Centrifugal compressors are vital components in industrial applications, but they are proneto a disruptive phenomenon known as surge, which can lead to mechanical stress and
temperature increase. Surge occurrence is influenced by machine design, plant layout, and
geometry. Engineers often deploy long (cold) and short (hot) recycle valves to address this
issue. To ensure surge prevention, a fluid dynamic model is indispensable. In this study, a
1D Computational Fluid Dynamics (1D-CFD) model was developed using Amesim for a
two-section centrifugal compressor. The main objective was to investigate the impact of
various parameters on surge occurrence and compare different plant layouts to determine
the most suitable solution for the specific study case. Here, the focus is on the influence of
vent valves over the plant performance. To achieve this comparison, transient simulations of
emergency shutdown (ESD) operations were performed. This study contributes to a better
understanding of how machine design and operational factors affect surge behavior. By
systematically evaluating different plant layouts, we identified the most effective strategies
for preventing surge and enhancing compressor performance. This research provides
valuable insights for engineers and operators striving to optimize industrial processes and
improve the reliability and efficiency of centrifugal compressor systems
