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- Title
Mathematical modeling of torque for single screw expanders.
- Authors
Wu, Yuting; Zhi, Ruiping; Wang, Wei; Shen, Lili; Zhang, Yeqiang; Lei, Biao; Wang, Jingfu; Ma, Chongfang
- Abstract
This paper presents a mathematical model of torque for Single screw expanders (SSEs). Instantaneous torque and torque ratio were analyzed and discussed. The periodic variation of instantaneous torque is the same for different inlet pressure levels. The torque ratio, with its value close to 1, is independent of the inlet pressure of SSE. An experimental system was established to measure the torque, power and shaft efficiency of the self-developed SSE prototype, and results were used to validate the model. Comparison shows that the difference between calculated and experimental torque values is small (6.58 N.m to 7.55 N.m). The calculated and experimental output power is similar, with a difference of 2.07 kW to 2.37 kW. Therefore, the proposed model can be used to estimate the torque and output power of SSEs.
- Subjects
MATHEMATICAL models; TORQUE; WASTE heat; HEAT recovery; RANKINE cycle
- Publication
Journal of Mechanical Science & Technology, 2017, Vol 31, Issue 1, p429
- ISSN
1738-494X
- Publication type
Article
- DOI
10.1007/s12206-016-1245-8