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Original Articles

Fuel Additive Effects on Soot Across a Suite of Laboratory Devices, Part 2: Nitroalkanes

, , , , , , , , , & show all
Pages 739-754 | Received 12 Sep 2010, Accepted 08 Nov 2010, Published online: 12 Apr 2011
 

Abstract

This is the second in a series of papers to summarize results of the impact of nonmetallic fuel additives on soot. The research was conducted by a university, industry, and government team with the primary objective of obtaining fundamental understanding of the mechanisms through which additive compounds blended into a fuel affect soot emissions. The work involved coordinated testing across a suite of laboratory devices: a shock tube, a well-stirred reactor, a premixed flat flame, an opposed-jet diffusion flame, and a high-pressure turbulent reactor. This article summarizes results on the addition of nitroalkanes to a base fuel consisting of n-heptane and toluene as a simple surrogate for jet fuels. In these experiments, the nitroalkanes serve as chemical probes of key reactions leading to soot. The effects of nitroalkane addition on soot were found to be device and condition dependent with no simple trends across the suite of devices.

ACKNOWLEDGMENTS

The authors acknowledge the financial support for this work provided by the Strategic Environmental Research and Development Program (SERDP), Project PP1179, under the direction of Dr. Charles Pellerin.

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