Rotary Engine Combustion With Hydrogen Addition
Copyright policy )Rotary Engine Combustion With Hydrogen Addition
<div class="htmlview paragraph">The lean operating limit of a rotary combustion engine was extended by hydrogen-enriched fuel to equivalence ratios as low as 0.49. Reductions in NO<sub>x</sub> and CO emissions from baseline conditions were observed, although HC emissions increased significantly.</div> <div class="htmlview paragraph">The effect of hydrogen-induced lean combustion on indicated thermal efficiency was found to be dependent on the change in H<sub>2</sub>/C<sub>8</sub>H<sub>18</sub> fraction with decreasing equivalence ratio. An increase in H<sub>2</sub>/C<sub>8</sub>H<sub>18</sub> fraction with decreasing equivalence ratio had little effect on indicated thermal efficiency, whereas a constant or decreasing H<sub>2</sub>/C<sub>8</sub>H<sub>18</sub> fraction led to a marked decrease. The brake thermal efficiency when compared at constant power increased marginally.</div>
- University of California, Berkeley United States
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