单压力热回收蒸汽发生器的数学建模

M. Plis, H. Rusinowski
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引用次数: 6

摘要

本文介绍了单压力热回收蒸汽发生器的仿真方法、算法和仿真结果。所分析的废锅炉包括省煤器、蒸发器、一次、二次过热器和减温器。利用质能平衡,建立了余热sg的数学模型。热回收蒸汽发生器传热分析模型的建立是一个非常复杂的过程。这种方法需要对构造和表面积几何尺寸有详细的了解。因此,为了简化传热过程的描述,采用了经验方程。用迭代法求解了一个已开发的方程组。
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Mathematical modelling of single pressure heat recovery steam generator
The paper presents the methodology, algorithm and results of simulations of single pressure heat recovery steam generator. The analyzed waste boiler contains economizer, evaporator, primary, secondary superheater and desuperheater. Using mass and energy balances, the mathematical model of HRSG is worked out. Development of analytical model of heat transfer in heat recovery steam generator is very complex. This approach requires a detail knowledge about construction and geometric dimensions of surface areas. Hence, to simplify descriptions of heat transfer process, an empirical equations were used. A developed system of equations was solved with the help of iterative procedure.
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