近期,我院教师徐华平的研究成果“Effect of injection strategy and load on the performance of a common rail diesel engine fueled with jatrophacurcas biodiesel-diesel blend”在《Journal of the Brazilian Society of Mechanical Sciences and Engineering》上发表。
发布时间: 2019-10-16 浏览次数: 10

文简介如下:The present work attemptsto determine the optimal engine load, fuel injection pressure (FIP), start of injection timing (SOI) and pilot-main injection intervals (PMII) regarding the performance and emissions of a diesel engine fueled with J20 biodiesel (20 vol.% jatrophacurcasbiodiesel+ 80 vol.% 0# diesel).A four-factors and three-levels full factorial design and response surface methodology (RSM)wereemployed in the design of experiments and in the analysis of test results.All the models developed using RSM for measured responses like NOX, Soot, HC, CO emissions, brake specific fuel consumption (BSFC) and brake thermal efficiency (BTE) were determined to be statistically significant by analysis of variance (ANOVA).Interactive effects between load, FIP, SOI and PMII were analyzed using tri-dimensional response surface plots that were fitted using developedmultiple regression models.The multi-objective optimization was carried out using the desirability-based approach of the RSM for minimum emissions and BSFC andmaximum BTE. The best condition of engine parameters with J20was load of 65.71%, FIP of 160 MPa, SOI of 4.02 CA and PMII of 4.40 CA. And the optimal values with a high desirability of 0.866 were 1172 ppm, 0.0061FSN,2.78 ppm, 17.53 ppm, 203.818 g/kWh and 40.96%for NOX, Soot, HC, CO emissions, BSFC and BTErespectively.

 

本文下载地址:https://link.springer.com/article/10.1007%2Fs40430-019-1667-1