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19 records – page 1 of 2.

Climate change mitigation effect of harvested wood products in regions of Japan

https://research.thinkwood.com/en/permalink/catalogue3078
Year of Publication
2015
Topic
Environmental Impact
Author
Kayo, Chihiro
Tsunetsugu, Yuko
Tonosaki, Mario
Organization
Tokyo University of Agriculture and Technology
Publisher
Springer
Year of Publication
2015
Format
Journal Article
Topic
Environmental Impact
Keywords
Harvested Wood Products
Carbon Storage Effect
Material Substitution Effect
Energy Substitution Effect
Inter-Regional Flow
Production Approach
Research Status
Complete
Series
Carbon Balance and Management
Summary
Background Harvested wood products (HWPs) mitigate climate change through carbon storage, material substitution, and energy substitution. We construct a model to assess the overall climate change mitigation effect (comprising the carbon storage, material substitution, and energy substitution effects) resulting from HWPs in regions of Japan. The model allows for projections to 2050 based on future scenarios relating to the domestic forestry industry, HWP use, and energy use. Results Using the production approach, a nationwide maximum figure of 2.9 MtC year-1 for the HWP carbon storage effect is determined for 2030. The maximum nationwide material substitution effect is 2.9 MtC year-1 in 2050. For the energy substitution effect, a nationwide maximum projection of 4.3 MtC year-1 in 2050 is established, with at least 50 % of this figure derived from east and west Japan, where a large volume of logging residue is generated. For the overall climate change mitigation effect, a nationwide maximum projection of 8.4 MtC year-1 in 2050 is established, equivalent to 2.4 % of Japan’s current carbon dioxide emissions. Conclusions When domestic roundwood production and HWP usage is promoted, an overall climate change mitigation effect is consistently expected to be attributable to HWPs until 2050. A significant factor in obtaining the material substitution effect will be substituting non-wooden buildings with wooden ones. The policy of promoting the use of logging residue will have a significant impact on the energy substitution effect. An important future study is an integrated investigation of the climate change mitigation effect for both HWPs and forests.
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Cradle-To-Gate Life-Cycle Assessment of Laminated Veneer Lumber (LVL) Produced in the Pacific Northwest Region of the United States

https://research.thinkwood.com/en/permalink/catalogue783
Year of Publication
2017
Topic
Environmental Impact
Material
LVL (Laminated Veneer Lumber)
Author
Bergman, Richard
Alanya-Rosenbaum, Sevda
Organization
Forest Products Laboratory
Year of Publication
2017
Format
Report
Material
LVL (Laminated Veneer Lumber)
Topic
Environmental Impact
Keywords
Life-Cycle Assessment
US
Cradle-to-Gate
Production
Life-Cycle Inventory
Life-Cycle Impact Assessment
Research Status
Complete
Summary
The goal of this study was to update life-cycle assessment (LCA) data associated with laminated veneer lumber (LVL) production in the Pacific Northwest (PNW) region of the United States from cradle-to-gate mill output. The authors collected primary mill data from LVL production facilities per Consortium on Research for Renewable Industrial Materials (CORRIM) Research Guidelines. Comparative assertions were not a goal of this study.
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Free
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Cradle-To-Gate Life-Cycle Assessment of Laminated Veneer Lumber (LVL) Produced in the Southeast Region of the United States

https://research.thinkwood.com/en/permalink/catalogue782
Year of Publication
2017
Topic
Environmental Impact
Material
LVL (Laminated Veneer Lumber)
Author
Bergman, Richard
Alanya-Rosenbaum, Sevda
Organization
Forest Products Laboratory
Year of Publication
2017
Format
Report
Material
LVL (Laminated Veneer Lumber)
Topic
Environmental Impact
Keywords
Life-Cycle Impact Assessment
US
Production
Life-Cycle Assessment
Cradle-to-Gate
Research Status
Complete
Summary
The goal of the present study was to develop life-cycle impact assessment (LCIA) data associated with gate-to-gate laminated veneer lumber (LVL) production in the southeast (SE) region of the U.S. with the ultimate aim of constructing an updated cradle-to-gate mill output life-cycle assessment (LCA). The authors collected primary (survey) mill data from LVL production facilities per Consortium on Research for Renewable Industrial Materials (CORRIM) Research Guidelines. Comparative assertions were not a goal of the present study.
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Free
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Effects on Global Forests and Wood Product Markets of Increased Demand for Mass Timber

https://research.thinkwood.com/en/permalink/catalogue2886
Year of Publication
2021
Topic
Market and Adoption
Author
Nepal, Prakash
Johnston, Craig
Ganguly, Indroneil
Organization
Forest Products Laboratory
University of Washington
Editor
Rosen, Marc
Publisher
MDPI
Year of Publication
2021
Format
Journal Article
Topic
Market and Adoption
Keywords
Timber Price
Timber Harvest
Forest Stock
Production
Consumption
Trade
Research Status
Complete
Series
Sustainability
Summary
This study evaluated the effects on forest resources and forest product markets of three contrasting mass timber demand scenarios (Conservative, Optimistic, and Extreme), up to 2060, in twelve selected countries in Asia, Europe, North America, and South America. Analyses were carried out by utilizing the FOrest Resource Outlook Model, a partial market equilibrium model of the global forest sector. The findings suggest increases in global softwood lumber production of 8, 23, and 53 million m3 per year by 2060, under the Conservative, Optimistic, and Extreme scenarios, respectively, leading to world price increases of 2%, 7%, and 23%, respectively. This projected price increase is relative to the projected price in the reference scenario, altering prices, production, consumption, trade of forest products, timber harvest, forest growth, and forest stock in individual countries. An increase in softwood lumber prices due to increased mass timber demand would lead to the reduced consumption of softwood lumber for traditional end-use (e.g., light-frame construction), suggesting a likely strong market competition for softwood lumber between the mass timber and traditional construction industries. In contrast, the projected effect on global forest stock was relatively small based on the relatively fast projected biomass growth in stands assumed to be regenerated after harvest.
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Feasibility of Cross-Laminated Timber Production from UK Sitka Spruce

https://research.thinkwood.com/en/permalink/catalogue1573
Year of Publication
2013
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Author
Crawford, David
Hairstans, Robert
Smith, Ryan
Year of Publication
2013
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Market and Adoption
Keywords
Spruce
United Kingdom
Production
Conference
European Conference on Cross Laminated Timber (CLT)
Research Status
Complete
Notes
May 21-22, 2013, Graz, Austria
Summary
Cross-Laminated Timber (CLT) is an innovative wood product, which can be used for almost all superstructure elements. It is generally produced from kiln dried, fast growing timber. Currently the majority of CLT used within the UK construction industry is manufactured in central mainland Europe and imported to the UK. The goal of this study is to establish the conditions required for implementing a CLT production and construction capability using available UK timber stock, thus offering a low carbon alternative to multi-story steel and concrete commercial constructions.
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Fire Resistance Characteristics of Glued Laminated Timber Manufactured from Malaysian Tropical Hardwood Timber (Malagangai): Charring Rate and Fire Classification

https://research.thinkwood.com/en/permalink/catalogue1708
Year of Publication
2016
Topic
Fire
Material
Glulam (Glue-Laminated Timber)
Author
Ahmad, Zakiah
Aicher, Simon
Bakri, Zulhazmee
Year of Publication
2016
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Topic
Fire
Keywords
Charring Rate
Malagangai
Flame Spread
Smoke Production
Burning Droplets
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4471-4476
Summary
This paper reports the investigation on the one-dimensional charring rate of glued laminated timber manufactured from Malaysian Tropical Hardwood namely Malagangai (density, 800 kg/m 3 ). The fire test was conducted at SP Wood Technology in Stockholm in accordance with EN 13381-7:2014 for determination of charring rate. The reaction-to-fire tests for fire classifications in terms of flame spread, smoke production and burning droplets were investigated at University of Stuttgart, Germany in accordance with the procedures given in EN 13 501-1 : 2010. The results show that the charring rate of glulam Malagangai is 0.6 mm/min. The fire behaviour of the glulam is in Class C with medium smoke generation and very little burning droplets.
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Free
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Flexible and transportable robotic timber construction platform – TIM

https://research.thinkwood.com/en/permalink/catalogue2889
Year of Publication
2020
Topic
Market and Adoption
Application
Wood Building Systems
Author
Wagner, Hans
Alvarez, Martin
Kyjanek, Ondrej
Bhiri, Zied
Buck, Matthias
Menges, Achim
Organization
University of Stuttgart
Publisher
Elsevier
Year of Publication
2020
Format
Journal Article
Application
Wood Building Systems
Topic
Market and Adoption
Keywords
Robotic Fabrication
Robotic Timber Construction
Local Manufacturing
Reconfigurable Automation
Sustainable Production
Wood Architecture
Research Status
Complete
Series
Automation in Construction
Summary
This paper presents a new approach to robotic fabrication in the building industry through the conceptualization, development and evaluation of a largescale, transportable and flexible robotic timber construction platform – named TIM. Novel solutions are necessary to make robotic fabrication technologies more accessible for timber construction companies. The developed robotic system is location independent and reconfigurable. It can be rapidly integrated into existing fabrication environments of typical carpentries on a per-project basis. This allows the exploitation of emerging synergies between conventional craft and specialized automation technologies and benefits both quality and productivity of the trade. We portrait how the platform enabled the effective robotic prefabrication of a complex segmented wood shell structure and discuss the fabrication system based on critical performance parameters. Further research is needed to disentangle the mutual dependencies of building-systems and respective automation technologies.
Online Access
Free
Resource Link
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The Global Mass Timber Panel (MTP) Industry in a Post-Pandemic New Normal

https://research.thinkwood.com/en/permalink/catalogue2782
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
DLT (Dowel Laminated Timber)
NLT (Nail-Laminated Timber)
Organization
TallWood Design Institute
Oregon State University
Material
CLT (Cross-Laminated Timber)
DLT (Dowel Laminated Timber)
NLT (Nail-Laminated Timber)
Topic
Market and Adoption
Keywords
Manufacturing
Production Capacity
Research Status
In Progress
Notes
Project contact is Lech Muszynski, Oregon State University College of Forestry
Summary
This research is a continuation of a long-term effort of systematically monitoring developments in the global CLT industry launched by the PI in 2011 and since 2017 partially funded by an ARS/TDI grant. Overall, including research conducted before ARS funding, this effort has involved two surveys launched in 2016 and in 2019; 46 targeted site tours of CLT manufacturing lines located in the USA, Japan, Australia, New Zealand, China, France, Germany, Norway, Sweden, Finland, and Estonia; and an extensive review of trade journals tracking the development of the CLT industry. While adhesive-bonded CLT remains the main focus of the research, beginning with 2017 the survey also included two related mass timber panel (MTP) products classified as glueless CLT (massive cross-laminated timber panels bonded with nails and hardwood dowels), MTP hardware manufacturers, construction sites and research laboratories concerned with MTP related research. To-date we have created and populated a unique database covering more than 116 manufacturing plants (including more than 60 CLT lines) across the globe. The database includes information on MTP manufacturers within and outside the MTP industry cluster, including: changes in production capacity and dominant technologies in global MTP production; key success factors and constraints determining the emergence and growth of production; differences in perception of opportunities, risks, challenges and constraints; related business models, strategies, contextual policies, and; the role of innovation systems.
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A Hierarchical Approach for Solving an Integrated Packing and Sequence-Optimization Problem in Production of Glued Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue2580
Year of Publication
2020
Topic
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Acermann, Heiner
Diessel, Erik
Publisher
Springer
Year of Publication
2020
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Design and Systems
Keywords
Sawmills
Production
Packing
Optimization
Research Status
Complete
Series
EURO Journal on Computational Optimization
Summary
Integrated packing and sequence-optimization problems appear in many industrial applications. As an example of this type of problem, we consider the production of glued laminated timber (glulam) in sawmills: Wood beams must be packed into a sequence of pressing steps subject to packing constraints of the press and subject to sequencing constraints. In this paper, we present a three-stage approach for solving this hard optimization problem: Firstly, we identify alternative packings for small parts of an instance. Secondly, we choose an optimal subset of these packings by solving a set cover problem. Finally, we apply a sequencing algorithm in order to find an optimal order of the selected subsequences. For every level of the hierarchy, we present tailored algorithms, analyze their performance and illustrate the efficiency of the overall approach by a comprehensive numerical study.
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Influence of Micro Structured Surface on the Bond Quality of Hardwood

https://research.thinkwood.com/en/permalink/catalogue454
Year of Publication
2014
Topic
Connections
Cost
Material
Glulam (Glue-Laminated Timber)
Author
Lehmann, Martin
Volkmer, Thomas
Year of Publication
2014
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Topic
Connections
Cost
Keywords
Beech
Delamination
Hardwood
Melamine Urea Formaldehyde
Production Costs
Micro-structure
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
The state of the art requires a closed waiting time of about one hour for the beech glulam production. This has a negative influence on the production costs. Micro structured surfaces showed good performance in combination with coatings. The authors have performed tension-shear and delaminating test in order to investigate the influence of micro structured surfaces on the bond quality of hardwoods. The results are very promising and show clearly improved delaminating resistance for all tested adhesive. No closed waiting time was needed to achieve satisfying results using MUF in combination with beech.
Online Access
Free
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19 records – page 1 of 2.