柴油十六烷值测量系统的不确定度评价  

Uncertainty Evaluation for Cetane Number Testing System

作　　者：王家兴 张会成 凌凤香 WANG Jia-xing;ZHANG Hui-cheng;LING Feng-xiang(Sinopec Dalian Research Institute of Petroleum and Petrochemicals,Liaoning Dalian 116045,China)

机构地区：[1]中国石油化工股份有限公司大连石油化工研究院,辽宁大连116045

出　　处：《当代化工》2018年第12期2693-2695,2699,共4页Contemporary Chemical Industry

摘　　要：采用的柴油样品作为试样,根据GB/T 386-2010方法要求测试其十六烷值。在十六烷值测量系统中,对该十六烷值系统工作过程中的不确定度来源进行详细分析。不确定度主要来自十六烷值的重复性测量、十六烷值参比燃料混合器等。给出了这些分量的不确定度量值。不确定的合成结果表明,在置信水平95%时,该十六烷值测量系统的扩展不确定度为0.9。Taking diesel fuel as test sample,the cetane number of sample was tested based on the GB/T 386-2010 method.In the cetane number test system,the source of uncertainty in the measurement of cetane number was analyzed,including automatic manufacture standard sample machine,repeated test of cetane number and CFR engine. The uncertainty was calculated.The uncertainty synthesized results of all the components showed that the expanded uncertainty of the cetane number testing system was 0.9 at 95% confidence level.

关 键 词：柴油 十六烷值 油品检测 不确定度 

分 类 号：TB99[一般工业技术—计量学]