Gas / Air Intrusion Accumulation

BackgroundGas Vortex

Gas intrusion can be split into two categories: discharge and suction piping. As it relates to discharge piping, gas intrusion can potentially lead to a waterhammer transient.  The suction side is much more challenging to define, since more uncertainty is associated with the computational tools currently available in the industry.  The uncertainty increases with the system’s complexity when such features as Tee junctions are considered.  Gas could be introduced into the piping through multiple methods, including entrainment of air due to formation of a vortex. 


Fauske and Associates, LLC (FAI) supports investigation of all these phenomena both through testing (experimentation) and through the use of computational tools, including analytical solutions and extensive experience gained in this field through previous analyses.  This enables our customers to enhance the availability and reliability of operating plants while maintaining regulatory compliance, extending plant life and reducing operation and maintenance costs.  In fact, one of our customer collaborations received very positive feedback from the regulatory body (NRC) as detailed here.


Our experts provide critical plant analyses using the most modern computer codes and analytical methods, thermal hydraulic calculations and probabilistic risk analysis as well as evaluations for fire protection, radiation protection and environmental issues via consulting services including: 


Waterhammer Modeling in Thermo-Hydraulic Systems

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