ITALIANO HIGH ACCESSIBILITY
Torna alla Home Page Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria Search in the site...  

European Charter for Researchers      HR EXCELLENCE IN RESEARCH
CREA - Via Po, 14 - 00198 ROMA
P.IVA: 08183101008 - C.F.: 97231970589
Tel: +39 06 478361 - Fax: +39 06 47836320 -
Posta Elettronica Certificata:

CIVIC ACCESS PRESS REVIEW URP JOB OPPORTUNITIES CONTRACTS TRANSPARENT ADMINISTRATION

freccina You are here: Home->Publications->Datasheet


Publication datasheet
Title:
Study of wood chip sizes: searching for a method based on image analysis
Authors:
Pari, L.; Febbi, P.; Assirelli, A.; Civitarese, V.; Santangelo, E.; Costa, C.; Menesatti, P.
Year:
2013
Languages:
ENG, eng
Journal:
21st European Biomass Conference and Exhibition, 3-7 June 2013, Copenhagen, Denmark.
Kind of publication:
Cartaceo
Location:
Via Giacomini 28, I - 50132 Florence.
Editor:
ETA-Florence Renewable Energies.
Abstract in Italian:
Abstract in English:
A standard method for the determination of the size distribution of wood chips is the oscillating screen method (EN 15149-1). Image analysis can give highly accurate measure of the two axial dimensions defined for each individual particle. Since the chip form influences the sieve results, the image analysis could provide a new method which is sensitive to the geometrical form for determining a more accurate measure of size integrated with form. A sample of wood chips was sieved through horizontally oscillating sieves, using five different screen hole diameters; the wood chips were sorted in decreasing size classes and the cumulative particle size distribution was determined. The true size distributions of a wood chip subsample, according to length and width, were determined by hand using a digital caliper and by weighing each of the chips. A comparison have been made between the traditional sieve result, the hand measured sizes (length and width) and the image analysis. The first results have shown that this last method has a high degree of accuracy for the characterization of wood chip size distribution. The main objective in the next future is to shift from a 2-dimensional static method to a 3-dimensional dynamic acquisition process.
Link:
http://dx.doi.org/10.5071/21stEUBCE2013-1AV.1.9

AREA RISERVATA  Webmaster:
Logo mySQL Logo PHP