Region:...

  3. Biodiesel Effects on Diesel Particle Filter Performance: Milestone Report

    SciTech Connect (OSTI)

    Williams, A.; McCormick, R. L.; Hayes, R.; Ireland, J.

    2006-03-01

    Research results on the performance of biodiesel and biodiesel blends with ultra-low sulfur diesel (ULSD) and a diesel particle filter (DPF).

  4. Evaluation of Biodiesel Fuels from Supercritical Fluid Processing...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Biodiesel Fuels from Supercritical Fluid Processing with the Advanced Distillation Curve Method Evaluation of Biodiesel Fuels from Supercritical Fluid Processing with the Advanced ...

  5. Vehicle Technologies Office: Improving Biodiesel and Other Fuels...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Improving Biodiesel and Other Fuels' Quality Vehicle Technologies Office: Improving Biodiesel and Other Fuels' Quality For biofuels to succeed in the marketplace, they must be easy ...

  6. Biodiesel Quality in the United States | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Quality in the United States Biodiesel Quality in the United States Poster presentaltion ... More Documents & Publications Effect of Biodiesel Blends on NOx Emissions Diesel Injection ...

  7. Table 3. U.S. Inputs to biodiesel production

    U.S. Energy Information Administration (EIA) Indexed Site

    U.S. Inputs to biodiesel production" "million pounds" ,"Feedstock inputs" ,"Vegetable ... Administration, Form EIA-22M ""Monthly Biodiesel Production Survey""" "U.S. Energy ...

  8. Emission Performance of Modern Diesel Engines Fueled with Biodiesel...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Performance of Modern Diesel Engines Fueled with Biodiesel Emission Performance of Modern Diesel Engines Fueled with Biodiesel This study presents full quantification of ...

  9. Comprehensive Assessment of the Emissions from the Use of Biodiesel...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Comprehensive Assessment of the Emissions from the Use of Biodiesel in California Comprehensive Assessment of the Emissions from the Use of Biodiesel in California Overview of a ...

  10. Effect of Jatropha based Biodiesel, on Engine Hardware Reliability...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Jatropha based Biodiesel, on Engine Hardware Reliability, Emission and Performance Effect of Jatropha based Biodiesel, on Engine Hardware Reliability, Emission and Performance ...

  11. Impacts of Biodiesel on Emission Control Devices | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Biodiesel on Emission Control Devices Impacts of Biodiesel on Emission Control Devices Presentation given at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) ...

  12. Development and Validation of a Reduced Mechanism for Biodiesel...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    a Reduced Mechanism for Biodiesel Surrogates for Compression Ignition Engine Applications Development and Validation of a Reduced Mechanism for Biodiesel Surrogates for ...

  13. Impact of Biodiesel on Ash Emissions and Lubricant Properties...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Biodiesel on Ash Emissions and Lubricant Properties Affecting Fuel Economy and Engine Wear Impact of Biodiesel on Ash Emissions and Lubricant Properties Affecting Fuel Economy and ...

  14. Impacts of Rail Pressure and Biodiesel Composition on Soot Nanostructu...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Rail Pressure and Biodiesel Composition on Soot Nanostructure Impacts of Rail Pressure and Biodiesel Composition on Soot Nanostructure Fractal dimensions of particle aggregates and ...

  15. A Reduced Mechanism for Biodiesel Surrogates with Low Temperature...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Reduced Mechanism for Biodiesel Surrogates with Low Temperature Chemistry Title A Reduced Mechanism for Biodiesel Surrogates with Low Temperature Chemistry Publication Type...

  16. Seattle Biodiesel aka Seattle BioFuels | Open Energy Information

    Open Energy Info (EERE)

    Seattle Biodiesel aka Seattle BioFuels Jump to: navigation, search Name: Seattle Biodiesel (aka Seattle BioFuels) Place: Seattle, Washington Sector: Renewable Energy Product:...

  17. Biodiesel research progress 1992-1997

    SciTech Connect (OSTI)

    Tyson, K.S.

    1998-04-01

    The US Department of Energy (DOE) Office of Fuels Development began evaluating the potential of various alternative fuels, including biodiesel, as replacement fuels for traditional transportation fuels. Biodiesel is derived from a variety of biological materials from waste vegetable grease to soybean oil. This alkyl ester could be used as a replacement, blend, or additive to diesel fuel. This document is a comprehensive summary of relevant biodiesel and biodiesel-related research, development demonstration, and commercialization projects completed and/or started in the US between 1992 and 1997. It was designed for use as a reference tool to the evaluating biodiesel`s potential as a clean-burning alternative motor fuel. It encompasses, federally, academically, and privately funded projects. Research projects are presented under the following topical sections: Production; Fuel characteristics; Engine data; Regulatory and legislative activities; Commercialization activities; Economics and environment; and Outreach and education.

  18. Biodiesel - Combustion Energy Frontier Research Center

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Biodiesel Biodiesel Goals Develop accurate multi-scale models and experimental methods for quantitative combustion modeling of methyl esters and biodiesels at current and future engine conditions. Deliverables Obtain new experiment data of elementary reaction rates, ignition delay times, extinction limits, and speciation in broad temperature and pressure ranges. Develop quantum computational schemes for chemically accurate prediction of elementary reaction rates, activation energies, and bond

  19. Blue Sun Biodiesel LLC | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel LLC Jump to: navigation, search Logo: Blue Sun Energy, Inc. Name: Blue Sun Energy, Inc. Address: 14143 Denver West Parkway Place: Golden, Colorado Zip: 80401 Region:...

  20. Biodiesel Solutions Inc | Open Energy Information

    Open Energy Info (EERE)

    Solutions Inc Jump to: navigation, search Name: Biodiesel Solutions Inc Place: Sparks, Nevada Zip: 89431 Product: Designs and manufactures processing equipment and accessories to...

  1. Biodiesel Technologies Inc BT | Open Energy Information

    Open Energy Info (EERE)

    BT Jump to: navigation, search Name: Biodiesel Technologies Inc (BT) Place: Syracuse, New York Zip: 13066 Product: A technology oriented company which has developed a continuous...

  2. Biodiesel ASTM Update and Future Technical Needs

    Broader source: Energy.gov [DOE]

    Latest ASTM fuel specifications on biodiesel blends are summarized as well as future needs for improved fuel quality, process quality controls, and new performance testing procedures.

  3. WSF Biodiesel Demonstration Project Final Report

    SciTech Connect (OSTI)

    Washington State University; University of Idaho; The Glosten Associates, Inc.; Imperium Renewables, Inc.

    2009-04-30

    In 2004, WSF canceled a biodiesel fuel test because of “product quality issues” that caused the fuel purifiers to clog. The cancelation of this test and the poor results negatively impacted the use of biodiesel in marine application in the Pacific Northwest. In 2006, The U.S. Department of Energy awarded the Puget Sound Clean Air Agency a grant to manage a scientific study investigating appropriate fuel specifications for biodiesel, fuel handling procedures and to conduct a fuel test using biodiesel fuels in WSF operations. The Agency put together a project team comprised of experts in fields of biodiesel research and analysis, biodiesel production, marine engineering and WSF personnel. The team reviewed biodiesel technical papers, reviewed the 2004 fuel test results, designed a fuel test plan and provided technical assistance during the test. The research reviewed the available information on the 2004 fuel test and conducted mock laboratory experiments, but was not able to determine why the fuel filters clogged. The team then conducted a literature review and designed a fuel test plan. The team implemented a controlled introduction of biodiesel fuels to the test vessels while monitoring the environmental conditions on the vessels and checking fuel quality throughout the fuel distribution system. The fuel test was conducted on the same three vessels that participated in the canceled 2004 test using the same ferry routes. Each vessel used biodiesel produced from a different feedstock (i.e. soy, canola and yellow grease). The vessels all ran on ultra low sulfur diesel blended with biodiesel. The percentage of biodiesel was incrementally raised form from 5 to 20 percent. Once the vessels reached the 20 percent level, they continued at this blend ratio for the remainder of the test. Fuel samples were taken from the fuel manufacturer, during fueling operations and at several points onboard each vessel. WSF Engineers monitored the performance of the fuel systems and

  4. Alternative Fuels Data Center: Biodiesel Offers an Easy Alternative for

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Fleets Biodiesel Offers an Easy Alternative for Fleets to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Offers an Easy Alternative for Fleets on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Offers an Easy Alternative for Fleets on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Offers an Easy Alternative for Fleets on Google Bookmark Alternative Fuels Data Center: Biodiesel Offers an Easy Alternative for Fleets on Delicious Rank Alternative Fuels

  5. Alternative Fuels Data Center: Biodiesel Codes, Standards, and Safety

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Codes, Standards, and Safety to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Codes, Standards, and Safety on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Codes, Standards, and Safety on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Codes, Standards, and Safety on Google Bookmark Alternative Fuels Data Center: Biodiesel Codes, Standards, and Safety on Delicious Rank Alternative Fuels Data Center: Biodiesel Codes, Standards, and Safety on Digg Find

  6. Alternative Fuels Data Center: Biodiesel Fueling Station Locations

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Fueling Station Locations to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Digg Find More places to

  7. Alternative Fuels Data Center: Federal Laws and Incentives for Biodiesel

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Biodiesel Printable Version Share this resource Send a link to Alternative Fuels Data Center: Federal Laws and Incentives for Biodiesel to someone by E-mail Share Alternative Fuels Data Center: Federal Laws and Incentives for Biodiesel on Facebook Tweet about Alternative Fuels Data Center: Federal Laws and Incentives for Biodiesel on Twitter Bookmark Alternative Fuels Data Center: Federal Laws and Incentives for Biodiesel on Google Bookmark Alternative Fuels Data Center: Federal Laws and

  8. Impact of Biodiesel Impurities on the Performance and Durability of DOC, DPF and SCR Technologies

    SciTech Connect (OSTI)

    Williams, A.; McCormick, R.; Luecke, J.; Brezny, R.; Geisselmann, A.; Voss, K.; Hallstrom, K.; Leustek, M.; Parsons, J.; Abi-Akar, H.

    2011-06-01

    It is estimated that operating continuously on a B20 fuel containing the current allowable ASTM specification limits for metal impurities in biodiesel could result in a doubling of ash exposure relative to lube-oil derived ash. The purpose of this study was to determine if a fuel containing metals at the ASTM limits could cause adverse impacts on the performance and durability of diesel emission control systems. An accelerated durability test method was developed to determine the potential impact of these biodiesel impurities. The test program included engine testing with multiple DPF substrate types as well as DOC and SCR catalysts. The results showed no significant degradation in the thermo-mechanical properties of cordierite, aluminum titanate, or silicon carbide DPFs after exposure to 150,000 mile equivalent biodiesel ash and thermal aging. However, exposure of a cordierite DPF to 435,000 mile equivalent aging resulted in a 69% decrease in the thermal shock resistance parameter. It is estimated that the additional ash from 150,000 miles of biodiesel use would also result in a moderate increases in exhaust backpressure for a DPF. A decrease in DOC activity was seen after exposure to 150,000 mile equivalent aging, resulting in higher HC slip and a reduction in NO{sub 2} formation. The metal-zeolite SCR catalyst experienced a slight loss in activity after exposure to 435,000 mile equivalent aging. This catalyst, placed downstream of the DPF, showed a 5% reduction in overall NOx conversion activity over the HDDT test cycle.

  9. Biodiesel 2014: FAME and Misfortune?

    U.S. Energy Information Administration (EIA) Indexed Site

    Biodiesel 2014: FAME and Misfortune? William Woebkenberg - US Fuels Technical and Regulatory Affairs Mercedes-Benz Research & Development North America July10, 2014 Page 2 Daimler and Diesel: A Tradition over 75 Years in the Making Diesel passenger cars are a part of the Daimler heritage dating back to 1936, with the introduction of the 260D. There have been Mercedes-Benz diesel passenger cars in every decade since. Diesel is not just a powertrain option, it is tradition. Page 3 Diesel fuels

  10. Enterprise converting buses to biodiesel

    Broader source: Energy.gov [DOE]

    Rental car customers may be able to breathe a little easier during their next trip to the airport. Alamo Rent A Car, Enterprise Rent-A-Car, and National Car Rental, all brands operated by the subsidiaries of Enterprise Holdings, are converting their airport shuttle buses to run on biodiesel fuel. The move is a good one for the environment, and will ultimately reduce the company’s carbon emissions. “We are saving 420,000 gallons of petroleum diesel,”  says Lee Broughton, director of corporate identity and sustainability for Enterprise Holdings.    

  11. Recent Research to Address Technical Barriers to Increased Use of Biodiesel

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    | Department of Energy 832.91 KB) More Documents & Publications Biodiesel ASTM Update and Future Technical Needs Biodiesel Research Update Biodiesel Progress: ASTM Specifications and 2nd Generation Biodiesel

  12. Empirical Study of the Stability of Biodiesel and Biodiesel Blends: Milestone Report

    SciTech Connect (OSTI)

    McCormick, R. L.; Westbrook, S. R.

    2007-05-01

    The objective of this work was to develop a database that supports specific proposals for a stability test and specification for biodiesel and biodiesel blends. B100 samples from 19 biodiesel producers were obtained in December of 2005 and January of 2006 and tested for stability. Eight of these samples were then selected for additional study, including long-term storage tests and blending at 5% and 20% with a number of ultra-low sulfur diesel fuels.

  13. Biodiesel and Other Renewable Diesel Fuels

    SciTech Connect (OSTI)

    Not Available

    2006-11-01

    Present federal tax incentives apply to certain types of biomass-derived diesel fuels, which in energy policy and tax laws are described either as renewable diesel or biodiesel. To understand the distinctions between these diesel types it is necessary to understand the technologies used to produce them and the properties of the resulting products. This fact sheet contains definitions of renewable and biodiesel and discusses the processes used to convert biomass to diesel fuel and the properties of biodiesel and renewable diesel fuels.

  14. Biodiesel Technologies Inc BTI | Open Energy Information

    Open Energy Info (EERE)

    BTI Jump to: navigation, search Name: Biodiesel Technologies Inc (BTI) Place: Lonodn, United Kingdom Zip: W4 5YA Product: Owns the license to a process enabling the continuous...

  15. Biodiesel Filling Stations UK | Open Energy Information

    Open Energy Info (EERE)

    Filling Stations UK Jump to: navigation, search Name: Biodiesel Filling Stations UK Place: United Kingdom Product: A website providing a list of places in the UK where people can...

  16. Physical properties of bio-diesel & Implications for use of bio-diesel in diesel engines

    SciTech Connect (OSTI)

    Chakravarthy, Veerathu K; McFarlane, Joanna; Daw, C Stuart; Ra, Youngchul; Griffin, Jelani K

    2008-01-01

    In this study we identify components of a typical biodiesel fuel and estimate both their individual and mixed thermo-physical and transport properties. We then use the estimated mixture properties in computational simulations to gauge the extent to which combustion is modified when biodiesel is substituted for conventional diesel fuel. Our simulation studies included both regular diesel combustion (DI) and premixed charge compression ignition (PCCI). Preliminary results indicate that biodiesel ignition is significantly delayed due to slower liquid evaporation, with the effects being more pronounced for DI than PCCI. The lower vapor pressure and higher liquid heat capacity of biodiesel are two key contributors to this slower rate of evaporation. Other physical properties are more similar between the two fuels, and their impacts are not clearly evident in the present study. Future studies of diesel combustion sensitivity to both physical and chemical properties of biodiesel are suggested.

  17. Biodiesel Basics (Fact Sheet), Clean Cities, Energy Efficiency...

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    ... Can I use straight vegeta- ble oil in my diesel engine? No, straight vegetable oil is not biodiesel and is not a legal motor fuel. It doesn't meet biodiesel fuel specifications or ...

  18. Campa Biodiesel GmbH Co KG | Open Energy Information

    Open Energy Info (EERE)

    GmbH Co KG Jump to: navigation, search Name: Campa-Biodiesel GmbH & Co. KG Place: Ochsenfurt, Bavaria, Germany Zip: 97199 Product: Campa Biodiesel is a producer and marketer of...

  19. BullDog BioDiesel | Open Energy Information

    Open Energy Info (EERE)

    BullDog BioDiesel Jump to: navigation, search Name: BullDog BioDiesel Place: Ellenwood, Georgia Zip: 30294 Product: BullDog operates a 68.2mLpa (12m gallon) capacity,...

  20. DPF Performance with Biodiesel Blends | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Performance with Biodiesel Blends DPF Performance with Biodiesel Blends Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE ...

  1. Table 2. U.S. Biodiesel production, sales, and stocks

    U.S. Energy Information Administration (EIA) Indexed Site

    U.S. Biodiesel production, sales, and stocks" "million gallons" "Period","B100 production",,"Sales of B100",,"Sales of B100 included in biodiesel blends",,"Ending stocks of ...

  2. Impact of Biodiesel Metals on the Performance and Durability...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Metals on the Performance and Durability of DOC and DPF Technologies Impact of Biodiesel ... and the Role of the DOC Impact of Biodiesel-Based Na on the Selective Catalytic ...

  3. GreenHunter Biodiesel Refinery Grand Opening | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    GreenHunter Biodiesel Refinery Grand Opening GreenHunter Biodiesel Refinery Grand Opening June 2, 2008 - 12:51pm Addthis Remarks as Prepared for (Acting) Deputy Secretary Kupfer ...

  4. Life cycle inventory of biodiesel and petroleum diesel for use...

    Office of Scientific and Technical Information (OSTI)

    Biodiesel is made by chemically combining any natural oil or fat with an alcohol such as ... European biodiesel is made predominantly from rapeseed oil (a cousin of canola oil). In ...

  5. Impact of Biodiesel on Fuel System Component Durability

    SciTech Connect (OSTI)

    Terry, B.

    2005-09-01

    A study of the effects of biodiesel blends on fuel system components and the physical characteristics of elastomer materials.

  6. Biodiesel Vehicle and Infrastructure Codes and Standards Citations (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-07-01

    This document lists codes and standards typically used for U.S. biodiesel vehicle and infrastructure projects.

  7. Biodiesel's Enabling Characteristics in Attaining Low Temperature Diesel Combustion

    Broader source: Energy.gov [DOE]

    Discusses reasons and physical significance of cool-flame behavior of biodiesel on improving low temperature diesel combustion

  8. Emission Performance of Modern Diesel Engines Fueled with Biodiesel

    Broader source: Energy.gov [DOE]

    This study presents full quantification of biodiesel's impact on emissions and fuel economy with the inclusion of DPF regeneration events.

  9. Emissions From Various Biodiesel Sources Compared to a Range of Diesel Fuels in DPF Equipped Diesel Engines

    SciTech Connect (OSTI)

    Williams, A.; Burton, J.; Christensen, E.; McCormick, R. L.; Tester, J.

    2011-01-01

    The purpose of this study was to measure the impact of various sources of petroleum-based and bio-based diesel fuels on regulated emissions and fuel economy in diesel particulate filter (DPF) equipped diesel engines. Two model year 2008 diesel engines were tested with nine fuels including a certification ultra-low sulfur diesel (ULSD), local ULSD, high aromatic ULSD, low aromatic ULSD, and twenty percent blends of biodiesel derived from algae, camelina, soy, tallow, and yellow grease. Regulated emissions were measured over the heavy duty diesel transient test cycle. Measurements were also made of DPF-out particle size distribution and total particle count from a 13-mode steady state test using a fast mobility particle sizer. Test engines were a 2008 Cummins ISB and a 2008 International Maxx Force 10, both equipped with actively regenerated DPFs. Fuel consumption was roughly 2% greater over the transient test cycle for the B20 blends versus certification ULSD in both engines, consistent with the slightly lower energy content of biodiesel. Unlike studies conducted on older model engines, these engines equipped with diesel oxidation catalysts and DPFs showed small or no measurable fuel effect on the tailpipe emissions of total hydrocarbons (THC), carbon monoxide (CO) and particulate matter (PM). No differences in particle size distribution or total particle count were seen in a comparison of certification ULSD and B20 soy, with the exception of engine idling conditions where B20 produced a small reduction in the number of nucleation mode particles. In the Cummins engine, B20 prepared from algae, camelina, soy, and tallow resulted in an approximately 2.5% increase in nitrogen oxides (NO{sub x}) compared to the base fuel. The International engine demonstrated a higher degree of variability for NO{sub x} emissions, and fuel effects could not be resolved (p > 0.05). The group of petroleum diesel test fuels produced a range of NO{sub x} emissions very similar to that

  10. Unusual magnetoresistance in cubic B20 Fe0.85Co0.15Si chiral magnets

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Huang, S. X.; Chen, Fei; Kang, Jian; Zang, Jiadong; Shu, G. J.; Chou, F. C.; Chien, C. L.

    2016-06-24

    The B20 chiral magnets with broken inversion symmetry and C4 rotation symmetry have attracted much attention. The broken inversion symmetry leads to the Dzyaloshinskii–Moriya that gives rise to the helical and Skyrmion states.Wereport the unusual magnetoresistance (MR) of B20 chiral magnet Fe0.85Co0.15Si that directly reveals the broken C4 rotation symmetry and shows the anisotropic scattering by Skyrmions with respect to the current directions. The intimacy between unusual MR and broken symmetry is well confirmed by theoretically studying an effective Hamiltonian with spin–orbit coupling. In conclusion, the unusual MR serves as a transport signature for the Skyrmion phase.

  11. Acute aquatic toxicity of biodiesel fuels

    SciTech Connect (OSTI)

    Wright, B.; Haws, R.; Little, D.; Reese, D.; Peterson, C.; Moeller, G.

    1995-12-31

    This study develops data on the acute aquatic toxicity of selected biodiesel fuels which may become subject to environmental effects test regulations under the US Toxic Substances Control Act (TSCA). The test substances are Rape Methyl Ester (RME), Rape Ethyl Ester (REE), Methyl Soyate (MS), a biodiesel mixture of 20% REE and 80% Diesel, a biodiesel mixture of 50% REE and diesel, and a reference substance of Phillips D-2 Reference Diesel. The test procedure follows the Daphnid Acute Toxicity Test outlined in 40 CFR {section} 797.1300 of the TSCA regulations. Daphnia Magna are exposed to the test substance in a flow-through system consisting of a mixing chamber, a proportional diluter, and duplicate test chambers. Novel system modifications are described that accommodate the testing of oil-based test substances with Daphnia. The acute aquatic toxicity is estimated by an EC50, an effective concentration producing immobility in 50% of the test specimen.

  12. Biodiesel Basics (Spanish Version); Clean Cities, Energy Efficiency & Renewable Energy (EERE)

    SciTech Connect (OSTI)

    2015-08-01

    This Spanish-language fact sheet provides a brief introduction to biodiesel, including a discussion of biodiesel blends, which blends are best for which vehicles, where to buy biodiesel, how biodiesel compares to diesel fuel in terms of performance, how biodiesel performs in cold weather, whether biodiesel use will plug vehicle filters, how long-term biodiesel use may affect engines, biodiesel fuel standards, and whether biodiesel burns cleaner than diesel fuel. The fact sheet also dismisses the use of vegetable oil as a motor fuel.

  13. On-Road and In-Laboratory Testing to Demonstrate Effects of ULSD, B20 and B99 on a Retrofit Urea-SCR Aftertreatment System

    SciTech Connect (OSTI)

    Walkowicz, K.; Na, K.; Robertson, W.; Sahay, K.; Bogdanoff, M.; Weaver, C.; Carlson, R.

    2010-03-01

    Emissions changes for a 2005 International tractor operating on low-sulfur diesel and biodiesel in Santa Monica were measured to demonstrate performance and impacts of selective catalytic reduction.

  14. WI Biodiesel Blending Progream Final Report

    SciTech Connect (OSTI)

    Redmond, Maria E; Levy, Megan M

    2013-04-01

    The Wisconsin State Energy Office?¢????s (SEO) primary mission is to implement cost?¢???effective, reliable, balanced, and environmentally?¢???friendly clean energy projects. To support this mission the Wisconsin Biodiesel Blending Program was created to financially support the installation infrastructure necessary to directly sustain biodiesel blending and distribution at petroleum terminal facilities throughout Wisconsin. The SEO secured a federal directed award of $600,000 over 2.25 years. With these funds, the SEO supported the construction of inline biodiesel blending facilities at two petroleum terminals in Wisconsin. The Federal funding provided through the state provided a little less than half of the necessary investment to construct the terminals, with the balance put forth by the partners. Wisconsin is now home to two new biodiesel blending terminals. Fusion Renewables on Jones Island (in the City of Milwaukee) will offer a B100 blend to both bulk and retail customers. CITGO is currently providing a B5 blend to all customers at their Granville, WI terminal north of the City of Milwaukee.

  15. Biodiesel Production Technology: August 2002--January 2004

    SciTech Connect (OSTI)

    Van Gerpen, J.; Shanks,B.; Pruszko,R.; Clements, D.; Knothe, G.

    2004-07-01

    Biodiesel is an alternative fuel for diesel engines that is gaining attention in the United States after reaching a considerable level of success in Europe. The purpose of this book is to describe and explain the process and issues involved in producing this fuel.

  16. Messiah College Biodiesel Fuel Generation Project Final Technical Report

    SciTech Connect (OSTI)

    Zummo, Michael M; Munson, J; Derr, A; Zemple, T; Bray, S; Studer, B; Miller, J; Beckler, J; Hahn, A; Martinez, P; Herndon, B; Lee, T; Newswanger, T; Wassall, M

    2012-03-30

    Many obvious and significant concerns arise when considering the concept of small-scale biodiesel production. Does the fuel produced meet the stringent requirements set by the commercial biodiesel industry? Is the process safe? How are small-scale producers collecting and transporting waste vegetable oil? How is waste from the biodiesel production process handled by small-scale producers? These concerns and many others were the focus of the research preformed in the Messiah College Biodiesel Fuel Generation project over the last three years. This project was a unique research program in which undergraduate engineering students at Messiah College set out to research the feasibility of small-biodiesel production for application on a campus of approximately 3000 students. This Department of Energy (DOE) funded research program developed out of almost a decade of small-scale biodiesel research and development work performed by students at Messiah College. Over the course of the last three years the research team focused on four key areas related to small-scale biodiesel production: Quality Testing and Assurance, Process and Processor Research, Process and Processor Development, and Community Education. The objectives for the Messiah College Biodiesel Fuel Generation Project included the following: 1. Preparing a laboratory facility for the development and optimization of processors and processes, ASTM quality assurance, and performance testing of biodiesel fuels. 2. Developing scalable processor and process designs suitable for ASTM certifiable small-scale biodiesel production, with the goals of cost reduction and increased quality. 3. Conduct research into biodiesel process improvement and cost optimization using various biodiesel feedstocks and production ingredients.

  17. Alternative Fuels Data Center: Biodiesel Fuels Education in Alabama

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Through AIDB's Project Green, students are producing biodiesel from waste vegetable oil, ... identifying sources of waste vegetable oil and collecting it from restaurants, ...

  18. Biodiesel Handling and Use Guide | Open Energy Information

    Open Energy Info (EERE)

    Handling and Use Guide Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Biodiesel Handling and Use Guide AgencyCompany Organization: National Renewable Energy...

  19. Mid America Biodiesel LLC MAB | Open Energy Information

    Open Energy Info (EERE)

    LLC MAB Jump to: navigation, search Name: Mid-America Biodiesel, LLC (MAB) Place: Enfield, Illinois Zip: 62835-2328 Product: Illinois-based company producing biological products....

  20. Investigation and Optimization of Biodiesel Chemistry for HCCI...

    Office of Scientific and Technical Information (OSTI)

    IODINE NUMBER; NITROGEN; OPTIMIZATION; ORNL; OXYGEN; POWER RANGE; RESOLUTION HCCI; biofuels; biodiesel; statistics; optimization Word Cloud More Like This Full Text Conferences ...

  1. Investigation and Optimization of Biodiesel Chemistry for HCCI...

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Language: English Subject: 33 ADVANCED PROPULSION SYSTEMS HCCI; biofuels; biodiesel; statistics; optimization Word Cloud More Like This Full ...

  2. Washington: State Ferries Run Cleaner With Biodiesel | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Addthis Related Articles Auto and passenger ferries operated by the Washington State ... SEP Success Story: Washington State Becomes Largest Public Consumer of Biodiesel Auto and ...

  3. Effect of Biodiesel Blends on Diesel Particulate Filter Performance

    SciTech Connect (OSTI)

    Williams, A.; McCormick, R. L.; Hayes, R. R.; Ireland, J.; Fang, H. L.

    2006-11-01

    Presents results of tests of ultra-low sulfur diesel blended with soy-biodiesel at 5 percent using a Cummins ISB engine with a diesel particulate filter.

  4. Biodiesel Utilization: Update on Recent Analytical Techniques (Presentation)

    SciTech Connect (OSTI)

    Alleman, T. L.; Fouts, L.; Luecke, J.; Thornton, M.; McAlpin, C.

    2009-05-01

    To understand and increase the use of biodiesel, analytical methods need to be shared and compared to ensure that accurate data are gathered on this complex fuel.

  5. Biodiesel Handling and Use Guide: Fourth Edition (Revised)

    SciTech Connect (OSTI)

    Not Available

    2009-01-01

    Intended for those who blend, distribute, and use biodiesel and its blends, this guide contains procedures for handling and using these fuels.

  6. Brown Grease to Biodiesel Demonstration Project Report (Technical...

    Office of Scientific and Technical Information (OSTI)

    ... Country of Publication: United States Language: English Subject: 09 BIOMASS FUELS Brown Grease; Trap Waste; Biodiesel; Biofuel; Wastewater; Anaerobic Digestion Word Cloud More Like ...

  7. Coolidge Petrosun Optimum Biodiesel Plant | Open Energy Information

    Open Energy Info (EERE)

    Name: Coolidge PetrosunOptimum Biodiesel Plant Place: Coolidge, Arizona Sector: Biofuels Product: Joint venture between PetroSun Biofuels (a wholly-owned subsidiary of...

  8. Alternative Fuels Data Center: Alabama City Leads With Biodiesel...

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    ... GE Showcases Innovation in Alternative Fuel Vehicles July 15, 2015 Photo of a locomotive engine carrying passenger cars. New Hampshire Railway Makes Tracks With Biodiesel June 27, ...

  9. Alternative Fuels Data Center: Seattle Bakery Delivers With Biodiesel...

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    ... GE Showcases Innovation in Alternative Fuel Vehicles July 15, 2015 Photo of a locomotive engine carrying passenger cars. New Hampshire Railway Makes Tracks With Biodiesel June 27, ...

  10. Biodiesel Revs Up Its Applications | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Biodiesel also generates fewer lifecycle smog-forming and greenhouse gas emissions than petroleum diesel, reducing air pollution and contributions to climate change. For all of ...

  11. b20.pdf

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Buildings Energy Consumption Survey: Building Characteristics Tables 69 Electricity Natural Gas Fuel Oil ... All Buildings with Space Heating All Buildings Energy End Uses ...

  12. b20.xls

    U.S. Energy Information Administration (EIA) Indexed Site

    64,783 45,144 10,960 1,958 1,951 2,609 2,161 Building Floorspace (Square Feet) 1,001 to 5,000 ................................... 6,789 5,613 916 Q Q N 223 5,001 to 10,000 ................................. 6,585 5,304 1,031 Q N Q Q 10,001 to 25,000 ............................... 11,535 9,098 1,732 383 Q Q Q 25,001 to 50,000 ............................... 8,668 5,807 1,837 355 Q Q Q 50,001 to 100,000 ............................. 9,057 6,218 1,739 273 337 Q Q 100,001 to 200,000

  13. Fast gas chromatographic separation of biodiesel.

    SciTech Connect (OSTI)

    Pauls, R. E.

    2011-05-01

    A high-speed gas chromatographic method has been developed to determine the FAME distribution of B100 biodiesel. The capillary column used in this work has dimensions of 20 m x 0.100 mm and is coated with a polyethylene glycol film. Analysis times are typically on the order of 4-5 min depending upon the composition of the B100. The application of this method to a variety of vegetable and animal derived B100 is demonstrated. Quantitative results obtained with this method were in close agreement with those obtained by a more conventional approach on a 100 m column. The method, coupled with solid-phase extraction, was also found suitable to determine the B100 content of biodiesel-diesel blends.

  14. Investigation of the Effects of Biodiesel-based Na on Emissions Control Components

    SciTech Connect (OSTI)

    Brookshear, D. William; Nguyen, Ke; Toops, Todd J; Bunting, Bruce G; Howe, Janet E

    2012-01-01

    A single-cylinder diesel engine was used to investigate the impact of biodiesel-based Na on emissions control components using specially blended 20% biodiesel fuel (B20). The emissions control components investigated were a diesel oxidation catalyst (DOC), a Cu-zeolite-based NH{sub 3}-SCR (selective catalytic reduction) catalyst, and a diesel particulate filter (DPF). Both light-duty vehicle, DOC-SCR-DPF, and heavy-duty vehicle, DOC-DPF-SCR, emissions control configurations were employed. The accelerated Na aging is achieved by introducing elevated Na levels in the fuel, to represent full useful life exposure, and periodically increasing the exhaust temperature to replicate DPF regeneration. To assess the validity of the implemented accelerated Na aging protocol, engine-aged lean NO{sub x} traps (LNTs), DOCs and DPFs are also evaluated. To fully characterize the impact on the catalytic activity the LNT, DOC and SCR catalysts were evaluated using a bench flow reactor. The evaluation of the aged DOC samples and LNT show little to no deactivation as a result of Na contamination. However, the SCR in the light-duty configuration (DOC-SCR-DPF) was severely affected by Na contamination, especially when NO was the only fed NO{sub x} source. In the heavy-duty configuration (DOC-DPF-SCR), no impact is observed in the SCR NO{sub x} reduction activity. Electron probe micro-analysis (EPMA) reveals that Na contamination on the LNT, DOC, and SCR samples is present throughout the length of the catalysts with a higher concentration on the washcoat surface. In both the long-term engine-aged DPF and the accelerated Na-aged DPFs, there is significant Na ash present in the upstream channels; however, in the engine-aged sample lube oil-based ash is the predominant constituent.

  15. Kinetic Modeling of Combustion Characteristics of Real Biodiesel Fuels

    SciTech Connect (OSTI)

    Naik, C V; Westbrook, C K

    2009-04-08

    Biodiesel fuels are of much interest today either for replacing or blending with conventional fuels for automotive applications. Predicting engine effects of using biodiesel fuel requires accurate understanding of the combustion characteristics of the fuel, which can be acquired through analysis using reliable detailed reaction mechanisms. Unlike gasoline or diesel that consists of hundreds of chemical compounds, biodiesel fuels contain only a limited number of compounds. Over 90% of the biodiesel fraction is composed of 5 unique long-chain C{sub 18} and C{sub 16} saturated and unsaturated methyl esters. This makes modeling of real biodiesel fuel possible without the need for a fuel surrogate. To this end, a detailed chemical kinetic mechanism has been developed for determining the combustion characteristics of a pure biodiesel (B100) fuel, applicable from low- to high-temperature oxidation regimes. This model has been built based on reaction rate rules established in previous studies at Lawrence Livermore National Laboratory. Computed results are compared with the few fundamental experimental data that exist for biodiesel fuel and its components. In addition, computed results have been compared with experimental data for other long-chain hydrocarbons that are similar in structure to the biodiesel components.

  16. Western Kentucky University Research Foundation Biodiesel Project

    SciTech Connect (OSTI)

    Pan, Wei-Ping; Cao, Yan

    2013-03-15

    Petroleum-based liquid hydrocarbons is exclusively major energy source in the transportation sector. Thus, it is the major CO{sub 2} source which is the associated with greenhouse effect. In the United States alone, petroleum consumption in the transportation sector approaches 13.8 million barrels per day (Mbbl/d). It is corresponding to a release of 0.53 gigatons of carbon per year (GtC/yr), which accounts for approximate 7.6 % of the current global release of CO{sub 2} from all of the fossil fuel usage (7 GtC/yr). For the long term, the conventional petroleum production is predicted to peak in as little as the next 10 years to as high as the next 50 years. Negative environmental consequences, the frequently roaring petroleum prices, increasing petroleum utilization and concerns about competitive supplies of petroleum have driven dramatic interest in producing alternative transportation fuels, such as electricity-based, hydrogen-based and bio-based transportation alternative fuels. Use of either of electricity-based or hydrogen-based alternative energy in the transportation sector is currently laden with technical and economical challenges. The current energy density of commercial batteries is 175 Wh/kg of battery. At a storage pressure of 680 atm, the lower heating value (LHV) of H{sub 2} is 1.32 kWh/liter. In contrast, the corresponding energy density for gasoline can reach as high as 8.88 kWh/liter. Furthermore, the convenience of using a liquid hydrocarbon fuel through the existing infrastructures is a big deterrent to replacement by both batteries and hydrogen. Biomass-derived ethanol and bio-diesel (biofuels) can be two promising and predominant U.S. alternative transportation fuels. Both their energy densities and physical properties are comparable to their relatives of petroleum-based gasoline and diesel, however, biofuels are significantly environmental-benign. Ethanol can be made from the sugar-based or starch-based biomass materials, which is easily

  17. Genomic Prospecting for Microbial Biodiesel Production

    SciTech Connect (OSTI)

    Lykidis, Athanasios; Lykidis, Athanasios; Ivanova, Natalia

    2008-03-20

    Biodiesel is defined as fatty acid mono-alkylesters and is produced from triacylglycerols. In the current article we provide an overview of the structure, diversity and regulation of the metabolic pathways leading to intracellular fatty acid and triacylglycerol accumulation in three types of organisms (bacteria, algae and fungi) of potential biotechnological interest and discuss possible intervention points to increase the cellular lipid content. The key steps that regulate carbon allocation and distribution in lipids include the formation of malonyl-CoA, the synthesis of fatty acids and their attachment onto the glycerol backbone, and the formation of triacylglycerols. The lipid biosynthetic genes and pathways are largely known for select model organisms. Comparative genomics allows the examination of these pathways in organisms of biotechnological interest and reveals the evolution of divergent and yet uncharacterized regulatory mechanisms. Utilization of microbial systems for triacylglycerol and fatty acid production is in its infancy; however, genomic information and technologies combined with synthetic biology concepts provide the opportunity to further exploit microbes for the competitive production of biodiesel.

  18. Biodiesel of South Florida LLC | Open Energy Information

    Open Energy Info (EERE)

    of South Florida LLC Jump to: navigation, search Name: Biodiesel of South Florida, LLC Place: Miami, Florida Zip: 33176 Product: Florida-based wholesale marketer of soy-based...

  19. Impacts of Rail Pressure and Biodiesel Composition on Soot Nanostructure

    Broader source: Energy.gov [DOE]

    Fractal dimensions of particle aggregates and the fringe lengths and fringe tortuosity within the primary soot particles has been assessed as functions of load, rail pressure, and biodiesel content.

  20. Washington State Becomes Largest Public Consumer of Biodiesel

    Broader source: Energy.gov [DOE]

    With a $165,000 Recovery Act loan, the state of Washington is advancing its efforts toward clean energy and is now the largest public consumer of biodiesel in the country.

  1. Fact #662: February 14, 2011 World Biodiesel Production

    Broader source: Energy.gov [DOE]

    Europe has been the dominant region for biodiesel production with increased production each year since 2005. North America has been a distant second led by the United States until 2009. In 2009, U...

  2. Brown Grease to Biodiesel Demonstration Project Report

    SciTech Connect (OSTI)

    San Francisco Public Utilities Commission; URS Corporation; Biofuels, Blackgold; Carollo Engineers

    2013-01-30

    Municipal wastewater treatment facilities have typically been limited to the role of accepting wastewater, treating it to required levels, and disposing of its treatment residuals. However, a new view is emerging which includes wastewater treatment facilities as regional resource recovery centers. This view is a direct result of increasingly stringent regulations, concerns over energy use, carbon footprint, and worldwide depletion of fossil fuel resources. Resources in wastewater include chemical and thermal energy, as well as nutrients, and water. A waste stream such as residual grease, which concentrates in the drainage from restaurants (referred to as Trap Waste), is a good example of a resource with an energy content that can be recovered for beneficial reuse. If left in wastewater, grease accumulates inside of the wastewater collection system and can lead to increased corrosion and pipe blockages that can cause wastewater overflows. Also, grease in wastewater that arrives at the treatment facility can impair the operation of preliminary treatment equipment and is only partly removed in the primary treatment process. In addition, residual grease increases the demand in treatment materials such as oxygen in the secondary treatment process. When disposed of in landfills, grease is likely to undergo anaerobic decay prior to landfill capping, resulting in the atmospheric release of methane, a greenhouse gas (GHG). This research project was therefore conceptualized and implemented by the San Francisco Public Utilities Commission (SFPUC) to test the feasibility of energy recovery from Trap Waste in the form of Biodiesel or Methane gas. The research goals are given below: To validate technology performance; To determine the costs and benefits [including economic, socioeconomic, and GHG emissions reduction] associated with co-locating this type of operation at a municipal wastewater treatment plant (WWTP); To develop a business case or model for replication of the

  3. Quantitative NMR Analysis of Partially Substituted Biodiesel Glycerols

    SciTech Connect (OSTI)

    Nagy, M.; Alleman, T. L.; Dyer, T.; Ragauskas, A. J.

    2009-01-01

    Phosphitylation of hydroxyl groups in biodiesel samples with 2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane followed by 31P-NMR analysis provides a rapid quantitative analytical technique for the determination of substitution patterns on partially esterified glycerols. The unique 31P-NMR chemical shift data was established with a series mono and di-substituted fatty acid esters of glycerol and then utilized to characterize an industrial sample of partially processed biodiesel.

  4. Biodiesel/Aquatic Species Project report, FY 1992

    SciTech Connect (OSTI)

    Brown, L.; Jarvis, E.; Dunahay, T.; Roessler, P.; Zeiler, K. ); Sprague, S. )

    1993-05-01

    The primary goal of the Biodiesel/Aquatic Species Project is to develop the technology for growing microalgae as a renewable biomass feedstock for the production of a diesel fuel substitute (biodiesel), thereby reducing the need for imported petroleum. Microalgae are of interest as a feedstock because of their high growth rates and tolerance to varying environmental conditions, and because the oils (lipids) they produce can be extracted and converted to substitute petroleum fuels such as biodiesel. Microalgae can be grown in arid and semi-arid regions with poor soil quality, and saline water from aquifers or the ocean can be used for growing microalgae. Biodiesel is an extremely attractive candidate to fulfill the need for a diesel fuel substitute. Biodiesel is a cleaner fuel than petroleum diesel; it is virtually free of sulfur, and emissions of hydrocarbons, carbon monoxide, and particulates during combustion are significantly reduced in comparison to emissions from petroleum diesel. Biodiesel provides essentially the same energy content and power output as petroleum-based diesel fuel.

  5. BioDiesel Content On-board monitoring | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    BioDiesel Content On-board monitoring BioDiesel Content On-board monitoring onboard fuel monitoring of fuel and biofuel qualities using an optical sensor for engine ...

  6. Biodiesel Effects on the Operation of U.S. Light Duty Tier 2...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Light Duty Tier 2 Engine and Aftertreatment Systems Biodiesel Effects on the Operation of ... More Documents & Publications Biodiesel Effects on the Operation of U.S. Light-Duty Tier 2 ...

  7. Biodiesel Effects on the Operation of U.S. Light-Duty Tier 2...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Light-Duty Tier 2 Engine and Aftertreatment Systems Biodiesel Effects on the Operation of ... More Documents & Publications Biodiesel Effects on the Operation of U.S. Light Duty Tier 2 ...

  8. Combining Biodiesel and EGR for Low-Temperature NOx and PM Reductions...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Biodiesel and EGR for Low-Temperature NOx and PM Reductions Combining Biodiesel and EGR for Low-Temperature NOx and PM Reductions Poster presentation at the 2007 Diesel ...

  9. System-Response Issues Imposed by Biodiesel in a Medium-Duty...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    System-Response Issues Imposed by Biodiesel in a Medium-Duty Diesel Engine System-Response Issues Imposed by Biodiesel in a Medium-Duty Diesel Engine The objective of the current ...

  10. Impact of Biodiesel-based Na on the Selective Catalytic Reduction...

    Office of Scientific and Technical Information (OSTI)

    of Biodiesel-based Na on the Selective Catalytic Reduction of NOx by NH3 Over Cu-zeolite Catalysts Citation Details In-Document Search Title: Impact of Biodiesel-based Na on the ...

  11. Fact #700: November 7, 2011 Biodiesel Consumption is on the Rise for 2011

    Office of Energy Efficiency and Renewable Energy (EERE)

    The U.S. Energy Information Administration began tracking biodiesel consumption in 2001. For the first few years biodiesel consumption remained relatively low – well under one thousand barrels per...

  12. Alternative Fuels Data Center: St. Louis Airport Relies on Biodiesel and

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Natural Gas Vehicles St. Louis Airport Relies on Biodiesel and Natural Gas Vehicles to someone by E-mail Share Alternative Fuels Data Center: St. Louis Airport Relies on Biodiesel and Natural Gas Vehicles on Facebook Tweet about Alternative Fuels Data Center: St. Louis Airport Relies on Biodiesel and Natural Gas Vehicles on Twitter Bookmark Alternative Fuels Data Center: St. Louis Airport Relies on Biodiesel and Natural Gas Vehicles on Google Bookmark Alternative Fuels Data Center: St. Louis

  13. Matrix Optimization for the MALDI-TOF-MS Analysis of Trace Biodiesel Components (Poster)

    SciTech Connect (OSTI)

    McAlpin, C. R.; Voorhees, K. J.; Alleman, T. L.; McCormick, R. L.

    2009-01-01

    Trace biodiesel components that could reduce the fuel's operability in cold weather are analyzed using MALDI-TOF mass spectrometry.

  14. Biodiesel Vehicle and Infrastructure Codes and Standards Chart (Revised) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-02-01

    This chart shows the SDOs responsible for leading the support and development of key codes and standards for biodiesel.

  15. System-Response Issues Imposed by Biodiesel in a Medium-Duty Diesel Engine

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    | Department of Energy System-Response Issues Imposed by Biodiesel in a Medium-Duty Diesel Engine System-Response Issues Imposed by Biodiesel in a Medium-Duty Diesel Engine The objective of the current research is to assess differences in NOx emissions between biodiesel and petroleum diesel fuels, resulting from fundamental issues and system-response issues. deer09_jacobs.pdf (775.62 KB) More Documents & Publications Biodiesel's Enabling Characteristics in Attaining Low Temperature

  16. Factors Affecting the Stability of Biodiesel Sold in the United States

    SciTech Connect (OSTI)

    McCormick, R. L.; Ratcliff, M.; Moens, L.; Lawrence, R.

    2006-01-01

    As part of a survey of biodiesel quality and stability in the United States, 27 biodiesel (B100) samples were collected from blenders and distributor nationwide. For this sample set, 85% met all of the requirements of the industry standard for biodiesel, ASTM D6751.

  17. Acute aquatic toxicity and biodegradation potential of biodiesel fuels

    SciTech Connect (OSTI)

    Haws, R.A.; Zhang, X.; Marshall, E.A.; Reese, D.L.; Peterson, C.L.; Moeller, G.

    1995-12-31

    Recent studies on the biodegradation potential and aquatic toxicity of biodiesel fuels are reviewed. Biodegradation data were obtained using the shaker flask method observing the appearance of CO{sub 2} and by observing the disappearance of test substance with gas chromatography. Additional BOD{sub 5} and COD data were obtained. The results indicate the ready biodegradability of biodiesel fuels as well as the enhanced co-metabolic biodegradation of biodiesel and petroleum diesel fuel mixtures. The study examined reference diesel, neat soy oil, neat rape oil, and the methyl and ethyl esters of these vegetable oils as well as various fuel blends. Acute toxicity tests on biodiesel fuels and blends were performed using Oncorhynchus mykiss (Rainbow Trout) in a static non-renewal system and in a proportional dilution flow replacement system. The study is intended to develop data on the acute aquatic toxicity of biodiesel fuels and blends under US EPA Good Laboratory Practice Standards. The test procedure is designed from the guidelines outlined in Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms and the Fish Acute Aquatic Toxicity Test guideline used to develop aquatic toxicity data for substances subject to environmental effects test regulations under TSCA. The acute aquatic toxicity is estimated by an LC50, a lethal concentration effecting mortality in 50% of the test population.

  18. Alabama Institute for Deaf and Blind Biodiesel Project Green

    SciTech Connect (OSTI)

    Edmiston, Jessica L

    2012-09-28

    Through extensive collaboration, Alabama Institute for Deaf and Blind (AIDB) is Alabama's first educational entity to initiate a biodiesel public education, student training and production program, Project Green. With state and national replication potential, Project Green benefits local businesses and city infrastructures within a 120-mile radius; provides alternative education to Alabama school systems and to schools for the deaf and blind in Appalachian States; trains students with sensory and/or multiple disabilities in the acquisition and production of biodiesel; and educates the external public on alternative fuels benefits.

  19. Mississippi State University Wins DOE and GM Challenge X 2008...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    fuels including B20 biodiesel, E85 ethanol, reformulated gasoline, and hydrogen. ... drive using a turbocharged direct-injection diesel engine fueled by B20 biodiesel. ...

  20. Experimental Studies for CPF and SCR Model, Control System, and OBD Development for Engines Using Diesel and Biodiesel Fuels

    SciTech Connect (OSTI)

    Johnson, John; Naber, Jeffrey; Parker, Gordon; Yang, Song-Lin; Stevens, Andrews; Pihl, Josh

    2013-04-30

    The research carried out on this project developed experimentally validated Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR) high‐fidelity models that served as the basis for the reduced order models used for internal state estimation. The high‐fidelity and reduced order/estimator codes were evaluated by the industrial partners with feedback to MTU that improved the codes. Ammonia, particulate matter (PM) mass retained, PM concentration, and NOX sensors were evaluated and used in conjunction with the estimator codes. The data collected from PM experiments were used to develop the PM kinetics using the high‐fidelity DPF code for both NO2 assisted oxidation and thermal oxidation for Ultra Low Sulfur Fuel (ULSF), and B10 and B20 biodiesel fuels. Nine SAE papers were presented and this technology transfer process should provide the basis for industry to improve the OBD and control of urea injection and fuel injection for active regeneration of the PM in the DPF using the computational techniques developed. This knowledge will provide industry the ability to reduce the emissions and fuel consumption from vehicles in the field. Four MS and three PhD Mechanical Engineering students were supported on this project and their thesis research provided them with expertise in experimental, modeling, and controls in aftertreatment systems.

  1. Process Intensification in Base-Catalyzed Biodiesel Production

    SciTech Connect (OSTI)

    McFarlane, Joanna; Birdwell Jr, Joseph F; Tsouris, Costas; Jennings, Hal L

    2008-01-01

    Biodiesel is considered a means to diversify our supply of transportation fuel, addressing the goal of reducing our dependence on oil. Recent interest has resulted in biodiesel manufacture becoming more widely undertaken by commercial enterprises that are interested in minimizing the cost of feedstock materials and waste production, as well as maximizing the efficiency of production. Various means to accelerate batch processing have been investigated. Oak Ridge National Laboratory has experience in developing process intensification methods for nuclear separations, and this paper will discuss how technologies developed for very different applications have been modified for continuous reaction/separation of biodiesel. In collaboration with an industrial partner, this work addresses the aspect of base-catalyzed biodiesel production that limits it to a slow batch process. In particular, we have found that interfacial mass transfer and phase separation control the transesterification process and have developed a continuous two-phase reactor for online production of a methyl ester and glycerol. Enhancing the mass transfer has additional benefits such as being able to use an alcohol-to-oil phase ratio closer to stoichiometric than in conventional processing, hence minimizing the amount of solvent that has to be recycled and reducing post-processing clean up costs. Various technical issues associated with the application of process intensification technology will be discussed, including scale-up from the laboratory to a pilot-scale undertaking.

  2. Coalition Cooperation Defines Roadmap for E85 and Biodiesel

    SciTech Connect (OSTI)

    Not Available

    2007-06-01

    This Clean Cities success story relates how Colorado's Colorado Biofuels Coalition was formed and provides guidance on forming other such coalitions. This Colorado's coalition sucessfully increase the number of fueling stations providing biofuels and has goals to the number even more. Plans also include assisting with financing infrastructure, making alternative fuels available to more fleets, and educating about E85 and biodiesel use.

  3. Detailed chemical kinetic oxidation mechanism for a biodiesel surrogate

    SciTech Connect (OSTI)

    Herbinet, Olivier; Pitz, William J.; Westbrook, Charles K.

    2008-08-15

    A detailed chemical kinetic mechanism has been developed and used to study the oxidation of methyl decanoate, a surrogate for biodiesel fuels. This model has been built by following the rules established by Curran and co-workers for the oxidation of n-heptane and it includes all the reactions known to be pertinent to both low and high temperatures. Computed results have been compared with methyl decanoate experiments in an engine and oxidation of rapeseed oil methyl esters in a jet-stirred reactor. An important feature of this mechanism is its ability to reproduce the early formation of carbon dioxide that is unique to biofuels and due to the presence of the ester group in the reactant. The model also predicts ignition delay times and OH profiles very close to observed values in shock tube experiments fueled by n-decane. These model capabilities indicate that large n-alkanes can be good surrogates for large methyl esters and biodiesel fuels to predict overall reactivity, but some kinetic details, including early CO{sub 2} production from biodiesel fuels, can be predicted only by a detailed kinetic mechanism for a true methyl ester fuel. The present methyl decanoate mechanism provides a realistic kinetic tool for simulation of biodiesel fuels. (author)

  4. Detailed chemical kinetic oxidation mechanism for a biodiesel surrogate

    SciTech Connect (OSTI)

    Herbinet, O; Pitz, W J; Westbrook, C K

    2007-09-17

    A detailed chemical kinetic mechanism has been developed and used to study the oxidation of methyl decanoate, a surrogate for biodiesel fuels. This model has been built by following the rules established by Curran et al. for the oxidation of n-heptane and it includes all the reactions known to be pertinent to both low and high temperatures. Computed results have been compared with methyl decanoate experiments in an engine and oxidation of rapeseed oil methyl esters in a jet stirred reactor. An important feature of this mechanism is its ability to reproduce the early formation of carbon dioxide that is unique to biofuels and due to the presence of the ester group in the reactant. The model also predicts ignition delay times and OH profiles very close to observed values in shock tube experiments fueled by n-decane. These model capabilities indicate that large n-alkanes can be good surrogates for large methyl esters and biodiesel fuels to predict overall reactivity, but some kinetic details, including early CO2 production from biodiesel fuels, can be predicted only by a detailed kinetic mechanism for a true methyl ester fuel. The present methyl decanoate mechanism provides a realistic kinetic tool for simulation of biodiesel fuels.

  5. Detailed chemical kinetic oxidation mechanism for a biodiesel surrogate

    SciTech Connect (OSTI)

    Herbinet, O; Pitz, W J; Westbrook, C K

    2007-09-20

    A detailed chemical kinetic mechanism has been developed and used to study the oxidation of methyl decanoate, a surrogate for biodiesel fuels. This model has been built by following the rules established by Curran et al. for the oxidation of n-heptane and it includes all the reactions known to be pertinent to both low and high temperatures. Computed results have been compared with methyl decanoate experiments in an engine and oxidation of rapeseed oil methyl esters in a jet stirred reactor. An important feature of this mechanism is its ability to reproduce the early formation of carbon dioxide that is unique to biofuels and due to the presence of the ester group in the reactant. The model also predicts ignition delay times and OH profiles very close to observed values in shock tube experiments fueled by n-decane. These model capabilities indicate that large n-alkanes can be good surrogates for large methyl esters and biodiesel fuels to predict overall reactivity, but some kinetic details, including early CO{sub 2} production from biodiesel fuels, can be predicted only by a detailed kinetic mechanism for a true methyl ester fuel. The present methyl decanoate mechanism provides a realistic kinetic tool for simulation of biodiesel fuels.

  6. Electrochemical method for producing a biodiesel mixture comprising fatty acid alkyl esters and glycerol

    DOE Patents [OSTI]

    Lin, YuPo J; St. Martin, Edward J

    2013-08-13

    The present invention relates to an integrated method and system for the simultaneous production of biodiesel from free fatty acids (via esterification) and from triglycerides (via transesterification) within the same reaction chamber. More specifically, one preferred embodiment of the invention relates to a method and system for the production of biodiesel using an electrodeionization stack, wherein an ion exchange resin matrix acts as a heterogeneous catalyst for simultaneous esterification and transesterification reactions between a feedstock and a lower alcohol to produce biodiesel, wherein the feedstock contains significant levels of free fatty acid. In addition, because of the use of a heterogeneous catalyst, the glycerol and biodiesel have much lower salt concentrations than raw biodiesel produced by conventional transesterification processes. The present invention makes it much easier to purify glycerol and biodiesel.

  7. Comprehensive Assessment of the Emissions from the Use of Biodiesel in

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    California | Department of Energy Comprehensive Assessment of the Emissions from the Use of Biodiesel in California Comprehensive Assessment of the Emissions from the Use of Biodiesel in California Overview of a comprehensive assessment of emissions from biodiesel use in California deer08_durbin.pdf (121.2 KB) More Documents & Publications Evaluation of the European PMP Methodologies Using Chassis Dynamometer and On-road Testing of Heavy-duty Vehicles Measuring "Real World"

  8. Effect of Jatropha based Biodiesel, on Engine Hardware Reliability, Emission and Performance

    Broader source: Energy.gov [DOE]

    Jatropha is a drought-resistant, non-edible plant that can be grown on marginal land and used in the production of biodiesel fuel.

  9. EERE Success Story—Washington: State Ferries Run Cleaner With Biodiesel

    Broader source: Energy.gov [DOE]

    Washington State Ferries now uses blended biodiesel to run its ferries, preventing the emission of more than 29,000 metric tons of carbon dioxide per year.

  10. Impact of Biodiesel-Based Na on the Selective Catalytic Reduction (SCR) of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    NOx Using Cu-zeolite | Department of Energy Biodiesel-Based Na on the Selective Catalytic Reduction (SCR) of NOx Using Cu-zeolite Impact of Biodiesel-Based Na on the Selective Catalytic Reduction (SCR) of NOx Using Cu-zeolite Discusses the impact of Na in biodiesel on three emission control devices: the diesel particulate filter, diesel oxidation catalyst, and zeolyte-based SCR catalyst deer11_toops.pdf (1.75 MB) More Documents & Publications Impacts of Biodiesel on Emission Control

  11. Biodiesel Fuel Property Effects on Particulate Matter Reactivity

    SciTech Connect (OSTI)

    Williams, A.; Black, S.; McCormick, R. L.

    2010-06-01

    Controlling diesel particulate emissions to meet the 2007 U.S. standard requires the use of a diesel particulate filter (DPF). The reactivity of soot, or the carbon fraction of particulate matter, in the DPF and the kinetics of soot oxidation are important in achieving better control of aftertreatment devices. Studies showed that biodiesel in the fuel can increase soot reactivity. This study therefore investigated which biodiesel fuel properties impact reactivity. Three fuel properties of interest included fuel oxygen content and functionality, fuel aromatic content, and the presence of alkali metals. To determine fuel effects on soot reactivity, the performance of a catalyzed DPF was measured with different test fuels through engine testing and thermo-gravimetric analysis. Results showed no dependence on the aromatic content or the presence of alkali metals in the fuel. The presence and form of fuel oxygen was the dominant contributor to faster DPF regeneration times and soot reactivity.

  12. Biodiesel - Energy Explained, Your Guide To Understanding Energy - Energy

    U.S. Energy Information Administration (EIA) Indexed Site

    Information Administration Biodiesel Energy Explained - Home What Is Energy? Forms of Energy Sources of Energy Laws of Energy Units and Calculators Energy Conversion Calculators British Thermal Units (Btu) Degree-Days U.S. Energy Facts State and U.S. Territory Data Use of Energy In Industry For Transportation In Homes In Commercial Buildings Efficiency and Conservation Energy and the Environment Greenhouse Gases Effect on the Climate Where Greenhouse Gases Come From Outlook for Future

  13. Biodiesel and the Environment - Energy Explained, Your Guide To

    U.S. Energy Information Administration (EIA) Indexed Site

    Understanding Energy - Energy Information Administration Biodiesel & the Environment Energy Explained - Home What Is Energy? Forms of Energy Sources of Energy Laws of Energy Units and Calculators Energy Conversion Calculators British Thermal Units (Btu) Degree-Days U.S. Energy Facts State and U.S. Territory Data Use of Energy In Industry For Transportation In Homes In Commercial Buildings Efficiency and Conservation Energy and the Environment Greenhouse Gases Effect on the Climate Where

  14. Biofuels: Ethanol and Biodiesel - Energy Explained, Your Guide To

    U.S. Energy Information Administration (EIA) Indexed Site

    Understanding Energy - Energy Information Administration Biodiesel Energy Explained - Home What Is Energy? Forms of Energy Sources of Energy Laws of Energy Units and Calculators Energy Conversion Calculators British Thermal Units (Btu) Degree-Days U.S. Energy Facts State and U.S. Territory Data Use of Energy In Industry For Transportation In Homes In Commercial Buildings Efficiency and Conservation Energy and the Environment Greenhouse Gases Effect on the Climate Where Greenhouse Gases Come

  15. Producing Beneficial Materials from Biomass and Biodiesel Byproducts -

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Innovation Portal Biomass and Biofuels Biomass and Biofuels Find More Like This Return to Search Producing Beneficial Materials from Biomass and Biodiesel Byproducts Lawrence Berkeley National Laboratory Contact LBL About This Technology Technology Marketing SummaryResearchers at Berkeley Lab have created a process to produce olefins from polyols that may be biomass derived. The team is also the first to introduce a method of producing high purity allyl alcohol at a large scale by

  16. Biodiesel Clears the Air in Underground Mines, Clean Cities, Fact Sheet, June 2009

    SciTech Connect (OSTI)

    Not Available

    2009-06-01

    Mining companies are using biodiesel in their equipment to help clear the air of diesel particulate matter (DPM). This action improves air quality and protects miners' lungs. Though using biodiesel has some challenges in cold weather, tax incentives, and health benefits make it a viable option.

  17. Biodiesel Supply and Consumption in the Short-Term Energy Outlook

    Reports and Publications (EIA)

    2009-01-01

    The historical biodiesel consumption data published in the Energy Information Administration's Monthly Energy Review March 2009 edition were revised to account for imports and exports. Table 10.4 of the Monthly Energy Review was expanded to display biodiesel imports, exports, stocks, stock change, and consumption. Similar revisions were made in the April 2009 edition of the Short-Term Energy Outlook (STEO).

  18. Biodiesel Vehicle and Infrastructure Codes and Standards Chart (Revised) (Fact Sheet), NREL (National Renewable Energy Laboratory)

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Many standards development organizations (SDOs) are working to develop codes and standards needed for the utilization of alternative fuel vehicle technologies. This chart shows the SDOs responsible for leading the support and development of key codes and standards for biodiesel. Biodiesel Vehicle and Infrastructure Codes and Standards Chart Vehicles Storage Dispensing Infrastructure Engine Testing: Fuel Systems: Fuel Lubricants: Powertrain Systems: Containers: Dispensing Operations: Dispensing

  19. Gender Transition Guidelines, Workplace

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Gender Transition Guidelines, Workplace

  20. A comparison of injector flow and spray characteristics of biodiesel with petrodiesel.

    SciTech Connect (OSTI)

    Som, S.; Longman, D. E; Ramirez, A. I.; Aggarwal, S. K.

    2010-12-01

    Performance and emission characteristics of compression ignition engines depend strongly on inner nozzle flow and spray behavior. These processes control the fuel air mixing, which in turn is critical for the combustion process. The differences in the physical properties of petrodiesel and biodiesel are expected to significantly alter the inner nozzle flow and spray structure and, thus, the performance and emission characteristics of the engine. In this study, the inner nozzle flow dynamics of these fuels are characterized by using the mixture-based cavitation model in FLUENT v6.3. Because of its lower vapor pressure, biodiesel was observed to cavitate less than petrodiesel. Higher viscosity of biodiesel resulted in loss of flow efficiency and reduction in injection velocity. Turbulence levels at the nozzle orifice exit were also lower for biodiesel. Using the recently developed KH-ACT model, which incorporates the effects of cavitation and turbulence in addition to aerodynamic breakup, the inner nozzle flow simulations are coupled with the spray simulations in a 'quasi-dynamic' fashion. Thus, the influence of inner nozzle flow differences on spray development of these fuels could be captured, in addition to the effects of their physical properties. Spray penetration was marginally higher for biodiesel, while cone angle was lower, which was attributed to its poor atomization characteristics. The computed liquid lengths of petrodiesel and biodiesel were compared with data from Sandia National Laboratories. Liquid lengths were higher for biodiesel due to its higher boiling temperature and heat of vaporization. Though the simulations captured this trend well, the liquid lengths were underpredicted, which was attributed to uncertainty about the properties of biodiesel used in the experiments. Parametric studies were performed to determine a single parameter that could be used to account for the observed differences in the fuel injection and spray behavior of

  1. Investigation and Optimization of Biodiesel Chemistry for HCCI Combustion

    SciTech Connect (OSTI)

    Bunting, Bruce G.; Bunce, Michael; Joyce, Blake; Crawford, Robert W.

    2014-06-23

    Over the past 5 years, ORNL has run 95 diesel range fuels in homogene-ous charge compression ignition (HCCI), including 40 bio-diesels and associated diesel fuels in their blending. The bio-diesel blends varied in oxygen content, iodine number, cetane, boiling point distribution, chemical composition, and some contained nitrogen. All fuels were run in an HCCI engine at 1800 rpm, in the power range of 2.5 to 4.5 bar IMEP, using intake air heating for combustion phasing control, and at a compression ratio of 10.6. The engine response to fuel variables has been analyzed statistically. Generally, the engine responded well to fuels with lower nitrogen and oxygen, lower cetane, and lower aromatics. Because of the wide range of fuels combined in the model, it provides only a broad overview of the engine response. It is recommended that data be truncated and re-modeled to obtain finer resolution of engine response to particular fuel variables.

  2. Effects of Biodiesel Operation on Light-Duty Tier 2 Engine and Emission Control Systems: Preprint

    SciTech Connect (OSTI)

    Tatur, M.; Nanjundaswamy, H.; Tomazic, D.; Thornton, M.

    2008-08-01

    This paper documents the impact of biodiesel blends on engine-out emissions as well as overall system performance in terms of emissions control system calibration and overall system efficiency.

  3. Laser-induced breakdown spectroscopy measurement in methane and biodiesel flames using an ungated detector

    SciTech Connect (OSTI)

    Eseller, Kemal E.; Yueh, Fang Y.; Singh, Jagdish P

    2008-11-01

    Laser-induced breakdown spectroscopy (LIBS) has been applied to measure the equivalence ratio of CH4/air flames using gated detection. In this work, we have developed an ungated, miniature LIBS-based sensor for studying CH4/air and biodiesel flames. We have used this sensor to characterize the biodiesel flame. LIBS spectra of biodiesel flames were recorded with different ethanol concentrations in the biodiesel and also at different axial locations within the flame. The sensor performance was evaluated with a CH4/air flame. LIBS signals of N, O, and H from a CH4/air flame were used to determine the equivalence ratio. A linear relationship between the intensity ratio of H and O lines and the calculated equivalence ratio were obtained with this sensor.

  4. Impact of Biodiesel-Based Na on the Selective Catalytic Reduction...

    Broader source: Energy.gov (indexed) [DOE]

    Discusses the impact of Na in biodiesel on three emission control devices: the diesel particulate filter, diesel oxidation catalyst, and zeolyte-based SCR catalyst deer11toops.pdf ...

  5. Impacts of Biodiesel Fuel Blends Oil Dilution on Light-Duty Diesel Engine Operation

    SciTech Connect (OSTI)

    Thornton, M. J.; Alleman, T. L.; Luecke, J.; McCormick, R. L.

    2009-08-01

    Assesses oil dilution impacts on a diesel engine operating with a diesel particle filter, NOx storage, a selective catalytic reduction emission control system, and a soy-based 20% biodiesel fuel blend.

  6. A numerical study comparing the combustion and emission characteristics of biodiesel with petrodiesel.

    SciTech Connect (OSTI)

    Som, S.; Longman, D.

    2011-04-01

    Combustion and emission characteristics of compression ignition engines strongly depend upon inner-nozzle flow and spray behavior. These processes control the fuel-air mixing, which in turn is critical for the combustion process. Previous studies by us highlighted the differences in the physical and chemical properties of petrodiesel and biodiesel, which significantly altered the inner-nozzle flow and spray structure. The current study is another step in this direction to gain a fundamental understanding on the influence of fuel properties on the combustion and emission characteristics of the compression ignition engine. n-Heptane and methyl butanoate were selected as surrogates for diesel and biodiesel fuels, respectively, because the chemical kinetic pathways were well-understood. Liquid length and flame lift-off length for diesel and biodiesel fuels were validated against data available in the literature. Liquid lengths were always higher for biodiesel because of its higher heat of vaporization, which resulted in increased interplay between spray and combustion processes under all conditions investigated. Ambient air entrainment was also lower for biodiesel mainly because of slower atomization and breakup. The mechanism for flame stabilization is further analyzed by estimating the turbulent burning velocity for both of the fuels. This analysis revealed that neither flame propagation nor isolated ignition kernels upstream and detached from high-temperature regions can be the mechanism for flame stabilization. Flame propagation speeds were observed to be similar for both fuels. Biodiesel predicted lower soot concentrations, which were also reflected in reduced C{sub 2}H{sub 2} mole fractions. Although prompt NO{sub x} was higher for biodiesel, total NO{sub x} was lower because of reduced thermal NO{sub x}. The ignition delay and NO{sub x} emissions predicted by these simulations do not agree with trends reported in the literature; hence, this study highlights the

  7. Biodiesel Vehicle and Infrastructure Codes and Standards Citations (Brochure), NREL (National Renewable Energy Laboratory)

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Biodiesel Vehicle and Infrastructure Codes and Standards Citations This document lists codes and standards typically used for U.S. biodiesel vehicle and infrastructure projects. To determine which codes and standards apply to a specific project, identify the codes and standards currently in effect within the jurisdiction where the project will be located. Some jurisdictions also have unique ordinances or regulations that could apply. Learn about codes and standards basics at

  8. Continuous Production of Biodiesel Via an Intensified Reactive/Extractive Process

    SciTech Connect (OSTI)

    Tsouris, Costas; McFarlane, Joanna; Birdwell Jr, Joseph F; Jennings, Hal L

    2008-01-01

    Biodiesel is considered as a means to diversify our supply of transportation fuel, addressing the goal of reducing our dependence on oil. For a number of reasons ranging from production issues to end use, biodiesel represents only a small fraction of the transportation fuel used worldwide. This work addresses the aspect of biodiesel production that limits it to a slow batch process. Conventional production methods are batch in nature, based on the assumption that the rates of the key chemical reactions are slow. The hypothesis motivating this work is that the reaction kinetics for the transesterification of the reagent triglyceride is sufficiently fast, particularly in an excess of catalyst, and that interfacial mass transfer and phase separation control the process. If this is the case, an intensified two-phase reactor adapted from solvent extraction equipment may be utilized to greatly increase biodiesel production rates by increasing interphase transport and phase separation. To prove this idea, we are investigating two aspects: (1) determining the rate-limiting step in biodiesel production by evaluating the reaction kinetics, and (2) enhancing biodiesel production rates by using an intensified reactor. A centrifugal contactor combining interphase mass transfer, chemical reaction, and phase separation is employed for process intensification.

  9. A Numerical Investigation into the Anomalous Slight NOx Increase when Burning Biodiesel: A New (Old) Theory

    SciTech Connect (OSTI)

    Ban-Weiss, G A; Chen, J Y; Buchholz, B A; Dibble, R W

    2007-01-30

    Biodiesel is a notable alternative to petroleum derived diesel fuel because it comes from natural domestic sources and thus reduces dependence on diminishing petroleum fuel from foreign sources, it likely lowers lifecycle greenhouse gas emissions, and it lowers an engine's emission of most pollutants as compared to petroleum derived diesel. However, the use of biodiesel often slightly increases a diesel engine's emission of smog forming nitrogen oxides (NO{sub x}) relative to petroleum diesel. In this paper, previously proposed theories for this slight NOx increase are reviewed, including theories based on biodiesel's cetane number, which leads to differing amounts of charge preheating, and theories based on the fuel's bulk modulus, which affects injection timing. This paper proposes an additional theory for the slight NO{sub x} increase of biodiesel. Biodiesel typically contains more double bonded molecules than petroleum derived diesel. These double bonded molecules have a slightly higher adiabatic flame temperature, which leads to the increase in NOx production for biodiesel. Our theory was verified using numerical simulations to show a NOx increase, due to the double bonded molecules, that is consistent with observation. Further, the details of these numerical simulations show that NOx is predominantly due to the Zeldovich mechanism.

  10. AC Transit

    Broader source: Energy.gov [DOE]

    AC Transit (or the Alameda-Contra Costa Transit District) is based in Oakland, California, and provides transportation services to the East Bay of San Francisco. The 360-square-mile service area includes 13 cities and adjacent unincorporated areas in Alameda and Contra Costa counties. AC Transit's approximately 638 vehicles serve more than 65 million annual passengers.

  11. Washington Metropolitan Area Transit Authority: Biodiesel Fuel Comparison Final Data Report

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

  12. RWTPD.pdf

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    RTD Biodiesel (B20) Transit Bus Evaluation: Interim Review Summary K. Proc, R. Barnitt, and R.L. McCormick Technical Report NREL/TP-540-38364 August 2005 RTD Biodiesel (B20) Transit Bus Evaluation: Interim Review Summary K. Proc, R. Barnitt, and R.L. McCormick Prepared under Task No. FC05.9400 Technical Report NREL/TP-540-38364 August 2005 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy

  13. Saturated Monoglyceride Polymorphism and Gel Formation of Biodiesel Blends

    SciTech Connect (OSTI)

    Chupka, Gina; Fouts, Lisa; McCormick, Robert

    2015-11-13

    Crystallization or gel formation of normal paraffins in diesel fuel under cold weather conditions leading to fuel filter clogging is a common problem. Cold weather operability of biodiesel (B100) and blends with diesel fuel presents additional complexity because of the presence of saturated monoglycerides (SMGs) and other relatively polar species. Currently, the cloud point measurement (a measure of when the first component crystallizes out of solution) is used to define the lowest temperature at which the fuel can be used without causing cold weather issues. While filter plugging issues have declined, there still remain intermittent unexpected problems above the cloud point for biodiesel blends. Development of a fundamental understanding of how minor components in biodiesel crystallize, gel, and transform is needed in order to prevent these unexpected issues. We have found that SMGs, a low level impurity present in B100 from the production process, can crystallize out of solution and undergo a solvent-mediated polymorphic phase transformation to a more stable, less soluble form. This causes them to persist at temperatures above the cloud point once they have some out of solution. Additionally, we have found that SMGs can cause other more soluble, lower melting point minor components in the B100 to co-crystallize and come out of solution. Monoolein, another minor component from the production process is an unsaturated monoglyceride with a much lower melting point and higher solubility than SMGs. It is able to form a co-crystal with the SMGs and is found together with the SMGs on plugged filters we have analyzed in our laboratory. An observation of isolated crystals in the lab led us to believe that the SMGs may also be forming a gel-like network with components of the B100 and diesel fuel. During filtration experiments, we have noted that in some cases a solid layer of crystals forms and blocks the filter completely, while in other cases this does not occur

  14. On droplet combustion of biodiesel fuel mixed with diesel/alkanes in microgravity condition

    SciTech Connect (OSTI)

    Pan, Kuo-Long; Li, Je-Wei; Chen, Chien-Pei; Wang, Ching-Hua

    2009-10-15

    The burning characteristics of a biodiesel droplet mixed with diesel or alkanes such as dodecane and hexadecane were experimentally studied in a reduced-gravity environment so as to create a spherically symmetrical flame without the influence of natural convection due to buoyancy. Small droplets on the order of 500 {mu}m in diameter were initially injected via a piezoelectric technique onto the cross point intersected by two thin carbon fibers; these were prepared inside a combustion chamber that was housed in a drag shield, which was freely dropped onto a foam cushion. It was found that, for single component droplets, the tendency to form a rigid soot shell was relatively small for biodiesel fuel as compared to that exhibited by the other tested fuels. The soot created drifted away readily, showing a puffing phenomenon; this could be related to the distinct molecular structure of biodiesel leading to unique soot layers that were more vulnerable to oxidative reactivity as compared to the soot generated by diesel or alkanes. The addition of biodiesel to these more traditional fuels also presented better performance with respect to annihilating the soot shell, particularly for diesel. The burning rate generally follows that of multi-component fuels, by some means in terms of a lever rule, whereas the mixture of biodiesel and dodecane exhibits a somewhat nonlinear relation with the added fraction of dodecane. This might be related to the formation of a soot shell. (author)

  15. Biodiesel from aquatic species. Project report: FY 1993

    SciTech Connect (OSTI)

    Brown, L.M.; Sprague, S.; Jarvis, E.E.; Dunahay, T.G.; Roessler, P.G.; Zeiler, K.G.

    1994-01-01

    Researchers in the Biodiesel/Aquatic Species Project focus on the use of microalgae as a feedstock for producing renewable, high-energy liquid fuels. The program`s basic premise is that microalgae, which have been called the most productive biochemical factories in the world, can produce up to 30 times more oil per unit of growth area than land plants. It is estimated that 150 to 400 barrels of oil per acre per year (0.06 to 0.16 million liters/hectar) could be produced with microalgal oil technology. Initial commercialization of this technology is envisioned for the desert Southwest because this area provides high solar radiation and offers flat land that has few competing uses (hence low land costs). Similarly, there are large saline aquifers with few competing uses in the region. This water source could provide a suitable, low-cost medium for the growth of many microalgae. The primary area of research during FY 1993 was the effort to genetically improve microalgae in order to control the timing and magnitude of lipid accumulation. Increased lipid content will have a direct effect on fuel price, and the control of lipid content is a major project goal. The paper describes progress on the following: culture collection; molecular biology of lipid biosynthesis; microalgal transformation; and environmental, safety, and health and quality assurance.

  16. Biodiesel production from multi feedstock as feed with direct ultrasound assisted

    SciTech Connect (OSTI)

    Widayat; Satriadi, H.; Nafiega, N. Favian; Dipo, Rheza; Okvitarini; Alimin, A. J.; Ali, Mas Fawzi Mohd

    2015-12-29

    The objective of this study was to optimize of ratio oil type, ratio oil to methanol and catalyst concentration. The optimization was used Central Composite Design (CCD). Biodiesel was produced with multi stock oil as feed and conducted in direct ultrasonic radiation. Biosonic equiped with ultrasonic generator with a frequency of 28 kHz. Biodiesel produced at a pressure of 1 atm, reaction time of 60 min and temperature 60 ° C. The optimum conditions of volume ratio for Palm and Coconut oil 4:1, KOH catalyst concentration 0.3% and methanol to oil mole ratio 7:1. Biodiesel yield was determined under this condition and obtained 81.105%.

  17. Modeling the Auto-Ignition of Biodiesel Blends with a Multi-Step Model

    SciTech Connect (OSTI)

    Toulson, Dr. Elisa; Allen, Casey M; Miller, Dennis J; McFarlane, Joanna; Schock, Harold; Lee, Tonghun

    2011-01-01

    There is growing interest in using biodiesel in place of or in blends with petrodiesel in diesel engines; however, biodiesel oxidation chemistry is complicated to directly model and existing surrogate kinetic models are very large, making them computationally expensive. The present study describes a method for predicting the ignition behavior of blends of n-heptane and methyl butanoate, fuels whose blends have been used in the past as a surrogate for biodiesel. The autoignition is predicted using a multistep (8-step) model in order to reduce computational time and make this a viable tool for implementation into engine simulation codes. A detailed reaction mechanism for n-heptane-methyl butanoate blends was used as a basis for validating the multistep model results. The ignition delay trends predicted by the multistep model for the n-heptane-methyl butanoate blends matched well with that of the detailed CHEMKIN model for the majority of conditions tested.

  18. UTILIZING WATER EMULSIFICATION TO REDUCE NOX AND PARTICULATE EMISSIONS ASSOCIATED WITH BIODIESEL

    SciTech Connect (OSTI)

    Kass, Michael D; Lewis Sr, Samuel Arthur; Lee, Doh-Won; Huff, Shean P; Storey, John Morse; Swartz, Matthew M; Wagner, Robert M

    2009-01-01

    A key barrier limiting extended utilization of biodiesel is higher NOx emissions compared to petrodiesel fuels. The reason for this effect is unclear, but various researchers have attributed this phenomena to the higher liquid bulk modulus associated with biodiesel and the additional heat released during the breaking of C-C double bonds in the methyl ester groups. In this study water was incorporated into neat biodiesel (B100) as an emulsion in an attempt to lower NOx and particulate matter (PM) emissions. A biodiesel emulsion containing 10wt% water was formulated and evaluated against an ultra-low sulfur petroleum diesel (ULSD) and neat biodiesel (B100) in a light-duty diesel engine operated at 1500RPM and at loads of 68Nm (50ft-lbs) and 102Nm (75ft-lbs). The influence of exhaust gas recirculation (EGR) was also examined. The incorporation of water was found to significantly lower the NOx emissions of B100, while maintaining fuel efficiency when operating at 0 and 27% EGR. The soot fraction of the particulates (as determined using an opacity meter) was much lower for the B100 and B100-water emulsion compared ULSD. In contrast, total PM mass (for the three fuel types) was unchanged for the 0% EGR condition but was significantly lower for the B100 and B100-emulsion during the 27% EGR condition compared to the ULSD fuel. Analysis of the emissions and heat release data indicate that water enhances air-fuel premixing to maintain fuel economy and lower soot formation. The exhaust chemistry of the biodiesel base fuels (B100 and water-emulsified B100) was found to be unique in that they contained measurable levels of methyl alkenoates, which were not found for the ULSD. These compounds were formed by the partial cracking of the methyl ester groups during combustion.

  19. NREL Survey Shows Dramatic Improvement in B100 Biodiesel Quality - News

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Releases | NREL Survey Shows Dramatic Improvement in B100 Biodiesel Quality April 15, 2013 The latest national survey of 100% biodiesel (B100) "blend stock" samples by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) found that 95% of the samples from 2011-12 met ASTM International fuel quality specifications. The ASTM standards serve as guidelines for industry and are designed to ensure quality at the pump for consumers - along with reliable operation of

  20. Storage Tanks and Dispensers for E85 and Bio-Diesel

    SciTech Connect (OSTI)

    Webster, Michael; Frederick, Justin

    2014-02-10

    Project objective is to improve the District's alternative fueling infrastructure by installing storage tanks and dispensers for E-85 and Bio-Diesel at the existing Blackwell Forest Preserve Alternative Fuel Station. The addition of E-85 and Bio-Diesel at this station will continue to reduce our dependency on foreign oil, while promoting the use of clean burning, domestically produced, renewable alternative fuels. In addition, this station will promote strong intergovernmental cooperation as other governmental agencies have expressed interest in utilizing this station.

  1. Influence of corn oil recovery on life-cycle greenhouse gas emissions of corn ethanol and corn oil biodiesel

    SciTech Connect (OSTI)

    Wang, Zhichao; Dunn, Jennifer B.; Han, Jeongwoo; Wang, Michael

    2015-11-04

    Corn oil recovery and conversion to biodiesel has been widely adopted at corn ethanol plants recently. The US EPA has projected 2.6 billion liters of biodiesel will be produced from corn oil in 2022. Corn oil biodiesel may qualify for federal renewable identification number (RIN) credits under the Renewable Fuel Standard, as well as for low greenhouse gas (GHG) emission intensity credits under California’s Low Carbon Fuel Standard. Because multiple products [ethanol, biodiesel, and distiller’s grain with solubles (DGS)] are produced from one feedstock (corn), however, a careful co-product treatment approach is required to accurately estimate GHG intensities of both ethanol and corn oil biodiesel and to avoid double counting of benefits associated with corn oil biodiesel production. This study develops four co-product treatment methods: (1) displacement, (2) marginal, (3) hybrid allocation, and (4) process-level energy allocation. Life-cycle GHG emissions for corn oil biodiesel were more sensitive to the choice of co-product allocation method because significantly less corn oil biodiesel is produced than corn ethanol at a dry mill. Corn ethanol life-cycle GHG emissions with the displacement, marginal, and hybrid allocation approaches are similar (61, 62, and 59 g CO2e/MJ, respectively). Although corn ethanol and DGS share upstream farming and conversion burdens in both the hybrid and process-level energy allocation methods, DGS bears a higher burden in the latter because it has lower energy content per selling price as compared to corn ethanol. As a result, with the process-level allocation approach, ethanol’s life-cycle GHG emissions are lower at 46 g CO2e/MJ. Corn oil biodiesel life-cycle GHG emissions from the marginal, hybrid allocation, and process-level energy allocation methods were 14, 59, and 45 g CO2e/MJ, respectively. Sensitivity analyses were conducted to investigate the influence corn oil yield, soy biodiesel, and

  2. Influence of corn oil recovery on life-cycle greenhouse gas emissions of corn ethanol and corn oil biodiesel

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wang, Zhichao; Dunn, Jennifer B.; Han, Jeongwoo; Wang, Michael

    2015-11-04

    Corn oil recovery and conversion to biodiesel has been widely adopted at corn ethanol plants recently. The US EPA has projected 2.6 billion liters of biodiesel will be produced from corn oil in 2022. Corn oil biodiesel may qualify for federal renewable identification number (RIN) credits under the Renewable Fuel Standard, as well as for low greenhouse gas (GHG) emission intensity credits under California’s Low Carbon Fuel Standard. Because multiple products [ethanol, biodiesel, and distiller’s grain with solubles (DGS)] are produced from one feedstock (corn), however, a careful co-product treatment approach is required to accurately estimate GHG intensities of bothmore » ethanol and corn oil biodiesel and to avoid double counting of benefits associated with corn oil biodiesel production. This study develops four co-product treatment methods: (1) displacement, (2) marginal, (3) hybrid allocation, and (4) process-level energy allocation. Life-cycle GHG emissions for corn oil biodiesel were more sensitive to the choice of co-product allocation method because significantly less corn oil biodiesel is produced than corn ethanol at a dry mill. Corn ethanol life-cycle GHG emissions with the displacement, marginal, and hybrid allocation approaches are similar (61, 62, and 59 g CO2e/MJ, respectively). Although corn ethanol and DGS share upstream farming and conversion burdens in both the hybrid and process-level energy allocation methods, DGS bears a higher burden in the latter because it has lower energy content per selling price as compared to corn ethanol. As a result, with the process-level allocation approach, ethanol’s life-cycle GHG emissions are lower at 46 g CO2e/MJ. Corn oil biodiesel life-cycle GHG emissions from the marginal, hybrid allocation, and process-level energy allocation methods were 14, 59, and 45 g CO2e/MJ, respectively. Sensitivity analyses were conducted to investigate the influence corn oil yield, soy biodiesel, and defatted DGS displacement

  3. Life Cycle Inventory of Biodiesel and Petroleum Diesel for Use in an Urban Bus

    SciTech Connect (OSTI)

    Sheehan, John; Camobreco, Vince; Duffield, James; Graboski, Michael; Graboski, Michael; Shapouri, Housein

    1998-05-01

    This report presents the findings from a study of the life cycle inventories (LCIs) for petroleum diesel and biodiesel. An LCI is a comprehensive quantification of all the energy and environmental flows associated with a product from “cradle to grave.” It provides information on raw materials extracted from the environment; energy resources consumed; air, water, and solid waste emissions generated.

  4. Production of FAME biodiesel in E. coli by direct methylation with an insect enzyme

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Sherkhanov, Saken; Korman, Tyler P.; Clarke, Steven G.; Bowie, James U.

    2016-04-07

    Here, most biodiesel currently in use consists of fatty acid methyl esters (FAMEs) produced by transesterification of plant oils with methanol. To reduce competition with food supplies, it would be desirable to directly produce biodiesel in microorganisms. To date, the most effective pathway for the production of biodiesel in bacteria yields fatty acid ethyl esters (FAEEs) at up to ~1.5 g/L. A much simpler route to biodiesel produces FAMEs by direct S-adenosyl-L-methionine (SAM) dependent methylation of free fatty acids, but FAME production by this route has been limited to only ~16 mg/L. Here we employ an alternative, broad spectrum methyltransferase,more » Drosophila melanogaster Juvenile Hormone Acid O-Methyltransferase (DmJHAMT). By introducing DmJHAMT in E. coli engineered to produce medium chain fatty acids and overproduce SAM, we obtain medium chain FAMEs at titers of 0.56 g/L, a 35-fold increase over titers previously achieved. Although considerable improvements will be needed for viable bacterial production of FAMEs and FAEEs for biofuels, it may be easier to optimize and transport the FAME production pathway to other microorganisms because it involves fewer enzymes.« less

  5. Biomass Program 2007 Program Peer Review - Biodiesel and Other Technologies Summary

    SciTech Connect (OSTI)

    none,

    2009-10-28

    This document discloses the comments provided by a review panel at the U.S. Department of Energy Office of the Biomass Program Peer Review held on November 15-16, 2007 in Baltimore, MD and the Biodiesel and Other Technologies, held on August 14th and 15th in Golden, Colorado.

  6. EECBG Success Story: Atlanta Suburb Greases the Path to Savings with Biodiesel

    Broader source: Energy.gov [DOE]

    Downtown Smyrna, Georgia is using $184,000 of the city’s $208,000 in Energy Efficiency and Conservation Block Grant funding to create space for two 55-gallon processors that will turn cooking oil into biodiesel. Learn more.

  7. SEP Success Story: Washington State Becomes Largest Public Consumer of Biodiesel

    Broader source: Energy.gov [DOE]

    Thanks to a $165,000 Recovery Act loan through the State Energy Program, Washington State Ferries run on a blended biodiesel fuel that will prevent over 65 million pounds of carbon dioxide from being emitted into the environment each year. Learn more.

  8. Permanent Closure of MFC Biodiesel Underground Storage Tank 99ANL00013

    SciTech Connect (OSTI)

    Kerry L. Nisson

    2012-10-01

    This closure package documents the site assessment and permanent closure of the Materials and Fuels Complex biodiesel underground storage tank 99ANL00013 in accordance with the regulatory requirements established in 40 CFR 280.71, “Technical Standards and Corrective Action Requirements for Owners and Operators of Underground Storage Tanks: Out-of-Service UST Systems and Closure.”

  9. Operation of a solid oxide fuel cell on biodiesel with a partial oxidation reformer

    SciTech Connect (OSTI)

    Siefert, N, Shekhawat, D.; Gemmen, R.; Berry, D.

    2010-01-01

    The National Energy Technology Laboratory’s Office of Research & Development (NETL/ORD) has successfully demonstrated the operation of a solid oxide fuel cell (SOFC) using reformed biodiesel. The biodiesel for the project was produced and characterized by West Virginia State University (WVSU). This project had two main aspects: 1) demonstrate a catalyst formulation on monolith for biodiesel fuel reforming; and 2) establish SOFC stack test stand capabilities. Both aspects have been completed successfully. For the first aspect, in–house patented catalyst specifications were developed, fabricated and tested. Parametric reforming studies of biofuels provided data on fuel composition, catalyst degradation, syngas composition, and operating parameters required for successful reforming and integration with the SOFC test stand. For the second aspect, a stack test fixture (STF) for standardized testing, developed by Pacific Northwest National Laboratory (PNNL) and Lawrence Berkeley National Laboratory (LBNL) for the Solid Energy Conversion Alliance (SECA) Program, was engineered and constructed at NETL. To facilitate the demonstration of the STF, NETL employed H.C. Starck Ceramics GmbH & Co. (Germany) anode supported solid oxide cells. In addition, anode supported cells, SS441 end plates, and cell frames were transferred from PNNL to NETL. The stack assembly and conditioning procedures, including stack welding and sealing, contact paste application, binder burn-out, seal-setting, hot standby, and other stack assembly and conditioning methods were transferred to NETL. In the future, fuel cell stacks provided by SECA or other developers could be tested at the STF to validate SOFC performance on various fuels. The STF operated on hydrogen for over 1000 hrs before switching over to reformed biodiesel for 100 hrs of operation. Combining these first two aspects led to demonstrating the biodiesel syngas in the STF. A reformer was built and used to convert 0.5 ml/min of

  10. Analysis of Coconut-Derived Biodiesel and Conventional Diesel Fuel Samples from the Philippines: Task 2 Final Report

    SciTech Connect (OSTI)

    Alleman, T. L.; McCormick, R. L.

    2006-01-01

    NREL tested Philippines coconut biodiesel samples of neat and blended fuels. Results show that the current fuel quality standards were met with very few exceptions. Additional testing is recommended.

  11. Development and Validation of a Reduced Reaction Mechanism for Biodiesel-Fueled Engine Simulations- SAE 2008-01-1378

    SciTech Connect (OSTI)

    Brakora, Jessica L; Ra, Youngchul; Reitz, Rolf; McFarlane, Joanna; Daw, C Stuart

    2008-01-01

    In the present study a skeletal chemical reaction mechanism for biodiesel surrogate fuel was developed and validated for multi-dimensional engine combustion simulations. The reduced mechanism was generated from an existing detailed methyl butanoate oxidation mechanism containing 264 species and 1219 reactions. The reduction process included flux analysis, ignition sensitivity analysis, and optimization of reaction rate constants under constant volume conditions. The current reduced mechanism consists of 41 species and 150 reactions and gives predictions in excellent agreement with those of the comprehensive mechanism. In order to validate the mechanism under biodiesel-fueled engine conditions, it was combined with another skeletal mechanism for n-heptane oxidation. This combined reaction mechanism, ERC-Bio, contains 53 species and 156 reactions, which can be used for diesel/biodiesel blend engine simulations. Biodiesel-fueled engine operation was successfully simulated using the ERC-Bio mechanism.

  12. Final Technical Report on Development of an Economic and Efficient Biodiesel production Process (NC)

    SciTech Connect (OSTI)

    Tirla, Cornelia; Dooling, Thomas A.; Smith, Rachel B.; Shi, Xinyan; Shahbazi, Abolghasem

    2014-03-19

    The Biofuels Team at The University of North Carolina at Pembroke and North Carolina A&T State University carried out a joint research project aimed at developing an efficient process to produce biodiesel. In this project, the team developed and tested various types of homogeneous and heterogeneous catalysts which could replace the conventionally used soluble potassium hydroxide catalyst which, traditionally, must be separated and disposed of at the end of the process. As a result of this screening, the homogeneous catalyst choline hydroxide was identified as a potential replacement for the traditional catalyst used in this process, potassium hydroxide, due to its decreased corrosiveness and toxicity. A large number of heterogeneous catalysts were produced and tested in order to determine the scaffold, ion type and ion concentration which would produce optimum yield of biodiesel. The catalyst with 12% calcium on Zeolite β was identified as being highly effective and optimal reaction conditions were identified. Furthermore, a packed bed reactor utilizing this type of catalyst was designed, constructed and tested in order to further optimize the process. An economic analysis of the viability of the project showed that the cost of an independent farmer to produce the fuelstock required to produce biodiesel exceeds the cost of petroleum diesel under current conditions and that therefore without incentives, farmers would not be able to benefit economically from producing their own fuel. An educational website on biodiesel production and analysis was produced and a laboratory experiment demonstrating the production of biodiesel was developed and implemented into the Organic Chemistry II laboratory curriculum at UNCP. Five workshops for local farmers and agricultural agents were held in order to inform the broader community about the various fuelstock available, their cultivation and the process and advantages of biodiesel use and production. This project fits both

  13. Impact of the Fuel Molecular Structure on the Oxidation Process of Real Diesel fuels According to Storage Conditions and Biodiesel Content

    Broader source: Energy.gov [DOE]

    Hydrocarbon profilers can provide a clear understanding of complex interactions between fuel chemistry, storage conditions, and quantity of biodiesel over time.

  14. Methods and catalysts for making biodiesel from the transesterification and esterification of unrefined oils

    DOE Patents [OSTI]

    Yan, Shuli; Salley, Steven O.; Ng, K. Y. Simon

    2012-04-24

    A method of forming a biodiesel product and a heterogeneous catalyst system used to form said product that has a high tolerance for the presence of water and free fatty acids (FFA) in the oil feedstock is disclosed. This catalyst system may simultaneously catalyze both the esterification of FAA and the transesterification of triglycerides present in the oil feedstock. The catalyst system according to one aspect of the present disclosure represents a class of zinc and lanthanum oxide heterogeneous catalysts that include different ratios of zinc oxide to lanthanum oxides (Zn:La ratio) ranging from about 10:0 to 0:10. The Zn:La ratio in the catalyst is believed to have an effect on the number and reactivity of Lewis acid and base sites, as well as the transesterification of glycerides, the esterification of fatty acids, and the hydrolysis of glycerides and biodiesel.

  15. Quality Parameters and Chemical Analysis for Biodiesel Produced in the United States in 2011

    SciTech Connect (OSTI)

    Alleman, T. L.; Fouts, L.; Chupka, G.

    2013-03-01

    Samples of biodiesel (B100) from producers and terminals in 2011were tested for critical properties: free and total glycerin, flash point, cloud point, oxidation stability, cold soak filterability, and metals. Failure rates for cold soak filterability and oxidation stability were below 5%. One sample failed flash point due to excess methanol. One sample failed oxidation stability and metal content. Overall, 95% of the samples from this survey met biodiesel quality specification ASTM D6751. In 2007, a sampling of B100 from production facilities showed that nearly 90% met D6751. In samples meeting D6751, calcium was found above the method detection limit in nearly half the samples. Feedstock analysis revealed half the biodiesel was produced from soy and half was from mixed feedstocks. The saturated fatty acid methyl ester concentration of the B100 was compared to the saturated monoglyceride concentration as a percent of total monoglyceride. The real-world correlation of these properties was very good. The results of liquid chromatograph measurement of monoglycerides were compared to ASTM D6751. Agreement between the two methods was good, particularly for total monoglycerides and unsaturated monoglycerides. Because only very low levels of saturated monoglycerides measured, the two methods had more variability, but the correlation was still acceptable.

  16. Investigation of Bio-Diesel Fueled Engines under Low-Temperature Combustion Strategies

    SciTech Connect (OSTI)

    Chia-fon F. Lee; Alan C. Hansen

    2010-09-30

    In accordance with meeting DOE technical targets this research was aimed at developing and optimizing new fuel injection technologies and strategies for the combustion of clean burning renewable fuels in diesel engines. In addition a simultaneous minimum 20% improvement in fuel economy was targeted with the aid of this novel advanced combustion system. Biodiesel and other renewable fuels have unique properties that can be leveraged to reduce emissions and increase engine efficiency. This research is an investigation into the combustion characteristics of biodiesel and its impacts on the performance of a Low Temperature Combustion (LTC) engine, which is a novel engine configuration that incorporates technologies and strategies for simultaneously reducing NOx and particulate emissions while increasing engine efficiency. Generating fundamental knowledge about the properties of biodiesel and blends with petroleum-derived diesel and their impact on in-cylinder fuel atomization and combustion processes was an important initial step to being able to optimize fuel injection strategies as well as introduce new technologies. With the benefit of this knowledge experiments were performed on both optical and metal LTC engines in which combustion and emissions could be observed and measured under realistic conditions. With the aid these experiments and detailed combustion models strategies were identified and applied in order to improve fuel economy and simultaneously reduce emissions.

  17. Development of Site Transition Plan, Use of the Site Transition...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Site Transition Plan, Use of the Site Transition Framework, and Terms and Conditions for Site Transition Development of Site Transition Plan, Use of the Site Transition Framework, ...

  18. A COMBINED REACTION/PRODUCT RECOVERY PROCESS FOR THE CONTINUOUS PRODUCTION OF BIODIESEL

    SciTech Connect (OSTI)

    Birdwell, J.F., Jr.; McFarlane, J.; Schuh, D.L.; Tsouris, C; Day, J.N.; Hullette, J.N.

    2009-09-01

    Oak Ridge National Laboratory (ORNL) and Nu-Energie, LLC entered into a Cooperative Research And Development Agreement (CRADA) for the purpose of demonstrating and deploying a novel technology for the continuous synthesis and recovery of biodiesel from the transesterification of triglycerides. The focus of the work was the demonstration of a combination Couette reactor and centrifugal separator - an invention of ORNL researchers - that facilitates both product synthesis and recovery from reaction byproducts in the same apparatus. At present, transesterification of triglycerides to produce biodiesel is performed in batch-type reactors with an excess of a chemical catalyst, which is required to achieve high reactant conversions in reasonable reaction times (e.g., 1 hour). The need for long reactor residence times requires use of large reactors and ancillary equipment (e.g., feed and product tankage), and correspondingly large facilities, in order to obtain the economy of scale required to make the process economically viable. Hence, the goal of this CRADA was to demonstrate successful, extended operation of a laboratory-scale reactor/separator prototype to process typical industrial reactant materials, and to design, fabricate, and test a production-scale unit for deployment at the biodiesel production site. Because of its ease of operation, rapid attainment of steady state, high mass transfer and phase separation efficiencies, and compact size, a centrifugal contactor was chosen for intensification of the biodiesel production process. The unit was modified to increase the residence time from a few seconds to minutes*. For this application, liquid phases were introduced into the reactor as separate streams. One was composed of the methanol and base catalyst and the other was the soy oil used in the experiments. Following reaction in the mixing zone, the immiscible glycerine and methyl ester products were separated in the high speed rotor and collected from separate

  19. Biodiesel Effects on the Operation of U.S. Light-Duty Tier 2 Engine and Aftertreatment Systems

    Broader source: Energy.gov [DOE]

    Results of the NOx adsorber system with catalyst aged to useful life conditions (simulated 120k miles), comparing performance betweem B20 fuel blend and base ultra-low sulfur diesel fuel

  20. Effects of Biodiesel Blends on Vehicle Emissions: Fiscal Year 2006 Annual Operating Plan Milestone 10.4

    SciTech Connect (OSTI)

    McCormick, R. L.; Williams, A.; Ireland, J.; Hayes, R. R.

    2006-10-01

    The objective was to determine if testing entire vehicles, vs. just the engines, on a heavy-duty chassis dynamometer provides a better, measurement of the impact of B20 on emissions.

  1. A computational investigation of diesel and biodiesel combustion and NOx formation in a light-duty compression ignition engine

    SciTech Connect (OSTI)

    Wang, Zihan; Srinivasan, Kalyan K.; Krishnan, Sundar R.; Som, Sibendu

    2012-04-24

    Diesel and biodiesel combustion in a multi-cylinder light duty diesel engine were simulated during a closed cycle (from IVC to EVO), using a commercial computational fluid dynamics (CFD) code, CONVERGE, coupled with detailed chemical kinetics. The computational domain was constructed based on engine geometry and compression ratio measurements. A skeletal n-heptane-based diesel mechanism developed by researchers at Chalmers University of Technology and a reduced biodiesel mechanism derived and validated by Luo and co-workers were applied to model the combustion chemistry. The biodiesel mechanism contains 89 species and 364 reactions and uses methyl decanoate, methyl-9- decenoate, and n-heptane as the surrogate fuel mixture. The Kelvin-Helmholtz and Rayleigh-Taylor (KH-RT) spray breakup model for diesel and biodiesel was calibrated to account for the differences in physical properties of the fuels which result in variations in atomization and spray development characteristics. The simulations were able to capture the experimentally observed pressure and apparent heat release rate trends for both the fuels over a range of engine loads (BMEPs from 2.5 to 10 bar) and fuel injection timings (from 0° BTDC to 10° BTDC), thus validating the overall modeling approach as well as the chemical kinetic models of diesel and biodiesel surrogates. Moreover, quantitative NOx predictions for diesel combustion and qualitative NOx predictions for biodiesel combustion were obtained with the CFD simulations and the in-cylinder temperature trends were correlated to the NOx trends."

  2. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second...

    Energy Savers [EERE]

    Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and ...

  3. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third...

    Energy Savers [EERE]

    Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation Report and ...

  4. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results This ...

  5. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation Report and ...

  6. Alameda-Contra Costa Transit District Fuel Cell Transit Buses...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results Update Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices

  7. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and ... Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation Report and Appendices

  8. Enhancement of CO2 and H2 Uptake for the Production of Biodiesel in Cupriavidus Necator

    SciTech Connect (OSTI)

    Sullivan, R. P.; Eckert, C. A.; Balzer, G. J.; Yu, J.; Maness, P. C.

    2012-01-01

    Cupriavidus necator fixes CO{sub 2} through the Calvin-Benson-Bassham (CBB) cycle using electrons and energy obtained from the oxidation of H{sub 2}. Producing biodiesel-equivalent electrofuel from renewable CO{sub 2} and H{sub 2} has immense potential, especially if the fuel is compatible with the existing fuel infrastructure. This research addressed enhanced substrate utilization by focusing on two strategies: (1) optimizing transcriptional regulations to afford over-expression of Ribulose-1,5-bisphosphate carboxylase/oxygenase (RubisCO), the enzyme responsible for assimilation of CO{sub 2} into the CBB cycle; and (2) hydrogenase over-expression by introduction of additional copies of genes encoding a membrane-bound hydrogenase (MBH), a soluble hydrogenase (SH), and their maturation machinery to enhance oxidation of H{sub 2} to generate NAD(P)H and ATP required for CO{sub 2} fixation. Incorporation of these strategies into a single production strain resulted in 6-fold CO{sub 2} and 3-fold H{sub 2} uptake improvement, in vitro, with the overarching goal of providing abundant reducing equivalents towards the economic production of biodiesel in C. necator.

  9. Fundamental Study of the Oxidation Characteristics and Pollutant Emissions of Model Biodiesel Fuels

    SciTech Connect (OSTI)

    Feng, Q.; Wang, Y. L.; Egolfopoulos, Fokion N.; Tsotsis, T. T.

    2010-07-18

    In this study, the oxidation characteristics of biodiesel fuels are investigated with the goal of contributing toward the fundamental understanding of their combustion characteristics and evaluating the effect of using these alternative fuels on engine performance as well as on the environment. The focus of the study is on pure fatty acid methyl-esters (FAME,) that can serve as surrogate compounds for real biodiesels. The experiments are conducted in the stagnation-flow configuration, which allows for the systematic evaluation of fundamental combustion and emission characteristics. In this paper, the focus is primarily on the pollutant emission characteristics of two C{sub 4} FAMEs, namely, methyl-butanoate and methyl-crotonate, whose behavior is compared with that of n-butane and n-pentane. To provide insight into the mechanisms of pollutant formation for these fuels, the experimental data are compared with computed results using a model with consistent C1-C4 oxidation and NOx formation kinetics.

  10. Biodiesel Drives Florida Power & Light's EPAct Alternative Compliance Strategy; EPAct Alternative Fuel Transportation Program: Success Story (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-05-01

    This success story highlights how Florida Power & Light Company has successfully complied with the Energy Policy Act of 1992 (EPAct) through Alternative Compliance using biodiesel technologies and how it has become a biofuel leader, reducing petroleum use and pollutant emissions throughout Florida.

  11. Developing New Alternative Energy in Virginia: Bio-Diesel from Algae

    SciTech Connect (OSTI)

    Hatcher, Patrick

    2012-03-29

    The overall objective of this study was to select chemical processing equipment, install and operate that equipment to directly convert algae to biodiesel via a reaction patented by Old Dominion University (Pat. No. US 8,080,679B2). This reaction is a high temperature (250- 330{degrees}C) methylation reaction utilizing tetramethylammonium hydroxide (TMAH) to produce biodiesel. As originally envisioned, algal biomass could be treated with TMAH in methanol without the need to separately extract triacylglycerides (TAG). The reactor temperature allows volatilization and condensation of the methyl esters whereas the spent algae solids can be utilized as a high-value fertilizer because they are minimally charred. During the course of this work and immediately prior to commencing, we discovered that glycerol, a major by-product of the conventional transesterification reaction for biofuels, is not formed but rather three methoxylated glycerol derivatives are produced. These derivatives are high-value specialty green chemicals that strongly upgrade the economics of the process, rendering this approach as one that now values the biofuel only as a by-product, the main value products being the methoxylated glycerols. A horizontal agitated thin-film evaporator (one square foot heat transfer area) proved effective as the primary reactor facilitating the reaction and vaporization of the products, and subsequent discharge of the spent algae solids that are suitable for supplementing petrochemicalbased fertilizers for agriculture. Because of the size chosen for the reactor, we encountered problems with delivery of the algal feed to the reaction zone, but envision that this problem could easily disappear upon scale-up or can be replaced economically by incorporating an extraction process. The objective for production of biodiesel from algae in quantities that could be tested could not be met, but we implemented use of soybean oil as a surrogate TAG feed to overcome this limitation

  12. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Transit Bus: Fifth Evaluation Report SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report and Appendices SunLine Transit Agency Fuel Cell Transit Bus: ...

  13. Alternative fuel transit buses: Interim results from the National Renewable Energy Laboratory (NREL) Vehicle Evaluation Program

    SciTech Connect (OSTI)

    Motta, R.; Norton, P.; Kelly, K.J.; Chandler, K.

    1995-05-01

    The transit bus program is designed to provide a comprehensive study of the alternative fuels currently used by the transit bus industry. The study focuses on the reliability, fuel economy, operating costs, and emissions of vehicles running on the various fuels and alternative fuel engines. The alternative fuels being tested are methanol, ethanol, biodiesel and natural gas. The alternative fuel buses in this program use the most common alternative fuel engines from the heavy-duty engine manufacturers. Data are collected in four categories: Bus and route descriptions; Bus operating data; Emissions data; and, Capital costs. The goal is to collect 18 months of data on each test bus. This report summarizes the interim results from the project to date. The report addresses performance and reliability, fuel economy, costs, and emissions of the busses in the program.

  14. Biodiesel Emissions Testing with a Modern Diesel Engine - Equipment Only: Cooperative Research and Development Final Report, CRADA Number CRD-10-399

    SciTech Connect (OSTI)

    Williams, A.

    2013-06-01

    To evaluate the emissions and performance impact of biodiesel in a modern diesel engine equipped with a diesel particulate filter. This testing is in support of the Non-Petroleum Based Fuels (NPBF) 2010 Annual Operating Plan (AOP).

  15. Transitioning Kentucky Off Oil: An Interview with Clean Cities...

    Broader source: Energy.gov (indexed) [DOE]

    Helps Nonprofit Cut Fuel Costs with Propane Boise Buses Running Strong with Clean ... replace engines on the company's ground equipment, as well as use propane and biodiesel. ...

  16. Gas turbine combustor transition

    DOE Patents [OSTI]

    Coslow, Billy Joe; Whidden, Graydon Lane

    1999-01-01

    A method of converting a steam cooled transition to an air cooled transition in a gas turbine having a compressor in fluid communication with a combustor, a turbine section in fluid communication with the combustor, the transition disposed in a combustor shell and having a cooling circuit connecting a steam outlet and a steam inlet and wherein hot gas flows from the combustor through the transition and to the turbine section, includes forming an air outlet in the transition in fluid communication with the cooling circuit and providing for an air inlet in the transition in fluid communication with the cooling circuit.

  17. Gas turbine combustor transition

    DOE Patents [OSTI]

    Coslow, B.J.; Whidden, G.L.

    1999-05-25

    A method is described for converting a steam cooled transition to an air cooled transition in a gas turbine having a compressor in fluid communication with a combustor, a turbine section in fluid communication with the combustor, the transition disposed in a combustor shell and having a cooling circuit connecting a steam outlet and a steam inlet and wherein hot gas flows from the combustor through the transition and to the turbine section, includes forming an air outlet in the transition in fluid communication with the cooling circuit and providing for an air inlet in the transition in fluid communication with the cooling circuit. 7 figs.

  18. Impact of Biodiesel on the Oxidation Kinetics and Morphology of Diesel Particulate

    SciTech Connect (OSTI)

    Strzelec, Andrea; Toops, Todd J; Daw, C Stuart

    2011-01-01

    We compare the oxidation characteristics of four different diesel particulates generated with a modern light-duty engine. The four particulates represent engine fueling with conventional ultra-low sulfur diesel (ULSD), biodiesel, and two intermediate blends of these fuels. The comparisons discussed here are based on complementary measurements implemented in a laboratory micro-reactor, including temperature programmed desorption and oxidation, pulsed isothermal oxidation, and BET surface area. From these measurements we have derived models that are consistent with the observed oxidation reactivity differences. When accessible surface area effects are properly accounted for, the oxidation kinetics of the fixed carbon components were found to consistently exhibit an Arrhenius activation energy of 113 6 kJ/mol. Release of volatile carbon from the as-collected particulate appears to follow a temperaturedependent rate law.

  19. Recent Advances in Detailed Chemical Kinetic Models for Large Hydrocarbon and Biodiesel Transportation Fuels

    SciTech Connect (OSTI)

    Westbrook, C K; Pitz, W J; Curran, H J; Herbinet, O; Mehl, M

    2009-03-30

    n-Hexadecane and 2,2,4,4,6,8,8-heptamethylnonane represent the primary reference fuels for diesel that are used to determine cetane number, a measure of the ignition property of diesel fuel. With the development of chemical kinetics models for these two primary reference fuels for diesel, a new capability is now available to model diesel fuel ignition. Also, we have developed chemical kinetic models for a whole series of large n-alkanes and a large iso-alkane to represent these chemical classes in fuel surrogates for conventional and future fuels. Methyl decanoate and methyl stearate are large methyl esters that are closely related to biodiesel fuels, and kinetic models for these molecules have also been developed. These chemical kinetic models are used to predict the effect of the fuel molecule size and structure on ignition characteristics under conditions found in internal combustion engines.

  20. Experimental and numerical assessment of on-road diesel and biodiesel emissions

    SciTech Connect (OSTI)

    West, B.H.; Storey, J.M.; Lewis, S.A.; Devault, G.L.; Green, J.B.; Sluder, C.S.; Hodgson, J.W.; Moore, B.L.

    1997-12-31

    The Federal Highway Administration`s TRAF-series of models use modal data to estimate fuel consumption and emissions for different traffic scenarios. A process for producing data-based modal models from road and dynamometer measurements has been developed and applied to a number of light-duty gasoline vehicles for the FHWA. The resulting models, or lookup tables, provide emissions and fuel consumption as functions of vehicle speed and acceleration. Surface plots of the data provide a valuable visual benchmark of the emissions characteristics of the vehicles. Due to the potential fuel savings in the light-duty sector via introduction of diesels, and the concomitant growing interest in diesel engine emissions, the measurement methodology has been extended under DOE sponsorship to include a diesel pickup truck running a variety of fuels, including number 2 diesel fuel, biodiesel, Fischer-Tropsch, and blends.

  1. Detailed chemical kinetic mechanism for the oxidation of biodiesel fuels blend surrogate

    SciTech Connect (OSTI)

    Herbinet, Olivier; Pitz, William J.; Westbrook, Charles K.

    2010-05-15

    Detailed chemical kinetic mechanisms were developed and used to study the oxidation of two large unsaturated esters: methyl-5-decenoate and methyl-9-decenoate. These models were built from a previous methyl decanoate mechanism and were compared with rapeseed oil methyl esters oxidation experiments in a jet-stirred reactor. A comparative study of the reactivity of these three oxygenated compounds was performed and the differences in the distribution of the products of the reaction were highlighted showing the influence of the presence and the position of a double bond in the chain. Blend surrogates, containing methyl decanoate, methyl-5-decenoate, methyl-9-decenoate and n-alkanes, were tested against rapeseed oil methyl esters and methyl palmitate/n-decane experiments. These surrogate models are realistic kinetic tools allowing the study of the combustion of biodiesel fuels in diesel and homogeneous charge compression ignition engines. (author)

  2. ZnO nanoparticle catalysts for use in biodiesel production and method of making

    DOE Patents [OSTI]

    Yan, Shuli; Salley, Steven O; Ng, K. Y. Simon

    2014-11-25

    A method of forming a biodiesel product and a heterogeneous catalyst system used to form said product that has a high tolerance for the presence of water and free fatty acids (FFA) in the oil feedstock is disclosed. This catalyst system may simultaneously catalyze both the esterification of FAA and the transesterification of triglycerides present in the oil feedstock. The catalyst system is comprised of a mixture of zinc oxide and a second metal oxide. The zinc oxide includes a mixture of amorphous zinc oxide and zinc oxide nanocrystals, the zinc nanocrystals having a mean grain size between about 20 and 80 nanometers with at least one of the nanocrystals including a mesopore having a diameter of about 5 to 15 nanometers. Preferably, the second metal oxide is a lanthanum oxide, the lanthanum oxide being selected as one from the group of La.sub.2CO.sub.5, LaOOH, and combinations or mixtures thereof.

  3. Supported catalyst systems and method of making biodiesel products using such catalysts

    DOE Patents [OSTI]

    Kim, Manhoe; Yan, Shuli; Salley, Steven O.; Ng, K. Y. Simon

    2015-10-20

    A heterogeneous catalyst system, a method of preparing the catalyst system and a method of forming a biodiesel product via transesterification reactions using the catalyst system is disclosed. The catalyst system according to one aspect of the present disclosure represents a class of supported mixed metal oxides that include at least calcium oxide and another metal oxide deposited on a lanthanum oxide or cerium oxide support. Preferably, the catalysts include CaO--CeO.sub.2ZLa.sub.2O.sub.3 or CaO--La.sub.2O.sub.3/CeO.sub.2. Optionally, the catalyst may further include additional metal oxides, such as CaO--La.sub.2O.sub.3--GdOxZLa.sub.2O.sub.3.

  4. Federal and State Ethanol and Biodiesel Requirements (released in AEO2007)

    Reports and Publications (EIA)

    2007-01-01

    The Energy Policy Act 2005 requires that the use of renewable motor fuels be increased from the 2004 level of just over 4 billion gallons to a minimum of 7.5 billion gallons in 2012, after which the requirement grows at a rate equal to the growth of the gasoline pool. The law does not require that every gallon of gasoline or diesel fuel be blended with renewable fuels. Refiners are free to use renewable fuels, such as ethanol and biodiesel, in geographic regions and fuel formulations that make the most sense, as long as they meet the overall standard. Conventional gasoline and diesel can be blended with renewables without any change to the petroleum components, although fuels used in areas with air quality problems are likely to require adjustment to the base gasoline or diesel fuel if they are to be blended with renewables.

  5. Detailed chemical kinetic mechanism for the oxidation of biodiesel fuels blend surrogate.

    SciTech Connect (OSTI)

    Herbinet, O; Pitz, W J; Westbrook, C K

    2009-07-21

    Detailed chemical kinetic mechanisms were developed and used to study the oxidation of two large unsaturated esters: methyl-5-decenoate and methyl-9-decenoate. These models were built from a previous methyl decanoate mechanism and were compared with rapeseed oil methyl esters oxidation experiments in a jet stirred reactor. A comparative study of the reactivity of these three oxygenated compounds was performed and the differences in the distribution of the products of the reaction were highlighted showing the influence of the presence and the position of a double bond in the chain. Blend surrogates, containing methyl decanoate, methyl-5-decenoate, methyl-9-decenoate and n-alkanes, were tested against rapeseed oil methyl esters and methyl palmitate/n-decane experiments. These surrogate models are realistic kinetic tools allowing the study of the combustion of biodiesel fuels in diesel and homogeneous charge compression ignition engines.

  6. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Report and Appendices | Department of Energy 2.pdf (1.02 MB) More Documents & Publications Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report - Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results

  7. Physical and chemical comparison of soot in hydrocarbon and biodiesel fuel diffusion flames: A study of model and commercial fuels

    SciTech Connect (OSTI)

    Matti Maricq, M.

    2011-01-15

    Data are presented to compare soot formation in both surrogate and practical fatty acid methyl ester biodiesel and petroleum fuel diffusion flames. The approach here uses differential mobility analysis to follow the size distributions and electrical charge of soot particles as they evolve in the flame, and laser ablation particle mass spectrometry to elucidate their composition. Qualitatively, these soot properties exhibit a remarkably similar development along the flames. The size distributions begin as a single mode of precursor nanoparticles, evolve through a bimodal phase marking the onset of aggregate formation, and end in a self preserving mode of fractal-like particles. Both biodiesel and hydrocarbon fuels yield a common soot composition dominated by C{sub x}H{sub y}{sup +} ions, stabilomer PAHs, and fullerenes in the positive ion mass spectrum, and C{sub x}{sup -} and C{sub 2x}H{sup -} in the negative ion spectrum. These ion intensities initially grow with height in the diffusion flames, but then decline during later stages, consistent with soot carbonization. There are important quantitative differences between fuels. The surrogate biodiesel fuel methyl butanoate substantially reduces soot levels, but soot formation and evolution in this flame are delayed relative to both soy and petroleum fuels. In contrast, soots from soy and hexadecane flames exhibit nearly quantitative agreement in their size distribution and composition profiles with height, suggesting similar soot precursor chemistry. (author)

  8. Screening of industrial wastewaters as feedstock for the microbial production of oils for biodiesel production and high-quality pigments

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Schneider, Teresa; Graeff-Honninger, Simone; French, William Todd; Hernandez, Rafael; Claupein, Wilhelm; Holmes, William E.; Merkt, Nikolaus

    2012-01-01

    The production of biodiesel has notably increased over the past decade. Currently, plant oil is the main feedstock for biodiesel production, but, due to concerns related to the competition with food production, alternative oil feedstocks have to be found. Oleaginous yeasts are known to produce high amounts of lipids, but no integrated process from microbial fermentation to final biodiesel production has reached commercial realization yet due to economic constraints. Therefore, growth and lipid production of red yeast Rhodotorula glutinis was tested on low-cost substrates, namely, wastewaters from potato, fruit juice, and lettuce processing. Additionally, the production of carotenoids as high-valuemore » by-products was examined. All evaluated wastewaters met the general criteria for microbial lipid production. However, no significant increase in lipid content was observed, probably due to lack of available carbon in wastewaters from fruit juice and lettuce processing, and excess of available nitrogen in potato processing wastewater, respectively. During growth on wastewaters from fruit juice and lettuce processing the carotenoid content increased significantly in the first 48 hours. The relations between carbon content, nitrogen content, and carotenoid production need to be further assessed. For economic viability, lipid and carotenoid production needs to be increased significantly. Lastly, the screening of feedstocks should be extended to other wastewaters.« less

  9. Transit Users Group Supports Transit Agencies with Natural Gas Buses

    SciTech Connect (OSTI)

    Not Available

    2002-04-01

    Fact sheet describes the benefits of the Transit Users Group, which supports transit groups with compressed natural gas (CNG) buses.

  10. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Report and Appendices | Department of Energy 1.pdf (875.56 KB) More Documents & Publications SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices

  11. Hydrogen Transition Study

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Transition Study Paul N. Leiby, David L. Greene, Zhenhong Lin, David Bowman, Sujit Das Oak Ridge National Laboratory July 26, 2010 Presented at "Overview of Light-duty Vehicle Studies" Washington, DC Workshop 2 Overview * Some lessons learned from analyzing fuel transitions - Find barriers to transitions significant, but progress being made - Review work by DOE-sponsored team, highlighting key factors * Note some similar findings by NRC * Find important role for policy - in advancing

  12. Site Transition Guidance

    Office of Environmental Management (EM)

    Site Transition Guidance March 2010 Office of Environmental Management U.S. Department of Energy Washington D. C. 20585 Standard Review Plan (SRP) Technical Framework for EM...

  13. Hydrogen Transition Infrastructure Analysis

    SciTech Connect (OSTI)

    Melendez, M.; Milbrandt, A.

    2005-05-01

    Presentation for the 2005 U.S. Department of Energy Hydrogen Program review analyzes the hydrogen infrastructure needed to accommodate a transitional hydrogen fuel cell vehicle demand.

  14. FAQs for Survey Form EIA-821

    Gasoline and Diesel Fuel Update (EIA)

    of your email. Should I report biodiesel on the EIA-821 survey? Report B2, B5, or B20 biodiesel under the primary fuel type with which it was blended and the type of customer...

  15. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Report and Appendices | Department of Energy Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three new diesel buses operating from the same location. 45670-1.pdf (836.62 KB) More Documents & Publications SunLine Transit Agency Fuel Cell Transit

  16. Lithium modified zeolite synthesis for conversion of biodiesel-derived glycerol to polyglycerol

    SciTech Connect (OSTI)

    Ayoub, Muhammad; Abdullah, Ahmad Zuhairi; Inayat, Abrar

    2014-10-24

    Basic zeolite has received significant attention in the catalysis community. These zeolites modified with alkaline are the potential replacement for existing zeolite catalysts due to its unique features with added advantages. The present paper covers the preparation of lithium modified zeolite Y (Li-ZeY) and its activity for solvent free conversion of biodiesel-derived glycerol to polyglycerol via etherification process. The modified zeolite was well characterized by X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and Nitrogen Adsorption. The SEM images showed that there was no change in morphology of modified zeolite structure after lithium modification. XRD patterns showed that the structure of zeolite was sustained after lithium modification. The surface properties of parent and modified zeolite was also observed N{sub 2} adsortion-desorption technique and found some changes in surface area and pore size. In addition, the basic strength of prepared materials was measured by Hammet indicators and found that basic strength of Li-ZeY was highly improved. This modified zeolite was found highly thermal stable and active heterogamous basic catalyst for conversion of solvent free glycerol to polyglycerol. This reaction was conducted at different temperatures and 260 C was found most active temperature for this process for reaction time from 6 to 12 h over this basic catalyst in the absence of solvent.

  17. IDAHO BIODIESEL INFRASTRUCTURE PROJECT DOE'S INITIATIVE ON COOPERATIVE PROGRAMS WITH STATES FOR RESEARCH, DEVELOPMENT AND DEMONSTRATION GRANT NO. DE-FC36-02GO12021. Final report

    SciTech Connect (OSTI)

    CROCKETT, JOHN

    2006-12-31

    The Idaho Energy Division issued a Request for Proposal (RFP) on March 14, 2006, inviting qualified licensed fuel wholesalers, fuel retailers, and vehicle fleet operators to provide proposals to construct and/or install infrastructure for biodiesel utilization in Idaho. The intent was to improve the ability of private and/or non-Federal public entities in Idaho to store, transport, or offer for sale biodiesel within the state. The RFP provided up $100,000 for co-funding the projects with a minimum 50% cash cost match. Four contracts were subsequetnly awarded that resulted in three new bidodiesel storage facilities immediately serving about 45 fueling stations from Sandpoint to Boise. The project also attracted considerable media attention and Idaho became more knowledgeable about biodiesel.

  18. Alternative Fueling Station Locator | Department of Energy

    Energy Savers [EERE]

    End: Go Fuel: All Fuels Biodiesel (B20 and above) Compressed Natural Gas Electric Ethanol (E85) Hydrogen Liquefied Natural Gas (LNG) Liquefied Petroleum Gas (Propane) more...

  19. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Warranty Requirement All new state government diesel vehicles must have a manufacturer's warranty that allows the use of biodiesel blends of 20% (B20) in the vehicle. This ...

  20. Analysis of Coconut-Derived Biodiesel and Conventional Diesel Fuel Samples from the Philippines: Task 2 Final Report

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Analysis of Coconut-Derived Biodiesel and Conventional Diesel Fuel Samples from the Philippines Task 2 Final Report T.L. Alleman and R.L. McCormick Milestone Report NREL/MP-540-38643 January 2006 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 Analysis of Coconut-

  1. Federal Transit Administration-National Transit Database (NTD...

    Open Energy Info (EERE)

    Type: Dataset User Interface: Website Website: www.ntdprogram.govntdprogram Cost: Free Language: English Federal Transit Administration-National Transit Database (NTD)...

  2. Alternative fuel transit buses

    SciTech Connect (OSTI)

    Motta, R.; Norton, P.; Kelly, K.

    1996-10-01

    The National Renewable Energy Laboratory (NREL) is a U.S. Department of Energy (DOE) national laboratory; this project was funded by DOE. One of NREL`s missions is to objectively evaluate the performance, emissions, and operating costs of alternative fuel vehicles so fleet managers can make informed decisions when purchasing them. Alternative fuels have made greater inroads into the transit bus market than into any other. Each year, the American Public Transit Association (APTA) surveys its members on their inventory and buying plans. The latest APTA data show that about 4% of the 50,000 transit buses in its survey run on an alternative fuel. Furthermore, 1 in 5 of the new transit buses that members have on order are alternative fuel buses. This program was designed to comprehensively and objectively evaluate the alternative fuels in use in the industry.

  3. Oligocyclopentadienyl transition metal complexes

    SciTech Connect (OSTI)

    de Azevedo, Cristina G.; Vollhardt, K. Peter C.

    2002-01-18

    Synthesis, characterization, and reactivity studies of oligocyclopentadienyl transition metal complexes, namely those of fulvalene, tercyclopentadienyl, quatercyclopentadienyl, and pentacyclopentadienyl(cyclopentadienyl) are the subject of this account. Thermal-, photo-, and redox chemistries of homo- and heteropolynuclear complexes are described.

  4. Matter in transition

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Anderson, Lara B.; Gray, James; Raghuram, Nikhil; Taylor, Washington

    2016-04-13

    In this study, we explore a novel type of transition in certain 6D and 4D quantum field theories, in which the matter content of the theory changes while the gauge group and other parts of the spectrum remain invariant. Such transitions can occur, for example, for SU(6) and SU(7) gauge groups, where matter fields in a three-index antisymmetric representation and the fundamental representation are exchanged in the transition for matter in the two-index antisymmetric representation. These matter transitions are realized by passing through superconformal theories at the transition point. We explore these transitions in dual F-theory and heterotic descriptions, wheremore » a number of novel features arise. For example, in the heterotic description the relevant 6D SU(7) theories are described by bundles on K3 surfaces where the geometry of the K3 is constrained in addition to the bundle structure. On the F-theory side, non-standard representations such as the three-index antisymmetric representation of SU(N) require Weierstrass models that cannot be realized from the standard SU(N) Tate form. We also briefly describe some other situations, with groups such as Sp(3), SO(12), and SU(3), where analogous matter transitions can occur between different representations. For SU(3), in particular, we find a matter transition between adjoint matter and matter in the symmetric representation, giving an explicit Weierstrass model for the F-theory description of the symmetric representation that complements another recent analogous construction.« less

  5. Site Transition Plan Guidance | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Plan Guidance Site Transition Plan Guidance Site Transition Plan Guidance PDF icon Site Transition Plan Guidance More Documents & Publications Development of Site Transition Plan, ...

  6. Impact of rail pressure and biodiesel fueling on the particulate morphology and soot nanostructures from a common-rail turbocharged direct injection diesel engine

    SciTech Connect (OSTI)

    Ye, Peng; Vander Wal, Randy; Boehman, Andre L.; Toops, Todd J.; Daw, C. Stuart; Sun, Chenxi; Lapuerta, Magin; Agudelo, John

    2014-12-26

    The effect of rail pressure and biodiesel fueling on the morphology of exhaust particulate agglomerates and the nanostructure of primary particles (soot) was investigated with a common-rail turbocharged direct injection diesel engine. The engine was operated at steady state on a dynamometer running at moderate speed with both low (30%) and medium–high (60%) fixed loads, and exhaust particulate was sampled for analysis. Ultra-low sulfur diesel and its 20% v/v blends with soybean methyl ester biodiesel were used. Fuel injection occurred in a single event around top dead center at three different injection pressures. Exhaust particulate samples were characterized with TEM imaging, scanning mobility particle sizing, thermogravimetric analysis, Raman spectroscopy, and XRD analysis. Particulate morphology and oxidative reactivity were found to vary significantly with rail pressure and with biodiesel blend level. Higher biodiesel content led to increases in the primary particle size and oxidative reactivity but did not affect nanoscale disorder in the as-received samples. For particulates generated with higher injection pressures, the initial oxidative reactivity increased, but there was no detectable correlation with primary particle size or nanoscale disorder.

  7. Impact of rail pressure and biodiesel fueling on the particulate morphology and soot nanostructures from a common-rail turbocharged direct injection diesel engine

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ye, Peng; Vander Wal, Randy; Boehman, Andre L.; Toops, Todd J.; Daw, C. Stuart; Sun, Chenxi; Lapuerta, Magin; Agudelo, John

    2014-12-26

    The effect of rail pressure and biodiesel fueling on the morphology of exhaust particulate agglomerates and the nanostructure of primary particles (soot) was investigated with a common-rail turbocharged direct injection diesel engine. The engine was operated at steady state on a dynamometer running at moderate speed with both low (30%) and medium–high (60%) fixed loads, and exhaust particulate was sampled for analysis. Ultra-low sulfur diesel and its 20% v/v blends with soybean methyl ester biodiesel were used. Fuel injection occurred in a single event around top dead center at three different injection pressures. Exhaust particulate samples were characterized with TEMmore » imaging, scanning mobility particle sizing, thermogravimetric analysis, Raman spectroscopy, and XRD analysis. Particulate morphology and oxidative reactivity were found to vary significantly with rail pressure and with biodiesel blend level. Higher biodiesel content led to increases in the primary particle size and oxidative reactivity but did not affect nanoscale disorder in the as-received samples. For particulates generated with higher injection pressures, the initial oxidative reactivity increased, but there was no detectable correlation with primary particle size or nanoscale disorder.« less

  8. Impact of rail pressure and biodiesel fueling on the particulate morphology and soot nanostructures from a common-rail turbocharged direct injection diesel engine

    SciTech Connect (OSTI)

    Ye, Peng; Vander Wal, Randy; Boehman, Andre L.; Toops, Todd J.; Daw, C. Stuart; Sun, Chenxi; Lapuerta, Magin; Agudelo, John

    2014-12-26

    The effect of rail pressure and biodiesel fueling on the morphology of exhaust particulate agglomerates and the nanostructure of primary particles (soot) was investigated with a common-rail turbocharged direct injection diesel engine. The engine was operated at steady state on a dynamometer running at moderate speed with both low (30%) and mediumhigh (60%) fixed loads, and exhaust particulate was sampled for analysis. Ultra-low sulfur diesel and its 20% v/v blends with soybean methyl ester biodiesel were used. Fuel injection occurred in a single event around top dead center at three different injection pressures. Exhaust particulate samples were characterized with TEM imaging, scanning mobility particle sizing, thermogravimetric analysis, Raman spectroscopy, and XRD analysis. Particulate morphology and oxidative reactivity were found to vary significantly with rail pressure and with biodiesel blend level. Higher biodiesel content led to increases in the primary particle size and oxidative reactivity but did not affect nanoscale disorder in the as-received samples. For particulates generated with higher injection pressures, the initial oxidative reactivity increased, but there was no detectable correlation with primary particle size or nanoscale disorder.

  9. Examining hydrogen transitions.

    SciTech Connect (OSTI)

    Plotkin, S. E.; Energy Systems

    2007-03-01

    This report describes the results of an effort to identify key analytic issues associated with modeling a transition to hydrogen as a fuel for light duty vehicles, and using insights gained from this effort to suggest ways to improve ongoing modeling efforts. The study reported on here examined multiple hydrogen scenarios reported in the literature, identified modeling issues associated with those scenario analyses, and examined three DOE-sponsored hydrogen transition models in the context of those modeling issues. The three hydrogen transition models are HyTrans (contractor: Oak Ridge National Laboratory), MARKAL/DOE* (Brookhaven National Laboratory), and NEMS-H2 (OnLocation, Inc). The goals of these models are (1) to help DOE improve its R&D effort by identifying key technology and other roadblocks to a transition and testing its technical program goals to determine whether they are likely to lead to the market success of hydrogen technologies, (2) to evaluate alternative policies to promote a transition, and (3) to estimate the costs and benefits of alternative pathways to hydrogen development.

  10. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Report and Appendices | Department of Energy Second Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three new diesel buses operating from the same location. 45670-2.pdf (1.25 MB) More Documents & Publications Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third

  11. Transition Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Transition Plan Transition Plan This template is used to define the objectives, resources, and plans for systems transition, e.g., scheduling the transition from acceptance testing to full operational status, identifying staffing and training needs for system operation and maintenance, planning for data migration, etc Transition Plan (35.86 KB) More Documents & Publications System Design Feasibility Study Report Template Configuration Management Plan

  12. Variational transition state theory

    SciTech Connect (OSTI)

    Truhlar, D.G.

    1993-12-01

    This research program involves the development of variational transition state theory (VTST) and semiclassical tunneling methods for the calculation of gas-phase reaction rates and selected applications. The applications are selected for their fundamental interest and/or their relevance to combustion.

  13. Transition Implementation Guide

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2001-04-24

    This Guide was prepared to aid in the development, planning, and implementation of requirements and activities during the transition phase at Department of Energy (DOE) facilities that have been declared or are forecast to become excess to any future mission requirements.

  14. Effect of Biodiesel Blending on the Speciation of Soluble Organic Fraction from a Light Duty Diesel Engine

    SciTech Connect (OSTI)

    Strzelec, Andrea; Storey, John Morse; Lewis Sr, Samuel Arthur; Daw, C Stuart; Foster, Prof. Dave; Rutland, Prof. Christopher J.

    2010-01-01

    Soy methyl ester (SME) biodiesel was volumetrically blended with 2007 certification ultra low sulfur diesel (ULSD) fuel and run in a 1.7L direct-injection common rail diesel engine at one speed-load point (1500rpm, 2.6bar BMEP). Engine fueling rate and injection timing were adjusted to maintain a constant load, while particulate samples were collected in a diesel particulate filter (DPF) and with a dilution tunnel sampling train. The samples collected at these two locations were found to contain different levels of soluble organic fraction (SOF) and the different hydrocarbon species in the SOF. This observation indicates that traditional SOF measurements, in light of the specific sampling procedure used, may not be appropriate to DPF applications.

  15. Preparation and characterization of magnetic CsH{sub 2}PW{sub 12}O{sub 40}/Fe–SiO{sub 2} nanocatalysts for biodiesel production

    SciTech Connect (OSTI)

    Feyzi, Mostafa; Nourozi, Leila; Zakarianezhad, Mohammad

    2014-12-15

    Graphical abstract: In this study, a series of magnetic CsH{sub 2}PW{sub 12}O{sub 40}/Fe–SiO{sub 2} nanocatalysts were prepared and tested for biodiesel production. The best operational conditions were CH3OH/oil = 12/1 at 60 °C with mechanical stirring, the biodiesel yield reaches to 81% in 4 h. Also notably, recovery of the catalyst can be achieved easily with the help of an external magnet with no need for expensive ultracentrifugation. - Highlights: • Effects of preparation conditions for biodiesel production were studied. • The CsH{sub 2}PW{sub 12}O{sub 40}/Fe–SiO{sub 2} catalyst is efficient catalyst for biodiesel production. • The reaction conditions were found methanol/oil = 12/1, T = 60 °C. - Abstract: The magnetic CsH{sub 2}PW{sub 12}O{sub 40}/Fe–SiO{sub 2} nanocatalysts were prepared via combination of sol–gel and impregnation methods. The effects of different H{sub 3}PW{sub 12}O{sub 40}/(Fe–SiO{sub 2}) weight percentage, loading of Cs as a promotor and calcination conditions on the catalytic performance has been studied. It was found that the catalyst with H{sub 3}PW{sub 12}O{sub 40}/Fe–SiO{sub 2} = 4 wt.% and Cs = 2 wt.% is an optimal catalyst for biodiesel production. The activity of optimal catalyst was studied in different operational conditions. The best operational conditions were CH{sub 3}OH/oil = 12/1 at 60 °C with mechanical stirring rate of 500 rpm and the biodiesel yield reaches to 81% in 4 h. Characterization of catalysts was carried out by using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FT-IR), vibrating sample magnetometry (VSM), N{sub 2} adsorption–desorption measurements methods, Thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC)

  16. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evaluation Results | Department of Energy Preliminary Evaluation Results Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results This report provides preliminary results from the evaluation of a protoptye fuel cell transit bus operating at Connecticut Transit in Hartford. Included are descriptions of the planned fuel cell bus demonstration and equipment, early results and agency experience are also provided. 43847.pdf (1.59 MB) More Documents & Publications

  17. transitional | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    from Flue Gas by Phase Transitional Absorption Project No.: FG26-05NT42488 Basic Illustration of the Phase Transitional Absorption Process. Basic Illustration of the Phase Transitional Absorption Process. Hampton University researched a novel carbon dioxide (CO2) absorption concept, phase transitional absorption, that utilizes a two-part proprietary absorbent consisting of an activated agent dissolved in a solvent. Phase separation of the activated agent from the chemical solvent occurs during

  18. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Preliminary Evaluation Results

    Broader source: Energy.gov [DOE]

    This report provides an evaluation of three prototype fuel cell-powered transit buses operating at AC Transit in Oakland, California, and six baseline diesel buses similar in design to the fuel cell buses.

  19. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Preliminary Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2007-03-01

    This report provides an evaluation of three prototype fuel cell-powered transit buses operating at AC Transit in Oakland, California, and six baseline diesel buses similar in design to the fuel cell buses.

  20. Site Transition Process Upon Cleanup Completion | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Process Upon Cleanup Completion Site Transition Process Upon Cleanup Completion Site Transition Process Upon Cleanup Completion PDF icon Site Transition Process Upon Cleanup ...

  1. Transition of Sites from Environmental Management Memorandum...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Transition of Sites from Environmental Management Memorandum of Understanding Transition of Sites from Environmental Management Memorandum of Understanding Transition of Sites from ...

  2. Site Transition Framework | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Site Transition Framework (April 2004) PDF icon Site Transition Framework More Documents & Publications Process for Transition of Uranium Mill Tailings Radiation Control Act Title ...

  3. Clean Cities Now, Vol. 19, No. 1, Summer 2015: Biodiesel Scores Big with Fleets Nationwide (Newsletter), Clean Cities, Energy Efficiency & Renewable Energy (EERE)

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Vol. 19, No. 1 Summer 2015 Clean Cities Now Inside: Bakery Turns to Propane for Sustainable Transportation Solution California Coordinator Educates Dealers about Plugging in to PEVs Coalitions Step Up to Manage Air Quality Funds for Fleets Maintaining Focus on Niche Market Fleets Biodiesel Scores Big with Fleets Nationwide Dennis A. Smith National Clean Cities Director Linda Bluestein National Clean Cities Co-Director Welcome We hope you enjoy this latest edition of Clean Cities Now, the

  4. Alternative Fuel Transit Buses

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    35th St. Craig Ave. Alt Blvd. Colucci Pkwy. Final Results from the National Renewable Energy Laboratory Vehicle Evaluation Program Final Results from the National Renewable Energy Laboratory Vehicle Evaluation Program N T Y A U E O F E N E R G D E P A R T M E N I T E D S T A T S O F A E R I C M Produced for the U.S. Department of Energy (DOE) by the National Renewable Energy Laboratory (NREL), a U.S. DOE national laboratory Transit Buses Alternative Fuel Alternative Fuel Final Results from the

  5. Transition Metal Switchable Mirror

    ScienceCinema (OSTI)

    None

    2013-05-29

    The switchable-mirrors technology was developed by Tom Richardson and Jonathan Slack of Berkeley Lab's Environmental Energy Technologies Division. By using transition metals rather than the rare earth metals used in the first metal-hydride switchable mirrors, Richardson and Slack were able to lower the cost and simplify the manufacturing process. Energy performance is improved as well, because the new windows can reflect or transmit both visible and infrared light. Besides windows for offices and homes, possible applications include automobile sunroofs, signs and displays, aircraft windows, and spacecraft. More information at: http://windows.lbl.gov/materials/chromogenics/default.htm

  6. Transition Metal Switchable Mirror

    ScienceCinema (OSTI)

    None

    2010-01-08

    The switchable-mirrors technology was developed by Tom Richardson and Jonathan Slack of Berkeley Lab's Environmental Energy Technologies Division. By using transition metals rather than the rare earth metals used in the first metal-hydride switchable mirrors, Richardson and Slack were able to lower the cost and simplify the manufacturing process. Energy performance is improved as well, because the new windows can reflect or transmit both visible and infrared light. Besides windows for offices and homes, possible applications include automobile sunroofs, signs and displays, aircraft windows, and spacecraft.

  7. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2008-10-01

    This report provides preliminary results from a National Renewable Energy Laboratory evaluation of a protoptye fuel cell transit bus operating at Connecticut Transit in Hartford. Included are descriptions of the planned fuel cell bus demonstration and equipment; early results and agency experience are also provided.

  8. Targeted Enhancement of H2 and CO2 Uptake for Autotrophic Production of Biodiesel in the Lithoautotrophic Bacterium Ralsonia Eutropha

    SciTech Connect (OSTI)

    Eckert, C. A.; Sullivan, R.; Johnson, C.; Yu, J.; Maness, P. C.

    2013-01-01

    CO2 and H2 are promising feedstocks for production of valuable biocompounds. Ralstonia eutropha utilizes these feedstocks to generate energy (ATP) and reductant (NAD(P)H) via oxidation of H2 by a membrane-bound (MBH) and a soluble hydrogenase (SH) for CO2 fixation by the Calvin-Benson-Bassham (CBB) cycle. Increased expression of the enzyme that fixes CO2 (RubisCO) resulted in 6-fold activity improvement in vitro, while increased expression of the MBH operon or the SH operon plus MBH operon maturation factors necessary for activity resulted in a 10-fold enhancement. Current research involves genetic manipulation of two endogenous cbb operons for increased expression, analysis of expression and activity of CBB/MBH/SH, cofactor ratios, and downstream products during autotrophic growth in control versus enhanced strains, and development of strategies for long-term, optimal overexpression. These studies will improve our understanding of autotrophic metabolism and provide a chassis strain for autotrophic production of biodiesel and other valuable carbon biocompounds.

  9. Biodiesel versus diesel exposure: Enhanced pulmonary inflammation, oxidative stress, and differential morphological changes in the mouse lung

    SciTech Connect (OSTI)

    Yanamala, Naveena; Birch, M. Eileen; Kisin, Elena; Bugarski, Aleksandar D.

    2013-10-15

    The use of biodiesel (BD) or its blends with petroleum diesel (D) is considered to be a viable approach to reduce occupational and environmental exposures to particulate matter (PM). Due to its lower particulate mass emissions compared to D, use of BD is thought to alleviate adverse health effects. Considering BD fuel is mainly composed of unsaturated fatty acids, we hypothesize that BD exhaust particles could induce pronounced adverse outcomes, due to their ability to readily oxidize. The main objective of this study was to compare the effects of particles generated by engine fueled with neat BD and neat petroleum-based D. Biomarkers of tissue damage and inflammation were significantly elevated in lungs of mice exposed to BD particulates. Additionally, BD particulates caused a significant accumulation of oxidatively modified proteins and an increase in 4-hydroxynonenal. The up-regulation of inflammatory cytokines/chemokines/growth factors was higher in lungs upon BD particulate exposure. Histological evaluation of lung sections indicated presence of lymphocytic infiltrate and impaired clearance with prolonged retention of BD particulate in pigment laden macrophages. Taken together, these results clearly indicate that BD exhaust particles could exert more toxic effects compared to D. - Highlights: • Exposure of mice to BDPM caused higher pulmonary toxicity compared to DPM. • Oxidative stress and inflammation were higher in BD vs to D exposed mice. • Inflammatory lymphocyte infiltrates were seen only in lungs of mice exposed to BD. • Ineffective clearance, prolonged PM retention was present only after BD exposure.

  10. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report

    Broader source: Energy.gov [DOE]

    This report describes operations at Alameda-Contra Costa Transit district for three protoype fuel cell buses and six diesel buses operating from the same location.

  11. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report- Appendices

    Broader source: Energy.gov [DOE]

    This report describes operations at Alameda-Contra Costa Transit district for three protoype fuel cell buses and six diesel buses operating from the same location.

  12. Energy Transition Initiative: Islands Playbook

    Broader source: Energy.gov [DOE]

    The Island Energy Playbook provides an action-oriented guide to successfully initiating, planning, and completing a transition to an energy system that primarily relies on local resources to eliminate a dependence on one or two imported fuels. It is intended to serve as a readily available framework that any community can adapt to organize its own energy transition effort.

  13. Alternative Fuels Data Center: Mass Transit

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Mass Transit to someone by E-mail Share Alternative Fuels Data Center: Mass Transit on Facebook Tweet about Alternative Fuels Data Center: Mass Transit on Twitter Bookmark Alternative Fuels Data Center: Mass Transit on Google Bookmark Alternative Fuels Data Center: Mass Transit on Delicious Rank Alternative Fuels Data Center: Mass Transit on Digg Find More places to share Alternative Fuels Data Center: Mass Transit on AddThis.com... More in this section... Idle Reduction Parts & Equipment

  14. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation...

    Energy Savers [EERE]

    Fourth Evaluation Report and Appendices SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report and Appendices This report describes operations at SunLine Transit ...

  15. Washington Metropolitan Area Transit Authority: Compressed Natural Gas Transit Bus Evaluation

    SciTech Connect (OSTI)

    Chandler, K.; Eberts, E.; Melendez, M.

    2006-04-01

    Evaluates compressed natural gas (CNG) powered transit buses at Washington Metropolitan Area Transit Authority (WMATA), providing a comparison between them and standard diesel transit buses.

  16. Hierarchical Na-doped cubic ZrO{sub 2} synthesis by a simple hydrothermal route and its application in biodiesel production

    SciTech Connect (OSTI)

    Lara-Garca, Hugo A.; Romero-Ibarra, Issis C.; Pfeiffer, Heriberto

    2014-10-15

    Hierarchical growth of cubic ZrO{sub 2} phase was successfully synthesized via a simple hydrothermal process in the presence of different surfactants (cationic, non-ionic and anionic) and sodium hydroxide. The structural and microstructural characterizations of different ZrO{sub 2} powders were performed using various techniques, such as X-ray diffraction, transmission electron microscopy, N{sub 2} adsorptiondesorption, scanning electron microscopy and infrared. Results indicated that sodium addition stabilized the cubic ZrO{sub 2} phase by a Na-doping process, independently of the surfactant used. In contrast, microstructural characteristics varied as a function of the surfactant and sodium presence. In addition, water vapor (H{sub 2}O) and carbon dioxide (CO{sub 2}) sorption properties were evaluated on ZrO{sub 2} samples. Results evidenced that sample surface reactivity changed as a function of the sodium content. Finally, this surface reactivity was evaluated on the biodiesel transesterification reaction using the different synthesized samples, obtaining yields of 93%. - Graphical abstract: Hierarchical growth of cubic Na-ZrO{sub 2} phase was synthesized by hydrothermal processes in the presence of surfactants and sodium. Sodium addition stabilized the cubic phase by a Na-doping process, while the microstructural characteristics varied with surfactants. Finally, this surface reactivity was evaluated on the biodiesel transesterification reaction. - Highlights: Cubic-ZrO{sub 2} phase was synthesized via a simple hydrothermal process. ZrO{sub 2} structure and microstructures changed as a function of the surfactant. Cubic-ZrO{sub 2} phase was evaluated on the biodiesel transesterification reaction.

  17. SUBSIDY ENERGY EMPLOYEES TRANSIT (SEET)

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    SUBSIDY ENERGY EMPLOYEES TRANSIT (SEET) Decrease in the Transit Subsidy Per The American Taxpayer Relief Act of 2012, the maximum amount for the Transit Subsidy is due to decrease from $245 to $130 a month. This change is scheduled to take effect on January 1, 2014. Outlined below are actions that you must take to purchase your fare for January 2014. SmarTrip less than $130.00 Per Month No Action Required SmarTrip greater than $130.00 Per Month Action Required SmarTrip Participants The new

  18. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PDF icon 44646-2.pdf More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency Fuel Cell Transit ...

  19. Office of Technology Transitions- Overview

    Broader source: Energy.gov [DOE]

    The following fact sheet provides an overview of the Office of Technology Transitions (OTT). The Department of Energy (DOE) is one of the largest supporters of technology transfer in the federal...

  20. Lab transitions employee giving campaigns

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Lab transitions employee giving campaigns Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit Lab transitions employee giving campaigns This year's theme: "I Give Because..." November 1, 2013 Employee Giving Logo The theme for this year's employee giving campaigns Contact Community Programs Office Director Kurt Steinhaus Email Editor Linda Anderman Email During the past seven

  1. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report and

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Appendices | Department of Energy 44646-2.pdf (1.51 MB) More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report -- Appendices SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report -- Appendices

  2. Energy Transition Initiative Energy Scenario Tool | Department...

    Energy Savers [EERE]

    Energy Transition Initiative Energy Scenario Tool Energy Transition Initiative Energy Scenario Tool The ETI Energy Scenario Tool helps communities analyze different pathways to ...

  3. Structural Phase Transition and Photoluminescence Properties...

    Office of Scientific and Technical Information (OSTI)

    Phase Transition and Photoluminescence Properties of YF3:Eu3+ Nanocrystals under High Pressure Citation Details In-Document Search Title: Structural Phase Transition and ...

  4. Low Carbon Transition Unit | Open Energy Information

    Open Energy Info (EERE)

    Transition Unit Jump to: navigation, search Name Low Carbon Transition Unit AgencyCompany Organization Danish Government Partner Danish Ministry of Climate, Energy and Buildings;...

  5. Energy Transition Model | Open Energy Information

    Open Energy Info (EERE)

    Transition Model Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Energy Transition Model AgencyCompany Organization: Quintel Intelligence Sector: Energy Topics:...

  6. Technology Transitions Facilities Database | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technology Transitions Facilities Database Technology Transitions Facilities Database Type* Laboratory Name Facilities DataBase The DOE National Laboratories maintain cutting-edge ...

  7. Transition Zone Geothermal Region | Open Energy Information

    Open Energy Info (EERE)

    Unknown Planned Capacity 1 Geothermal Areas within the Transition Zone Geothermal Region Energy Generation Facilities within the Transition Zone Geothermal Region Geothermal Power...

  8. Office of Technology Transitions | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Turning Ideas into Impact: The Energy Department's Office of Technology Transitions Turning Ideas into Impact: The Energy Department's Office of Technology Transitions Amazing...

  9. Dewetting Transitions on Superhydrophobic Surfaces: When are...

    Office of Scientific and Technical Information (OSTI)

    Dewetting Transitions on Superhydrophobic Surfaces: When are Wenzel Drops Reversible? Citation Details In-Document Search Title: Dewetting Transitions on Superhydrophobic Surfaces: ...

  10. Solitosynthesis induced phase transitions (Journal Article) ...

    Office of Scientific and Technical Information (OSTI)

    Solitosynthesis induced phase transitions Citation Details In-Document Search Title: Solitosynthesis induced phase transitions Authors: Pearce, Lauren Publication Date: 2012-06-19 ...

  11. Solitosynthesis induced phase transitions (Journal Article) ...

    Office of Scientific and Technical Information (OSTI)

    Solitosynthesis induced phase transitions Prev Next Title: Solitosynthesis induced phase transitions Authors: Pearce, Lauren Publication Date: 2012-06-19 OSTI Identifier: ...

  12. Fuel Cell Transit Bus Coordination and Evaluation Plan California...

    Energy Savers [EERE]

    Transit Bus Coordination and Evaluation Plan California Fuel Cell Transit Evaluation Team Fuel Cell Transit Bus Coordination and Evaluation Plan California Fuel Cell Transit ...

  13. SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Update | Department of Energy Hydrogen-Powered Transit Buses: Evaluation Results Update SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results Update This report provides an update on the evaluation results for hydrogen and CNG-fueled buses opertating at SunLine Transit Agency in California. 42080.pdf (1.02 MB) More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency Hydrogen-Powered

  14. SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evaluation Results | Department of Energy Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results This paper provides preliminary results from an evaluation by DOE's National Renewable Energy Laboratory of hydrogen-powered transit buses at SunLine Transit Agency. 41001.pdf (1.38 MB) More Documents & Publications SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results

  15. DOE Transition Documents - 2008 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Transition Documents - 2008 DOE Transition Documents - 2008 Following are the DOE Transition Documents - 2008 Files in PDF format 2008_Transition_Corporate_Overview_Book_One.pdf (8.1 MB) 2008_Transition_Important_Issues_Book_Two.pdf (6.85 MB) 2008_Transition_Program_Details_Book_Three.pdf (41.97 MB) 2008_Transition_Budget_Details_Book_Four.pdf (10.21 MB) Authorize_Changes_Contractor_Work_Force_Restructuring_Policy.pdf (137.48 KB) Compilation Congressional Correspondence, January 1, 2008 throught

  16. LTS Transition and Timeline - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Transition and Timeline About Us Hanford Cultural Resources LTS Home Page LTS Project Management LTS Transition and Timeline LTS Execution LTS Background LTS Information Management LTS Fact Sheets / Briefings LTS In The News LTS Related Links LTS Contact Us LTS Transition and Timeline Email Email Page | Print Print Page | Text Increase Font Size Decrease Font Size Transition Map Please click on area to see more information Transition Map Segment 1 : Area Size 18,161 acres, 28 sq mi Segment 2

  17. Energy Transition Initiative | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Transition Initiative Energy Transition Initiative Energy Transition Initiative Through the Energy Transition Initiative (ETI), the U.S. Department of Energy and its partners work with government entities and other stakeholders to establish a long-term energy vision and successfully implement energy efficiency and renewable energy solutions. ETI provides a proven framework and technical resources and tools to help islands, states, and cities transition to a clean energy economy and

  18. FTA- SunLine Transit Agency- Final Report

    Broader source: Energy.gov [DOE]

    Final Report on the Federal Transit Administration, SunLine Transit Agency Cooperative Agreement (Part One)

  19. Transition metal sulfide loaded catalyst

    DOE Patents [OSTI]

    Maroni, Victor A.; Iton, Lennox E.; Pasterczyk, James W.; Winterer, Markus; Krause, Theodore R.

    1994-01-01

    A zeolite based catalyst for activation and conversion of methane. A zeolite support includes a transition metal (Mo, Cr or W) sulfide disposed within the micropores of the zeolite. The catalyst allows activation and conversion of methane to C.sub.2 + hydrocarbons in a reducing atmosphere, thereby avoiding formation of oxides of carbon.

  20. Stress relief of transition zones

    SciTech Connect (OSTI)

    Woodward, J.; van Rooyen, D.

    1984-01-01

    This paper considers the problem of intergranular stress corrosion cracking, initiated on the primary side, in the expansion transition region of roller expanded Alloy 600 tubing. In general it is believed that residual stresses, arising from the expansion process, are the cause of the problem. The work reported here concentrated on the identification of an optimal, in-situ stress relief treatment.

  1. Transition metal sulfide loaded catalyst

    DOE Patents [OSTI]

    Maroni, V.A.; Iton, L.E.; Pasterczyk, J.W.; Winterer, M.; Krause, T.R.

    1994-04-26

    A zeolite-based catalyst is described for activation and conversion of methane. A zeolite support includes a transition metal (Mo, Cr or W) sulfide disposed within the micropores of the zeolite. The catalyst allows activation and conversion of methane to C[sub 2]+ hydrocarbons in a reducing atmosphere, thereby avoiding formation of oxides of carbon.

  2. SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation...

    Energy Savers [EERE]

    Fifth Evaluation Report SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report This report describes operations at SunLine Transit Agency for a prototype fuel cell ...

  3. Novel Biological Conversion of Hydrogen and Carbon Dioxide Directly into Biodiesel: Cooperative Research and Development Final Report, CRADA Number: CRD-10-408

    SciTech Connect (OSTI)

    Maness, P. C.

    2014-06-01

    OPX Biotechnologies, Inc. (OPX), the National Renewable Energy Laboratory (NREL), and Johnson Matthey will develop and optimize a novel, engineered microorganism that directly produces biodiesel from renewable hydrogen (H2) and carbon dioxide (CO2). The proposed process will fix CO2 utilizing H2 to generate an infrastructure-compatible, energy-dense fuel at costs of less than $2.50 per gallon, with water being produced as the primary byproduct. NREL will perform metabolic engineering on the bacterium Cupriavidus necator (formerly Ralstonia eutropha) and a techno-economic analysis to guide future scale-up work. H2 and CO2 uptakes rates will be genetically increased, production of free fatty acids will be enhanced and their degradation pathway blocked in order to meet the ultimate program goals.

  4. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report and

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Appendices | Department of Energy This is the fourth evaluation report for this site, and it describes results and experiences from April 2008 through October 2008. 44646-1.pdf (641.2 KB) More Documents & Publications SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report and Appendices SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results

  5. Simulating flame lift-off characteristics of diesel and biodiesel fuels using detailed chemical-kinetic mechanisms and LES turbulence model.

    SciTech Connect (OSTI)

    Som, S; Longman, D. E.; Luo, Z; Plomer, M; Lu, T; Senecal, P.K.; Pomraning, E

    2012-01-01

    Combustion in direct-injection diesel engines occurs in a lifted, turbulent diffusion flame mode. Numerous studies indicate that the combustion and emissions in such engines are strongly influenced by the lifted flame characteristics, which are in turn determined by fuel and air mixing in the upstream region of the lifted flame, and consequently by the liquid breakup and spray development processes. From a numerical standpoint, these spray combustion processes depend heavily on the choice of underlying spray, combustion, and turbulence models. The present numerical study investigates the influence of different chemical kinetic mechanisms for diesel and biodiesel fuels, as well as Reynolds-averaged Navier-Stokes (RANS) and large eddy simulation (LES) turbulence models on predicting flame lift-off lengths (LOLs) and ignition delays. Specifically, two chemical kinetic mechanisms for n-heptane (NHPT) and three for biodiesel surrogates are investigated. In addition, the RNG k-{epsilon} (RANS) model is compared to the Smagorinsky based LES turbulence model. Using adaptive grid resolution, minimum grid sizes of 250 {micro}m and 125 {micro}m were obtained for the RANS and LES cases respectively. Validations of these models were performed against experimental data from Sandia National Laboratories in a constant volume combustion chamber. Ignition delay and flame lift-off validations were performed at different ambient temperature conditions. The LES model predicts lower ignition delays and qualitatively better flame structures compared to the RNG k-{epsilon} model. The use of realistic chemistry and a ternary surrogate mixture, which consists of methyl decanoate, methyl 9-decenoate, and NHPT, results in better predicted LOLs and ignition delays. For diesel fuel though, only marginal improvements are observed by using larger size mechanisms. However, these improved predictions come at a significant increase in computational cost.

  6. Performance and Emissions Characteristics of Bio-Diesel (B100)-Ignited Methane and Propane Combustion in a Four Cylinder Turbocharged Compression Ignition Engine

    SciTech Connect (OSTI)

    Shoemaker, N. T.; Gibson, C. M.; Polk, A. C.; Krishnan, S. R.; Srinivasan, K. K.

    2011-10-05

    Different combustion strategies and fuel sources are needed to deal with increasing fuel efficiency demands and emission restrictions. One possible strategy is dual fueling using readily available resources. Propane and natural gas are readily available with the current infrastructure and biodiesel is growing in popularity as a renewable fuel. This paper presents experimental results from dual fuel combustion of methane (as a surrogate for natural gas) and propane as primary fuels with biodiesel pilots in a 1.9 liter, turbocharged, 4 cylinder diesel engine at 1800 rev/min. Experiments were performed with different percentage energy substitutions (PES) of propane and methane and at different brake mean effective pressures (BMEP/bmep). Brake thermal efficiency (BTE) and emissions (NOx, HC, CO, CO2, O2 and smoke) were also measured. Maximum PES levels for B100-methane dual fuelling were limited to 70% at 2.5 bar bmep and 48% at 10 bar bmep, and corresponding values for B100-propane dual fuelling were 64% and 43%, respectively. Maximum PES was limited by misfire at 2.5 bar bmep and the onset of engine knock at 10 bar bmep. Dual fuel BTEs approached straight B100 values at 10 bar bmep while they were significantly lower than B100 values at 2.5 bar bmep. In general dual fuelling was beneficial in reducing NOx and smoke emissions by 33% and 50%, respectively from baseline B100 levels; however, both CO and THC emissions were significantly higher than baseline B100 levels at all PES and loads.

  7. Performance and Emissions Characteristics of Bio-Diesel (B100)-Ignited Methane and Propane Combustion in a Four Cylinder Turbocharged Compression Ignition Engine

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Shoemaker, N. T.; Gibson, C. M.; Polk, A. C.; Krishnan, S. R.; Srinivasan, K. K.

    2011-10-05

    Different combustion strategies and fuel sources are needed to deal with increasing fuel efficiency demands and emission restrictions. One possible strategy is dual fueling using readily available resources. Propane and natural gas are readily available with the current infrastructure and biodiesel is growing in popularity as a renewable fuel. This paper presents experimental results from dual fuel combustion of methane (as a surrogate for natural gas) and propane as primary fuels with biodiesel pilots in a 1.9 liter, turbocharged, 4 cylinder diesel engine at 1800 rev/min. Experiments were performed with different percentage energy substitutions (PES) of propane and methane andmore » at different brake mean effective pressures (BMEP/bmep). Brake thermal efficiency (BTE) and emissions (NOx, HC, CO, CO2, O2 and smoke) were also measured. Maximum PES levels for B100-methane dual fuelling were limited to 70% at 2.5 bar bmep and 48% at 10 bar bmep, and corresponding values for B100-propane dual fuelling were 64% and 43%, respectively. Maximum PES was limited by misfire at 2.5 bar bmep and the onset of engine knock at 10 bar bmep. Dual fuel BTEs approached straight B100 values at 10 bar bmep while they were significantly lower than B100 values at 2.5 bar bmep. In general dual fuelling was beneficial in reducing NOx and smoke emissions by 33% and 50%, respectively from baseline B100 levels; however, both CO and THC emissions were significantly higher than baseline B100 levels at all PES and loads.« less

  8. New York City Transit Hybrid and CNG Transit Buses: Interim Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eberts, E.; Eudy, L.

    2006-01-01

    This report focuses on the evaluation of compressed natural gas (CNG) and diesel hybrid electric bus propulsion systems in New York City Transit's transit buses.

  9. SunLine Transit Agency, Hydrogen Powered Transit Buses: Preliminary Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2007-02-01

    This paper provides preliminary results from an evaluation by DOE's National Renewable Energy Laboratory of hydrogen-powered transit buses at SunLine Transit Agency.

  10. SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    This paper provides preliminary results from an evaluation by DOE's National Renewable Energy Laboratory of hydrogen-powered transit buses at SunLine Transit Agency. 41001.pdf ...

  11. Electronic transitions of palladium dimer

    SciTech Connect (OSTI)

    Qian, Yue; Ng, Y. W.; Chen, Zhihua; Cheung, A. S.-C., E-mail: hrsccsc@hku.hk [Department of Chemistry, The University of Hong Kong, Pokfulam Road (Hong Kong)

    2013-11-21

    The laser induced fluorescence spectrum of palladium dimer (Pd{sub 2}) in the visible region between 480 and 700 nm has been observed and analyzed. The gas-phase Pd{sub 2} molecule was produced by laser ablation of palladium metal rod. Eleven vibrational bands were observed and assigned to the [17.1] {sup 3}II{sub g} - X{sup 3}?{sub u}{sup +} transition system. The bond length (r{sub o}) and vibrational frequency (?G{sub 1/2}) of the ground X{sup 3}?{sub u}{sup +} state were determined to be 2.47(4) and 211.4(5) cm{sup ?1}, respectively. A molecular orbital energy level diagram was used to understand the observed ground and excited electronic states. This is the first gas-phase experimental investigation of the electronic transitions of Pd{sub 2}.

  12. Articulated transition duct in turbomachine

    SciTech Connect (OSTI)

    Flanagan, James Scott; McMahan, Kevin Weston; LeBegue, Jeffrey Scott; Pentecost, Ronnie Ray

    2014-04-29

    Turbine systems are provided. A turbine system includes a transition duct comprising an inlet, an outlet, and a duct passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of the transition duct is offset from the inlet along the longitudinal axis and the tangential axis. The duct passage includes an upstream portion and a downstream portion. The upstream portion extends from the inlet between an inlet end and an aft end. The downstream portion extends from the outlet between an outlet end and a head end. The turbine system further includes a joint coupling the aft end of the upstream portion and the head end of the downstream portion together. The joint is configured to allow movement of the upstream portion and the downstream portion relative to each other about or along at least one axis.

  13. Fast flux test facility, transition project plan

    SciTech Connect (OSTI)

    Guttenberg, S.

    1994-11-15

    The FFTF Transition Project Plan, Revision 1, provides changes and project baseline for the deactivation activities necessary to transition the FFTF to a radiologically and industrially safe shutdown condition.

  14. SEP Program Transition Tables | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Transition Tables SEP Program Transition Tables The Program Transition Tables provide information concerning the level of effort required to move from a traditional, industrial incentive program to Strategic Energy Management, ISO 50001, or SEP. Both the customers' and utility program administrators' perspectives are considered. Utilities and PAs can use these detailed tables to understand and develop estimates of scope, resources, and realistic implementation timelines. View Program Transition

  15. Contact Technology Transitions | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Contact Technology Transitions Contact Technology Transitions Please use this form to send us your comments, report problems, and/or ask questions about information on the Office of Technology Transition website. All entries on the form will go to the Office of Technology Transitions at the Department of Energy. If you wish to contact a specific laboratory, please do so directly on this page. Your Email Message Here * CAPTCHA This question is for testing whether you are a human visitor and to

  16. Recommendation 198: Establish a site transition process

    Broader source: Energy.gov [DOE]

    The ORSSAB recommends DOE Establish a Site Transition Process Upon Completion of Remediation at Ongoing Mission Sites.

  17. Hydrogen Policy and Analyzing the Transition

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Policy and Analyzing the Transition Paul N. Leiby, David L. Greene, Zhenhong Lin, David Bowman, Sujit Das Oak Ridge National Laboratory November 16, 2009 Presented at the Workshop, "Delivering Renewable Hydrogen," NREL/CaFCP, Palm Springs, CA 2 Overview: Hydrogen Policy and Analyzing the Transition * Some lessons learned from analyzing fuel transitions - Find barriers to transitions significant, but progress being made - Review work by DOE-sponsored team, highlighting key factors *

  18. Monthly Biodiesel Production Report

    Gasoline and Diesel Fuel Update (EIA)

    Minnesota 4 125 Mississippi 3 94 Missouri 8 169 Montana - - Nebraska 1 3 Nevada - - New Hampshire 1 4 New Jersey 1 25 New Mexico 1 1 New York - - North Carolina 3 8 North Dakota 1 ...

  19. Clean Cities: Honolulu Clean Cities coalition

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    County; City of Honolulu Designated: August 29, 1995 Alternative Fueling Stations: Biodiesel (B20 and above): 3 Natural Gas: 1 Ethanol (E85): 3 Electric: 250 Hydrogen: 2 Propane:...

  20. Clean Cities: Palmetto State Clean Fuels coalition

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    of South Carolina Designated: January 28, 2004 Alternative Fueling Stations: Biodiesel (B20 and above): 27 Natural Gas: 12 Ethanol (E85): 69 Electric: 298 Hydrogen: 2 Propane: 57...

  1. Clean Cities: Southeast Florida Clean Cities coalition

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Designated: May 5, 1994 Alternative Fueling Stations: Biodiesel (B20 and above): 2 Natural Gas: 12 Ethanol (E85): 30 Electric: 414 Propane: 27 Petroleum and GHG Savings* Total...

  2. Energy Department Launches Alternative Fueling Station Locator...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    on more than 15,000 stations across the country. Users can search for stations that offer electricity, biodiesel (B20), natural gas (compressed and liquefied), ethanol (E85),...

  3. Spotlight on Maine: Transition to a Sustainable Level of Incentives...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Spotlight on Maine: Transition to a Sustainable Level of Incentives Spotlight on Maine: Transition to a Sustainable Level of Incentives Spotlight on Maine: Transition to a ...

  4. Subsidy for Energy Employee Transit (SEET) | Department of Energy

    Office of Environmental Management (EM)

    Subsidy for Energy Employee Transit (SEET) Subsidy for Energy Employee Transit (SEET) The Subsidy for Energy Employees' Transit (SEET) program is designed to promote the use of ...

  5. Cape Cod Regional Transit Authority | Open Energy Information

    Open Energy Info (EERE)

    Cod Regional Transit Authority Jump to: navigation, search Name Cape Cod Regional Transit Authority Facility Cape Cod Regional Transit Authority Sector Wind energy Facility Type...

  6. Metal to semiconductor transition in metallic transition metal dichalcogenides

    SciTech Connect (OSTI)

    Li, Yan; Kang, Jun; Li, Jingbo; Tongay, Sefaattin; Wu, Junqiao; Yue, Qu

    2013-11-07

    We report on tuning the electronic and magnetic properties of metallic transition metal dichalcogenides (mTMDCs) by 2D to 1D size confinement. The stability of the mTMDC monolayers and nanoribbons is demonstrated by the larger binding energy compared to the experimentally available semiconducting TMDCs. The 2D MX{sub 2} (M?=?Nb, Ta; X?=?S, Se) monolayers are non-ferromagnetic metals and mechanically softer compared to their semiconducting TMDCs counterparts. Interestingly, mTMDCs undergo metal-to-semiconductor transition when the ribbon width approaches to ?13? and ?7? for zigzag and armchair edge terminations, respectively; then these ribbons convert back to metal when the ribbon widths further decrease. Zigzag terminated nanoribbons are ferromagnetic semiconductors, and their magnetic properties can also be tuned by hydrogen edge passivation, whereas the armchair nanoribbons are non-ferromagnetic semiconductors. Our results display that the mTMDCs offer a broad range of physical properties spanning from metallic to semiconducting and non-ferromagnetic to ferromagnetic that is ideal for applications where stable narrow bandgap semiconductors with different magnetic properties are desired.

  7. Making the transition to automation

    SciTech Connect (OSTI)

    Christenson, D.J. )

    1992-10-01

    By 1995, the Bureau of Reclamation's hydropower plant near Hungry Horse, Montana, will be remotely operated from Grand Coulee dam (about 300 miles away) in Washington State. Automation at Hungry Horse will eliminate the need for four full-time power plant operators. Between now and then, a transition plan that offers employees choices for retraining, transferring, or taking early retirement will smooth the transition in reducing from five operators to one. The transition plan also includes the use of temporary employees to offset risks of reducing staff too soon. When completed in 1953, the Hungry Horse structure was the world's fourth largest and fourth highest concrete dam. The arch-gravity structure has a crest length of 2,115 feet; it is 3,565 feet above sea level. The four turbine-generator units in the powerhouse total 284 MW, and supply approximately 1 billion kilowatt-hours of electricity annually to the federal power grid managed by the Bonneville Power Administration. In 1988, Reclamation began to automate operations at many of its hydro plants, and to establish centralized control points. The control center concept will increase efficiency. It also will coordinate water movements and power supply throughout the West. In the Pacific Northwest, the Grand Coulee and Black Canyon plants are automated control centers. Several Reclamation-owned facilities in the Columbia River Basin, including Hungry Horse, will be connected to these centers via microwave and telephone lines. When automation is complete, constant monitoring by computer will replace hourly manual readings and equipment checks. Computers also are expected to increase water use efficiency by 1 to 2 percent by ensuring operation for maximum turbine efficiency. Unit efficiency curves for various heads will be programmed into the system.

  8. Shim for sealing transition pieces

    DOE Patents [OSTI]

    Lacy, Benjamin Paul; Demiroglu, Mehmet; Sarawate, Neelesh Nandkumar

    2012-07-24

    According to one aspect of the invention, a shim for sealing two adjacent turbine transition pieces is disclosed. The shim includes a circumferential member that includes a first lateral flange and a second lateral flange. Further, the first and second lateral flanges each comprise a tab configured to mate to a first surface plane and the first and second lateral flanges are configured to mate to a second surface plane, wherein the first and second surface planes are substantially parallel. In addition, the shim includes a first flange extending substantially perpendicular from the circumferential member.

  9. Transition section for acoustic waveguides

    DOE Patents [OSTI]

    Karplus, H.H.B.

    1975-10-28

    A means of facilitating the transmission of acoustic waves with minimal reflection between two regions having different specific acoustic impedances is described comprising a region exhibiting a constant product of cross-sectional area and specific acoustic impedance at each cross-sectional plane along the axis of the transition region. A variety of structures that exhibit this feature is disclosed, the preferred embodiment comprising a nested structure of doubly reentrant cones. This structure is useful for monitoring the operation of nuclear reactors in which random acoustic signals are generated in the course of operation.

  10. Low floor mass transit vehicle

    DOE Patents [OSTI]

    Emmons, J. Bruce; Blessing, Leonard J.

    2004-02-03

    A mass transit vehicle includes a frame structure that provides an efficient and economical approach to providing a low floor bus. The inventive frame includes a stiff roof panel and a stiff floor panel. A plurality of generally vertical pillars extend between the roof and floor panels. A unique bracket arrangement is disclosed for connecting the pillars to the panels. Side panels are secured to the pillars and carry the shear stresses on the frame. A unique seating assembly that can be advantageously incorporated into the vehicle taking advantage of the load distributing features of the inventive frame is also disclosed.

  11. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Report and Appendices | Department of Energy and Appendices SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report and Appendices This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural gas buses. 43741-1.pdf (763.42 KB) More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results

  12. Buckling transition in long ?-helices

    SciTech Connect (OSTI)

    Palen?r, Peter; Bleha, Tom

    2014-11-07

    The treatment of bending and buckling of stiff biopolymer filaments by the popular worm-like chain model does not provide adequate understanding of these processes at the microscopic level. Thus, we have used the atomistic molecular-dynamic simulations and the Amber03 force field to examine the compression buckling of ?-helix (AH) filaments at room temperature. It was found that the buckling instability occurs in AHs at the critical force f{sub c} in the range of tens of pN depending on the AH length. The decrease of the force f{sub c} with the contour length follows the prediction of the classic thin rod theory. At the force f{sub c} the helical filament undergoes the swift and irreversible transition from the smoothly bent structure to the buckled one. A sharp kink in the AH contour arises at the transition, accompanied by the disruption of the hydrogen bonds in its vicinity. The kink defect brings in an effective softening of the AH molecule at buckling. Nonbonded interactions between helical branches drive the rearrangement of a kinked AH into the ultimate buckled structure of a compact helical hairpin described earlier in the literature.

  13. Terms and Conditions for Site Transition | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Terms and Conditions for Site Transition Terms and Conditions for Site Transition Terms and Conditions for Site Transition Terms and Conditions for Site Transition (207.92 KB) More Documents & Publications Development of Site Transition Plan, Use of the Site Transition Framework, and Terms and Conditions for Site Transition Terms and Conditions for EM Clean Up to the Office of Science Site Transition Framework for Long-Term Surveillance and Maintenance

  14. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report and Appendices

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2008-07-01

    This report describes operations at Alameda-Contra Costa Transit district for three protoype fuel cell buses and six diesel buses operating from the same location.

  15. Synthesis of transition metal carbonitrides

    DOE Patents [OSTI]

    Munir, Zuhair A. R.; Eslamloo-Grami, Maryam

    1994-01-01

    Transition metal carbonitrides (in particular, titanium carbonitride, TiC.sub.0.5 N.sub.0.5) are synthesized by a self-propagating reaction between the metal (e.g., titanium) and carbon in a nitrogen atmosphere. Complete conversion to the carbonitride phase is achieved with the addition of TiN as diluent and with a nitrogen pressure .gtoreq.0.6 MPa. Thermodynamic phase-stability calculations and experimental characterizations of quenched samples provided revealed that the mechanism of formation of the carbonitride is a two-step process. The first step involves the formation of the nonstoichiometric carbide, TiC.sub.0.5, and is followed by the formation of the product by the incorporation of nitrogen in the defect-structure carbide.

  16. Vehicle Technologies Office: Transitioning the Transportation Sector -

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Exploring the Intersection of H2 Fuel Cell and Natural Gas Vehicles | Department of Energy Transitioning the Transportation Sector - Exploring the Intersection of H2 Fuel Cell and Natural Gas Vehicles Vehicle Technologies Office: Transitioning the Transportation Sector - Exploring the Intersection of H2 Fuel Cell and Natural Gas Vehicles This report, titled "Transitioning the Transportation Sector: Exploring the Intersection of Hydrogen Fuel Cell and Natural Gas Vehicles" is based

  17. Analysis of Nuclear Quantum Phase Transitions

    SciTech Connect (OSTI)

    Li, Z. P.; Meng, J.; Niksic, T.; Vretenar, D.; Lalazissis, G. A.; Ring, P.

    2009-08-26

    A microscopic analysis, based on nuclear energy density functionals, is presented for shape phase transitions in Nd isotopes. Low-lying excitation spectra and transition probabilities are calculated starting from a five-dimensional Hamiltonian, with parameters determined by constrained relativistic mean-field calculations for triaxial shapes. The results reproduce available data, and show that there is an abrupt change of structure at N = 90, that corresponds to a first-order quantum phase transition between spherical and axially deformed shapes.

  18. the-schedule-based-transit-model

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Schedule-Based transit model of the Chicago Metropolitan Area Vadim Sokolov Transportation Research and Analysis Computing Center Argonne National Laboratory List of Authors ================ Vadim Sokolov Transportation Research and Analysis Computing Center Argonne National Laboratory 277 International Drive West Chicago, IL 60185 Abstract ========= Usually public transit systems are modeled using so called frequency based approach. In this case transit route times are defined in terms of

  19. Site Transition Guidance | Department of Energy

    Office of Environmental Management (EM)

    Guidance Site Transition Guidance On June 16, 2004, Michael W. Owen, Director, Office of Legacy Management (LM) and Jessie H. Roberson, Assistant Secretary, Office of Environmental ...

  20. Vehicle Technologies Office: Transitioning the Transportation...

    Broader source: Energy.gov (indexed) [DOE]

    This report, titled "Transitioning the Transportation Sector: Exploring the Intersection of Hydrogen Fuel Cell and Natural Gas Vehicles" is based on a workshop that was held on ...

  1. Aspects of the non-zonal transition

    SciTech Connect (OSTI)

    Pueschel, M. J.; Terry, P. W. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)] [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); Hatch, D. R. [Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712 (United States)] [Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712 (United States)

    2014-05-15

    The non-zonal transition, a process which can bring about very large heat fluxes in gyrokinetic simulations, occurs once a certain threshold plasma ? is reached. This threshold is parameterized via a simulation database, yielding an expression estimating at what ? a given system may approach the transition. Furthermore, the diffusive outward transport of a heat blob in a temperature profile marginally stable with respect to the non-zonal transition is discussed: the resulting transport timescale combines the underlying turbulent transport timescale and the linear instability growth time, thus demonstrating that the non-zonal transition provides a mechanism for very fast heat dissipation.

  2. Transitioning the Transportation Sector: Exploring the Intersection...

    Office of Environmental Management (EM)

    the Intersection of Hydrogen Fuel Cell and Natural Gas Vehicles Transitioning the Transportation Sector: Exploring the Intersection of Hydrogen Fuel Cell and Natural Gas ...

  3. Electronic Spin Transition in Nanosize Stoichiometric Lithium...

    Office of Scientific and Technical Information (OSTI)

    Title: Electronic Spin Transition in Nanosize Stoichiometric Lithium Cobalt Oxide Authors: ... Language: English Subject: energy storage (including batteries and capacitors), defects, ...

  4. Fuel Cells Technology Transit | Open Energy Information

    Open Energy Info (EERE)

    Fuel Cells Technology Transit Place: Clearwater, Florida Zip: 33767 Sector: Hydro, Hydrogen Product: Involved in the development and research of energy models on Hydrogen Energy...

  5. Transitioning Los Alamos technology into the marketplace

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    All Issues submit Transitioning Los Alamos technology into the marketplace A personal message from Duncan McBranch, Chief Technology Officer, Los Alamos National...

  6. Deputy Director, Office of Technology Transitions

    Broader source: Energy.gov [DOE]

    The Office of Technology Transitions (OTT) is responsible for developing and overseeing the delivery of the DOE strategic vision and goals for technology commercialization and engagement with the...

  7. NO TRANSIT TIMING VARIATIONS IN WASP-4

    SciTech Connect (OSTI)

    Petrucci, R.; Schwartz, M.; Buccino, A. P.; Mauas, P. J. D.; Jofr, E.; Cneo, V.; Gmez, M.; Martnez, C.

    2013-12-20

    We present six new transits of the system WASP-4. Together with 28 light curves published in the literature, we perform a homogeneous study of its parameters and search for variations in the transits' central times. The final values agree with those previously reported, except for a slightly lower inclination. We find no significant long-term variations in i or R{sub P} /R {sub *}. The O-C mid-transit times do not show signs of transit timing variations greater than 54s.

  8. SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results Update This report provides an update on the evaluation results for hydrogen and CNG-fueled buses ...

  9. Emission Testing of Washington Metropolitan Area Transit Authority (WMATA) Natural Gas and Diesel Transit Buses

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Emission Testing of Washington Metropolitan Area Transit Authority (WMATA) Natural Gas and Diesel Transit Buses M. Melendez, J. Taylor, and J. Zuboy National Renewable Energy Laboratory W.S. Wayne West Virginia University D. Smith U.S. Department of Energy Technical Report NREL/TP-540-36355 December 2005 Emission Testing of Washington Metropolitan Area Transit Authority (WMATA) Natural Gas and Diesel Transit Buses M. Melendez, J. Taylor, and J. Zuboy National Renewable Energy Laboratory W.S.

  10. New York City Transit Hybrid and CNG Transit Buses: Interim Evaluation Results

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    New York City Transit Hybrid and CNG Transit Buses: Interim Evaluation Results K. Chandler and E. Eberts Battelle L. Eudy National Renewable Energy Laboratory Technical Report NREL/TP-540-38843 January 2006 New York City Transit Hybrid and CNG Transit Buses: Interim Evaluation Results K. Chandler and E. Eberts Battelle L. Eudy National Renewable Energy Laboratory Prepared under Task No. FC06.3000 Technical Report NREL/TP-540-38843 January 2006 National Renewable Energy Laboratory 1617 Cole

  11. Emission Testing of Washington Metropolitan Area Transit Authority (WMATA) Natural Gas and Diesel Transit Buses

    SciTech Connect (OSTI)

    Melendez, M.; Taylor, J.; Wayne, W. S.; Smith, D.; Zuboy, J.

    2005-12-01

    An evaluation of emissions of natural gas and diesel buses operated by the Washington Metro Area Transit Authority.

  12. Method for dry etching of transition metals

    DOE Patents [OSTI]

    Ashby, C.I.H.; Baca, A.G.; Esherick, P.; Parmeter, J.E.; Rieger, D.J.; Shul, R.J.

    1998-09-29

    A method for dry etching of transition metals is disclosed. The method for dry etching of a transition metal (or a transition metal alloy such as a silicide) on a substrate comprises providing at least one nitrogen- or phosphorus-containing {pi}-acceptor ligand in proximity to the transition metal, and etching the transition metal to form a volatile transition metal/{pi}-acceptor ligand complex. The dry etching may be performed in a plasma etching system such as a reactive ion etching (RIE) system, a downstream plasma etching system (i.e. a plasma afterglow), a chemically-assisted ion beam etching (CAIBE) system or the like. The dry etching may also be performed by generating the {pi}-acceptor ligands directly from a ligand source gas (e.g. nitrosyl ligands generated from nitric oxide), or from contact with energized particles such as photons, electrons, ions, atoms, or molecules. In some preferred embodiments of the present invention, an intermediary reactant species such as carbonyl or a halide ligand is used for an initial chemical reaction with the transition metal, with the intermediary reactant species being replaced at least in part by the {pi}-acceptor ligand for forming the volatile transition metal/{pi}-acceptor ligand complex.

  13. Method for dry etching of transition metals

    DOE Patents [OSTI]

    Ashby, Carol I. H.; Baca, Albert G.; Esherick, Peter; Parmeter, John E.; Rieger, Dennis J.; Shul, Randy J.

    1998-01-01

    A method for dry etching of transition metals. The method for dry etching of a transition metal (or a transition metal alloy such as a silicide) on a substrate comprises providing at least one nitrogen- or phosphorous-containing .pi.-acceptor ligand in proximity to the transition metal, and etching the transition metal to form a volatile transition metal/.pi.-acceptor ligand complex. The dry etching may be performed in a plasma etching system such as a reactive ion etching (RIE) system, a downstream plasma etching system (i.e. a plasma afterglow), a chemically-assisted ion beam etching (CAIBE) system or the like. The dry etching may also be performed by generating the .pi.-acceptor ligands directly from a ligand source gas (e.g. nitrosyl ligands generated from nitric oxide), or from contact with energized particles such as photons, electrons, ions, atoms, or molecules. In some preferred embodiments of the present invention, an intermediary reactant species such as carbonyl or a halide ligand is used for an initial chemical reaction with the transition metal, with the intermediary reactant species being replaced at least in part by the .pi.-acceptor ligand for forming the volatile transition metal/.pi.-acceptor ligand complex.

  14. Energy Transition Initiative: Islands Playbook (Book)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01

    The Island Energy Playbook (the Playbook) provides an action-oriented guide to successfully initiating, planning, and completing a transition to an energy system that primarily relies on local resources to eliminate a dependence on one or two imported fuels. It is intended to serve as a readily available framework that any community can adapt to organize its own energy transition effort.

  15. Superconducting transition temperature in anodized aluminum

    SciTech Connect (OSTI)

    Leemann, C.; Elliott, J.H.; Deutscher, G.; Orbach, R.; Wolf, S.A.

    1983-08-01

    We have measured the superconducting transition temperature of anodized aluminum films of grain sizes ranging from less than 100 to 3000 A. The transition temperature is 1.8 K for films of grain size 100 A and decreases monotonically with increasing grain size to 1.2 K for 3000-A grains. The effect depends only on the volume of the grains.

  16. QCD Phase Transitions, Volume 15

    SciTech Connect (OSTI)

    Schaefer, T.; Shuryak, E.

    1999-03-20

    The title of the workshop, ''The QCD Phase Transitions'', in fact happened to be too narrow for its real contents. It would be more accurate to say that it was devoted to different phases of QCD and QCD-related gauge theories, with strong emphasis on discussion of the underlying non-perturbative mechanisms which manifest themselves as all those phases. Before we go to specifics, let us emphasize one important aspect of the present status of non-perturbative Quantum Field Theory in general. It remains true that its studies do not get attention proportional to the intellectual challenge they deserve, and that the theorists working on it remain very fragmented. The efforts to create Theory of Everything including Quantum Gravity have attracted the lion share of attention and young talent. Nevertheless, in the last few years there was also a tremendous progress and even some shift of attention toward emphasis on the unity of non-perturbative phenomena. For example, we have seen some efforts to connect the lessons from recent progress in Supersymmetric theories with that in QCD, as derived from phenomenology and lattice. Another example is Maldacena conjecture and related development, which connect three things together, string theory, super-gravity and the (N=4) supersymmetric gauge theory. Although the progress mentioned is remarkable by itself, if we would listen to each other more we may have chance to strengthen the field and reach better understanding of the spectacular non-perturbative physics.

  17. Stainless Steel to Titanium Bimetallic Transitions

    SciTech Connect (OSTI)

    Kaluzny, J. A.; Grimm, C.; Passarelli, D.

    2015-01-01

    In order to use stainless steel piping in an LCLS-II (Linac Coherent Light Source Upgrade) cryomodule, stainless steel to titanium bimetallic transitions are needed to connect the stainless steel piping to the titanium cavity helium vessel. Explosion bonded stainless steel to titanium transition pieces and bimetallic transition material samples have been tested. A sample transition tube was subjected to tests and x-ray examinations between tests. Samples of the bonded joint material were impact and tensile tested at room temperature as well as liquid helium temperature. The joint has been used successfully in horizontal tests of LCLS-II cavity helium vessels and is planned to be used in LCLS-II cryomodules. Results of material sample and transition tube tests will be presented.

  18. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Report -- Appendices | Department of Energy -- Appendices SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report -- Appendices This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural gas buses. For main report, see NREL/TP-560-43741. 43741-2.pdf (1.69 MB) More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses:

  19. Information and Records Management Transition Guidance | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Information and Records Management Transition Guidance Information and Records Management Transition Guidance Information and Records Management Transition Guidance (March 2004) Information and Records Management Transition Guidance (869.4 KB) More Documents & Publications LM Records and Information Management Transition Guidance (May 2016) ADMINISTRATIVE RECORDS SCHEDULE 20: ELECTRONIC RECORDS ADMINISTRATIVE RECORDS SCHEDULE 20: ELECTRONIC RECORDS

  20. Materials Data on LiMg9B20 (SG:2) by Materials Project

    SciTech Connect (OSTI)

    Kristin Persson

    2014-11-02

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  1. Knoxville Area Transit: Propane Hybrid Electric Trolleys

    SciTech Connect (OSTI)

    Not Available

    2005-04-01

    A 2-page fact sheet summarizing the evaluation done by the U.S. Department of Energy's Advanced Vehicle Testing Activity on the Knoxville Area Transit's use of propane hybrid electric trolleys.

  2. LM Records and Information Management Transition Guidance (May 2016) |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Records and Information Management Transition Guidance (May 2016) LM Records and Information Management Transition Guidance (May 2016) This guidance document establishes a framework for developing a Records and Information Management Transition Plan as part of the overall transition effort for a legacy site. LM Records and Information Management Transition Guidance (May 2016) (1.47 MB) More Documents & Publications Information and Records Management Transition

  3. Pion-Photon Transition Distribution Amplitudes

    SciTech Connect (OSTI)

    Courtoy, A.; Noguera, S.

    2008-08-29

    The newly introduced Transition Distribution Amplitudes (TDAs) are discussed for the {pi}-{gamma} transitions. Relations between {pi}-{gamma} and {gamma}-{pi} TDAs for different cases are given. Numerical values for the {pi}-{gamma} TDAs in different models are compared. GPD's features are extended to TDAs and the role of PCAC highlighted. We give hints for the evaluation of cross sections for meson pair production in our approach.

  4. DOE'S geothermal division: A period of transition

    SciTech Connect (OSTI)

    Jelacic, Allan J.; Reed, Marshall

    1996-01-24

    The transition that the Department of Energy's geothemal research program is undergoing is discussed. This transitional period began last year and will continue at least through final implementation of the Department's reorganization and downsizing. Current and recently completed R&D programs are reviewed. New initiatives are outlined. The foci and direction of the Division's activities of particular interest to the geothermal research community are addressed.

  5. Late-time cosmological phase transitions

    SciTech Connect (OSTI)

    Schramm, D.N. Fermi National Accelerator Lab., Batavia, IL )

    1990-11-01

    It is shown that the potential galaxy formation and large-scale structure problems of objects existing at high redshifts (Z {approx gt} 5), structures existing on scales of 100M pc as well as velocity flows on such scales, and minimal microwave anisotropies ({Delta}T/T) {approx lt} 10{sup {minus}5} can be solved if the seeds needed to generate structure form in a vacuum phase transition after decoupling. It is argued that the basic physics of such a phase transition is no more exotic than that utilized in the more traditional GUT scale phase transitions, and that, just as in the GUT case, significant random gaussian fluctuations and/or topological defects can form. Scale lengths of {approximately}100M pc for large-scale structure as well as {approximately}1 M pc for galaxy formation occur naturally. Possible support for new physics that might be associated with such a late-time transition comes from the preliminary results of the SAGE solar neutrino experiment, implying neutrino flavor mixing with values similar to those required for a late-time transition. It is also noted that a see-saw model for the neutrino masses might also imply a tau neutrino mass that is an ideal hot dark matter candidate. However, in general either hot or cold dark matter can be consistent with a late-time transition. 47 refs., 2 figs.

  6. LM Records and Information Management Transition Guidance (January 2015)

    Broader source: Energy.gov [DOE]

    This guidance document establishes a framework for developing a Records and Information Management Transition Plan as part of the overall transition effort for a legacy site.

  7. Walker-Lane Transition Zone Geothermal Region | Open Energy Informatio...

    Open Energy Info (EERE)

    At Walker-Lane Transitional Zone Region (Coolbaugh, Et Al., 2005 - 2) Direct-Current Resistivity Survey At Walker-Lane Transitional Zone Region (Pritchett,...

  8. Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Administration; Appendix Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration; Appendix ...

  9. United Kingdom Low Carbon Transition Plan | Open Energy Information

    Open Energy Info (EERE)

    Low Carbon Transition Plan Jump to: navigation, search Tool Summary LAUNCH TOOL Name: United Kingdom Low Carbon Transition Plan AgencyCompany Organization: United Kingdom...

  10. EBRD-The Low Carbon Transition | Open Energy Information

    Open Energy Info (EERE)

    The Low Carbon Transition Jump to: navigation, search Tool Summary LAUNCH TOOL Name: EBRD-The Low Carbon Transition AgencyCompany Organization: European Bank for Reconstruction...

  11. Integrated Market Modeling of Hydrogen Transition Scenarios with...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Integrated Market Modeling of Hydrogen Transition Scenarios with HyTrans Integrated Market Modeling of Hydrogen Transition Scenarios with HyTrans Presentation by Paul Leiby of Oak ...

  12. Site Transition Framework for Long-Term Surveillance and Maintenance...

    Broader source: Energy.gov (indexed) [DOE]

    for Long-Term Surveillance and Maintenance Site Transition Framework for Long-Term Surveillance and Maintenance (943.69 KB) More Documents & Publications Site Transition Framework ...

  13. Site Transition Framework for Long-Term Surveillance and Maintenance...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Framework for Long-Term Surveillance and Maintenance Site Transition Framework for Long-Term Surveillance and Maintenance The Site Transition Framework (STF) provides a framework ...

  14. Hiring Our Heroes Transition and Benefits Career Fair- Baltimore...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Hiring Our Heroes Transition and Benefits Career Fair- Baltimore, MD part of the 97th Annual American Legion National Convention Hiring Our Heroes Transition and Benefits Career...

  15. Unbalanced edge modes and topological phase transition in gated...

    Office of Scientific and Technical Information (OSTI)

    Unbalanced edge modes and topological phase transition in gated trilayer graphene Title: Unbalanced edge modes and topological phase transition in gated trilayer graphene Authors: ...

  16. Superconductors and Complex Transition Metal Oxides for Tunable...

    Office of Scientific and Technical Information (OSTI)

    Superconductors and Complex Transition Metal Oxides for Tunable THz Plasmonic Metamaterials Citation Details In-Document Search Title: Superconductors and Complex Transition Metal ...

  17. POLICY GUIDANCE MEMORANDUM #19 Guidance on Transition to Eliminate...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    9 Guidance on Transition to Eliminate FCIP (Expired) POLICY GUIDANCE MEMORANDUM 19 Guidance on Transition to Eliminate FCIP (Expired) THIS GUIDANCE HAS EXPIRED Guidance on the...

  18. Transitioning to a Utility Funded Program Environment: What Do...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Program Sustainability Peer Exchange Call: Transitioning to a Utility Funded Program ... More Documents & Publications Program Sustainability Peer Exchange Call: Transitioning to ...

  19. Program Sustainability Peer Exchange Call: Transitioning to a...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Program Sustainability Peer Exchange Call: Transitioning to a Utility Funded Program Environment: What Do I Need to Know? Program Sustainability Peer Exchange Call: Transitioning to ...

  20. Electronic Transitions in f-electron Metals at High Pressures...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Electronic Transitions in f-electron Metals at High Pressures: Citation Details In-Document Search Title: Electronic Transitions in f-electron Metals at High ...