HFETR热功率测量系统误差分析

The Error Analysis of Thermal Power Measurement System of HFETR

本文针对HFETR热功率自动测量系统,详细介绍了该系统的测量方式、组成和原理,在某炉段满功率运行和连续冷却两种工况下对相应的热功率计算误差进行分析,得到最大相对误差值为0.59%,一个运行周期的积分功率最大相对误差值为0.66%。本文分析了测量仪表精度对热功率计算的影响。研究表明,HFETR的热功率测量系统精度符合设计要求,满足反应堆安全运行的需要。

This paper focused on the thermal power measurement system of HFETR,described the measurement method,composition,principle and error analysis of the system in detail.The error calculation was analyzed with two typical working conditions.The maximum relative error of thermal power and integral power was obtained respectively with 0.59%and 0.66%.The source of error and the influence of measuring instruments on thermal power error calculation were also analyzed.The results showed that the accuracy of HFETR thermal power measurement system meets the safety requirements for reactor operation.