The Flare workspace in Symmetry empowers users to verify safety systems completely, efficiently, and rigorously. Models built in this integrated software are delivered faster, analyzed in steady state and dynamics, and easily maintained to match operation. This translates to shorter schedules for feasibility studies, reductions in CAPEX for both new designs and retrofit projects, and readiness for safety audits. 

Uniquely Integrated Approach

Symmetry Flare is the first software that can model the complete flare system including scenario management, relief valve sizing, rating, and installation, header hydraulic calculations, and flare safety performance. The consistent interface, fluid model, and automatic data propagation avoid compromise on quality assurance or maintainability. 

Moreover, there is no need to import process data. The Symmetry platform can model any facility in the Process workspace in steady-state or dynamics. Process models can span a gathering network through gas processing and refining facilities. You can simulate the entire scope at once without error-prone data transfer, and use the process model to calculate conditions for relief scenarios including overpressure events, operational flaring and blowdown. 

Rigorous Design on Limiting Scenarios

Combine steady-state and dynamic analysis as needed. Model a process in steady-state to calculate conservative required relief rates. Run the header network in steady-state to automatically verify safe operation for all relief scenarios - checking constraints on relief valves, piping, and the flare simultaneously.

Focus on limiting scenarios, where replacing steady-state conservative assumptions with rigorous dynamic simulation may result in significant savings and improved process understanding. Transition the process model to dynamics to calculate peak relief flows for these scenarios, then you can even connect the dynamic process directly to a dynamic flare header. You can model any scenario in dynamics including detailed blowdown/depressuring studies, fire with built-in heat input calculations (including radiant heat transfer), equipment or utility system failures, start up, shutdown, and operating procedures.

A variety of sequencing and control tools, including an event scheduler, a cause and effect matrix, and control scheme modeling, offer complete modeling flexibility and ensure reliability.

Flexible and Intuitive Solution

The Flare workspace offers capabilities to ensure a relief valve installation is safe across all scenarios. Valves may be modeled stand-alone, with piping, or with the header network. The sizing and selection workflow determines the governing scenario and evaluates capacity of the selected orifice size (API or ASME). It provides warnings for undersized valves and significantly oversized valves that may chatter. Users can verify maximum allowed backpressure (MABP) along with inlet and tailpipe constraints at design or rated flow.

Ensure Safe Design

Symmetry Flare takes safety design to the next level, performing advanced evaluation of the safety of flare operation as it affects personnel and the public. Analyze thermal radiation, noise, temperature of exposed objects, and flare gas dispersion using data from your network model across scenarios. Calculations are powered by Flaresim, the industry-standard thermal radiation software, now in Symmetry.

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