Conclusions
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1.
The existing procedure for assessing the operational suitability of type IT9-2 and IT9-6 equipments using only the ON of a mixture of 74% toluene and 26% n -heptane is inadequate.
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2.
In order to exclude systematic error in assessing the equivalence of equipments, the following corrected parameters should be used: ON, compression pressure, and combustion chamber temperature measured by thermocouple.
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3.
The equivalence of type IT9-2 and IT9-6 equipments should be assessed with two reference fuels—one with ON up to 90–95 and the other above 90–95.
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Literature cited
E. I. Zabryanski and A. P. Zarubin, Knock-Rating and Combustibility of Motor Fuels [in Russian], Izd. “Khimiya” (1965), pp. 23–25.
V. Iost, Combustion Problems in Gases [Russian translation], IL (1952), p. 599.
V. N. Kondrat'ev, Chemical Reaction Kinetics [in Russian], Izd. AN SSSR (1958), p. 500.
I. N. Danilov, L. F. Estifeev, N. I. Kravchuk, and L. S. Vakhonin, Khim. i Tekhnol. Topliv i Masel, No. 7 (1965).
I. N. Danilov, Khim. i Tekhnol. Topliv i Masel, No. 10 (1966).
Proceedings, American Petroleum Institute, Sec. 3,40, 64–70 (1960).
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 10, pp. 53–55, October, 1968.
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Danilov, I.N. Equivalence of gasoline knock-rating equipment. Chem Technol Fuels Oils 4, 768–770 (1968). https://doi.org/10.1007/BF00723128
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DOI: https://doi.org/10.1007/BF00723128