CFD simulation of hydrodynamics in spray dryer

Spray dryer is a well established method for converting liquid feed materials into dry powder forms. Spray dryer is widely used to produce foods such as whey,instant drinks, milk, tea and soups, as well as healthcare and pharmaceutical products, such as vitamins, enzymes, bacteria and also in produc...

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Main Author:	Siti Ferdaus, Aspari
Format:	Undergraduates Project Papers
Language:	English English English English
Published:	2010
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/21900/ http://umpir.ump.edu.my/id/eprint/21900/ http://umpir.ump.edu.my/id/eprint/21900/1/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20Table%20of%20contents.pdf http://umpir.ump.edu.my/id/eprint/21900/2/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20Abstract.pdf http://umpir.ump.edu.my/id/eprint/21900/3/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20Chapter%201.pdf http://umpir.ump.edu.my/id/eprint/21900/4/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20References.pdf

id	ump-21900
recordtype	eprints
spelling	ump-219002018-09-18T01:27:23Z http://umpir.ump.edu.my/id/eprint/21900/ CFD simulation of hydrodynamics in spray dryer Siti Ferdaus, Aspari TP Chemical technology Spray dryer is a well established method for converting liquid feed materials into dry powder forms. Spray dryer is widely used to produce foods such as whey,instant drinks, milk, tea and soups, as well as healthcare and pharmaceutical products, such as vitamins, enzymes, bacteria and also in production of fertilizers, detergent soap, and dyestuffs. Many experimental studies have been done to ensure the quality of the spray drying process. Alternatively, computational fluid dynamics (CFD) can be utilized to study the performance of the spray dryer. CFD modelling tools are increasingly used in the design, scale up, optimization and trouble-shooting of the spray drying chamber because measurements such as Laser Droppler Anemometer (LDA) of air flow, temperature, particle size and humidity within the drying chamber are very difficult and expensive in a large scale spray dryer. Hydrodynamics of the spray dryer in single and multiphase flow are not well understood and hence for economic and safety reasons, reliable models are needed for scale-up and design of such a spray dryer. In this work, a CFD modelling of hydrodynamics in counter-current and co-current spray drying tower were performed. The turbulence modelling was realized using five different turbulent models, i.e. standard k-ε, RNG k-ε, Realizable k-ε, Reynolds stress models and the Detached Eddy Simulation. The predicted airflow patterns inside the spray drying chamber were found to be in good agreement to the experimental data adopted from literature for all turbulence models tested in this work. A great potential of the Detached Eddy Simulation for predicting the flow pattern in counter-current and cocurrent spray dryer were uncovered as its provides more accurate predictions compared to other models tested in this work. Results from this simulation may be useful for development of a more comprehensive and accurate model for spray dryer in the future. 2010-04 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/21900/1/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20Table%20of%20contents.pdf pdf en http://umpir.ump.edu.my/id/eprint/21900/2/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20Abstract.pdf pdf en http://umpir.ump.edu.my/id/eprint/21900/3/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20Chapter%201.pdf pdf en http://umpir.ump.edu.my/id/eprint/21900/4/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20References.pdf Siti Ferdaus, Aspari (2010) CFD simulation of hydrodynamics in spray dryer. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:58648&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Siti Ferdaus, Aspari CFD simulation of hydrodynamics in spray dryer
description	Spray dryer is a well established method for converting liquid feed materials into dry powder forms. Spray dryer is widely used to produce foods such as whey,instant drinks, milk, tea and soups, as well as healthcare and pharmaceutical products, such as vitamins, enzymes, bacteria and also in production of fertilizers, detergent soap, and dyestuffs. Many experimental studies have been done to ensure the quality of the spray drying process. Alternatively, computational fluid dynamics (CFD) can be utilized to study the performance of the spray dryer. CFD modelling tools are increasingly used in the design, scale up, optimization and trouble-shooting of the spray drying chamber because measurements such as Laser Droppler Anemometer (LDA) of air flow, temperature, particle size and humidity within the drying chamber are very difficult and expensive in a large scale spray dryer. Hydrodynamics of the spray dryer in single and multiphase flow are not well understood and hence for economic and safety reasons, reliable models are needed for scale-up and design of such a spray dryer. In this work, a CFD modelling of hydrodynamics in counter-current and co-current spray drying tower were performed. The turbulence modelling was realized using five different turbulent models, i.e. standard k-ε, RNG k-ε, Realizable k-ε, Reynolds stress models and the Detached Eddy Simulation. The predicted airflow patterns inside the spray drying chamber were found to be in good agreement to the experimental data adopted from literature for all turbulence models tested in this work. A great potential of the Detached Eddy Simulation for predicting the flow pattern in counter-current and cocurrent spray dryer were uncovered as its provides more accurate predictions compared to other models tested in this work. Results from this simulation may be useful for development of a more comprehensive and accurate model for spray dryer in the future.
format	Undergraduates Project Papers
author	Siti Ferdaus, Aspari
author_facet	Siti Ferdaus, Aspari
author_sort	Siti Ferdaus, Aspari
title	CFD simulation of hydrodynamics in spray dryer
title_short	CFD simulation of hydrodynamics in spray dryer
title_full	CFD simulation of hydrodynamics in spray dryer
title_fullStr	CFD simulation of hydrodynamics in spray dryer
title_full_unstemmed	CFD simulation of hydrodynamics in spray dryer
title_sort	cfd simulation of hydrodynamics in spray dryer
publishDate	2010
url	http://umpir.ump.edu.my/id/eprint/21900/ http://umpir.ump.edu.my/id/eprint/21900/ http://umpir.ump.edu.my/id/eprint/21900/1/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20Table%20of%20contents.pdf http://umpir.ump.edu.my/id/eprint/21900/2/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20Abstract.pdf http://umpir.ump.edu.my/id/eprint/21900/3/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20Chapter%201.pdf http://umpir.ump.edu.my/id/eprint/21900/4/CFD%20simulation%20of%20hydrodynamics%20in%20spray%20dryer%20-%20References.pdf
first_indexed	2023-09-18T22:32:21Z
last_indexed	2023-09-18T22:32:21Z
_version_	1777416369587879936

CFD simulation of hydrodynamics in spray dryer

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