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3D printed turbine-like inserts as an effective pressure pulsation dampers in positive-displacement compressors manifolds.

Number: 1219

Author(s) : MLYNARCZYK P., BREWCZYNSKI D., KRAJEWSKA-SPIEWAK J., LEMPA P., BLADEK J., CHMIELARCZYK K.

Summary

Pressure pulsations in positive-displacement compressors manifolds are well known phenomenon to industry and science. However, in the field of developing methods for damping pressure pulsations, there is still no universal solution that would be simple, cheap and did not significantly affect the compressed gas system. One of the proposed solution, which has been developed for several years, is the installation of shaped inserts in the compressor discharge pipeline for pressure pulsation damping. It has already been shown that such inserts suppress pressure pulsations at wide range of frequencies. It is very important especially in refrigeration installations with continuous compressor operation. The significant disadvantage of the narrowing of the pipeline is pressure drop, which increases the demand for compression unit power. Thanks to the 3D printing techniques, it is possible to design very complex shapes that will allow for the damping of pressure pulsations to a sufficient extent and at the same time will not have a significant impact on the compression power. The conducted experimental studies for two different turbine-like shapes show that it is possible to influence pressure pulsations and at the same time not to generate significant losses in the flow. As part of the work, the influence of two different shapes was compared. Fixed nozzles and nozzles with 1 degree of freedom of movement (rotation) were compared. The tests were carried out on two test stands. A reciprocating compressor was used for lower frequencies investigations and a screw compressor stand was used for higher pressure pulsation frequencies.

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  • Original title: 3D printed turbine-like inserts as an effective pressure pulsation dampers in positive-displacement compressors manifolds.
  • Record ID : 30030288
  • Languages: English
  • Subject: Technology
  • Source: 2022 Purdue Conferences. 26th International Compressor Engineering Conference at Purdue.
  • Publication date: 2022/07/15

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