Computational fluid dynamics of industrial batch dryers of fruits

Kiranoudis; Karathanos; Markatos

dc.contributor.author	Kiranoudis	en
dc.contributor.author	Karathanos	en
dc.contributor.author	Markatos	en
dc.date.accessioned	2014-03-01T01:14:28Z
dc.date.available	2014-03-01T01:14:28Z
dc.date.issued	1999	en
dc.identifier.issn	0737-3937	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13089
dc.subject	Batch dryers	en
dc.subject	Computational fluid dynamics	en
dc.subject	Modeling	en
dc.subject	Numerical methods	en
dc.subject	Simulation	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Computational fluid dynamics	en
dc.subject.other	Computer simulation	en
dc.subject.other	Drying	en
dc.subject.other	Food processing	en
dc.subject.other	Fruits	en
dc.subject.other	Heat transfer	en
dc.subject.other	Mass transfer	en
dc.subject.other	Mathematical models	en
dc.subject.other	Moisture	en
dc.subject.other	Partial differential equations	en
dc.subject.other	Turbulence	en
dc.subject.other	Turbulent flow	en
dc.subject.other	Industrial batch dryers	en
dc.subject.other	Dryers (equipment)	en
dc.subject.other	computational fluid dynamics	en
dc.subject.other	drying	en
dc.subject.other	food	en
dc.title	Computational fluid dynamics of industrial batch dryers of fruits	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/07373939908917516	en
heal.identifier.secondary	http://dx.doi.org/10.1080/07373939908917516	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	An industrial batch-type, tray air dryer constructed for drying of several fruits, was investigated. Momentum, heat and mass transfer regarding both gaseous and solid phases was simulated using computational fluid dynamics. A mathematical model of the dryer for predicting the turbulent, three-dimensional transfer phenomena inside the industrial batch dryer equipment was developed and analyzed. The model consists of the full set of partial differential equations that describes the conservation of mass, momentum and heat inside the dryer. The standard k-ε model was used to describe turbulence in addition to the governing conservation equations. The simulated profiles of flow field, temperature and humidity of the air phase revealed a lack of spatial homogeneity of air conditions above the product. The situation was found to greatly influence the distribution of material moisture content of the dried product for the various stages of drying. The investigation was carried out for the representative case of sultana raisins.An industrial batch-type, tray air dryer constructed for drying of several fruits, was investigated. Momentum, heat and mass transfer regarding both gaseous and solid phases was simulated using computational fluid dynamics. A mathematical model of the dryer for predicting the turbulent, three-dimensional transfer phenomena inside the industrial batch dryer equipment was developed and analyzed. The model consists of the full set of partial differential equations that describe the conservation of mass, momentum and heat inside the dryer. The standard k-ε model was used to describe turbulence in addition to the governing conservation equations. The simulated profiles of flow field, temperature and humidity of the air phase revealed a lack of spatial homogeneity of air conditions above the product. The situation was found to greatly influence the distribution of material moisture content of the dried product for the various stages of drying. The investigation was carried out for the representative case of sultana raisins.	en
heal.publisher	Marcel Dekker Inc, New York, NY, United States	en
heal.journalName	Drying Technology	en
dc.identifier.doi	10.1080/07373939908917516	en
dc.identifier.isi	ISI:000078611300003	en
dc.identifier.volume	17	en
dc.identifier.issue	1-2	en
dc.identifier.spage	1	en
dc.identifier.epage	25	en