Centrifugal Compressor Behavior in Upstream Business

Abstract:

Centrifugal compressors are critical rotating equipments in industrial processes, especially for natural gas applications. Compressible gas exhibit complex flow behavior that requires a thorough understanding to ensure extended, safe and stabilized compressor performance. Without, Centrifugal compressors can undergo surge which restricts compressor operational range and jeopardize the safety of its components. Dynamic simulation then becomes necessary to evaluate performance and to implement integrated control schemes. This paper will investigate how centrifugal compressor responds to changes at inlet conditions i.e. increase in pressure, temperature and molecular weight. The effect of these changes on compressor performance will be simulated using Unisim Design dynamic compressor model. Results show that compressor operation is easily influenced by changes in inlet condition and that integrated control schemes are effective in safeguarding compressor from surge.

• Periodical: Applied Mechanics and Materials (Volume 823)
• Pages: 459-464
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.823.459
• Online since: January 2016
• Authors: Yazeed Sulaiman Al Ghafri, Aydin Azizi*
• Keywords: Centrifugal Compressor, Dynamic Simulation, Performance Map, Variable Speed

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