电厂热力系统能效分布矩阵方程式及其应用

提出了虚拟热力系统的概念，将纷繁复杂的实际热力系统用一个系统结构和热经济性指标不变，但参数发生变化的单一主系统——虚拟热力系统所替代。并在此基础上，构造了火电机组能效分布矩阵方程，该矩阵方程直接和热力系统结构一一对应，且有表征机组热经济性指标的矩阵元素，有效克服了目前新兴的热经济性矩阵分析方法需要联立其它方程才能求解系统最终热经济性指标的缺陷，具有通用性、精确度和易于程序化的特点。算例说明了方法的有效性。

Energy-efficiency Distribution Matrix Equation for a Power-plant Thermodynamic System and Its Applications

The conception of a virtual thermodynamic system is proposed, which makes it possible to replace the actual complicated thermodynamic system by a virtual one through the use of a single main system featuring an invariant system configuration and thermo-economic indexes but changing parameters. On this basis an energy-efficiency distribution matrix equation was derived, which can be directly correlated with the thermodynamic system configuration. Moreover, the matrix elements, which characterize power plant thermo-economic indexes, can effectively overcome the defect of other currently popular thermo-economic matrix analysis method. The latter requires other simultaneous equations for solving the final thermo-economic indexes of the system. The matrix equation under discussion has the merits of versatility, high precision and ease of undergoing programming treatment. Exemplary calculations have attested to the effectiveness of the proposed method.