汽油的热值高还是柴油的热值高?
汽油的热值高还是柴油的热值高?
物理人气:331 ℃时间:2019-10-09 12:09:31
优质解答
热值的单位是每千克或每立方米的焦耳数(J/kg或J/m3),也就是指单位质量(或体积)的燃料在完全燃烧时所放出的热量.热值通常是用仪器(热量计)测得,或者根据燃料分析结果计算得到.汽油为46MJ/kg,柴油为42.6MJ/kg.
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