高温气冷堆氦气透平直接循环的实际特性研究

清华大学高温气冷堆氦气透平直接循环系统(HTR-10GT)的特性研究已经进行了很多,但大多是针对理论上的布雷登循环作特性研究,没有考虑系统中其他实际因素,如工质泄漏、管道摩擦等。工程中,泄漏是不可避免的问题,泄漏及泄漏位置的不同都会引起系统中参数的变化。主要工作是研究HTR-10GT氦气透平直接循环系统在泄漏条件下的实际布雷登循环特性。研究目的就是在建立泄漏的物理和数学模型的基础上,研究泄漏对工质的热力参数及其效率的影响,对比在考虑有无泄漏时系统循环特性曲线的不同,找出提高系统效率的途径。

Actual characteristics study on HTR-10GT coupling with direct gas turbine cycle

Compared with a plant of steam turbine cycle,a HTGR plant with direct gas turbine cycle has a higher thermal efficiency.A lot of investigations on the characteristics of HTR-10GT,which is the reactor studying project of Tsinghua University,have been carried out,however,all of them are based on the theoretical Brayton Cycle which neglects many actual conditions,such as leakage,pressure loss and so on.For engineering practices,leakage is an unavoidable problem.The difference of the location and capacity of leakage will directly influence the working medium's thermoparameters and lead to fall of the cycle efficiency.The present study is focused on the performance of an actual Brayton cycle with practical conditions of leakage.The present study which based on building the physical and mathematical model of the leakage,aims to study the actual characteristics of the direct gas turbine circle.