A simple biofuel surrogate blend for diesel fuel: heptane/iso-butanol mixtures and their droplet burning characteristics

Conference · Mon May 14 00:00:00 EDT 2018

DOI:https://doi.org/10.2172/1998548· OSTI ID:1998548

Dalili, Alireza ^[1]; Brunson, Jordan; Avedisian, Thomas

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1. Cornell University

• The burning rates of heptane/iso-butanol mixture droplets varied nonlinearly with composition. • Spherical droplet flames were produced by minimizing convective influences on burning. • Sooting propensities varied with mixture fraction and reduced as heptane was diluted with iso-butanol. • The evolution of droplet diameters was nearly linear throughout burning though the flame standoff ratio was not constant, thus indicating that burning was not quasi-steady. • The relative position of the flame to the droplet generally decreased by diluting heptane with iso-butanol. • A heptane/iso-butanol mixture is a good model surrogate system for a transportation fuel/biofuel blend.

• Research Organization: Combustion Institute
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: EE0007978
• OSTI ID: 1998548
• Report Number(s): DOE-CORNELL-0007978-3
• Country of Publication: United States
• Language: English