The Influence of Gasoline/Ethanol Blends on Emisssions and Fuel Economy 922378

A 1117cc Ford Valencia SI engine was used to investigate the influence on emissions of relatively large (10-30%) additions of ethanol to gasoline. The ethanol was shown to extend the lean burn range and improve the specific energy consumption in the lean burn region. Addition of ethanol significantly reduced NOx and CO by over 50% and increased slightly HC and condensible hydrocarbons, but had little effect on NMHC.


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