摘要
基于各级加热器的热平衡方程,通过严密的数学推导,提出了基于矩阵的压水堆核电机组二回路热力系统的定功率方程式。对该矩阵的填写规则进行了详细阐述,指出了各矩阵的物理意义,该方程式全面考虑了二回路热力系统的结构特点以及辅助汽水系统,在定功率条件下,可以一次性求出汽耗量和各级抽汽量,通用性强,在应用时、具有简洁、准确和快速的特点。通过对某900MW机组进行算例分析,验证了该方程的准确性。
On the basis of the thermal balance equations for heaters at various stages,through a strict mathematical deduction,presented was a constant power equation for the second loop thermodynamic system of a pressurized water reactor-based nuclear power plant based on matrixes.The rules for filling out the matrixes were expounded in detail and the physical meanings of various matrixes,pinpointed.The equation in question considers in a comprehensive way the structural features of the second loop thermodynamic system and auxiliary steam and water systems.Under the condition of a constant power output,the equation can be used to obtain at the first attempt the steam consumption rate and the amounts of steam bled at various stages,demonstrating its strong versatility.Its applications feature a simple,accurate and quick process.The authors have verified the accuracy of the equation through the analysis of a 900 MW power plant calculation case.
出处
《热能动力工程》
CAS
CSCD
北大核心
2009年第3期391-394,共4页
Journal of Engineering for Thermal Energy and Power
关键词
核电机组
热力系统
二回路
矩阵法
定功率
thermal power engineering,thermodynamic system,second loop,matrix method,constant power
