Green Car Congress
JANUARY 15, 2018
The focus will be on alternative fuel emissions and the characterisation of ice crystals in condensation trails (contrails), using biofuel as an example. The joint research flight campaign has been given the title ND-MAX/ECLIF 2 (NASA/DLR-Multidisciplinary Airborne eXperiments/Emission and CLimate Impact of alternative Fuel).
Green Car Congress
AUGUST 5, 2019
The study was conducted in 2018 by West Virginia University’s Center of Alternatives Fuels, Engines, and Emissions (CAFEE). NO x emissions remain a significant challenge to air quality in the US, and are a predominant non-attainment concern for many areas, especially in California.
Green Car Congress
MAY 9, 2015
The California Air Resources Board (ARB) has posted a discussion document. Approximately 32% of the heavy-duty transit vehicles operating in California are diesel-fueled. Urban bus fleets had to select either a diesel path or an alternative-fuel path.
Green Car Congress
OCTOBER 7, 2014
The test cell’s support equipment (conditioned combustion air, cooling system, fuel mass flow measurement and exhaust system) was designed to comfortably support 7,000-hp engines. The facility’s centerpiece is a Froude Hofmann model F63RE dynamometer rated to 6,700 kilowatts (9,000 hp) and a maximum speed of 2,500 rpm.
Green Car Congress
OCTOBER 9, 2015
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. At present, global air traffic contributes towards almost 5% of global warming.
Green Car Congress
MARCH 1, 2013
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. Survey black carbon and gas-phase emissions and contrail properties from commercial aircraft at cruise in air-traffic corridors.
Green Car Congress
MARCH 16, 2017
The possibility of reducing the engine exhaust soot emissions by more than half using biofuels paves the way for reducing the climatic impact of contrails. They followed a NASA DC-8 research aircraft at close distances ranging from 30 to 150 meters to measure exhaust composition from each of the inboard engines. Moore, Kenneth L.
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