Shaanxi-Beijing natural gas line shows power cost optimization

Effective optimization of natural gas pipeline energy costs over time should assume neither steady-state operation nor indefinite operation at near-capacity flow rates.The Shaanxi-Beijing natural gas pipeline is the first to use intermediate compressor stations in China. With one reciprocating compressor station and three centrifugal compressor stations, the pipeline has a capacity of about 3.6 bcm/year (363.2 MMcfd). Increased gas demand in Beijing and the commissioning of three underground gas storage facilities connected to the pipeline cause it to operate in a rough steady state near capacity for most of the year.A dynamic programming model allowed for establishment of optimal steady ...

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