Giacomo Flora



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In this study, emissions from a surrogate of aviation fuel components have been characterized. The proposed surrogate includes n-dodecane and m-xylene with 75% and 25% by liquid volume, respectively. The combustion was investigated behind reflected shock waves to obtain ignition delay times and quantify yields of a range of stable combustion products including volatile gases, aldehydes, PAHs (polycyclic aromatic hydrocarbons) and soot. The experimental conditions covered a temperature range of ~980-1500 K, at pressures of 18 atm, at an equivalence ratio of 3, using argon as the diluent (93 % vol). In all experiments, dwell times were kept in the range of 7.55-7.85 ms by using a suitable argon-helium mixture as the driver gas. The collected gas samples from shock tube experiments were analyzed using GC-TCD for light gases and GC-MS was used for aldehydes, volatiles and semi-volatiles. The mass of the collected particulate matter (PM) was determined via the temperature programmed oxidation (TPO) / carbon burn-off method. The present work provides comprehensive emissions characterization data for the validation of combustion kinetic models, and valuable comparisons for selecting future alternate jet fuels based on their emissions

Publication Date


Project Designation

Graduate Research

Primary Advisor

Sukhjinder S. Sidhu


Stander Symposium poster

Characterization of Emissions from the Combustion of a Selected Surrogate for Aviation Fuels