Extending the lean operation limit of a gasoline Wankel rotary engine using hydrogen enrichment
| Autor: | F. Amrouche, Jae Wan Park, Scott Varnhagen, Paul A. Erickson |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Thermal efficiency
Materials science Hydrogen Renewable Energy Sustainability and the Environment 020209 energy Wankel engine 05 social sciences Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Condensed Matter Physics Automotive engineering Wide open throttle Fuel Technology chemistry Engine efficiency Hydrogen fuel 0502 economics and business 0202 electrical engineering electronic engineering information engineering 050207 economics Gasoline Lean burn |
| Zdroj: | International Journal of Hydrogen Energy. 41:14261-14271 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2016.06.250 |
| Popis: | In this paper, an experimental investigation of the effect of hydrogen enrichment on a gasoline Wankel engine's Lean Operation Limit (LOL) was performed. A monorotor Wankel engine operating at 3000 rpm and wide open throttle was modified to run on gasoline and hydrogen blends. Excess air ratio varying from stoichiometric mixtures to the engine lean burn limit with 0%, 3% and 6% of hydrogen energy fractions in the intake were investigated. The experimental results proved that adding hydrogen to gasoline extends the original engine LOL while improving the engine stability. An increased thermal efficiency and reduced burn duration, brake specific energy consumption, and HC, CO and CO2 emissions were observed with hydrogen enrichment. Furthermore, the extension of the engine LOL with hydrogen addition could potentially control the NOx emissions of a gasoline Wankel engine to very low levels without using a three-way catalytic converter. |
| Databáze: | OpenAIRE |
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