Spontaneous Ignition Properties of Fuels and Hydrocarbons

Johnson, J. E.; Crellin, John W.; Carhart, Homer W.

doi:10.1021/ie50524a040

Cited by 5 publications

(3 citation statements)

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“…Comparison of the range of products found in this investigation with those reported from static and flow reactors (Townend et al, 1934;Prettre, 1949;Johnson et al, 1953;Westbrook et al, 1988;Cullis and Hinshelwood, 1949;Malmberg andBobbitt, 1955 andSalooja, 1960) shows an enormous difference. Reactions in flow and static systems yielded a very wide range of products, typically oxides of carbon, alkylhydroperoxides, hydrogen peroxide, dialkyl peroxides, cyclic ethers, aldehydes and ketones, from the original fuel molecule and from broken carbon chains.…”

Section: Extent Of Reactionmentioning

confidence: 56%

“…Bone and Hill, 1930;Townend et al, 1934;Prettre, 1949;Johnson et al, 1953 andWestbrook et al, 1988) or continuous flow systems (Cullis and Hinshelwood, 1949;Malmberg and Babbitt, 1955;Salooja, 1960;Cartlidge and Tipper, 1961;Sahetchian et aI., 1979 andGokalp et al, 1981). Both reactor types have used long residence times and conventional flow systems have operated at atmospheric pressure with low Reynolds numbers and consequent laminar flow, Thus the Reynolds number had approximate values of 3 (Cartlidge and Tipper, 1961), 14 (Sahetchian et aI., 1979) and 20 (Gokalp et al, 1981).…”

Section: Introductionmentioning

confidence: 99%

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The Initiation of the Pre-Flame Reaction of n-Heptane in a Motored Engine

Cartlidge¹,

Graham²

1995

Combustion Science and Technology

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A motored, unfired CFR engine was red with a rich heptane/air mixture. The jacket temperature was maintained at lOOcC with a few experiments at Oee. The ·exhaust vapours were totally condensed by a novel exhaust recovery system. After completely removing cylinder deposits. no reaction products were round at compression ratios up to 14: I. At a compression ratio or 16: I the charge autoignited/detonated. Subsequently, reaction products were round at a compression ratio or 6: I and thereafter in increasing quantities up to 14.6: I, the reproducible threshold of autoignition. This entire sequence or experiments was reproduced four times. Samples of the condensate were concentrated by vacuum distillation and subjected to qualitative and quantitative analyses. A very limited range of peroxides and carbonyls were formed in very low concentrations in all experiments where autoignition did not occur. These were identified and their rates of formation calculated. Some thermodynamic inferences were drawn as to their heats of formation. The maximum compression temperatures were calculated. At compression ratios below 16: I, it was concluded that the preflame reaction was initiated on the surface or the combustion chamber, after it had been subjected to autoignitions/detonations,

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Section: Extent Of Reactionmentioning

confidence: 56%

Section: Introductionmentioning

confidence: 99%

The Initiation of the Pre-Flame Reaction of n-Heptane in a Motored Engine

Cartlidge¹,

Graham²

1995

Combustion Science and Technology

View full text Add to dashboard Cite

show abstract

“…Low temperature mechanism of hydrocarbon fuel combustion is believed to be more significant in the spontaneous ignition of fuels in engine operation (77). Studies have been made at Naval Research Laboratory to secure further information of the relationship between fuel composition and ignition behavior.…”

Section: Combustion Reactionsmentioning

confidence: 99%