The first engine of a new family of high performance, industrial radial turbines is presented. The new single-shaft, 1500-kW site rated KG3 is built upon extensive experience from the field proven KG2 of the same nominal power. The KG3 is being developed both as a simple cycle and recuperated engine providing specific fuel consumptions in the range of 0.29–0.19 kg/kW-hr (0.47–0.32 lbs/hp-hr). This engine makes use of a high specific speed, high pressure ratio centrifugal compressor combined with a very high tip speed uncooled radial turbine to obtain optimized aerodynamic matching. Several novel design features are described.

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