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Analysis, modeling and simulations of an innovative sliding vane rotary compressor with a rotating cylinder

Gu, Huaduo LU ; Zhou, Xiaoyu ; Chen, Yaping ; Wu, Jiafeng ; Wu, Zan LU ; Jiang, Yunhui and Sundén, Bengt LU (2021) In Energy Conversion and Management 230.
Abstract

A novel sliding vane rotary compressor with a rotating cylinder is proposed in this paper. The sliding vane dynamics analysis reveals that, compared with the traditional compressor, the friction loss at the sliding vane tips and between rotor and cylinder can be reduced to 0.25% and 10.23%. To numerically investigate the internal flow mechanism, a reliable three-dimensional simulation method is developed via Fluent 2020R1. Three pressure ratios are considered. During transient calculations, all parameters begin to fluctuate periodically after the fourth round. Both temperature and pressure for a single chamber reach the maximum near the exhaust port. As the pressure ratio εp increases from 5, 10 to 15, the outlet temperature... (More)

A novel sliding vane rotary compressor with a rotating cylinder is proposed in this paper. The sliding vane dynamics analysis reveals that, compared with the traditional compressor, the friction loss at the sliding vane tips and between rotor and cylinder can be reduced to 0.25% and 10.23%. To numerically investigate the internal flow mechanism, a reliable three-dimensional simulation method is developed via Fluent 2020R1. Three pressure ratios are considered. During transient calculations, all parameters begin to fluctuate periodically after the fourth round. Both temperature and pressure for a single chamber reach the maximum near the exhaust port. As the pressure ratio εp increases from 5, 10 to 15, the outlet temperature increases from 496.9, 623.0 to 754.4 K and the mass flow rate decreases from 0.03089, 0.02946 to 0.02764 kg/s, the volumetric efficiency and isentropic compression efficiency decrease, with the maximum values of 97.14% and 90.33%. The gaps between the rotor and the cylinder and at the vane tips are 0.03 and 0.01 mm, but the leakage mass of the former is one order higher than that of the latter. The research can provide guidance for the design and practical application of sliding vane rotary compressors.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Compressor performance, Leakage flow, Low mechanical friction, Numerical simulation, Rotating cylinder, Sliding vane rotary compressor
in
Energy Conversion and Management
volume
230
article number
113822
publisher
Elsevier
external identifiers
  • scopus:85099186454
ISSN
0196-8904
DOI
10.1016/j.enconman.2020.113822
language
English
LU publication?
yes
id
df26a5bd-4d52-4421-aa46-f9cc8e81cbb3
date added to LUP
2021-01-25 07:57:13
date last changed
2021-03-31 02:06:53
@article{df26a5bd-4d52-4421-aa46-f9cc8e81cbb3,
  abstract     = {<p>A novel sliding vane rotary compressor with a rotating cylinder is proposed in this paper. The sliding vane dynamics analysis reveals that, compared with the traditional compressor, the friction loss at the sliding vane tips and between rotor and cylinder can be reduced to 0.25% and 10.23%. To numerically investigate the internal flow mechanism, a reliable three-dimensional simulation method is developed via Fluent 2020R1. Three pressure ratios are considered. During transient calculations, all parameters begin to fluctuate periodically after the fourth round. Both temperature and pressure for a single chamber reach the maximum near the exhaust port. As the pressure ratio ε<sub>p</sub> increases from 5, 10 to 15, the outlet temperature increases from 496.9, 623.0 to 754.4 K and the mass flow rate decreases from 0.03089, 0.02946 to 0.02764 kg/s, the volumetric efficiency and isentropic compression efficiency decrease, with the maximum values of 97.14% and 90.33%. The gaps between the rotor and the cylinder and at the vane tips are 0.03 and 0.01 mm, but the leakage mass of the former is one order higher than that of the latter. The research can provide guidance for the design and practical application of sliding vane rotary compressors.</p>},
  author       = {Gu, Huaduo and Zhou, Xiaoyu and Chen, Yaping and Wu, Jiafeng and Wu, Zan and Jiang, Yunhui and Sundén, Bengt},
  issn         = {0196-8904},
  language     = {eng},
  publisher    = {Elsevier},
  series       = {Energy Conversion and Management},
  title        = {Analysis, modeling and simulations of an innovative sliding vane rotary compressor with a rotating cylinder},
  url          = {http://dx.doi.org/10.1016/j.enconman.2020.113822},
  doi          = {10.1016/j.enconman.2020.113822},
  volume       = {230},
  year         = {2021},
}