| 摘要 |
A gas-turbine combustion chamber wall for a gas-turbine has a combustion chamber wall 9 , on the inner side of which several tiles 10 are arranged, with an interspace 14 being formed between the tiles 10 and the combustion chamber wall 9 , into which cooling air is introduced via impingement-cooling holes 8 provided in the combustion chamber wall 9 and from which the cooling air flows into the combustion chamber via effusion-cooling holes 11, 23 provided in the tile 10 . The tile 10 includes a surface structure 19, 22 on the side facing the combustion chamber wall 9 . The area of the impingement-cooling holes 8 and the area of the effusion-cooling holes 11 do not coincide.
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