IGV position optimization for centrifugal blower

6th ModTech International Conference - Modern Technologies in Industrial Engineering

Gherman, B.^1 ; Gall, M.^1 ; Popa, V.A.^1 ; Sterie, V.-A.^1

National Research and Development Institute for Gas Turbines, COMOTI, Department of Computational Gas, Dynamics, 220D Iuliu Maniu Blvd., Bucharest

061126, Romania^1

关键词: Centrifugal blower;    CFD softwares;    Different operating conditions;    High-efficiency;    Maximum Efficiency;    Numerical flow analysis;    Pressure loss;    User requirements;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/400/4/042025/pdf
DOI  :  10.1088/1757-899X/400/4/042025

来源: IOP

【 摘 要 】

There is a need for centrifugal blowers to adapt to different operating conditions in order to meet the user requirements, in a high efficiency manner. Variable Inlet Guided Vanes (known as IGVs) are a simple solution which can lead to important energy savings. The IGV consists of wedge-shaped steel blades mounted around the inside circumference of a short length inlet pipe, with the purpose to restrict, or increase the inlet flow area, thus controlling the mass flow. The aim of this research is to determine the optimal distance between the IGV and the rotor in order to achieve maximum efficiency. The study will focus on the pressure losses and the separation of the boundary layer at the different lengths, for a fixed angle of the IGV of 45 degrees. For this study, the commercial CFD software Ansys CFX will be used to estimate the efficiency of the rotor for different set-ups, via a 3D steady-state numerical flow analysis. The end results of this study will help correlate the position of the IGV to the efficiency of the blower and to determine the optimal distance between the rotor and the IGV for an increased performance.