Modelling and simulation is an important method to evaluate process design of water circulation systems for recovery boilers. Dynamic process simulation software Apros was used in this work. Besides 1D modelling tools, another simulation methodology, namely Computational Fluid Dynamics (CFD), can be used in the water circulating studies. In this paper, a universal method to combine the results of CFD simulations with the 1D water circulation model. The data processing of the intermediate and final results of the simultions is managed by a specific Excel tool. The new generic heat fluxes were based on heat flux maps that were made with the state-of-the-art CFD models. As a summary of the benefits, a substantial improvement to the accuracy of the water circulation models, as well as enhanced speed and user independence was achieved.
|Number of pages||8|
|Publication status||Published - 2017|
|MoE publication type||Not Eligible|
|Event||International Chemical Recovery Conference, ICRC 2017 - Halifax, Canada|
Duration: 24 May 2017 → 26 May 2017
http://www.icrc2017.com/index.html (Web page)
|Conference||International Chemical Recovery Conference, ICRC 2017|
|Abbreviated title||ICRC 2017|
|Period||24/05/17 → 26/05/17|
|Other||Pulp mills and biorefineries, a world of growth in chemical recovery cycle.|
- water circulation
- CFD model
- recovery boiler
- heat flux
Sirainen, A., Röppänen, J., Maakala, V., Lappalainen, J., & Vakkilainen, E. (2017). Improved Evaluation of Recovery Boiler Water Circulation Design with a Help of the State-of-the-art CFD-based Heat Flux Data. Paper presented at International Chemical Recovery Conference, ICRC 2017, Halifax, Canada.