摘要
以动力工程中蒸汽在热机流动作功时状态参数的变化关系为例，讨论如何利用国际公式化委员会（ＩＦＣ）所制定的公式以确定工质的相态及未知参数，从而论证了ＩＦＣ公式的迭代及收敛性质．
Take the varing relations of state parameter for steam flows and works over steam turbine for example, this article discusses how to determine the phase state of working substance and the unknown parameters by means of the formulas developed by IFC, thus the characters of iteration and convergence of the formulas of IFC are testfied.
关键词
工程热力学
蒸汽
蒸汽动力工程
engineering, thermodyamics
characteristic of steam
steam power engineering
