ISO 5165:2017 石油产品 柴油的点火质量测定 十六烷引擎法
标准编号：ISO 5165:2017
中文名称：石油产品 柴油的点火质量测定 十六烷引擎法
英文名称：Petroleum products — Determination of the ignition quality of diesel fuels — Cetane engine method
发布日期：2017-12
标准范围
ISO 5165:2017使用标准单缸、四冲程循环、可变压缩比、间接喷射柴油发动机，根据十六烷值（CNs）的任意比例建立了柴油燃料油的等级。CN提供了压燃式发动机中柴油燃料油的点火特性的量度。CN是在预燃烧室型压燃试验发动机中以恒定速度测定的。然而，测试发动机性能与全尺寸、变速和可变负载发动机的关系还没有完全理解。ISO 5165:2017适用于0 CN至100 CN的整个刻度范围，但典型测试范围为30 CN至65 CN。CEN在2013年进行的一项实验室间研究（10个样品，范围为52.4 CN至73.8 CN）[1]证实，通过该测试方法可以测试合成或加氢处理的石蜡柴油，含有高达7%（V/V）的脂肪酸甲酯(FAME)，并且精密度相当适合传统燃料。该测试可用于非常规燃料，如合成燃料、植物油等。然而，与这种材料在全尺寸发动机中的性能的关系尚未完全理解。具有干扰燃油重力流向燃油泵或通过喷油器喷嘴输送的流体特性的样品不适合通过该方法进行评级。注:本文件以SI单位规定了运行条件，但发动机测量以英寸-磅单位规定，因为这些是设备制造中使用的历史单位，因此本文件中的一些参考文献在括号中包括了这些单位。
ISO 5165:2017 establishes the rating of diesel fuel oil in terms of an arbitrary scale of cetane numbers (CNs) using a standard single cylinder, four-stroke cycle, variable compression ratio, indirect injected diesel engine. The CN provides a measure of the ignition characteristics of diesel fuel oil in compression ignition engines. The CN is determined at constant speed in a pre-combustion chamber-type compression ignition test engine. However, the relationship of test engine performance to full scale, variable speed and variable load engines is not completely understood.ISO 5165:2017 is applicable for the entire scale range from 0 CN to 100 CN but typical testing is in the range of 30 CN to 65 CN. An interlaboratory study executed by CEN in 2013 (10 samples in the range 52,4 CN to 73,8 CN)[1] confirmed that paraffinic diesel from synthesis or hydrotreatment, containing up to 7 % (V/V) fatty acid methyl ester (FAME) can be tested by this test method and that the precision is comparable to conventional fuels.This test can be used for unconventional fuels such as synthetics, vegetable oils, etc. However, the relationship to the performance of such materials in full scale engines is not completely understood.Samples with fluid properties that interfere with the gravity flow of fuel to the fuel pump or delivery through the injector nozzle are not suitable for rating by this method.NOTE This document specifies operating conditions in SI units but engine measurements are specified in inch-pound units because these are the historical units used in the manufacture of the equipment, and thus some references in this document include these units in parenthesis.
标准预览图
