【摘要】 本文讨论了三个问题:水和蒸汽热力学性质的计算,朗肯循环的计算,化工中蒸汽动力过程的合成。关于第一个问题给出了由饱和压力计算饱和温度的公式,在IFC公式的基础上给出了在子区域2、3和4保证成功的算法;关于第二个问题给出了实际朗肯循环膨胀终点的有效算法;关于第三个问题给出了蒸汽动力系统的合成原则和计算方法。对上述三个问题都给出了程序框图、程序设计要点,并在计算机上做了充分验算。本文分上下两篇刊出,上篇讨论第一、第二个问题。更多还原

【Abstract】 In this paper,three problems are discusses: (1)the calculation of thermodynamic properties of water and steam;(2)the Rankine cycle calculation; and (3) the synthesis of steam power system.For the first problem an empirical equation is proposed to estimate the saturate temperature from the saturate pressure, and on the basis of the IFC formula, a new calculation method is a success in the area 2, 3 and 4.For the second problem an effective method is given to calculate the terminal point of the Rankine cycle.For the third problem the synthesis principle and the calculation method are introduced.The block diagrams of the procedure and the key design point of the above three problems are shown in the paper and on the other hand they are fully tested in the computation programs. The present paper is seperated into two parts.The first and the second problems are discussed in part One and the third in the later.更多还原