| 摘要 |
A structural part of a gas turbine plant is cooled by branching off a partial mass air stream, after being compressed by a compressor of the gas turbine plant, from a main mass air stream. The cooling partial mass air stream is ducted in a closed duct to the structural part to be cooled. At the same time, the partial mass air stream undergoes, independently of the main mass air stream, additional compression which is carried out by utilizing the rotational energy of a turbomachine shaft of the gas turbine plant. The novel gas turbine plant therefore is provided with a secondary compressor. The invention is suitable particularly for use in stationary gas turbine plants.
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