| Experimental Research on the Carbon Dioxides Reduction Potential by Substitution Gasoline with Ethanol and Propane under Reactivity Controlled Compression Ignition in a Single Cylinder Engine
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| Jeong-Woo Lee 1, Sanghyun Chu 2, Jaegu Kang 2, Kyoungdoug Min 2 |
1Department of Autonomous Vehicle System Engineering , Chungnam National University
2Department of Mechanical Engineering , Seoul National University |
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| ABSTRACT |
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In this experiment, it was experimentally investigated the combustion and exhaust characteristics, as well as the thermal
effi ciency, of RCCI combustion using gasoline, ethanol, and propane as low-reactivity fuels under four operating conditions.
For each operating condition, gISNO x was limited to 0.15 g/kWh, and gISSmoke was limited to below 15 mg/kWh. The
experiment was conducted by determining the operating conditions that satisfi ed these limitations and resulted in the highest
city thermal effi ciency. The low-reactivity fuels were supplied by port injection, while diesel was directly injected into the
combustion chamber using a diesel injector. As a result, when gasoline is replaced with low-carbon fuels like ethanol and
propane, the reduction in CO 2 emissions occurred. Under maximum power conditions, using ethanol allowed for a maximum
reduction in CO 2 emissions of 6.81%. Depending on the driving conditions, ethanol showed a reduction ranging from 3.60
to 6.81%, while propane exhibited a reduction ranging from 3.10 to 5.64%. Additionally, by substituting with ethanol and
propane, the GIE could be improved up to 44.73 and 43.56%, respectively. |
| Key Words:
Carbon dioxides (CO 2 ) · Dual-fuel combustion · Ethanol · Gasoline · Propane · Reactivity controlled compression ignition (RCCI)
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Corresponding Author.
Kyoungdoug Min , Email. 
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