Thermal analysis of a turbine stack

E. Aulisa, A. Barletta, M. Gallipoli, A. Terenzi, E. Zanchini

Research output: Contribution to journalConference articlepeer-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 arid 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)301-310
Number of pages10
JournalComputational Studies
Volume5
StatePublished - 2004
EventEighth International Conference on Advanced Computational Methods in Heat Transfer, HEAT TRANSFER VIII - Lisbon, Portugal
Duration: Mar 24 2004Mar 25 2004

Keywords

  • Computational fluid dynamics
  • Thermal control
  • Turbine stack

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