Design and Simulation of Air Compressor Impeller for Fuel Cell Vehicles

Research Area: Volume 12, Issue 3, May 2023 Year: 2023
Type of Publication: Article Keywords: Fuel Cell Vehicles, Centrifugal Air Compressor, Impeller Design, Flow Field Simulation
Authors:
  • SONG Weijie
  • YIN Hongbin
  • Zhang Jun
  • Liu Congzhen
  • Hu Wenjing
Journal: IJEIR Volume: 12
Number: 3 Pages: 25-34
Month: May
ISSN: 2277-5668
Abstract:
Centrifugal air compressors have advantages in terms of performance, efficiency, cost, size, and weight, and can be matched with expanders to recover energy, making them the most ideal choice for fuel cell vehicle compressors. This article provides a design method for compressor impellers, including the design process, key parameters, calculation formulas, and coefficient selection principles. This method is used to design an air compressor impeller, and the feasibility of the design method is verified through simulation using fluent. The simulation results show that the total pressure ratio of the designed impeller under design conditions can reach 2.6, the isentropic efficiency is 92.3%, the flow velocity inside the impeller is small, and mechanical energy can be converted into more pressure energy. The design method is feasible.

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