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马尾松锯材在热压干燥过程中的传热规律(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2005年04期
Page:
33-36
Column:
研究论文
publishdate:
2005-04-20

Article Info:/Info

Title:
Regularity of Heat Transfer During Press Drying of Pinus massoniana Lumber
Article ID:
1000-2006(2005)04-0033-04
Author(s):
WANG You-hong1 GU Lian-bai2 WANG Chuan-gui1 KE Shu-hua1 LIU Xing-e1
1. College of Forestry and Gardens Anhui Agricultural University, Hefei 230036, China; 2. College of Wood Science and Technology Naaiing Forestry University, Naniing 210037, China
Keywords:
P. massoniana Lamb. Press drying Mathematical model Heat transfer
Classification number :
S781
DOI:
10.3969/j.jssn.1000-2006.2005.04.008
Document Code:
A
Abstract:
Based on John ? F ? Siau’s unsteady-state transport theories, the mathematical models were established to simulate the heat transfer in Pinus massoniana lumber during press drying. After being steamed 3 hours at 100~C of dry bulb and 99.5℃ of wet bulb, i. e. 100~of relative humidity,then the P. massoniana lumber was pressed and dried at 180℃ platen temperature, with 0.2 MPa platen pressure and 60 s breath interval (the breath time is 1 s each time). The results showed that the models closely reflected the temperature change in P. massoniana lumber during press drying process, and the deviations between the measured and calculated temperature were 5% smaller except for a few values.

References

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Last Update: 2013-05-20