摘要
介绍了在国产２００ｔ／ｈ循环流化床锅炉建模与仿真工作中开发的复杂换热器系统动态特性的计算方法。该方法以近似解析解方法为基础，大大提高了运算速度，并解决了计算的不收敛问题。解耦算法的采用，令冷、热工质的平衡计算得以分离，从根本上避免了迭代计算。借助近似解析解方法和解耦算法，建立了一套通用的换热器动态特性模块化计算方法，从而为复杂换热器系统的动态特性计算提供了一个通用性强而且高效、简便的方法。
This paper deals with a method for calculating the dynamic characteristics of a complex heat exchanger system,which was developed during the modelling and simulation of a 220 t/h home made CFB boiler Based on an approximate analytical solution the said method significantly enhances the calculation speed and solves the problem of non convergence during calculations A decoupling method has been adopted,Which separates the balance calculation of cold and hot working mediums,making it possible to completely avoid iterative computations By combining the approximate analytical solutions and the decoupling calcu lation method established is a set of generalized method for calculating the dynamic behavior of heat exchanger systems,thereby providing a general purpose,high efficient and simple calculation method for complex heat exchangers
出处
《热能动力工程》
CAS
CSCD
北大核心
1997年第4期292-296,共5页
Journal of Engineering for Thermal Energy and Power
基金
国家攀登B计划资助项目
关键词
自然循环锅炉
换热器
动态特性
计算
仿真
natural circulation boiler,heat exchanger,dynamic characteristics,calculation
