Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 83-88 |
| Journal | Holz als Roh- und Werkstoff |
| Volume | 61 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2003 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- jet drying
- drying
- veneers
- birch
- spruce
- heartwood
- sapwood
Cite this
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Experimental investigation of jet drying of birch and spruce veneers and modelling with a simplified approach. / Hanhijärvi, Antti (Corresponding Author); Hukka, A.; Paajanen, T.; Pulkkinen, P.; Sundman, S.
In: Holz als Roh- und Werkstoff, Vol. 61, No. 2, 2003, p. 83-88.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Experimental investigation of jet drying of birch and spruce veneers and modelling with a simplified approach
AU - Hanhijärvi, Antti
AU - Hukka, A.
AU - Paajanen, T.
AU - Pulkkinen, P.
AU - Sundman, S.
PY - 2003
Y1 - 2003
N2 - The paper presents experimental results of jet drying tests of birch (Betula pendula) and spruce (Picea abies) veneers at temperatures of 140°C and 190°C. Results include drying rates for 1.5 mm thick birch veneers as well as 1.5 mm and 2.6 mm thick spruce veneers of both heartwood and sapwood. Based on the test results, material parameter values for a simplified drying model are assessed. The model is based on the use of an effective diffusion coefficient and an effective surface emission coefficient, which values are calibrated to fit to the experimental results. It is observed, that separate model parameter sets are needed for the two different species but also for occurrence of heartwood or sapwood (spruce) and different thickness values of veneers.
AB - The paper presents experimental results of jet drying tests of birch (Betula pendula) and spruce (Picea abies) veneers at temperatures of 140°C and 190°C. Results include drying rates for 1.5 mm thick birch veneers as well as 1.5 mm and 2.6 mm thick spruce veneers of both heartwood and sapwood. Based on the test results, material parameter values for a simplified drying model are assessed. The model is based on the use of an effective diffusion coefficient and an effective surface emission coefficient, which values are calibrated to fit to the experimental results. It is observed, that separate model parameter sets are needed for the two different species but also for occurrence of heartwood or sapwood (spruce) and different thickness values of veneers.
KW - jet drying
KW - drying
KW - veneers
KW - birch
KW - spruce
KW - heartwood
KW - sapwood
U2 - 10.1007/s00107-003-0379-4
DO - 10.1007/s00107-003-0379-4
M3 - Article
VL - 61
SP - 83
EP - 88
JO - European Journal of Wood and Wood Products
JF - European Journal of Wood and Wood Products
SN - 0018-3768
IS - 2
ER -