Work

Application of operating scenarios and analysis of unstable flow characteristics at various angles of inlet guide vane

Year: 2024

Type: article

Abstract: In this study, we analyzed the performance characteristics of an axial flow pump with different angles of internally installed inlet guide vanes (IGVs). We predicted the pump's performance based on changes in the IGV angle and analyzed the impact of these angle variations on pump operation in the low-flow region. Additionally, we used real operational data from two sewage treatment plants to propose efficient operational scenarios. For turbulence flow analysis, the Reynolds-averaged Navier-Stokes equations were discretized based on the finite volume method. The grid formation was evaluated using the grid convergence index to select the optimal grid. Then, the internal flow was analyzed in detail through transient-state analysis. Through fast Fourier transform analysis, we confirmed that adjusting the IGV angle during pump operation in the low-flow region in response to load changes results in more stable operation compared with the existing method (valve control). Overall, our findings verified that energy reduction and efficient operation can be achieved through IGV angle adjustment compared with valve control.

Source: Scientific Reports

DOI: 10.1038/s41598-024-73436-2

Authors: Yong-Jin Son, Hyeon-Mo Yang, Kyoung-Yong Lee, Joon Yong Yoon, Young-Seok Choi

Institutions: Hanyang University, Korea Institute of Industrial Technology, Korea University of Technology and Education, Korea University of Science and Technology

Language: English

Topic: Turbomachinery Performance and Optimization

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,590