Policymaking to reduce carbon emissions

Agusdinata, Datu Buyung; Dittmar, Lars; DeLaurentis, Daniel

doi:10.1201/9781420065893.ch8

Cited by 1 publication

(1 citation statement)

References 17 publications

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“…1,[20][21][22] Biofuels derived from bio-feedstocks such as camelina, jatropha and algae are potential fuel source for the future aviation because of their ability to ameliorate the issues of fossil-based jet fuel. [23][24][25][26] It is reported that 50% Camelina blended Jet-A fuel reduces the particulate number and mass emission by )% compared to pure Jet-A fuel. 1 Gas turbines have flexibility of running a wide variety of fuels which enable them to use biofuel without further modification of the current aircraft engine design or fuel distribution system.…”

Section: Introductionmentioning

confidence: 99%

Impact of Biofuel Blends on Black Carbon Emissions from a Gas Turbine Engine

et al. 2020

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Presented here is an overview of non-volatile particulate matter (nvPM) emissions, i.e. "soot" as assessed by TEM analyses of samples collected after the exhaust of a J-85 turbojet fueled with Jet-A as well as with blends of Jet-A and Camelina biofuel. A unifying explanation is provided to illustrate the combustion dynamics of biofuel and Jet-A fuel. The variation of primary particle size, aggregate size and nanostructure are analyzed as a function of biofuel blend across a range of engine thrust levels. The postulate is based on where fuels start along the soot formation pathway. Increasing biofuel content lowers aromatic concentration while placing increasing dependence upon fuel pyrolysis reactions to form the requisite concentration of aromatics for particle inception and growth. The required "kinetic" time for pyrolysis reactions to produce benzene and multi-ring PAHs allows increased fuel-air mixing by turbulence, diluting the fuel-rich soot-forming regions, effectively lowering their equivalence ratio. With a lower precursor concentration, particle Publisher's Disclaimer: Disclaimer Publisher's Disclaimer: The U.S. Environmental Protection Agency collaborated in the research described herein. This work has not been subject to an administrative review and does not necessarily reflect the views of the Agency. No official endorsement should be inferred. EPA does not endorse the purchase or sale of any commercial products or services.

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Section: Introductionmentioning

confidence: 99%