Automating Hydraulic Simulations of Large Number of Scenarios

July 2016, Vol. 243, No. 7

By Nancy Gilmore, GTS Engineering & Consulting and Rick Brown, Pacific Gas & Electric (PG&E)

As PG&E and other utilities perform unparalleled levels of safety-related work on gas transmission systems, frequent and complex pipeline system outages occur throughout the year. This safety work also carries the potential of pressure reductions due to previously undetected system anomalies in the pipeline systems. Each of these system outages, or pressure reductions, requires the gas system be hydraulically analyzed under a multitude of scenarios to ensure safe system operation and reliable customer service. The number of scenarios requiring analysis quickly grows as system hydraulics are assessed for factors such as varying temperatures (demands), operating…

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