Load characteristics of a spark-ignited ethanol engine with DME enrichment

Alternative fuels have become the new energy for future life. Compared with others, Dimethyl ether (DME) is regarded as one of the most promising choices for future internal combustion (IC) engines. Due to some negative properties of ethanol, spark-ignited (SI) ethanol engines always encounter some barriers such as the high fuel consumption, low power output, and difficulty in cold start. In order to deal with the above problems, the SI ethanol engine is enriched with DME aiming at improving the overall performance.

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