UniSim Design PIPESYS User Guide

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A pipeline must transport fluids over diverse topography and under varied conditions. Ideally this would be done efficiently with a correctly sized pipeline that adequately accounts for pressure drop, heat losses and includes the properly specified and sized inline facilities, such as compressors, heaters or fittings. Due to the complexity of pipeline network calculations, this often proves a difficult task. It is not uncommon that during the design phase an over-sized pipe is chosen to compensate for inaccuracies in the pressure loss calculations. With multi-phase flow, this can lead to greater pressure and temperature losses, increased requirements for liquid handling and increased pipe corrosion.
Accurate fluid modelling helps to avoid these and other complications and results in a more economic pipeline system. To accomplish this requires single and multi-phase flow technology that is capable of accurately and efficiently simulating the pipeline flow. PIPESYS has far-reaching capabilities to accurately and powerfully model pipeline hydraulics. It uses the most reliable single and multi-phase flow technology available to simulate pipeline flow.

Functioning as a seamless extension to UniSim Design, PIPESYS has access to UniSim Design features such as the component database and fluid properties. PIPESYS includes many inline equipment and facility options relevant to pipeline construction and testing. The extension models pipelines that stretch over varied elevations and environments.