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Titolo:
SIMULATION OF PINUS-RADIATA VENEER DRYING - MOISTURE-CONTENT AND TEMPERATURE PROFILES
Autore:
PANG S; RILEY SG; HASLETT AN;
Indirizzi:
FORESTRY RES INST ROTORUA,WOOD PROC DIV,PRIVATE BAG 3020 ROTORUA NEW ZEALAND
Titolo Testata:
Forest products journal
fascicolo: 7-8, volume: 47, anno: 1997,
pagine: 51 - 58
SICI:
0015-7473(1997)47:7-8<51:SOPVD->2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
S. Pang et al., "SIMULATION OF PINUS-RADIATA VENEER DRYING - MOISTURE-CONTENT AND TEMPERATURE PROFILES", Forest products journal, 47(7-8), 1997, pp. 51-58

Abstract

A mathematical model for timber drying has been extended to the drying of veneer from which the drying curves, moisture content, and temperature profiles in veneer wood are predicted. The simulation results illustrate that the whole drying process can be divided into three periods: a constant drying-rate period followed by two falling-rate periods. The falling-rate curves could be expressed by two segment lines as afunction of veneer average moisture content. Industrial-scale drying tests were performed to verify the model. In the tests, 2.6 mm Finns radiata veneer sheets both of sapwood and heartwood were dried at dry-bulb temperatures of 155 degrees C to 200 degrees C and wet-bulb temperatures of 65 degrees C to 95 degrees C. The average impinging air velocity in drying was 12.3 m/sec. The close agreement between the measured and the predicted moisture contents after drying gives confidence inapplying the model in further work to examine the influence of veneervariables and drying conditions on the drying rate.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 04:10:46