Loading...

Simulation of startup operation of an industrial twin-shaft gas turbine based on geometry and control logic

Keshavarz Mohammadian, P ; Sharif University of Technology | 2019

437 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.energy.2019.07.030
  3. Publisher: Elsevier Ltd , 2019
  4. Abstract:
  5. In this paper, a transient model is developed to simulate the start-up operation of an industrial twin-shaft gas turbine based on real geometry and control logic. The components’ characteristic curves of the studied gas turbine were generated with the aid of CFD simulation tools and according to the real geometry of each component. The control logic of the studied gas turbine was simplified and coupled with the developed engine performance model. Also, the gas turbine actuators including variable inlet guide vanes, compressor bleed valves, and fuel valves were simulated so that their concurrent effects on the gas turbine transient behavior can be captured precisely. Moreover, the air-cooled compressor turbine was modeled with a new approach. The integrated model was set up and then tuned with the field data in the base load condition. Next, the start-up operation of the gas turbine from zero speed to the base load condition was simulated and validated with the field data. The results show good agreement between the model outputs and field data. Regarding the model outputs, it can be used as the base code for a more comprehensive investigation of flexibility, operability, and the life concerns of this type of gas turbines. © 2019
  6. Keywords:
  7. Air cooled turbine model ; Control logic ; Industrial gas turbine ; Start-up operation ; Twin-shaft ; Combustion ; Computer circuits ; Cooling systems ; Gas turbines ; Gases ; Geometry ; Industrial gas turbines ; Transient simulation ; Turbine modeling ; Twin shafts ; Turbine components ; Air temperature ; Control system ; Cooling ; Engine ; Flexure ; Operations technology ; Turbine
  8. Source: Energy ; Volume 183 , 2019 , Pages 1295-1313 ; 03605442 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0360544219313581