Abstract：In order to realize the rapid detection of cetane number and reduce the usage of standard fuel, a mathematical model for predicting cetane number was established by using the power index method, and the cetane number calculated by the power index method was compared with the measured cetane number. The maximum prediction error of different kinds of diesel oil was obtained by predicting diesel oil with different compositions. The diesel oil type with high matching degree with the prediction model was found. Carry out targeted cetane number prediction. At the same time, the correction of prediction model results was proposed. The accuracy of power exponent fitting method can be further improved by correction, and the correction coefficient k is 0.991 when cetane number is 45. Power index method can reduce the usage of standard fuel samples, and the bench test cost is correspondingly reduced.
王家兴,张会成,凌凤香. 基于幂指数法预测柴油十六烷值[J]. 计量学报, 2020, 41(6): 748-751.
WANG Jia-xing,ZHANG Hui-cheng,LING Feng-xiang. Prediction of Diesel Cetane Number Based on Power Index Method. Acta Metrologica Sinica, 2020, 41(6): 748-751.
［1］姚肖刚, 戴连奎, 方骏. 基于支持向量机的柴油十六烷值近红外光谱测量方法［J］. 化工自动化及仪表, 2004, 31(2): 48-51.
Yao X G, Dai L K, Fang J. Diesel Cetane Number Measurement with NIR Spectroanalysis Using LS-SVM［J］. Control and Instruments in Chemical Industry, 2004, 31(2): 48-51.
［2］宗丽娜. 柴油十六烷值测定方法的研究进展［J］. 山东化工, 2015, 44(8): 59-61.
Zong L N. Review of Determination Methods of Diesel Fuel Cetane Number, Shandong Chemical Industry［J］. 2015, 44(8): 59-61.
［3］杨国为, 王守觉, 闫庆旭. 分式线性神经网络及其非线性逼近能力研究［J］. 计算机学报, 2007, 30(2): 189-191.
Yang G W, Wang S J, Yang Q X. Research of Fractional Linear Neural Network and Its Ability for Nonlinear Approach［J］. Chinese Journal of Computers, 2007, 30(2): 189-191.
［4］国家质量监督检验检疫总局. GB/T 33298-2016 柴油十六烷值的测定风量调节法［S］. 2016.
［5］国家质量监督检验检疫总局. GB/T 386-2010柴油十六烷值测定法［S］. 2011.
［6］王家兴, 张会成, 高波, 等. 基于CFR辛烷值测量系统的不确定度评定［J］. 计量学报, 2018, 39(4): 583-587.
Wang J X, Zhang H C, Gao B, et al. Uncertainty Evaluation for CFR Octane Number Testing System of Gasoline［J］. Acta Metrologica Sinica, 2018, 39(4): 583-587.
［7］李敬岩, 安晓春, 田松柏, 等. 柴油十六烷值快速分析技术研究［J］. 石油炼制与化工, 2016, 47(5): 101-107.
Li J Y, An X C, Tian S B, et al. Research On Fast Evaluation For Diesel Cetane Number［J］. Petroleum Processing And Petrochemicals, 2016, 47(5): 101-107.
［8］詹白勺, 杨建国, 刘雪梅, 等. 应用近红外可见光谱快速测量柴油十六烷值［J］. 光谱学与光谱分析, 2017, 37(6): 1749-1753.
Zhan B S, Yang J G, Liu X M, et al. Research on Rapid Determination of Diesel Cetane with Near-Infrared Spectroscopy［J］. Spectroscopy and Spectral Analysis, 2017, 37(6): 1749-1753.
［9］李虎. 十六烷值关联方法综述［J］. 炼油与化工, 2012, 23(6): 4-7.
Li H. Summarization of cetane number correlation methods［J］. Refining and Chemical Industry, 2012, 23(6): 4-7.
2020, Vol. 41 
