电站热力系统能级理论泛化方程  

Generalized Equation of Energy Level Theory of Thermodynamic System in Power Plant

作　　者：闫水保[1] 赵述胜 YAN Shui-bao;ZHAO Shu-sheng(School of Mechanical and Power Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学机械与动力工程学院,郑州450001

出　　处：《汽轮机技术》2021年第5期346-348,共3页Turbine Technology

摘　　要：工质实际做功能力(与汽轮机轴功等效)是热力系统状态的函数,在数学上是全微分。根据工质实际做功能力的全微分特征,提出了描述热力系统特征量的构造性定义方法。利用多元函数微积分和热力学第一定律,导出了一组热力系统泛化方程。提出了热力系统的泛型描述,分析了热力系统特征量的物理意义及相互作用关系。通过两个例子说明了泛化方程的普遍适用性。The actual work capacity of the working medium(equivalent to the shaft work of the steam turbine)is a function of the state of the thermal system and is an exact differential in mathematics.According to the exact differential characteristics of the actual work capacity of the working fluid,a constructive definition method is proposed to describe the characteristic quantity of the thermal system.A set of generalized equations of thermodynamic system are derived according to the calculus of multivariate functions and the first law of thermodynamics.The general description of thermodynamic system is proposed,and the physical meaning and interaction relationship of characteristic quantities of thermodynamic system are analyzed.The general applicability of the generalized equation is demonstrated by two examples.

关 键 词：热力系统 能级理论 泛化方程 电站 

分 类 号：TM621[电气工程—电力系统及自动化]