核电站热力系统中加热器的优化设计及其对系统热效率的影响

Optimization of Heater Design in the Thermosystem of Nuclear Power Plant and effect on the System thermal efficiency

加热器是核电站热力系统中的一个重要部件,它对提高系统热效率具有重要作用.本文建立了加热器的优化数学模型,求出其最优端差,分析了系统热效率与系统优化及端差优化的各种关系,并阐叨了由于端差的优化使系统热效率有明显的提高.

The heater is one of important components in the thermosystem of Nuclear Power Plant ,and it has critical part to play for raising thermal efficiency of this system.This paper es- tablished optimum mathematical model of the heater,evaluated optimum terminal temperature difference as well as analysised various relationships between the system thermal efficiency and system optimization or optimization of terminal difference.The results indicate that the system thermal efficiency can be increased substantially by optimizing terminal difference.