-
GB/T 386-2021 柴油十六烷值测定法 Standard test method for cetane number of diesel fuel oil
本文件描述了用十六烷值试验机测定柴油十六烷值的试验方法。样品在特定操作条件下，由一个标准的单缸、四冲程、可变压缩比、间歇喷射柴油发动机进行测试。<br />本文件适用于压燃式发动机燃料十六烷值的定量测定。十六烷值的范围为0~100，但典型的测试范围为30~65。<br />本文件也适用于非常规燃料，如合成燃料、植物油及类似产品十六烷值的定量测定。<br />注：本文件采用〔SI〕国际单位制，括号内英制单位作为参考。...
2023-05-04 18:48:02浏览：46
查看 -
ASTM D613-2018 柴油十六烷值试验方法 Standard Test Method for Cetane Number of Diesel Fuel Oil
1.1 This test method covers the determination of the rating of diesel fuel oil in terms of an arbitrary scale of cetane numbers using a standard single cylinder, four-stroke cycle, variable compression ratio, indirect injected diesel engine. 1.2 The cetane number scale covers the range from zero (0) to 100, but typical testing is in the range of 30 to 65 cetane number. 1.3 The values for operating conditions are stated in SI units and are to be regarded as the standard. The values given in parentheses are the historical inch-pound units for information only. In addition, the engine measurements continue to be in inch-pound units because of the extensive and expensive tooling that has been created for these units. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For more specific warning statements, see Annex A1. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee....
2023-05-04 09:48:02浏览：47
查看 -
NB/SH/T 6035-2021 柴油导出十六烷值的测定 定容燃烧室着火滞后和燃烧滞后法
本文 件 规 定 了用定容燃烧室着火滞后和燃烧滞后法测定柴油导出十六烷值的方法。<br />
本文件适用于常规柴油、添加十六烷值改进剂的柴油，也适用于生物柴油及含有 生 物 柴油 和柴油调合组分的调合燃料等非常规燃料。本文件适用的着火滞后期范围是1.9 ms一25ms，燃烧滞后期范围为2.5 ms一160 ms(导出十六烷值为30~70)。本文件所述精密度仅适用于范围为39~67的导出十六烷值。...2023-03-07 07:32:01浏览：71
查看 -
GB/T 386-2021柴油十六烷值测定法Standard test method for cetane number of diesel fuel oil
GB/T 386-2021柴油十六烷值测定法Standard test method for cetane number of diesel fuel oil...
2022-03-18 17:24:56浏览：60
查看 -
乙醇、乙二醇二甲醚与柴油混合燃料排放特性研究
提出了将乙二醇二甲醚作为乙醇柴油燃料的一种组成成分,利用乙二醇二甲醚好的发火性来改善乙醇柴油燃料差的发火性.试验表明乙二醇二甲醚与乙醇、柴油互溶,具有较好的稳定性.对三种比例混合燃料测试了柴油机在主要工况下的性能与排放特性,得出乙二醇二甲醚加入量以E20为最佳,此时,烟度降低了约80%,NOx略有增加,燃油消耗率略有下降.此外考察了随着十六烷值的变化对混合燃料的排放特性的影响,得出随着十六烷值的增加,NOx排放逐渐增加,对烟度和经济性存在一个最佳值....
2020-09-30 09:14:00浏览：70
查看
