Research on Performance of Variable-Lead Rotor Twin Screw Compressor

Huagen Wu, Jiankang Liu, Yuqi Shen, Mengtao Liang and Beiyu Zhang
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Huagen Wu: Institute of Compressors, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Jiankang Liu: Institute of Compressors, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Yuqi Shen: Institute of Compressors, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Mengtao Liang: Institute of Compressors, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Beiyu Zhang: Institute of Compressors, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China

Energies, 2021, vol. 14, issue 21, 1-16

Abstract: Twin-screw compressors are widely used in aerodynamics, refrigeration and other fields. The screw rotors are the core component of the screw compressor and affect the performance of the compressor. This paper focuses on variable-lead rotors. A thermal process simulation model considering leakage is established to calculate the efficiency of the compressor. Different lead change methods are compared by evaluating the contact line, exhaust port and simulation results. The results show that the compressor obtains better performance when the lead decreases rapidly on the discharge side. Furthermore, the effects of the wrap angle and internal volume ratio on variable-lead rotors are studied. The work provides a reference for the design of the screw compressor rotor.

Keywords: screw compressor; rotors; variable lead; design engineering (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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