Application Of Dynamic Simulation In The Design, Operation, And Troubleshooting Of Compressor Systems.

Abstract

Dynamic simulation with rigorous mathematical models allows for evaluation of compressor performance under nonsteady-state conditions. It has become a powerful tool in the design of compressor antisurge protection, evaluation of operation envelope, driver size selection, field support, and troubleshooting. Recent developments in the simulator technology make it possible to develop large-scale dynamic simulation models and use them in the entire project life-cycle. This paper discusses the basic scope of dynamic simulation, typical application areas, and several case studies. The case studies are based on a wide range of applications, including conceptual feasibility study, detailed engineering, equipment specification, precommissioning, and field support. These case studies cover different compressor lineups, such as axial and centrifugal compressors and parallel operations. One example shows how a dynamic model was used to identify critical design issues at the early stage of engineering phase to avoid design or field problems at a later date. Other examples show how dynamic simulation was used to evaluate design alternatives and ultimately improve overall compressor operation and protection.