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Optimized Wood Manufactoring with Main Focus on Wood Drying
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
2000 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: Tekniska Högskolan , 2000. , p. 42
Series
Trita-BYMA, ISSN 0349-5257 ; 2000:1
Keywords [en]
Wood Drying Process, Optimization
Keywords [sv]
Virkestorkning
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-10035ISBN: 91-7170-519-8 (print)OAI: oai:DiVA.org:miun-10035DiVA, id: diva2:272106
Public defence
2000-03-24, Mitthögskolan, Östersund, 00:00 (Swedish)
Opponent
Supervisors
Available from: 2009-10-15 Created: 2009-10-14 Last updated: 2009-10-15Bibliographically approved
List of papers
1.
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2. Optimization of the wood drying process
Open this publication in new window or tab >>Optimization of the wood drying process
1997 (English)In: Structural Optimization, ISSN 0934-4373, Vol. 14, no 4, p. 232-241Article in journal (Refereed) Published
Abstract [en]

Modern optimization methods offer tools to create new, and to modify existing wood drying schedules. The total drying time can be minimized, at the sazne time as both the moisture content and the deformation after completed drying are within acceptable limits. The stress levels during drying are also considered.

Keywords
Wood drying, Optimization
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:miun:diva-1725 (URN)10.1007/BF01197945 (DOI)000071012100004 ()381 (Local ID)381 (Archive number)381 (OAI)
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2011-04-06Bibliographically approved
3. Optimization of the wood-drying process.
Open this publication in new window or tab >>Optimization of the wood-drying process.
1996 (English)In: Quality Wood Drying Through Process Modelling and Novel Technologies, Quebec Canada, Aug. 13-17, 1996: 5th International IUFRO Conference on Wood Drying, 25-28 January, 1999, Sainte-Foy, Québec: Forintek Canada Corp , 1996, p. 559-Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Sainte-Foy, Québec: Forintek Canada Corp, 1996
Keywords
Wood drying, Optimization
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:miun:diva-1507 (URN)1128 (Local ID)086488523 (ISBN)1128 (Archive number)1128 (OAI)
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2011-04-06Bibliographically approved
4. Optimization, a tool with which to create an effective drying schedule
Open this publication in new window or tab >>Optimization, a tool with which to create an effective drying schedule
Show others...
1998 (English)In: Holzforschung, ISSN 0018-3830, Vol. 52, no 5, p. 530-540Article in journal (Refereed) Published
Abstract [en]

A method for defining effective schedules for kiln drying of wood is presented. The method is designed in such a way that it proposes an optimized variation of temperature and humidity which yields the minimum total drying time, with the condition that the moisture content and the deformation not exceed specified limits after the drying and that the stress not exceeds a specified level at any time during the drying process in order to avoid crack development. To demonstrate the capability of the optimization method numerical results are presented. It should be noted that ill this first approach, drying starts from moisture content corresponding to the fibre-saturation point, i.e. approximate to 30%).

Keywords
Wood drying, Optimization
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:miun:diva-1726 (URN)000076293700014 ()382 (Local ID)382 (Archive number)382 (OAI)
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2011-04-06Bibliographically approved
5. Distributed optimization with a two-dimensional drying model of a board, built up by sapwood and heartwood
Open this publication in new window or tab >>Distributed optimization with a two-dimensional drying model of a board, built up by sapwood and heartwood
2001 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 55, no 4, p. 426-432Article in journal (Refereed) Published
Abstract [en]

Optimization with distributed computing is performed on a two-dimensional orthotropic drying model which allows boards with arbitrary outtake of the log and sapwood/heartwood distribution in the cross section. Drying schedules with an optimized variation of temperature and humidity which yields minimized drying time are created at the same time as moisture, stress and deformation levels are considered. A numerical example with distributed computing of a board with a mixture of sapwood and heartwood is presented. Drying starts from the fibre saturation point.

Keywords
Wood Drying, Optimization
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:miun:diva-1802 (URN)10.1515/HF.2001.070 (DOI)000170289300015 ()2-s2.0-0035675246 (Scopus ID)525 (Local ID)525 (Archive number)525 (OAI)
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2017-12-13Bibliographically approved
6. Optimized wood drying
Open this publication in new window or tab >>Optimized wood drying
1999 (English)In: Wood Drying research and technology for sustainable forestry beyond 2000 : , 1999, Stellenbosch, South Africa.: 6th International IUFRO Conference on Wood Drying, 25-28 January, 1999, Matieland, South Africa: Dept. of Wood Science, Faculty of Forestry , 1999, p. 310-Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Matieland, South Africa: Dept. of Wood Science, Faculty of Forestry, 1999
Keywords
Wood drying, Optimization
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:miun:diva-1506 (URN)1127 (Local ID)1127 (Archive number)1127 (OAI)
Available from: 2008-09-30 Created: 2008-09-30Bibliographically approved

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Carlsson, Peter

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