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The purpose of this study is to suppress the fluctuations of surge by a simple passive control method.A bouncing ball system with different weight of the balls was tested.As a result,the bouncing ball system suppressed mild surge without the deterioration of the performance characteristics,and moved the initiation point of surge toward the lower flow rate when the steel ball of 15mm outer diameter was used.The present system was effective to suppress the surge and to widen the stable operating range of a centrifugal compressor when the ball was chosen appropriately.
The purpose of this study is to suppress the fluctuations of surge by a simple passive control method. A bouncing ball system with different weight of the balls was tested. As a result, the bouncing ball system suppressed mild surge without the deterioration of the performance characteristics , and moved the initiation point of surge toward the lower flow rate when the steel ball of 15mm outer diameter was used. the present system was effective to suppress the surge and to widen the stable operating range of a centrifugal compressor when the ball is controlled .