Towards effcient simulation of off-gas scrubbing by a hybrid Eulerian-Lagrangian model
Sprache des Titels:
Englisch
Original Kurzfassung:
In a wet scrubber water is introduced into dust laden off-gas in order to capture the
fine dust particles. The scrubbing process comprises a whole set of phenomena like droplet
break-up, coalescence, liquid wall film and dust capturing. We introduce a comprehensive
simulation model is where representative droplets are traced in a Lagrangian manner while the
dust is treated as passive Eulerian phases. The wall film is considered by a model solving
the shallow water equations, including models for droplet deposition, film separation and film
stripping. Numerical results for pressure drop and capturing efficiency are in good agreement
with measurements.