论文部分内容阅读
燃点与自燃点都是与燃烧有关的物理性质指标之一,但经常被混为一谈。如人民教育出版社83年版全日制初中《物理》第二册在热机一章中写道:“柴油机是在压缩冲程末,由喷油嘴向气缸内喷射雾状柴油,雾状柴油遇到远远超过它的燃点的热空气立即燃烧(这种点火方式叫做压燃式)。” 必须指出,其中的“燃点”应是自燃点。通常,可燃性液体如油料在规定的加热条件下,它产生的蒸气与周围空气形成混合气,当明火接近时,初
Both ignition and ignition points are one of the indicators of the physical properties associated with combustion, but are often confused. For example, People’s Education Press, 1983, full-time junior high school, “Physics”, second volume wrote in the heat engine chapter: “Diesel engine is at the end of the compression stroke, the jet nozzle to the cylinder spray mist diesel, mist diesel encountered The hot air, which far exceeds its ignition temperature, burns immediately (this type of ignition is called compression ignition). ”It must be pointed out that the“ ignition point ”should be a self-ignition point. Generally, a flammable liquid such as oil under the specified heating conditions, the steam it produces with the surrounding air to form a mixture, when the open flame is close, the beginning