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Study finds propane school buses significantly decrease NOx emissions compared to diesel

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According to a study commissioned by the Washington, DC-based Propane Education & Research Council (PERC), NO x emissions measured from propane autogas school buses were substantially lower than those measured from diesel school buses. For the stop-and-go route, NO x emissions were 34 times higher for the diesel school bus.

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NASA and DLR to conduct joint flight tests on alternative fuel emissions with focus on ice crystals

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The focus will be on alternative fuel emissions and the characterisation of ice crystals in condensation trails (contrails), using biofuel as an example. The planned research flights are intended to determine particle emissions and how they affect cloud formation through contrails, thus investigating their impact on the climate.

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NASA begins ACCESS flight research to study effects of biojet fuels on engine performance, emissions and contrails

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NASA researchers have begun a series of flights using the agency’s DC-8 flying laboratory to study the effects of alternate biofuel on engine performance, emissions and aircraft-generated contrails at altitude. —Ruben Del Rosario, manager of NASA’s Fixed Wing Project.

Emissions 225
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NASA-led study finds 50 vol% biofuel blend reduces soot particle emissions during aircraft cruising; reduced climatic impact of contrails

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A 50:50 by volume blend of conventional Jet A aviation fuel and an aviation biofuel made from Camelina reduces soot particle number and mass emissions from the aircraft by 50 to 70% compared to conventional fuel, YYYY according to a new study published in the scientific journal Nature.

Climate 210
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DLR wrapping up ECLIF in-flight study of emissions from alternative aviation fuels; potential for improved fuel design

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In a three-week series of flight tests lasting until 9 October 2015, the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) has been investigating how to reduce the impact of air transport on the climate by using alternative fuels. The WTD61 also supports DLR with the logistics for the implementation of the flight tests.

Fuel 150
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New 2019 Toyota Avalon hybrid boosts fuel economy 10% to 44 mpg combined

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Toyota estimates that the 2019 Avalon Hybrid will boost fuel economy by up to 10% over its MY 2018 predecessor, from 40 mpg (5.88 liter four-cylinder Dynamic Force Engine is more fuel efficient, runs cleaner, and is more powerful than previous iterations, and excels at dissipating thermal inefficiencies. l/100 km) combined.

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Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

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At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 liter) and its emission control system (ECS) without a weight penalty. Earlier post.).