Aircraft Fuels

Heron, S. D.; BEATTY, HAROLD A.

doi:10.2514/8.720

Cited by 5 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The actual potential performance gain is not given on the octane number scale but on the so-called performance number scale (4), to which further reference will be made. On this more realistic scale a n octane unit in the upper range assumes a much greater importance than one in the lower range.…”

Section: Laboratory and Road Octane Numbers With Alcoholmentioning

confidence: 99%

“…This laboratory is engaged in a cooperative study with the U. S. Bureau of Mines, Shale Oil Demonstration Plant, Rifle, Colo., on the possible beneficial effect that alcohol-water injection, or aleo- Motor" Ford 6, compression ratio 6.8 to A = 90% catalytically cracked and 10% polymer. 4 B = 63% catalytically cracked, 7% polymer, and 30% thermally cracked. c C = 45% catalytically cracked, 5% polymer, and 50% straight-run.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Alcohol as an Antiknock Agent in Automotive Engines

Porter¹,

Wiebe²

1952

Ind. Eng. Chem.

View full text Add to dashboard Cite

rate constants were not presented, their data are of significant interest and demonstrated increased resistance of polyethylene to scission-type reactions in the absence of oxygen.An evaluation of initial and minimum rate constants in Equation 8 for DYNH involved in this work and for constants calculated from data reported by Pardun (IS), Jellinck (79, and Tobolsky ( 1 7 ) is shown in Table I. Obviously, reaction rates, k, cannot be compared in Table I because of differences in units and differences in conditions of the degradative processes applied.However, activation energies, E, and temperature coefficients of reaction rate, k'+loc./kt, derived from ratios of reaction rates, are independent of units and can be compared. Temperature coefficients of reaction rate and activation energies of oxidation of polyethylene DYNH, Fisher-Tropsch wax, and vulcanized natural rubber are roughly comparable. Also, activation energies and frequency factors found in these specific cases are in the same order of magnitude of the values (23,000 cal. mol.-1 and 105) reported by Eyring et al. ( 2 ) for oxygen-catalyzed isomerization and polymerization of substituted ethylenes. On the other hand, polyethylene resin depolymerized in the absence of oxygen at much higher temperatures displays a higher energy of activation of scission-type degradation which is characteristic of increased stability. ACKNOWLEDGMENT Aid extended by 1,. H. Wartman and F. M. Rugg in making the reported infrared spectrophotometric measurements, and by G. A. Crowe and other associates of the author is gratefully acknowledged.

show abstract

Section: Laboratory and Road Octane Numbers With Alcoholmentioning

confidence: 99%

mentioning

confidence: 99%

Alcohol as an Antiknock Agent in Automotive Engines

Porter¹,

Wiebe²

1952

Ind. Eng. Chem.

View full text Add to dashboard Cite

show abstract

“…Bridgeman (2) Heron and Beatty (6) About 90 99 Egloff and Van Arsdell (5) 99 Puckett (8) 92.2 Value given in this article 90.7…”

Section: Inmentioning

confidence: 99%

“…On the other hand. Heron and Beatty (6) report that methanol was equivalent to 100 octane number plus 6 ml. of tetraethyllead when run in a supercharged single-cylinder engine at 900 revolutions per minute and 212°F.…”

Section: Inmentioning

confidence: 99%