Resumo

GASPARI, R.  e  CIPOLAT, D.. Preliminary emissions analysis of a methanol/dimethyl ether fuelled compression ignition engine. R&D j. (Matieland, Online) [online]. 1997, vol.13, pp.1-7. ISSN 2309-8988.

A great deal of research has been conducted using methanol as an alternative fuel. With increasingly stringent emission legislation in Europe, the United States and Japan, researchers dedicate much time to studying the emission characteristics of this fuel. This research is concerned with a preliminary study of the emission characteristics of a compression ignition engine fuelled with methanol as the main fuel, and dimethyl ether (DME) as the ignition promotor. Tests were conducted at 1 550 rpm and 1 ISO rpm with varying load. The results were then compared to those of baseline tests using diesel fuelling. The results showed that there was a considerable reduction in smoke emissions using methanol/DME fuelling. It was also found that there was a significant reduction in NO emissions. However, the CO₂ and CO emissions were found to be higher than the equivalent diesel baseline tests.

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