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

Research output: Contribution to journalArticle

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 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.

Details

Authors
Organisations
External organisations
  • Southeast University, Nanjing
  • China Overseas Land & Investment LTD
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Energy Engineering

Keywords

  • Compressor performance, Leakage flow, Low mechanical friction, Numerical simulation, Rotating cylinder, Sliding vane rotary compressor
Original languageEnglish
Article number113822
JournalEnergy Conversion and Management
Volume230
Publication statusPublished - 2021
Publication categoryResearch
Peer-reviewedYes