Enhancing the performance of preheated B20 vegetable seed oil by varying the compression ratio and using cerium oxide as a stabilizer
DOI:
https://doi.org/10.18311/jmmf/2021/30108Keywords:
Compression, cerium oxide, vegetable seed biofuel, saturated compounds, thermal efficiency.Abstract
The main purpose of the present investigation is to effectively utilize the biofuel along with cerium oxide as a stabilizer powered with a single-cylinder variable compressible ratio diesel engine fuelled with the 20% (blend B20) waste vegetable seed biofuel (WVO). Ethylbased esters production process from neutralized WVO is optimized by sodium hydroxide (NaOH) single-phase reaction to enhance the production of the biofuel. B20 WVO biodiesel behaviour is tested in a diesel engine by varying the compression ratio 16 and 18. Compression ratio 16 had better thermal efficiency and less COx and NOx emission when compared to compression ratio 18. 250 bar injection pressure and 19 injection timing were found to have better fuel efficiency and emission characteristics. The influence of cerium oxide as a stabilizer in both the engine performance and the produced emissions was evaluated. From the result, it is observed that the increase in injection pressure from 210 bar to 250 bar leads to an increase in brake thermal efficiency by 6.1%, mechanical efficiency increases by 4.4%, and a decrease in brake specific fuel consumption by 5.7%. The CO and HC emission decreases by 3.9% and 3.2% respectively then retarding the injection timing.Downloads
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Accepted 2022-04-28
Published 2022-04-28
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