Performance and Emissions Characteristics of a Spark Ignition Engine Fueled with Dissociated and Steam-Reformed Methanol 852106
Dynamometer tests were conducted with a 2.3 liter four cylinder engine fueled with simulated dissociated and steam reformed methanol (2 H2+ CO and 3 H2 + CO2 respectively), and liquid methanol. Operation was characterized by flashback (violent propagation of a flame into the intake manifold ) which limited operation to lower power output than was obtainable using liquid methanol. It was concluded that: an automobile could not be operated solely on dissociated or steam reformed methanol over the entire required power range — a supplementary fuel system or power source would be necessary to attain the higher power levels; the use of reformed methanol, compared to liquid methanol, may result in a small improvement in thermal efficiency in the low power range; dissociated methanol is a better fuel than steam reformed methanol for use in a spark ignition engine; and use of dissociated or steam reformed methanol may result in lower exhaust emissions compared to liquid methanol.
Citation: McCall, D., Lalk, T., Davison, R., and Harris, W., "Performance and Emissions Characteristics of a Spark Ignition Engine Fueled with Dissociated and Steam-Reformed Methanol," SAE Technical Paper 852106, 1985, https://doi.org/10.4271/852106. Download Citation
D. M. McCall, T. R. Lalk, R. R. Davison, W. B. Harris
Sandia National Laboratory, Albuquerque, NM, Dept. of Mechanical Engineering, Texas ASM University, College Station, TX, Dept. of Chemical Engineering, Texas A&M University
1985 SAE International Fall Fuels and Lubricants Meeting and Exhibition
Alternate Fuels for SI Engines-SP-0638, SAE 1986 Transactions - Fuels and Lubricants-V94-7