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Evaluation and Testing of the Suitability of a Coal-Based Jet Fuel
Final rept. 1 Feb-31 Dec 2005
DAYTON UNIV OH RESEARCH INST
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A candidate coal-based fuel was evaluated both for use as substitute for conventional petroleum-derived JP-8 fuel and as a candidate for advanced application. Numerous properties and performance behavior were monitored through a combination of specification tests and research-type evaluations. This testing included a variety of physical and chemical property tests in the areas of high temperature thermal stability, low temperature flowability, and combustion emissions characteristics, as well as a thorough series of chemical analysis evaluations. The fuel was found to meet the vast bulk of the testing, but had some off-specification test results for example, hydrogen content and API gravity due to the unusual hydrocarbon constituents present in the fuel. In general, the fuel performed extremely well in thermal stability testing, but exhibited a higher viscosity than conventional fuels in low temperature evaluations. The significant oxidative and pyrolytic thermal stability benefits of the coal-based fuel could be used in the future to greatly improve the fuel heat sink and engine and aircraft technologies that are currently limited by thermal concerns.
APPROVED FOR PUBLIC RELEASE