Symmetry™ process simulation software helps users model process workflows in a single collaborative environment, while integrating pipelines, pipe networks, facilities models, and flare systems. This enables consistent thermodynamics and fluid characterization across the whole system. With Symmetry software, users can switch between steady-state and dynamic modeling, optimize processes in upstream, midstream, downstream, and new energy sectors, and maximize the total value of the asset.
The user experience has been improved in the Symmetry 2023.3 release, and new features have been added to provide deeper insight into day-to-day modeling processes.
Enhanced electrolyzer unit operation including alkaline water electrolysis (AWE) technology
The electrolyzer unit operation has been expanded to include AWE technology, enabling users to simulate operation with an alkaline electrolyte. Further enhancements have been made to all electrolyzer modes, which include the proton exchange membrane (PEM), solid oxide electrolysis cell (SOEC), and AWE.
Notably, the unit now offers users the unique ability to capture the effect of temperature on current density and operating voltage, through a proprietary mechanistic model. Users will also be able to model nitrogen and air ingress, calculate the temperature set point to compensate for voltage decay, specify crossover details, and calculate the hydrogen to oxygen and oxygen to hydrogen ratios. Integration with the Symmetry software emission and economics modules enables users to consider the emissions generated from the utilities providing energy to the unit, as well as to generate a preliminary cost estimate for the unit.
Improved OLI link for corrosion calculations
The OLI Systems link with Symmetry software has been expanded to add support for corrosion calculations within pipe segment unit operations. Users will be able to define a material type from the OLI database to run corrosion calculations along the length of the pipe. The results can be viewed as a plot or table for a single pipe or a selection of pipes.
Flaresim™ flare systems design and analysis software dynamic modelling and visualization enhancements
Flaresim software dynamic calculations have been improved to allow for the specification of the fluid lower heating value (LHV) over time. This is combined with the previous dynamics functionality to more accurately model changes in the flared fluid over time. Additionally, enhancements were made to the isopleth grids to represent points of interest with the same color on all plots that they are present on, allowing the user to quickly identify what point they are looking at on a plot.
Flammability limits in fired equipment
A correlation has been added to fired equipment (burners, bath heaters, boilers, and fired heaters) to calculate the lower and upper explosive limit for the fuel in air. A warning is generated when the fuel conditions are below the lower limit or above the higher limit.