Effects of fuel evaporation on the octane number of methanol-gasoline blended fuels
- Univ. of Capetown (South Africa)
A procedure is described to estimate the influence of end-gas temperature on Octane Number. Blending methanol with gasoline is known to cause a disproportionate increase in Research Octane Number, and this is found to correlate well with the evaporative cooling characteristics of these blends. The Motor Octane Number test eliminates evaporative effects, and the difference between the two test methods is evaluated in terms of evaporative cooling. It is concluded that the high heat of vaporization of methanol is largely responsible for the excellent RON performance of methanol-gasoline blended fuels. 17 refs., 11 refs., 2 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 91228
- Report Number(s):
- CONF-9410173-; TRN: 95:006038-002
- Journal Information:
- SAE Special Publication, Journal Issue: 1054; Conference: Society of Automotive Engineers (SAE) international fuels and lubricants meeting and exposition, Baltimore, MD (United States), 17-20 Oct 1994; Other Information: PBD: Oct 1994
- Country of Publication:
- United States
- Language:
- English
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