Mathematical modeling of torque for single screw expanders

Wu, Yuting; Zhi, Ruiping; Wang, Wei; Song, Lili; Zhang, Yeqiang; Ma, Chongfang

doi:10.1007/s12206-016-1245-8

Cited by 7 publications

(2 citation statements)

References 23 publications

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“…[23][24][25] The measurement of CAD model and the polygon description of complex geometries have been also adopted, and the error between them is less than 4%. 2,[26][27][28][29] Nevertheless, many researchers point that the quickwearing star wheel teeth is the major restriction to the applications of the SSC, which cannot yet be solved by the optimization of basic parameters. Therefore, the study on profile and processing technology is a research focus in engineering and academia for a long time, which is the main direction to solve the problem.…”

Section: Optimization Of Geometric Parametersmentioning

confidence: 99%

Development of single screw compressor technologies and their tendency

Zhang

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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Single screw compressor (SSC), a strong competitor of the twin screw compressor, is regarded as an excellent gas compressor because of symmetrical structure and balanced gas forces on the screw rotor. However, the market for the SSC is tiny compared with that for the twin screw compressor because of the serious abrasion of star-wheel teeth. In recent years, this problem has been solved due to the development of the new profiles of meshing pairs, and the SSC has attracted more attention due to its high application potential for low-temperature heat pump, mechanical vapor recompression, and two-phase expansion. Nevertheless, there are still many technical problems remained to be solved for applying SSC to these fields urgently. In this paper, a comprehensive review on the progress and development of SSC technologies is presented. The review first combs the current situation of SSC products. Besides, the design and processing of meshing pairs are clarified and analyzed. Moreover, the working process of SSC and its performance in new applications are discussed in detail. Finally, the further research direction of the SSC is also discussed, which will be beneficial for designing high-efficiency SSC.

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Section: Optimization Of Geometric Parametersmentioning

confidence: 99%

Development of single screw compressor technologies and their tendency

Zhang

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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show abstract

“…An indicated efficiency of 65% was measured. Wu et al (2017) proposed a simplified model to calculate the torque characteristics of a single screw expander. It was found that the torque ratio does not depend on the initial pressure levels.…”

Section: Screw Expandersmentioning

confidence: 99%