Twin-screw compressors are often used for generating compressed fluids useful for various industrial applications, thereby necessitating the need for evolving energy efficient designs. In the past few decades, several experimental studies were conducted to understand the phenomenon inside the twin-screw compressor, thereby leading to performance improvement and design optimization. The present study summarizes the various experimental investigations on screw compressors which include analysis related to various parameters such as leakages, pulsations, noise, liquid injection, capacity control, pressure losses, optimization of rotor, indicator diagrams, etc. In order to improve the understanding of thermo-fluid-solid interaction phenomenon in twin-screw compressor, further investigations using visualization techniques such as LDV/PIV are suggested. As the leakages within the screw compressor are complex phenomenon, it is suggested to explore simplified experimental and numerical studies by simulating the leakages using equivalent nozzles and developing appropriate leakage models.

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对双螺杆压缩机相关实验研究的批判性回顾

双螺杆压缩机通常用于产生可用于各种工业应用的压缩流体，因此需要不断发展节能设计。在过去的几十年中，进行了多项实验研究以了解双螺杆压缩机内部的现象，从而导致性能改进和设计优化。本研究总结了对螺杆压缩机的各种实验研究，包括与泄漏、脉动、噪声、液体喷射、容量控制、压力损失、转子优化、指标图等各种参数相关的分析。关于双螺杆压缩机中的热-流体-固体相互作用现象，建议使用 LDV/PIV 等可视化技术进行进一步研究。