CFD analysis and overheating control of a turbine

Eugenio Aulisa, Antonio Barletta, Massimo Gallipoli, Alessandro Terenzi, Enzo Zanchini

Research output: Contribution to journalArticlepeer-review

Abstract

The thermal analysis of a turbine stack discharging exhaust gases to the atmosphere is presented. The examined turbine stack belongs to a gas lift plant for oil extraction located in the Gulf area. The analysis has been performed because an overheating of the anchor flange/bolts and of the concrete foundation occurred and caused small cracks in the upper layer of the foundation. A qualitative thermal analysis of the stack has pointed out that the main cause of the overheating was the thermal radiation in the air-filled region underneath the stack bottom plate. Detailed calculations performed by using a CFD code (Fluent ver. 6.0.12), cross-checked with measurements taken from site, have shown that a significant reduction of the heat flux to the foundation could be obtained by filling the above mentioned air region with an insulating material. The benefits of this solution are prevailing over those achievable with the installation of external fins on the stack shell.

Original languageEnglish
Pages (from-to)1119-1124
Number of pages6
JournalInternational Journal of Thermal Sciences
Volume43
Issue number11
DOIs
StatePublished - Nov 2004

Keywords

  • Computational fluid dynamics
  • Thermal control
  • Turbine stack

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