【摘要】 简述了风量调节法测定十六烷值的方法原理,利用FCD-Ⅱ柴油十六烷值测定机进行风量调节法测定柴油十六烷值的方法研究,研究了风量与十六烷值的关系,采用8个不同十六烷值的柴油样品对该方法的重复性进行考察,并与压缩比法测定结果进行对比。结果表明:风量与十六烷值呈非线性关系,通过参比燃料、利用内插方法可以精确计算十六烷值;该方法在十六烷值为25~75范围内的测量重复性小于1.0个单位,与压缩比法测定结果具有很好的一致性;风量调节法具有油品适用范围广、十六烷值测定范围宽、稳定性好、节省标准燃料和试样、操作简单的优点,可以作为柴油十六烷值的测定方法。更多还原

【Abstract】 Method for cetane number determination was studied by air flow control with FCD-Ⅱcetane number tester.The principle for air flow control was introduced.The relations between air flow and cetane number were tested,the repeatability of the method was investigated for 8samples having different cetane number were conducted,and the results were compared with that by compression ratio.The results show that the air flow has a nonlinear relationship with the cetane value.The cetane number can be calculated by interpolation method.Repeatability bias of cetane numbers measured is less than 1.0in the range of 25 to 75,which is in good agreement with the compression ratio method.更多还原