Thermal treatment and its effect on the gas permeability of Populus nigra
In this investigation, the effect of thermal treatment on gas permeability of Populus nigra was studied. The boards with 5×5×15 cm in dimensions were steamed under average pressure 2-3 bar. The treatments were carried out at 4 temperatures of 120, 140, 160 and 180 ºC for 1, 2 and 3-hour. After therm...
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| Format: | Article |
| Language: | fas |
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Iranian Scientific Association of Wood and Paper Industries
2012-01-01
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| Series: | Iranian Journal of Wood and Paper Industries |
| Subjects: | |
| Online Access: | http://www.ijwp.ir/article_11519_031837439a166744b3e7c04169a8a05a.pdf |
| _version_ | 1818237636091838464 |
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| author | Maedeh Sayar Asghar Tarmian Mohammad Azadfallah H.Reza Taghiyari |
| author_facet | Maedeh Sayar Asghar Tarmian Mohammad Azadfallah H.Reza Taghiyari |
| author_sort | Maedeh Sayar |
| collection | DOAJ |
| description | In this investigation, the effect of thermal treatment on gas permeability of Populus nigra was
studied. The boards with 5×5×15 cm in dimensions were steamed under average pressure 2-3
bar. The treatments were carried out at 4 temperatures of 120, 140, 160 and 180 ºC for 1, 2
and 3-hour. After thermal treatment, 2 cylindrical specimens with 18mm diameter and 10mm
length parallel to grain were prepared from each board, and their transverse permeability was
measured. The results showed that thermal treatment did not have any effect on gas
permeability at 120 and 140 ºC but it reduced the gas permeability at 160 and 180 ºC. There
was not any significant difference in %95 confidence level between different periods of
thermal treatment. |
| first_indexed | 2024-12-12T12:28:54Z |
| format | Article |
| id | doaj.art-96b24cce624442e2ab6a8ea3d4da7f8f |
| institution | Directory Open Access Journal |
| issn | 2008-9066 2423-3242 |
| language | fas |
| last_indexed | 2024-12-12T12:28:54Z |
| publishDate | 2012-01-01 |
| publisher | Iranian Scientific Association of Wood and Paper Industries |
| record_format | Article |
| series | Iranian Journal of Wood and Paper Industries |
| spelling | doaj.art-96b24cce624442e2ab6a8ea3d4da7f8f2022-12-22T00:24:29ZfasIranian Scientific Association of Wood and Paper IndustriesIranian Journal of Wood and Paper Industries2008-90662423-32422012-01-014115115911519Thermal treatment and its effect on the gas permeability of Populus nigraMaedeh Sayar0Asghar Tarmian1Mohammad Azadfallah2H.Reza Taghiyari3دانشجوی کارشناسی ارشد،گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهراندانشیار،گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهراناستادیار گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهراناستادیار گروه صنایع چوب، دانشکد هی مهندسی عمران، دانشگاه تربیت دبیر شهید رجاییIn this investigation, the effect of thermal treatment on gas permeability of Populus nigra was studied. The boards with 5×5×15 cm in dimensions were steamed under average pressure 2-3 bar. The treatments were carried out at 4 temperatures of 120, 140, 160 and 180 ºC for 1, 2 and 3-hour. After thermal treatment, 2 cylindrical specimens with 18mm diameter and 10mm length parallel to grain were prepared from each board, and their transverse permeability was measured. The results showed that thermal treatment did not have any effect on gas permeability at 120 and 140 ºC but it reduced the gas permeability at 160 and 180 ºC. There was not any significant difference in %95 confidence level between different periods of thermal treatment.http://www.ijwp.ir/article_11519_031837439a166744b3e7c04169a8a05a.pdfPopulus nigrathermal treatmentgas permeability |
| spellingShingle | Maedeh Sayar Asghar Tarmian Mohammad Azadfallah H.Reza Taghiyari Thermal treatment and its effect on the gas permeability of Populus nigra Iranian Journal of Wood and Paper Industries Populus nigra thermal treatment gas permeability |
| title | Thermal treatment and its effect on the gas permeability of Populus nigra |
| title_full | Thermal treatment and its effect on the gas permeability of Populus nigra |
| title_fullStr | Thermal treatment and its effect on the gas permeability of Populus nigra |
| title_full_unstemmed | Thermal treatment and its effect on the gas permeability of Populus nigra |
| title_short | Thermal treatment and its effect on the gas permeability of Populus nigra |
| title_sort | thermal treatment and its effect on the gas permeability of populus nigra |
| topic | Populus nigra thermal treatment gas permeability |
| url | http://www.ijwp.ir/article_11519_031837439a166744b3e7c04169a8a05a.pdf |
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