Skip header and navigation

3 records – page 1 of 1.

Decision aids for durable wood construction : review and redirection

https://library.fpinnovations.ca/en/permalink/fpipub41201
Author
O'Connor, J.
Morris, Paul I.
Date
March 1999
Material Type
Research report
Field
Sustainable Construction
of the assembly such as building paper and flashing, to enforce the building code requirement that the moisture
Author
O'Connor, J.
Morris, Paul I.
Contributor
Canada. Canadian Forest Service.
Date
March 1999
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Building construction
Planning
Design
Moisture content
Series Number
Canadian Forest Service No. 19
Project No. 1052
W-1611
Location
Vancouver, British Columbia
Language
English
Abstract
The project Decision Aids for Durable Wood Construction underwent a major review with the hiring of a new project leader (O'Connor) in September 1998. In consultation with the project liaisons, the work on this project since its start-up in 1993 was examined, the primary task of developing a computer-based tool for the building industry was reconsidered, the context of worldwide research into building envelope moisture failures was reviewed, and a revised project plan was proposed. Decision Aids was a self-contained project for its first three years, with efforts concentrated on knowledge acquisition, expert system experimentation and other foundation work for development of a computer tool. With a rise of interest in building envelope moisture failures across North America and elsewhere, Decision Aids activity shifted into a mode that was reactive to projects and events external to Forintek. This was necessary due to the level of effort external agencies, media and research labs were devoting to the topic. In particular, where the actions of outsiders began to have an influence on wood in construction, we found it critical to participate in order to ensure the fair and correct treatment of wood. The new project leader was asked to review the project and either get the project back on its original track or suggest a redirection. The project goal, to assist end users in best application of wood, was determined to be sound. In addition, the project leader recommended that resources continue to be allocated to participation in outside research efforts and other related activities. However, it was recommended that the project objective to develop computer-based decision tools be reassessed. Instead, the project leader recommended a course of action focused on tasks both shorter in term and smaller in scope, which will enable Forintek to deliver results better tailored to the immediate needs of industry in a time of building envelope moisture failure "crisis." The new project plan is split into two areas: 1) address building envelope moisture failures that are due to existing information not arriving in the right hands (i.e., a technology transfer problem); and 2) address building envelope moisture failures that are due to a lack of information (i.e., a research problem). The technology transfer area will create a formal plan for communication to the building industry, will enable Forintek to experiment with developing pathways to that new target audience, and will provide the means for the wood industry to provide helpful durability information to the public through a relatively neutral third party (Forintek). The research area will explore opportunities for limited scope experiments or collaborative field studies of wood system durability performance, with the intent of verifying or modifying codes, standards and best practice guides.
Documents
Less detail

L'eau et la durabilité : fiche technique sur la performance de la construction à ossature de bois

https://library.fpinnovations.ca/en/permalink/fpipub42416
Contributor
Forintek Canada Corp.
Canada Mortgage and Housing Corporation (CMHC)
Société centrale d'hypothèques et de logement (SCHL)
Date
April 2000
Material Type
Pamphlet
Field
Sustainable Construction
Contributor
Forintek Canada Corp.
Canada Mortgage and Housing Corporation (CMHC)
Société centrale d'hypothèques et de logement (SCHL)
Date
April 2000
Material Type
Pamphlet
Physical Description
4 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Moisture content
Wood decay
Series Number
Fact Sheet on Wood in Construction = Fiche technique sur le bois dans la construction
Location
Québec, Québec
Language
French
Abstract
Moisture - Control
Moisture - Prevention
Buildings - Houses - Moisture content
Decay - Prevention
Building construction - Design
Documents
Less detail

Temperature and moisture insensitive prediction of biomass calorific value from NIR spectra using external parameter orthogonalization

https://library.fpinnovations.ca/en/permalink/fpipub52660
Author
Hans, Guillaume
Allison, Bruce J.
Date
September 2018
Material Type
Research report
Field
Bioproducts
PDF
Ajoutez cet article à votre liste de sélections pour demander le PDF - Add this item to your selection list to request the PDF
for such an application. However, the NIR spectra are also influenced by biomass temperature (T°) and moisture content
Author
Hans, Guillaume
Allison, Bruce J.
Contributor
Natural Resources Canada. Canadian Forest Service
Date
September 2018
Material Type
Research report
Physical Description
27 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Biomass
Optimization
Spectroscopy
Temperature
Moisture content
Series Number
Transformative Technology ; TT 2018
Language
English
Abstract
In the pulp and paper and biofuel industries, real-time online characterization of biomass gross calorific value (GCV) is of critical importance to determine its quality and price and for process optimization. Near-infrared (NIR) spectroscopy is a relatively low-cost technology that could potentially be used for such an application. However, the NIR spectra are also influenced by biomass temperature (T°) and moisture content (MC). In this paper, external parameter orthogonalization (EPO) is employed to remove simultaneously the influence of T° and MC on the spectra before predicting GCV. EPO is of particular interest when one desires to transfer information from one modeling experiment to another, such as when developing a calibration model for a new property from the same material, or when it would be more efficient to divide the experimental effort. EPO was found to be an effective method for desensitizing a PLS calibration model to the influence of T° and MC, enabling robust and accurate prediction biomass GCV. Partial least squares (PLS) regression models developed with EPO always provided equal or better performance than models developed without EPO. The paper shows that experimental efforts and costs can be reduced by approximately one half while maintaining prediction accuracy and model robustness.
PDF
Ajoutez cet article à votre liste de sélections pour demander le PDF - Add this item to your selection list to request the PDF
Documents
Less detail