TRAX has found that using ProTRAX in combination with ANSYS Fluent Computational Fluid Dynamics (CFD) makes even more detailed analysis of process behavior possible. In this hybrid approach, TRAX assembles a CFD model to evaluate steady-state flow patterns and pressure drops. These values are used in a ProTRAX model to evaluate design pressures. CFD analysis of new equipment provides the in-depth operational data that can be used with ProTRAX models to simulate system-wide operations, which allows for detailed analysis of control strategies and expected system performance.

Load Cycling

Maintaining electrical grid stability, especially in partnership with renewable power sources that routinely experience large swings in megawatt output, requires that plants rapidly ramp load. However, rapid startups and extreme load cycling can exceed recommended equipment limitations, leading to excessive life expenditure, premature equipment failure, and costly down-time.

Using our ProTRAX simulation system with CFD and finite element analysis (FEA) software, TRAX can quantify potential equipment component lifetime  consumed when rapidly cycling load.  We can:

  • Analyze rapid load-swing component fatigue

  • Assess component end-of-life

  • Analyze the cost of cycling damage

  • Propose improvements for asset management

  • Future planning recommendations for asset reliability

Other Benefits

TRAX can help solve other problems related to thermal cycling, including:

  • Flue gas stratification areas that cause poor heat transfer, low efficiency, and increased heat rate

  • Flow conditions leading to tube vibrations, which weaken tubes and support structures

  • Evaporator tube bank conditions that cause uneven tube heating and departure from nucleate boiling

  • Inefficient SCR operation

  • Poor ammonia dispersion upstream of the SCR, leading to excessive ammonia use, ammonia slip, and insufficient NOx removal

  • Stack condensation