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Transient analysis of startup characteristics of a water-lubricated twin-screw air compressor system.

Number: 1560

Author(s) : LIU Y., WANG C., LIAO X., XING Z.

Summary

Water-lubricated twin-screw compressors have attracted wide attention because they can supply oil-free compressed air at an acceptable cost. However, the injection of water as auxiliary fluid for lubrication could result in different transient characteristics of the compressor and system during the starting period due to the poor lubricity of water. For the purpose of clarifying the startup characteristics and thus increasing the performance and reliability of the water-lubricated twin-screw air compressor, the simulation and corresponding experiments are implemented on a water-lubricated screw air compressor system to study variations of water injection parameters and pressure distribution during the startup condition. The thermodynamic model of the whole system including compressor, water cooler, water-gas separator and water pump is established using MATLAB/Simulink and is verified by the experimental results with enough accuracy. Based on the verified dynamic model, a control method is proposed to ensure that the air compressor system runs reliably during the startup stage. The energy-saving potential and reliability of the startup control method are evaluated experimentally, which demonstrated its feasibility used in the water-lubricated twin-screw air compressor system.

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Pages: 10 p.

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  • Original title: Transient analysis of startup characteristics of a water-lubricated twin-screw air compressor system.
  • Record ID : 30030404
  • Languages: English
  • Subject: Technology
  • Source: 2022 Purdue Conferences. 26th International Compressor Engineering Conference at Purdue.
  • Publication date: 2022/07/15
  • Document available for consultation in the library of the IIR headquarters only.

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