单压过热蒸汽余热锅炉变工况解析解

The practical off-design analytical solution of single-pressure and generating steamgas HRSG was given in this paper, with gas turbine outlet temperature and flow mass as independent variables. It not only can be used to check and develop the existing numerical solutions and programs, but also can be used to achieve the analytical solution of gas turbine total energy system(TES) by combining with numerical solutions of other components of TES, so as to study and analyze the off-design general characteristics of TES.

Dynamic simulation of hydrodynamic model of drum level wave action and sloshing

In order to build the model of the drum level wave action and sloshing, based on the method of modularization modeling, the hydrodynamic model of drum level wave action and sloshing was developed, and dynamic simulation researches were carried out based on the model. The results indicate that both drum level and drum length have functional relations with period of drum level wave action and sloshing. When the drum level decreases or drum length increases, the period of drum level wave action and sloshing increases, density of liquid and number of sub-module division have little influence on the period of drum level wave action and sloshing. The model was validated by the analytical solution theory of liquid’s wave action and sloshing in cuboid container, and the 3D graphics of drum level wave action and sloshing was also obtained. The model can dynamically reflect the rules of wave action and sloshing of water in the container exactly.

基于水位晃荡的汽包水位水动力学模型的开发与动态仿真研究

基于模块化建模方法开发了汽包水位晃荡的水动力学仿真模型,研究了汽包水位晃荡周期与汽包水位之间的函数关系,汽包水位晃荡周期与汽包尺寸之间的函数关系,以及液体密度和模块划分数目对汽包水位晃荡与波动的影响等,并采用容器里液体晃荡频率解析解理论对模型的正确性进行验证,结果表明:仿真模型可以动态地反映容器里液体的固有晃荡规律,为建立完整的汽包水位晃荡模型与开发先进的汽包水位控制策略奠定了基础。