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Loop thermosiphon as a feasible cooling method for the stators of gas turbine.

Author(s) : LI T., JIANG Y., LI Z., et al.

Type of article: Article

Summary

A stator sample of a gas turbine was developed with loop thermosiphon structure to seek a feasible cooling method for high-temperature stators of gas turbine. The sample was comprised by 8 hollow vanes and a cooling tube. Its inner space was filled by sodium-potassium alloy (Na-K) to become a loop thermosiphon stator sample (LTSS). The thermosiphon structure could transfer the heat from the hot surfaces of the vanes heated by the high-temperature gas mainstream to its own cooling tube, which would be blown by the cold air in the external duct of a gas turbine. Heatproof ability of the LTSS was experimented at 1230°C in a hot wind tunnel to judge whether loop thermosiphon is a feasible cooling method. Results indicated the average wall temperature of 8 vanes was about 340°C lower than 1230°C.

Details

  • Original title: Loop thermosiphon as a feasible cooling method for the stators of gas turbine.
  • Record ID : 30019858
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 109, part A
  • Publication date: 2016/10/25
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2016.08.087

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