Simulation of a Continuous Plug Flow Vibrated Fluidised Bed Drier
2010 (English)In: COMCAPLA 2010 / [ed] Manuela Cruz-Díaz, Mexico City, Mexico: National Polytechnic Institute (IPN) , 2010, SIM-106 p.Conference paper (Refereed)
The drying of solids in a continuous plug flow vibrated fluidised bed drier was studied by simulations. A simple equipment model described the process. The model considered the drying of a thin layer of particles wetted with a multicomponent mixture. Particles were assumed to move forward, well mixed in the direction of the airflow and only the longitudinal changes of liquid content, liquid composition and particle temperature along the drier were considered. The changes of gas composition and temperature after passing through the bed of particles were calculated by global balances in each volume element defined by a space step along the drier. Solids wetted with a liquid mixture: ethanol-2-propanol-water was used in the calculations. Simulations using the present model gave a good insight into the selectivity of the drying process and predicted correctly volatile retention during drying. The model was then used to examine the effect of the vibration intensity on the volatile retention.
Place, publisher, year, edition, pages
Mexico City, Mexico: National Polytechnic Institute (IPN) , 2010. SIM-106 p.
Volatile retention; Vibration intensity; Drier simulation
IdentifiersURN: urn:nbn:se:kth:diva-84841OAI: oai:DiVA.org:kth-84841DiVA: diva2:499674
1st Latin-American Multidisciplinary Congress of Applied Sciences. Granada, Nicaragua. November 9-12, 2010.
QC 201204182012-02-132012-02-132016-08-18Bibliographically approved