Ignition delay time data from shock tubes were generated for RP-1, RP-2, JP-8, and a JP-8 synthetic substitute prepared by means of a Fischer-Tropsch process. Samples of RP-1 and JP-8 were taken from regular service supply, while the RP-2 and JP-8 FT were obtained from smaller batch preparations. RP-2 is similar chemically to RP-1 except it is refined so that the sulfur content is much lower to reduce coking. JP-8 which has been synthetically derived from coal is gaining more interest scientifically but has not been compared within a shock tube to its petroleum distillate counterpart. These heavy fuels were tested in a newly heated shock-tube facility capable of maintaining steady-state temperatures of up to 120°C. Tests were made for each of the fuels at two equivalence ratios, Φ = 1 and 0.5, temperatures ranging from 1100 to 2000 K, and at an average pressure of 9 atm. One main result of this study is that there is very little difference in the ignition delay times amongst the four fuels over the conditions studied herein.
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