Equipment's role on the drying process of chestnut (Castanea sativa Mill.) fruits

Lamas, Hugo; Ramalhosa, Elsa; Morais, Alcina M.M.B.

Publication

Equipment's role on the drying process of chestnut (Castanea sativa Mill.) fruits

2015Journal article

dc.contributor.author	Lamas, Hugo
dc.contributor.author	Ramalhosa, Elsa
dc.contributor.author	Morais, Alcina M.M.B.
dc.date.accessioned	2017-03-13T09:39:36Z
dc.date.available	2017-03-13T09:39:36Z
dc.date.issued	2015
dc.description.abstract	In the present work, drying of chestnut (Castanea sativa Mill.) fruits was performed at different air temperatures in three equipments - convection oven, parallel flow tray dryer and fluidised bed dryer, at temperatures between 40 and 100°C. Newton diffusion approach and two-term models were found to be adequate in describing the moisture ratio and drying rates along time. For the same temperature, the dehydration processes that involved higher air velocities were > 1.6 times faster. On the other hand, for the same equipment the highest temperature (100°C) induced a drying rate ten times faster than the lowest temperature (40°C), reducing drying time. Apparent diffusivity ranged between 7.03 × 10^-11 m2 s-1 (40°C, convection oven) and 1.06 × 10^-9 m2 s-1 (100°C, fluidised bed dryer). In convection oven experiments, the diffusivity in function of temperature was well described by an Arrhenius type function, with an activation energy of 4.08 × 10^4 J mol-1.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Lamas, Hugo; Ramalhosa, Elsa; Morais, A.M.M.B. (2016). Equipment's role on the drying process of chestnut (Castanea sativa Mill.) fruits. International Journal of Computer Aided Engineering and Technology. ISSN 1757-2657. 7: 2, p. 273-286	pt_PT
dc.identifier.doi	10.1504/IJCAET.2015.068337	pt_PT
dc.identifier.issn	1757-2657
dc.identifier.uri	http://hdl.handle.net/10198/14118
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.publisher	Inderscience
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Chestnut fruits	pt_PT
dc.subject	Air drying	pt_PT
dc.subject	Convection oven	pt_PT
dc.subject	Parallel flow tray dryer	pt_PT
dc.subject	Fluidised bed dryer	pt_PT
dc.subject	Drying modelling	pt_PT
dc.subject	Equipment	pt_PT
dc.title	Equipment's role on the drying process of chestnut (Castanea sativa Mill.) fruits	pt_PT
dc.type	journal article
dspace.entity.type	Publication
oaire.citation.endPage	286	pt_PT
oaire.citation.issue	2	pt_PT
oaire.citation.startPage	273	pt_PT
oaire.citation.title	International Journal of Computer Aided Engineering and Technology	pt_PT
oaire.citation.volume	7	pt_PT
person.familyName	Ramalhosa
person.givenName	Elsa
person.identifier.ciencia-id	1A1D-FC05-A05D
person.identifier.orcid	0000-0003-2503-9705
person.identifier.scopus-author-id	6602978189
rcaap.rights	restrictedAccess	pt_PT
rcaap.type	article	pt_PT
relation.isAuthorOfPublication	d74be6c0-1703-4f77-bd81-e289ec981ee3
relation.isAuthorOfPublication.latestForDiscovery	d74be6c0-1703-4f77-bd81-e289ec981ee3