Surging Limits of Multistage Axial-Flow Compressors.

Abstract

This paper describes the comparison between the experimental results and the analytical results for the surging limits of a multistage axial-flow compressor with a decompression suction chamber in front of the compressor. The analysis is based on the simplest two-element model for the compressor rotor flow passage, which is connected to the lumped parameter model extended to the decompression chamber. In this paper, it is shown that the surging limits are affected by the compressor discharge volume and the existence of the decompression system.