摘要
为准确计算高温气冷堆(HTGR)氦气透平循环装置HTR-10GT的回热器芯部在旁路阀调节时的响应特性,提出了适用于回热器的、基于双曲型守恒律方程和Warming-beam线性化方法的分布式求解方法。该方法考虑了工质热物性随温度的连续变化。对其他换热部件、叶轮机械及空腔的特性进行了简化建模,得出了旁路阀调节时回热器进口流量和温度的变化,在此基础上比较和分析了旁路阀在不同位置时回热器芯部所受的温度冲击。计算结果表明:把高压压气机出口到回热器高温侧入口和出口的旁路阀同时打开、在保持调节效果不变的前提下,回热器芯部受到的温度冲击得以减轻。
The HTR-10GT system is a helium turbine system coupled with a high temperature gas cooled reactor （HTGR）. The dynamic response of its recuperator core in the bypass valve regulator was modeled using a distributed calculation method based on the hyperbolic conservation law and the Warming-Beam linearization method. The temperature dependencies of the thermal physical properties of helium are taken into account. The other heat exchangers, turbocompressors and helium-containing spaces are also modeled to obtain the inlet mass flows and temperatures on both sides of the recuperator. The thermal shocks in the recuperator core are analyzed for bypass valves open at different locations. The results show that the thermal shock is minimized while maintaining the regulating effects if the bypass valves from the high pressure compressor outlet to the recuperator hot side inlet and outlet are opened simultaneously.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2015年第2期208-213,共6页
Journal of Tsinghua University(Science and Technology)
基金
国家科技重大专项资助项目(2011ZX06901-019)
关键词
高温气冷堆(HTGR)
氦气透平
旁路阀
回热器
温度冲击
high temperature gas turbine
bypass valve
cooled reactor （HTGR）
helium recuperator
thermal shock
