Affiliation:
1. Dipartimento di Ingegneria Meccanica e Gestionale-Sezione di Macchine ed Energetica, Politecnico di Bari, Via Re David 200, 70100 Bari, Italy
Abstract
A high-fidelity real-time simulation code based on a lumped, nonlinear representation of gas turbine components is presented. The code is a general-purpose simulation software environment useful for setting up and testing control equipments. The mathematical model and the numerical procedure are specially developed in order to efficiently solve the set of algebraic and ordinary differential equations that describe the dynamic behavior of gas turbine engines. For high-fidelity purposes, the mathematical model takes into account the actual composition of the working gases and the variation of the specific heats with the temperature, including a stage-by-stage model of the air-cooled expansion. The paper presents the model and the adopted solver procedure. The code, developed in Matlab-Simulink using an object-oriented approach, is flexible and can be easily adapted to any kind of plant configuration. Simulation tests of the transients after load rejection have been carried out for a single-shaft heavy-duty gas turbine and a double-shaft aero-derivative industrial engine. Time plots of the main variables that describe the gas turbine dynamic behavior are shown and the results regarding the computational time per time step are discussed.
Subject
Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering
Reference22 articles.
1. SAE 1996–05, “Gas Turbine Engine Real Time Performance Model Presentation for Digital Computers,” Aerospace Recommended Practice ARP4148 Rev. A.
2. Sequential Linearization as an Approach to Real Time Marine Gas Turbine Simulation;Smith;J. Eng. Gas Turbines Power
3. Visser, P. J., Broomhead, M. J., and van der Vorst, J., 2001, “TERTS, A Generic Real-Time Gas Turbine Simulation Environment,” ASME Paper No. 2001-GT-0446.
4. Stamatis, A., Mathioudakis, K., Ruiz, J., and Curnock, B., 2001, “Real Time Engine Model Implementation for Adaptive Control & Performance Monitoring of Large Civil Turbofans,” ASME Paper No. 2001-GT-0362.
Cited by
128 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献