CFD Simulation of Air Flow Patterns in a Spray Dryer Fitted With a Rotary Disk

Saad Nahi Saleh; Laith Amjad Hameed

doi:10.31699/IJCPE.2016.2.8

Article Details

CFD Simulation of Air Flow Patterns in a Spray Dryer Fitted With a Rotary Disk

Authors:

Saad Nahi Saleh | Laith Amjad Hameed

Publisher:

University of Baghdad

Journal:

Iraqi Journal of Chemical and Petroleum Engineering Vol.17 Issue 2, pp.69-77

Document Type:

Article

Publication Date:

6/2016

Document Language:

English

Document ID (Org No.):

2001368145

pISSN:

2618-0707

DOI:

10.31699/IJCPE.2016.2.8

Keywords:

Abstract:

 The air flow pattern in a co-current pilot plant spray dryer fitted with a rotary disk atomizer was determined experimentally and modelled numerically using Computational Fluid Dynamics (CFD) (ANSYS Fluent ) software. The CFD simulation used a three dimensions system, Reynolds-Average Navier-Stokes equations (RANS), closed via the RNG k −ε turbulence model. Measurements were carried out at a rotation of the atomizer (3000 rpm) and when there is no rotation using a drying air at 25 oC and  air velocity at the inlet of  5 m/s without swirl. The air flow pattern was predicted experimentally using cotton tufts and digital anemometer. The CFD simulation predicted a downward central flowing air core surrounded by a slow recirculation zones near the walls for both conditions. Analysis of CFD simulation revealed that rotation of atomizer resulted in a swirling motion of the central air core. Simulations results were in good agreement with experimental data.

Article Details

CFD Simulation of Air Flow Patterns in a Spray Dryer Fitted With a Rotary Disk

Authors: Saad Nahi Saleh | Laith Amjad Hameed

Publisher: University of Baghdad

Journal: Iraqi Journal of Chemical and Petroleum Engineering Vol.17 Issue 2, pp.69-77

Document Type: Article

Publication Date: 6/2016

Document Language: English

Document ID (Org No.): 2001368145

pISSN: 2618-0707

DOI: 10.31699/IJCPE.2016.2.8

CFD

Spray

Rotary

Dryer

Simulation

Issues

Authors:

Saad Nahi Saleh | Laith Amjad Hameed

Publisher:

University of Baghdad

Journal:

Iraqi Journal of Chemical and Petroleum Engineering Vol.17 Issue 2, pp.69-77

Document Type:

Article

Publication Date:

6/2016

Document Language:

English

Document ID (Org No.):

2001368145

pISSN:

2618-0707

DOI:

10.31699/IJCPE.2016.2.8