http://www.cnr.it/ontology/cnr/individuo/prodotto/ID235308
Drying characteristics of wood cylinders for conditions pertinent to fixed-bed countercurrent gasification (Articolo in rivista)
- Type
- Label
- Drying characteristics of wood cylinders for conditions pertinent to fixed-bed countercurrent gasification (Articolo in rivista) (literal)
- Anno
- 2003-01-01T00:00:00+01:00 (literal)
- Alternative label
Colomba Di Blasi, Carmen Branca, Silvio Sparano, Barbara La Mantia (2003)
Drying characteristics of wood cylinders for conditions pertinent to fixed-bed countercurrent gasification
in Biomass & bioenergy; Elsevier Science Ltd., Oxford (Regno Unito)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Colomba Di Blasi, Carmen Branca, Silvio Sparano, Barbara La Mantia (literal)
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- Rivista
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- Dipartimento di Ingegneria Chimica, Universit?a degli Studi di Napoli \"Federico II\", P.le V. Tecchio, 80125 Napoli, Italy (literal)
- Titolo
- Drying characteristics of wood cylinders for conditions pertinent to fixed-bed countercurrent gasification (literal)
- Abstract
- The convective drying of pine wood cylinders (40 mm diameter) in hot air has been investigated experimentally for
conditions reproducing those encountered in the drying section of xed-bed updraft gasiers (nominal velocities of 0.4-
1:2 m=s and maximum air temperatures of 435-600 K). Temperature proles show a drying zone slowly propagating from
the heat exposed surfaces towards the inside, whereas the global drying rate presents two maxima, corresponding to moisture
evaporation along a thin supercial layer and sample heat-up, respectively. The drying times reproduce trends already known
on dependence of the external heating conditions and the initial moisture content. From the quantitative point of view, a
moisture content of 50% is observed to delay the particle heating times up to factors of 3-5. Acceptable quantitative agreement
is obtained between these measurements and the predictions of a simplied model of moisture evaporation in wood, which
can be used to treat single particle e7ects in the more complicated mathematical descriptions of gasier behavior. (literal)
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