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.
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
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