Journal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
Volume 45, Issue 1, Pages 419-433Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15567036.2023.2171516
Keywords
Trimethyl borate; fuel additive; combustion; engine performance; exhaust emission
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In this study, trimethyl borate was analyzed as a fuel additive for a spark-ignition engine. The results showed that the addition of trimethyl borate can accelerate combustion and improve engine performance and emissions.
Boron derivatives are one of the promising additives as a lubrication oil and fuel additive for manufacturing, aviation, aerospace, and defense technologic products. In this study, trimethyl borate was analyzed for combustion characteristics of a single-cylinder, four-stroke spark-ignition engine as a fuel additive. The engine operated at 2500 rpm, and the experiments were conducted at 25%, 50% 75%, and full load conditions. Trimethyl borate was added with 1%, 1.5%, 2%, and 2.5% by wt into gasoline, and combustion characteristics, engine performance, and exhaust emissions were compared with the reference fuel. In-cylinder pressure, heat release rate, the start of combustion and duration, brake-specific fuel consumption, thermal efficiency, and exhaust emissions were examined. Trimethyl borate accelerates the combustion with closing to full throttling load. At full throttling, maximum in-cylinder pressure was observed for gasoline as 30.51 bar and for the TriM2.5 as 26.88 bar. Minimum brake-specific fuel consumption was observed at 75% loading with 495.31 g/kWh, and the maximum thermal efficiency seemed like 16.5% for the Trim2.5 rate. CO and HC emissions were improved with all the addition rates and the upmost value was obtained at Trim2.5 with 12.1% and 14.4% respectively.
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