Thermo-structural analysis of cracks on gas turbine vane segment having multiple airfoils

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• 作者：Heeyoon Chung^a ; Ho-Seong Sohn^a ; Jun Su Park^b ; Kyung Min Kim^c ; Hyung Hee Cho^a ; ^{hhcho@yonsei.ac.kr}
• 关键词：Gas turbine ; Nozzle vane segment ; Thermo-structural analysis ; Conjugate heat transfer ; Thermal stress
• 刊名：Energy
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：118
• 期：Complete
• 页码：1275-1285
• 全文大小：3538 K
• 卷排序：118

文摘

Cracking mechanism on a turbine vane were investigated after an operating period. Thermal deformation and stress were evaluated under actual operating conditions. Predicted stress concentration coincided with the actual cracks on the vane. General predictions of cracks on a vane having multiple airfoils are provided.