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مکانیک::
هوای خنک کننده
Outer surface cooling is achieved by pushing cooling air out of holes in the blade walls.
Cooling air for the rotating blades is extracted from the compressor discharge, then cooled externally before delivery to the blades.
The avail- able cooling air temperature is 410C.
Cooling air impinges on the inner sur- face of the leading edge, flowing out in the form of a showerhead through four staggered
Improvement in the efficiency of a power plant can be realized by operating at higher tem- perature and with less cooling air.
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