HYDRATED ETHANOL AS A FUEL FOR A DI, CI ENGINE
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Anhydrous and hydrated (190 proof) ethanol were used as fuels for a DDC two-cycle, DI, CI engine to
evaluate performance and durability effects. The engine suffered no ill effects except for injector needle sticking, which
caused a reduction in combustion efficiency and power. A catalytic converter was very effective in reducing HC and CO
emissions from the engine. The water in the hydrated ethanol helped to reduce NOx, HC, and CO emissions. Replacing
the injectors at the end of a 454-h test eliminated the injector sticking and restored engine power.