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New CFD case study posted on simulation of recovery boiler combustion

Our latest CFD case study covers our work on a newly built recovery boiler to estimate operational temperatures, CO emissions, and NOx emissions. The recovery boiler is fueled solely by black liquor that is sprayed into the lower furnace.

The coal combustion model defined by Lagrangian particles was used in STAR-CCM+ to model the drying, devolatilization, and char burning reactions that occur to the black liquor. One challenging aspect of black liquor combustion is the droplets swell in size (4 to 5 times original diameter) during the drying and devolatilization reactions. These effects were captured by using customized functions to simulate particle swelling during combustion. Analysis results were comparable to results obtained from previous analyses on comparable boilers.

CFD CASE STUDY - Simulation of Recovery Boiler Combustion

Innovations in Motion and Multi-phase Flow Simulation with STAR-CCM+

How are mixers, washers and sprayers currently modeled? Are they even modeled? Are regulations, efficiencies, or performance concerns making you wanting to reevaluate the design process? In this webinar, we'll look at how STAR-CCM+ can be used to meet these challenges. STAR-CCM+ is a premier CFD and Multiphysics modeling tool that can be used for modeling spray, particles flow, motion, films, and non-Newtonian fluids.

Led by our Thermal Analysis and CFD expert Clay Hearn and co-hosted by our partner Applied CAx, this webinar will review available toolkits for simulating motion and multiphase flow with a focus application on mixing and wash. We'll evaluate the different methods for setting up these models and provide work through some tutorials on model setup.

Join us for this upcoming webinar:
Thursday, Oct. 17
11:30am Pacific / 2:30pm Eastern
 

Click here to register for Innovations in Motion and Multi-phase Flow Simulation with STAR-CCM+

An Engineer's User Guide to FEA Vibration Analysis

We recently compiled all of our vibration analysis seminars and white papers from over the years into one comprehensive document on vibration analysis. It's posted at AppliedCAx.com, where one can find all of our FEMAP resources. Vibration analysis is a huge topic and is easily the second most common type of FEA analysis after basic static stress analysis.

Within the field of vibration analysis, the most common type of analysis is that based on the linear behavior of the structure or system during its operation. That is, its stress/strain response is linear and when a load is removed, the structure returns to its original position in a stress/strain free condition.

Although this might sound a bit restrictive, it actually covers a huge swath of structures from automobiles, planes, ships, satellites, electrical circuit boards and consumer goods. If one needs to consider a nonlinear response of the structure during operation, there exist codes such as LS-DYNA that can solve for the complete nonlinear vibration response. But that is not simple or basic and is left for another seminar sometime in the future.

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