熔盐堆间冷回热式氦气轮机热力循环效率分析  

Thermodynamic Cycle Efficiency Analysis of MSR Intercooled Recuperated Helium Gas Turbine

作　　者：卢恒 邹杨 郭燕雯 朱贵凤 赵恒 戴叶 LU Heng;ZOU Yang;GUO Yan-wen;ZHU Gui-feng;ZHAO Heng;DAI Ye(Shanghai Institute of Applied Physics,Shanghai 201800,China)

机构地区：[1]上海应用物理研究所,上海201800

出　　处：《汽轮机技术》2022年第2期81-86,共6页Turbine Technology

基　　金：中国科学院战略性先导科技专项项目(No.XDA02010000);中国科学院前沿科学重点研究项目(No.QYZDY-SSW-JSC016)资助。

摘　　要：设计基于熔盐堆的间冷回热式氦气轮机循环系统并建立数学模型,介绍以布雷顿循环为原理的系统运行流程。使用控制变量法分析了关键因素:压缩机/透平效率、回热器性能、温比、低压压缩机入口压力对系统总效率的影响。分析结果表明:相较于压缩机效率,同幅度的透平效率提升使系统总效率值更高;换热端差和流动阻力都为系统的循环带来了一定程度的负担;存在使系统效率值最大的温比;计算发现,在特定情况下,系统最高温度越高,系统效率越高。总结、量化了这些因素对系统效率的影响。This paper establishes a mathematical model for the MSR intercooled recuperated helium gas turbine cycle system combined Molten Salt Reactor(MSR),and introduces which operating process based on the Brayton Cycle.Chooses four key factors affecting the system efficiency:compressor/turbine efficiency,regenerator performance,temperature ratio,pressure of L-P compressor inlet pressure,the control variable method is used to analyze their influence on the cycle efficiency of the system.The analysis results show that:compared to the improvement of compressor efficiency,the improvement of turbine efficiency makes the cycle efficiency higher;the regenerator heat transfer temperature difference between two ends and flow resistance both bring a burden to the cycle efficiency of the system;and there exists a temperature ratio that maximizes the efficiency of the system.In the calculation,it is found that the higher the system maximum temperature,the higher the system efficiency under special circumstances.This paper quantified the influence of these factors on the system cycle efficiency.

关 键 词：熔盐堆 布雷顿循环 间冷 回热 氦气轮机 

分 类 号：TK123[动力工程及工程热物理—工程热物理]