cetane number

简明释义

十六烷值

英英释义

例句

1.The engine performance can be significantly improved by using diesel fuel with a higher cetane number.

使用具有更高十六烷值的柴油燃料可以显著改善发动机性能。

2.A cetane number of 50 is generally considered optimal for most diesel engines.

对于大多数柴油发动机而言，十六烷值为50通常被认为是最佳的。

3.The cetane number of a diesel fuel can affect cold starting performance in winter.

柴油燃料的十六烷值会影响冬季的冷启动性能。

4.Higher cetane numbers can lead to reduced emissions and better fuel economy.

更高的十六烷值可以减少排放并提高燃油经济性。

5.Fuel suppliers often advertise their products based on the cetane number to attract customers.

燃料供应商通常根据十六烷值来宣传他们的产品以吸引顾客。

作文

The cetane number is a crucial parameter in the field of diesel fuel quality. It measures the ignition quality of diesel fuel, indicating how readily the fuel will ignite when injected into the engine's combustion chamber. A higher cetane number means that the fuel will ignite more quickly, leading to a smoother and more efficient combustion process. This is particularly important in modern diesel engines, which are designed to operate with fuels that have higher ignition qualities. In general, diesel fuels with a cetane number of 40 to 42 are considered acceptable for most diesel engines, while those with a cetane number above 50 are regarded as high-quality fuels. The cetane number is determined through standardized testing methods, such as the ASTM D613 test, which compares the ignition delay of the fuel to that of reference fuels with known cetane numbers. One of the key benefits of using diesel fuel with a high cetane number is improved engine performance. Fuels with higher cetane numbers can lead to better cold starting, reduced noise levels during operation, and lower emissions of harmful pollutants. This is because better ignition quality allows for more complete combustion of the fuel, reducing the amount of unburned fuel that is emitted into the atmosphere. Additionally, engines running on high cetane number fuels tend to have fewer maintenance issues, as the combustion process is more efficient and less likely to produce soot and other deposits that can harm engine components. Moreover, the cetane number can also influence fuel economy. Studies have shown that using diesel fuel with a higher cetane number can improve fuel efficiency, as the engine can extract more energy from the fuel during combustion. This can lead to cost savings for consumers and businesses that rely on diesel-powered vehicles and equipment. However, it is essential to note that the cetane number is just one aspect of diesel fuel quality. Other factors, such as the fuel's density, viscosity, and sulfur content, also play significant roles in determining overall fuel performance and emissions. Therefore, while selecting a diesel fuel with a high cetane number is important, it should be part of a broader strategy for optimizing fuel quality and engine performance. In conclusion, the cetane number is a vital measure of diesel fuel quality that directly impacts engine performance, emissions, and fuel economy. Understanding the significance of cetane ratings can help consumers make informed choices about the fuel they use, ultimately leading to more efficient and environmentally friendly diesel engines. As technology continues to advance, the importance of cetane number in diesel fuel will only become more pronounced, making it an essential aspect of fuel selection for both manufacturers and consumers alike.

十六烷值是柴油燃料质量领域中的一个关键参数。它衡量柴油燃料的点火质量，指示燃料在注入发动机燃烧室时点燃的容易程度。较高的十六烷值意味着燃料会更快点燃，从而导致更平稳、更高效的燃烧过程。这在现代柴油发动机中尤为重要，因为这些发动机设计用于使用具有更高点火质量的燃料。一般而言，十六烷值在40到42之间的柴油燃料被认为适合大多数柴油发动机，而十六烷值超过50的燃料则被视为高质量燃料。十六烷值通过标准化测试方法（如ASTM D613测试）来确定，该测试将燃料的点火延迟与已知十六烷值的参考燃料进行比较。使用高十六烷值柴油燃料的主要好处之一是改善发动机性能。具有较高十六烷值的燃料可以提高冷启动性能，降低操作噪音，并减少有害污染物的排放。这是因为更好的点火质量使燃料的燃烧更加完全，从而减少了排放到大气中的未燃烧燃料的数量。此外，使用高十六烷值燃料的发动机往往会遇到更少的维护问题，因为燃烧过程更高效，不太可能产生对发动机部件有害的烟尘和其他沉积物。此外，十六烷值还会影响燃油经济性。研究表明，使用高十六烷值柴油燃料可以提高燃油效率，因为发动机可以在燃烧过程中从燃料中提取更多能量。这可以为依赖柴油动力车辆和设备的消费者和企业带来成本节约。然而，需要注意的是，十六烷值只是柴油燃料质量的一个方面。燃料的密度、粘度和硫含量等其他因素也在决定整体燃料性能和排放方面发挥着重要作用。因此，尽管选择高十六烷值柴油燃料很重要，但它应该是优化燃料质量和发动机性能的更广泛策略的一部分。总之，十六烷值是柴油燃料质量的重要指标，直接影响发动机性能、排放和燃油经济性。理解十六烷值的意义可以帮助消费者做出明智的燃料选择，最终导致更高效、环保的柴油发动机。随着技术的不断进步，十六烷值在柴油燃料中的重要性只会愈加显著，使其成为制造商和消费者在燃料选择中不可或缺的方面。