Proceedings of the 2nd International Conference on Industrial and Technology and Information Design, ICITID 2021, 30 August 2021, Yogyakarta, Indonesia

Research Article

Numerical Investigation of a Liquid Gas Ejector

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  • @INPROCEEDINGS{10.4108/eai.30-8-2021.2311534,
        author={Daru  Sugati and Marwan  Effendy and Sugiarto  Sugiarto},
        title={Numerical Investigation of a Liquid Gas Ejector},
        proceedings={Proceedings of the 2nd International Conference on Industrial and Technology and Information Design, ICITID 2021, 30 August 2021, Yogyakarta, Indonesia},
        publisher={EAI},
        proceedings_a={ICITID},
        year={2021},
        month={10},
        keywords={numerical investigation liquid gas ejector},
        doi={10.4108/eai.30-8-2021.2311534}
    }
    
  • Daru Sugati
    Marwan Effendy
    Sugiarto Sugiarto
    Year: 2021
    Numerical Investigation of a Liquid Gas Ejector
    ICITID
    EAI
    DOI: 10.4108/eai.30-8-2021.2311534
Daru Sugati1,*, Marwan Effendy2, Sugiarto Sugiarto3
  • 1: Mechanical Engineering Department, Institut Teknologi Nasional Yogyakarta, Indonesia
  • 2: Mechanical Engineering Department, Universitas Muhammadiyah Surakarta, Indonesia
  • 3: Study Program of Electrical Engineering, Institut Teknologi Nasional Yogyakarta, Indonesia
*Contact email: daru.tm@itny.ac.id

Abstract

This paper describes a numerical study of liquid jet gas ejector in a vacuum pump. An experimental model of liquid-gas ejector was used in this simulation study. The realisable 𝑘 – 𝜀 turbulence model was utilized in RANS simulation. Investigations were realised at various liquid velocities from 2 – 10 m/s and remained constant gas velocity at 0.02 m/s. The CFD validated pressure is in good agreement with the available experimental data. The composition of gas and liquid is to be sensitive against the mixing process of liquid-gas in the throat section which cause the specific distribution of both pressure and velocity along the channel.