Research and development of alcohol fuel useage in spark-ignited engines
Technical Report
·
OSTI ID:5833216
This report is a concluding document of a one year investigation of methanol fuel utilization in spark ignited engines. The cold starting study of methanol occupies a dominant portion of this report. It contains three phases: (1) computer modeling wherein the effects of fuel concentration, droplet size, electric heating and use of reformed methanol are evaluated as functions of ambient temperature; (2) experimental cold chamber studies which are parametrically allied to the modeling studies and wherein a piezo-electric device is used to generate fuel droplets in the 10 micron range; (3) vehicle studies relating to starting vehicles on alcohol fuels using state-of-the-art fuel systems and fuel blending agents. The study during this time period has focused on three-way catalyst efficiency and vehicle performance with elevated engine compression ratio (12:1). It is found that by minor adjustments the catalyst efficiency can be as good on alcohol as gasoline, whereas without these adjustments, the vehicle exhaust NO/sub x/ is elevated when using methanol fuel even though the ''engine out'' NO/sub x/ is, as expected, lower than gasoline.
- Research Organization:
- Santa Clara Univ., CA (USA)
- DOE Contract Number:
- FG03-84CE50036
- OSTI ID:
- 5833216
- Report Number(s):
- DOE/CE/50036-H1; ON: DE86009881
- Country of Publication:
- United States
- Language:
- English
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