摘要
针对一个复杂的压水堆核电机组二回路系统,基于热平衡原理推导出其汽水分布通用矩阵模型。通过分析矩阵各元素的意义并引入"虚拟放热量"的概念,总结出矩阵元素的填写规则。此规则可推广到各种复杂的回热系统,只要已知回热系统的结构,即可根据此规则逐项填写矩阵方程。通过两个回热系统(压水堆核电与火电机组)的实例计算,验证了所建模型的正确性,并发现运用此规则写出的火电机组回热系统的汽水分布方程即是熟悉的三角结构矩阵,进一步验证了此规则的正确性。该矩阵方程原理简单,容易构造,为回热系统的热经济性分析提供了又一简单而实用的工具。
In view of the complex secondary - circuit system of the pressurized - water reactor （PWR） nuclear power units, a general matrix model is developed based on the principle of heat balance. By analyzing the meaning of matrix elements and introducting of the concept of the ＂virtual heat release＂ ,it can summarize the rule for filling out the matrix. The rule is suitable for various kinds of regenerative systems. If knowing the structure of the regenerative system, the matrix equation can be filled out one by one in accordance with the rule. It has been proved to be correct by the two examples of checking caculations（ PWRnuclear and coal -fired power units）. Furthermore, it has been found that the steam-water distribution matrix for regenerative system of coal - fired power units filled out by the rules is namely the triangular matrix. The principle of the general matrix model is simple and it is easy to construct and provides another simple and useful tool for the economic analysis of regenerative system.
出处
《汽轮机技术》
北大核心
2010年第5期325-328,共4页
Turbine Technology
关键词
压水堆核电
二回路
汽水分布
矩阵方程
火电机组
the PWR nuclear power units
secondary - cuicuit
steam - water distribution
matrix equation
the coal-fired power units
