Fuels for Advanced Air-Breathing Weapon Systems

Churchill, Arthur V.; Hager, John A.; Zengel, Alan E.

doi:10.4271/650804

Cited by 13 publications

(9 citation statements)

References 3 publications

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“…Initial work was carried out with air-saturated hydrocarbons in a narrow, near ambient temperature range in order to investigate storage stability characteristics. Subsequent studies were extended to higher temperatures in order to investigate the stability of such fuels when used in high-speed supersonic aircraft (Nixon, 1962;Churchill, 1966). Such studies were carried out mainly with fuels saturated with molecular oxygen via exposure to air although some limited work has been reported with reduced oxygen containing fuels (Nixon and Henderson, 1966; Taylor and Wallace, 1967).…”

Section: Introductionmentioning

confidence: 99%

Deposit Formation from Deoxygenated Hydrocarbons. 3. Effects of Trace Nitrogen and Oxygen Compounds

Taylor¹,

Frankenfeld²

1978

Ind. Eng. Chem. Prod. Res. Dev.

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The effect on deposit formation rate of the presence of trace amounts of nitrogen and oxygen containing impurities in deoxygenated JP-5 was investigated. The change in deposit formation rate, following the addition of representative nitrogen and oxygen compounds, was determined over a temperature range of 150-450 °C in fuels with molecular oxygen contents reduced to less than 1 ppm. The addition of nitrogen compounds as pure materials did not increase deposit formation over the temperature range studied. However, certain nitrogen compounds led to sludge formation at temperatures in the range of 20-25 °C. Of the oxygen compounds studied, peroxides as a class were found to be highly deleterious to fuel stability. Some acids, esters, and ketones were moderately deleterious while others had no significant effect on deposit formation. In general, cycloalkyl compounds were less harmful than their aliphatic or aromatic counterparts. Several interactions between trace impurities were discovered which affect deposit formation rates.

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Section: Introductionmentioning

confidence: 99%

Deposit Formation from Deoxygenated Hydrocarbons. 3. Effects of Trace Nitrogen and Oxygen Compounds

Taylor¹,

Frankenfeld²

1978

Ind. Eng. Chem. Prod. Res. Dev.

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“…(Chemical Week, 1967). Other studies have shown that hydrocarbon jet fuels exposed to such high temperature stress can degrade and form deposits (Churchill, 1966). One particular problem is the formation of deposits in fuel wing tanks which contain puddles of residual liquid hydrocarbon and hydrocarbon vapors.…”

mentioning

confidence: 99%

Kinetics of Deposit Formation from Hydrocarbons. Fuel Composition Studies

Taylor¹

1969

Product R&D

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“…Effect of Phase Type and Exclusion of Oxygen on Deposit Formation. In addition to extensive deposits at the bottom of tanks wetted with residual fuel, deposits have also been found on surfaces not directly wetted (Churchill et al, 1966). These so-called "vapor phase" deposits raise a question about the role of a condensed phase vs. a vapor phase in the formation of deposits on a solid surface.…”

Section: Resultsmentioning

confidence: 99%

“…(Chemical Week, 1967). Other studies have shown that hydrocarbon jet fuels exposed to such high temperature stress can degrade and form deposits (Churchill et al, 1966). One particular problem area is the formation of deposits in fuel wing tanks which contain puddles of residual liquid hydrocarbon and hydrocarbon vapors.…”

mentioning

confidence: 99%