EXPERIMENTAL PERFORMANCE OF A 16.10-CENTIMETER-TIP-DIAMETER SWEPTBACK CENTRIFUGAL COMPRESSOR DESIGNED FOR A 6:1 PRESSURE RATIO

摘要

Tests of a backswept impeller with design mass flow rate of 1. 033 kg/sec were conducted with both a vaned diffuser and a vaneless diffuser to establish stage and impeller character¬istics. Design stage pressure ratio of 5. 9:1 was attained at a flow slightly lower than the design value. Flow range at design speed was 6 percent of choking flow. Impeller axial tip clearance at design speed was varied to determine effect on stage and impeller performance.