核蒸汽轮机再热器的动态数学模型研究

核蒸汽轮机现热器的再热源为饱和蒸汽、湿蒸汽,在管内流动过程中,两相流流型、换热系数均不断变化,以往 再热器动态数学模型未考虑这些变化。本文的研究充分地考虑了这些影响,提出了再热器分布参数建模方法,建立的模型更能反映物理实质。

Dynamic Model Research for Reheater in Nuclear Steam Turbine

The heat resource in reheater is saturated steam or wet steam, While they flow inside tubes, the two-phase flow patterns and heat transfer coefficient of steam change along tubes. The usual dynamic simulation model for reheater has not considered the effect of the above factor. This paper presents a distributed parameter approach for deriving the dynamic model for reheater, in which the effect has been taken into account sufficiently.