Resumo

CIPOLAT, D.  e  BHANA, N.. Technical Note: A brief comparison of the performance of a compression ignition engine fuelled on methanol/dimethyl ether and diesel. R&D j. (Matieland, Online) [online]. 1998, vol.14, pp.37-42. ISSN 2309-8988.

The work reported here investigates some 'performance characteristics of a compression ignition engine fuelled on methanol as the main fuel and dimethyl ether as ignition promotor. Constant speed tests were performed on diesel fuel and then repeated with methanol and dimethyl ether. In addition two exhaust species, namely CO and N0_X are compared for both fuelling methods. Results of tests performed at 1 550 rev/min show that, for any given equivalence ratio, both the brake power and brake specific fuel conversion efficiency are higher in the case of diesel fuelling. A significant reduction in N0_X was achieved with methanol and dimethyl ether fuelling, while the CO emissions were lower only at higher values of equivalence ratio.

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