Stoner Pipeline Simulator (SPS) leads the world in the fidelity of transient fluid flow simulation of natural gas pipeline networks. Control system analysis, equipment performance analysis, temperature analysis, composition analysis, pressure-flow capacity analysis, or any combination of these can be simulated accurately and easily with SPS. Of course, SPS performs simplified idealised simulations as well. You decide the complexity to fit your needs. Simulation Capabilities SPS provides a comprehensive selection of equations-of-state including BWRS, CNGA and AGA-8. SPS tracks gas composition with proven accuracy. You can also specify unique gas properties, such as gas ownership, and track the mixing of these properties throughout the network. As with equipment, you select the level of thermal modelling that fits your study needs, from a purely isothermal analysis to a fully transient radial heat transfer solution. SPS not only simulates the thermodynamic behaviour of the gas and the heat transfer to its surroundings, but also accounts for the heat capacity of the surroundings to store and release the transferred heat. Equipment and Controls SPS simulates all existing equipment including pipes, centrifugal and reciprocating compressors and station yard piping, regulators, valves, headers and heat exchangers, exactly as configured in the field. SPS models your entire control system, sensors, PID controllers, relays and actuators. You can use the SPS idealised controls for more simplified simulations. SPS models compressors simply or in complete detail. Enter your centrifugal compressor performance data at a single speed, and SPS will apply fan laws to complete the performance map. You can also specify the entire performance curve for the compressor and/or turbine driver or simulate variable guidevane compressors. For reciprocating compressors, use either simplified units or detailed compressors that consider pocket displacement and clearance ratios.