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The Relationship Between Gasoline Additive Thermal Stability and Combustion Chamber Deposits
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Abstract
The relationship between thermal stability of gasoline additives and their effect on engine combustion chamber deposits (CCDs) has been explored using a wide range of candidate gasoline additive chemistries. Although a weak correlation may be observed between thermal stability and total CCDs, the data scatter is far too great to permit the relative CCD performance of additives to be predicted from thermogravimetric analysis (TGA) properties alone. It is concluded that TGA alone is too simple a measure to reflect the true complexity of deposit formation in a combustion chamber and that correlations with CCDs degrade further when TGAs are determined from UWG samples extracted from additivated gasolines.
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Clarke, L. and Haddock, G., "The Relationship Between Gasoline Additive Thermal Stability and Combustion Chamber Deposits," SAE Technical Paper 972840, 1997, https://doi.org/10.4271/972840.Also In
References
- Nagao, M. Kaneko, T. Omata, T. Iwamoto, S Ohmori, H. Matsuno, S. “Mechanism of combustion chamber deposit interference and effects of gasoline additives on CCD formation” SAE 95641 1995
- Richardson, C.E. Fischer, J.L. Pawczuk, G. “Evaluation of the effect of fuel composition and gasoline additives and combustion chamber deposits” SAE 962012 1996