Experimental research on the performance of high-pressure single screw compressor for portable natural gas liquefaction system

Lu, Yao; Zhi, Ruiping; Chen, Fengjuan; Lei, Biao; Yang, Guo; Wu, Yuting

doi:10.1016/j.applthermaleng.2023.121149

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…At present, the single-screw compressor (SSC), initially developed by Zimmern and Patel in the 1960s [5], has established itself as a pivotal technology across multiple domains, including heat pump systems [6], natural gas liquefaction [7], refrigeration industries [8,9], and the field of air compression, owing to its numerous distinct advantages, including a well-balanced stress distribution, uncomplicated design, minimal vibration, extended bearing life, and reduced noise levels [10,11]. Gate rotors can be manufactured from various materials [12].…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Research on Thermal Dynamic Characteristics of Single-Screw Compressor with a New Composite SLIDE Valve

Liu,

Zhi,

et al. 2024

Energies

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Based on the single-screw compressor (SSC) structure, a new type of composite slide valve (CSV) has been proposed and designed, featuring internal volume ratios of 2.8, 3.9, and 5.6 and operating under a partial load of 35%. The theoretical model describing the dynamic features and thermodynamic performance of the SSC with CSV has also been built. The pressure ratio of the experimental system can be adjusted from 3.3 to 7.8, and the experimental results demonstrate the CSV’s effective performance. The deviations between the calculated and measured results for volume ratio and input power are 3.33–9.08% and 0.32–8.03%, and the deviations for heating capacity and adiabatic efficiency range from 0.92–8.73% to 2.09–9.67%, respectively. The introduction of the CSV offers a novel approach to enhancing SSC efficiency. Both the theoretical and experimental findings lay a foundation for future optimization and design improvements in variable load and internal volumetric ratio single-screw compressors.

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Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Research on Thermal Dynamic Characteristics of Single-Screw Compressor with a New Composite SLIDE Valve

Liu,

Zhi,

et al. 2024

Energies

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Design optimisation of a screw compressor with a focus on rotor depth: A computational fluid dynamics approach

Aydın,

Engin,

Kovacevic

2025

International Journal of Refrigeration

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Fault mechanism and dynamic two-phase flow behavior of liquid slugging in reciprocating compressors

Li,

Guo,

Xiong

et al. 2024

Physics of Fluids

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Liquid slugging is a fatal fault for large process compressors, leading to transient overpressure, the deformation and fracture of vital pressure-bearing parts, and even gas leakage or explosion. In the study reported here, to reveal the mechanism of overpressure formation, numerical simulations were conducted by means of the volume-of-fluid method to explore the dynamic evolution characteristics of the two-phase flow pattern. Then, high-speed photography was applied to capture the dynamic changes of the liquid boundary in the modified cylinder from different views, thus realizing the validation of the numerical model. This study reveals the significant influence of increased rotational speed on fluid flow patterns, impeding liquid discharge and exacerbating overpressure events. Additionally, changes in pressure waveform and a distinctive waveform feature were identified as effective diagnostic indicators for detecting fluid slugging. Next, a nondestructive pressure monitoring reconstruction method based on measuring bolt strain was proposed. The strain-based pressure showed good agreement with the simulated results, thereby validating its effectiveness and feasibility as an early warning indicator for liquid slugging. This study offers new perspectives on the failure mechanism of liquid slugging in reciprocating compressors by delving into the behavior of two-phase flow, with the potential to enhance the theoretical foundation of compressor condition monitoring and fault diagnosis.

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Experimental research on the performance of high-pressure single screw compressor for portable natural gas liquefaction system

Cited by 3 publications

References 17 publications

Theoretical and Experimental Research on Thermal Dynamic Characteristics of Single-Screw Compressor with a New Composite SLIDE Valve

Theoretical and Experimental Research on Thermal Dynamic Characteristics of Single-Screw Compressor with a New Composite SLIDE Valve

Design optimisation of a screw compressor with a focus on rotor depth: A computational fluid dynamics approach

Fault mechanism and dynamic two-phase flow behavior of liquid slugging in reciprocating compressors

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