Computer analysis of industrial batch dryer aerodynamics

 
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1998 (EN)
Computer analysis of industrial batch dryer aerodynamics (EN)

Markatos, NC (EN)
Kiranoudis, CT (EN)

N/A (EN)

One of the fundamental problems encountered in the batch dryer design field is the determination of appropriate equipment configuration that would ensure uniform distribution of air over the dryer trays. Such industrial batch dryer aerodynamics problems can be successfully investigated using computational fluid dynamics techniques. A mathematical model for predicting the two-dimensional air flow inside a typical industrial batch dryer equipment is developed and analyzed. The model consists of the full set of partial differential equations that describe the conservation of mass and momentum inside the dryer. The standard k-ε model is used to describe turbulence in addition to the governing conservation equations. Distribution of drying air within the dryer is regulated using adjustable air blast blades in the entrance section of the drying chamber. An appropriate configuration of these flow adjusting devices is proposed so that an adequately uniform drying air distribution pattern inside the drying chamber is achieved. Finally, a characteristic design case is presented to demonstrate the effectiveness of the proposed approach.One of the fundamental problems encountered in the batch dryer design field is the determination of appropriate equipment configuration that would ensure uniform distribution of air over the dryer trays. Such industrial batch dryer aerodynamics problems can be successfully investigated using computational fluid dynamics techniques. A mathematical model for predicting the two-dimensional air flow inside a typical industrial batch dryer equipment is developed and analyzed. The model consists of the full set of partial differential equations that describe the conservation of mass and momentum inside the dryer. The standard k-ε model is used to describe turbulence in addition to the governing conservation equations. Distribution of drying air within the dryer is regulated using adjustable air blast blades in the entrance section of the drying chamber. An appropriate configuration of these flow adjusting devices is proposed so that an adequately uniform drying air distribution pattern inside the drying chamber is achieved. Finally, a characteristic design case is presented to demonstrate the effectiveness of the proposed approach. (EN)

journalArticle

numerical methods (EN)
Turbulence (EN)
Mass conservation equation (EN)
modeling (EN)
Momentum conservation equation (EN)
Computational fluid dynamics (EN)
Computer simulation (EN)
Partial differential equations (EN)
aerodynamics (EN)
computational fluid dynamics (EN)
simulation (EN)
Numerical methods (EN)
Aerodynamics (EN)
Turbulence model (EN)
batch dryers (EN)
Machine design (EN)
Dryers (equipment) (EN)
drying (EN)
Batch dryers (EN)
Mathematical models (EN)
Computer aided design (EN)
Computer aided analysis (EN)
Drying (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Drying Technology (EN)

1998


Marcel Dekker Inc, New York, NY, United States (EN)



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