BS EN 16715:2015规定了定量测定点火和燃烧的试验方法 用于压燃式发动机的中间馏分燃料的延迟。该方法利用了 定容燃烧室，将燃油直接喷射到加热的压缩合成空气中。A. 动态压力波是由被测产品的燃烧产生的。给出了一个方程 根据以下公式确定的点火延迟和燃烧延迟计算得出的十六烷值（DCN） 动态压力曲线。本欧洲标准适用于中间馏分燃料、脂肪酸甲酯（FAME）和混合物 柴油燃料和名声。该方法也适用于非石油来源的中间馏分燃料油砂 基础燃料、含生物柴油材料的混合燃料、含十六烷值的柴油 改进剂添加剂和低硫柴油。然而，用户尤其是在 非常规馏出燃料应注意衍生十六烷值与 实际发动机中的燃烧行为尚未完全了解。本欧洲标准涵盖的点火延迟范围为2.47 ms至4.09 ms，燃烧延迟范围为 3,71毫秒至6,74毫秒（67 DCN至39 DCN）。注1:燃烧分析仪可以测量更短或更长的点火和燃烧延迟，但精度不高 知道。注2:没有关于67至39范围外的DCN与EN ISO 5165相比的信息。注3:就本欧洲标准而言，表达式“%（V/V）”用于表示体积分数 φ、 “%（m/m）”是质量分数ω。警告——本标准的使用可能涉及危险材料、操作和设备。 本标准并非旨在解决与其使用相关的所有安全问题。 这就是 本标准使用者有责任采取适当措施确保安全和健康 在应用本标准之前对人员进行培训，并满足以下方面的法定和监管要求: 这就是目的。交叉引用:EN ISO 3170ISO 3170EN ISO 3171ISO 3171EN ISO 3696ISO 3696ISO 1998-2IP 537ASTM D7668-13EN ISO 5165:1998ISO 5165:1998ASTM RR:D02-1771:2013ASTM RR:D02-1502EN ISO 4259ISO 4259ASTM D613-10购买本文件时提供的所有当前修订版均包括在内。

BS EN 16715:2015 specifies a test method for the quantitative determination of ignition and combustion delays of middle distillate fuels intended for use in compression ignition engines. The method utilizes a constant volume combustion chamber with direct fuel injection into heated, compressed synthetic air. A dynamic pressure wave is produced from the combustion of the product under test. An equation is given to calculate the derived cetane number (DCN) from the ignition and combustion delays determined from the dynamic pressure curve.This European Standard is applicable to middle distillate fuels, fatty acid methyl esters (FAME) and blends of diesel fuels and FAME. The method is also applicable to middle distillate fuels of non-petroleum origin, oilsands based fuels, blends of fuel containing biodiesel material, diesel fuel oils containing cetane number improver additives and low-sulfur diesel fuel oils. However, users applying this standard especially to unconventional distillate fuels are warned that the relationship between derived cetane number and combustion behaviour in real engines is not yet fully understood.This European Standard covers the ignition delay range from 2,47 ms to 4,09 ms and combustion delay from 3,71 ms to 6,74 ms (67 DCN to 39 DCN).NOTE 1 The combustion analyser can measure shorter or longer ignition and combustion delays, but precision is not known.NOTE 2 There is no information about how DCNs outside the 67 to 39 range compare to EN ISO 5165.NOTE 3 For the purpose of this European Standard, the expression "% (V/V)" is used to represent the volume fraction φ, and "% (m/m)" the mass fraction ω.WARNING - The use of this standard can involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of users of this standard to take appropriate measures to ensure the safety and health of personnel prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.Cross References:EN ISO 3170ISO 3170EN ISO 3171ISO 3171EN ISO 3696ISO 3696ISO 1998-2IP 537ASTM D7668-13EN ISO 5165:1998ISO 5165:1998ASTM RR: D02-1771:2013ASTM RR: D02-1502EN ISO 4259ISO 4259ASTM D613-10aAll current amendments available at time of purchase are included with the purchase of this document.