GE燃气轮机的性能监控.pdf

Performance Performance Monitoring Monitoring For Gas Turbines For Gas Turbines Introduction Managing an asset requires numerous technologies designed to assess health. While most gas turbines in the field are fitted with some type of mechanical condition mon- itoring system (see companion article on page 48 in this issue of ORBIT), it is less common to see the inclusion of thermodynamic performance monitoring systems. However, performance monitoring is no less critical for those seeking to get the most from their machinery and processes. As will be seen, the financial benefits for those that employ performance monitoring are both consistent and compelling. This article discusses the reasons for monitoring performance on both gas turbines and the machines that they drive, the fundamentals of how a performance monitor- ing system works, and the types of information the system can provide. It presents the business case for monitoring performance along with several examples of how actual customers are obtaining value from their performance monitoring systems. It also describes the various performance monitoring solutions available from GE Energy, Josef Petek Patrick Hamilton, PE Product Line Leader, Performance Software Commercialization Manager, Performance Software GE Energy GE Energy josef.petek@ patrick.hamilton@ the applications that they target, and how they can be used individually or in conjunction with one another as part of a larger System 1 implementation. Gas Turbine Thermodynamics Gas turbines convert fuel energy into mechanical power or – by connecting to electric generators – electric power. The underlying thermodynamic cycle, known as the Brayton Cycle, involves the compression of a gaseous medium (typically air), the addition of fuel energy through combustion or heat exchange, and expansion of the hot, compressed gas th