Heat-Release Behavior of Fuel Combustion Additives

The purpose of this study was to evaluate the relationship between solution-phase thermal stabilities of selected fuel additives and their effectiveness as combustion improvers. The additives selected for this study were 2-ethylhexyl nitrate, isopropyl nitrate, tetraethylene glycol dinitrate, di(ter...

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Bibliographic Details
Published in:Energy & fuels 2001-09, Vol.15 (5), p.1194-1199
Main Authors: Oxley, Jimmie C, Smith, James L, Rogers, Evan, Ye, Wen, Aradi, Allen A, Henly, Timothy J
Format: Article
Language:English
Subjects:
Applied sciences
Combustion of liquid fuels
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Theoretical studies. Data and constants. Metering
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Summary:The purpose of this study was to evaluate the relationship between solution-phase thermal stabilities of selected fuel additives and their effectiveness as combustion improvers. The additives selected for this study were 2-ethylhexyl nitrate, isopropyl nitrate, tetraethylene glycol dinitrate, di(tert-butyl) peroxide, and methylcyclopentadienyl manganese tricarbonyl. Decomposition studies were carried out at various temperatures on the neat additives as well as the additives dissolved in various solvents and fuels. Differential scanning calorimetry was used to survey thermal stabilities; high-pressure differential scanning calorimetry was used to determine the effects of pressure on the decomposition exotherms of the additives. Critical temperatures were calculated by the Frankāˆ’Kamenetskii equation for each additive. Neither the temperature of maximum exotherm nor the heat released by additive decomposition correlated well with the effectiveness of a given additive as a cetane improver.
ISSN:0887-0624
1520-5029
DOI:10.1021/ef010031v