IGTC-7 UNSTEADY TEMPERATURE ANALYSIS OF AIR-COOLED TURBINE VANES(Session A-2 Heat Transfer II (Unsteady))

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概要

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• The unsteady hot cascade tests were performed for the four cases with two kinds of full scale turbine nozzle vane models, FJR type and NAL type, with and without thermal barrier coating (TBC), respectively. Time constants of vane metal temperatures during transient conditions by igniting or cutting off fuel were studied, in addition two dimensional transient temperature distributions on suction surfaces were measured with an infrared thermal camera. The experimental ranges are as follows ; Re=2×10^5〜2×10^6, PTI=0.3〜0.9MPa and TIT=340〜1080K. Spatial variations of time constants were fairly uniform except for the NAL vane with TBC. TBC generally makes a time constant slow and it exerts influences even over the range where it is not applied. The characteristics of time constant and heat transfer were extended to the range of Re=2×10^6.

• 公益社団法人日本ガスタービン学会の論文

著者

• Yoshida T.

  National Aerospace Laboratory

• Mimura F.

  National Aerospace Laboratory

• Kumagai T

  National Aerospace Laboratory

• Kumagai T.

  National Aerospace Laboratory

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• IGTC-7 UNSTEADY TEMPERATURE ANALYSIS OF AIR-COOLED TURBINE VANES
• IGTC-7 UNSTEADY TEMPERATURE ANALYSIS OF AIR-COOLED TURBINE VANES(Session A-2 Heat Transfer II (Unsteady))

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