基于热力学第二定律的燃气轮机故障性能研究

本文利用热力学第二定律的功势转化指标标之一的推力功势转化性能指标。对燃气轮机在故障状态下的推力功势性能进行分析。对比用传统的部件效率来衡量的故障性能变化,分析并量化了几种典型故障下功势的转化性能的变化程度。结果表明：推力功势转化性能指标从能源转化为有用功的角度更好地衡量燃气轮机的故障性能,为进一步研究各种故障下燃气轮机的能源转化性能奠定了基础。

A research on the gas turbine performance in the condition of fault based on the second law of thermodynamics

This paper analyzed the gas turbine performance in the condition of fault by using the thrust work potential transferfunction, as a fig- ure of merit of the work potential which based on the second law of thermodynamics. Contrasted against the delta of the component efficiencies, the delta of the thrust work potential transfer function in some typical fault is derived. The result was suggested that the thrust work potential transfer function can express the gas turbine performance wonderfully in the point of view of the transfer the stored energy in fuel into useful thrust work ,This is the groundwork for the further study the capability of the gas turbine which in the condition of all kinds of faults.