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15 records – page 1 of 2.

Accelerated drying of British Columbia framing lumber

https://library.fpinnovations.ca/en/permalink/fpipub779
Author
Mackay, J.F.Graham
Date
April 1984
Edition
37108
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Mackay, J.F.Graham
Contributor
Science Council of British Columbia.
Date
April 1984
Edition
37108
Material Type
Research report
Physical Description
13 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Steam
Seasoning steam
Seasoning high temperature
Seasoning
Drying
High temperature
Series Number
W-327
Location
Vancouver, British Columbia
Language
English
Abstract
Seasoning - Steam
Seasoning - High temperature drying
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Analysis of Alberta’s pavement capacity to support winter weight premiums

https://library.fpinnovations.ca/en/permalink/fpipub49858
Author
Thiam, Papa-Masseck
Bradley, Allan
Date
May 2018
Material Type
Research report
Field
Fibre Supply
Characteristics of the simulator, pit, and temperature control system
Author
Thiam, Papa-Masseck
Bradley, Allan
Date
May 2018
Material Type
Research report
Physical Description
57 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Transportation & Infrastructure
Subject
Roads
Transport
Trucks
Weight
Alberta
Temperature
FOP Technical Report
FPI TR
Series Number
Technical Report ; TR 2018 n.28
Language
English
Abstract
FPInnovations, in cooperation with Alberta Transportation and the Laval University i3C Chair, undertook a review of the starting threshold for initiating winter weight hauling in Alberta. The objective of this project was to conduct an engineering analysis of freezing pavements to determine the minimum frost depth at which log hauling at winter weight premiums (WWP) in Alberta could start without compromising pavement service life. The report describes literature on freezing pavement engineering, Canadian winter weight policies, a controlled trafficking simulation of an instrumented pavement as it was frozen, and subsequent modeling to valiidate results and extrapolate results ot a wider range of pavement structures. It was recommended that the current 1.0 m starting frost depth threshold be reduced to a depth of 700 mm.
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An overview of air conditioning in Canadian Forest Equipment

https://library.fpinnovations.ca/en/permalink/fpipub43253
Author
Courteau, J.
Date
1987
Material Type
Research report
Field
Fibre Supply
Author
Courteau, J.
Date
1987
Material Type
Research report
Physical Description
8 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Temperature
Machine operator
Series Number
Technical Notes
Language
English
Abstract
Air-conditioning systems on Canadian logging operations have traditionally suffered form low reliability, as is reported in a survey of FERIC's member companies. This report is intended to provide an overview of the current situation, and to assist present and future users by informing them about air-conditioning principles, maintenance requirements, choice of components, and the use of these components in actual applications. With judicious choice, installation and care, such systems can be successfully applied in the forest industry.
Forest machines
Cabs
Thermal environment
TEMPERATURE CONTROL
AIR CONDITIONING
Air conditioning equipment
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Comparison of two kiln systems used in drying western hem-fir : Dehumidifcation (Heat pump) Hot air (Direct fired natural gas)

https://library.fpinnovations.ca/en/permalink/fpipub36973
Author
Mackay, J.F.Graham
Date
June 1985
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Mackay, J.F.Graham
Date
June 1985
Material Type
Research report
Physical Description
18 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Seasoning kilns
Seasoning kiln drying
Seasoning high temperature
Seasoning
Drying
Kilns
High temperature
Series Number
W-90
Location
Vancouver, British Columbia
Language
English
Abstract
Seasoning - Kilns - Tests
Seasoning - Dehumidification
Hem-fir - Seasoning
Seasoning - High temperature drying
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Development of a hydraulic air conditioner for forest machinery

https://library.fpinnovations.ca/en/permalink/fpipub43362
Author
Courteau, J.
Date
1990
Material Type
Research report
Field
Fibre Supply
Author
Courteau, J.
Date
1990
Material Type
Research report
Physical Description
4 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Air
Temperature
Series Number
Technical Notes
Language
English
Abstract
This report chronicles the joint development of an air conditioner for forest machinery by FERIC and I & M electric rebuilders of Thunder Bay, Ontario. The air conditioner is hydraulically powered and used a compressed refrigerant gas for heat transfer. Three prototypes were designed, built, and tested in forest operations in Ontario and Quebec.
Forest machines
Cabs
Thermal environment
TEMPERATURE CONTROL
Air conditioning equipment
DEVELOPMENT
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Drying speciality hem-fir and WRC products

https://library.fpinnovations.ca/en/permalink/fpipub7665
Author
Oliveira, Luiz C.
Lazarescu, Ciprian
Star, Phil
Date
March 2015
Edition
52668
Material Type
Research report
Field
Wood Manufacturing & Digitalization
.......................................................................................................................... 11 4.2 Internal Core Temperature for Large Timbers During the Heat-up Phase
Author
Oliveira, Luiz C.
Lazarescu, Ciprian
Star, Phil
Contributor
BC Coastal Forest Industry
Date
March 2015
Edition
52668
Material Type
Research report
Physical Description
24 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Drying
Hem-Fir
Kilns
Steam
Temperature
Location
Vancouver, British Columbia
Language
English
Abstract
This project evaluated a number of opportunities to coastal producers related to kiln drying issues such as drying practices related to high-value products, drying with superheated steam vacuum and internal core temperature monitoring for large timbers during the heat-up phase. In summary, this project included several laboratory studies to evaluate the using superheated steam/vacuum (SS/V) for drying 7/8”x 6, green western red cedar lumber, and 8x8 and 5x(5,6,7,8,9,10,12) Douglas-fir timbers. SS/V drying yielded faster drying schedules when compared to the results obtained in industrial conventional kilns. The results obtained from the SS/V drying of WRC indicated the potential benefits of technology for drying specialty products especially when compared to drying times obtained with conventional drying (longer than 7 days). However, the results obtained also emphasize the importance of green sorting that is, sorting prior to drying to optimize drying times and reduce the variation of final moisture content. For large cross section Douglas-firs the drying times were between 3 and 14 days depending on the severity of the drying schedule and initial moisture content distribution. The influence of moisture content and cross section during the early and late stages of the heating process were evaluated on 5x5, 6x6 and 8x8 Douglas fir timbers. Thermodynamic equilibrium was reached after 20 hours regardless of moisture content or cross section size. The knowledge is intended to be used to design conventional drying schedules for large cross section timbers.
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Moisture meter correction factors for high-temperature dried softwood

https://library.fpinnovations.ca/en/permalink/fpipub38094
Author
Garrahan, Peter A.
Date
March 1986
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Garrahan, Peter A.
Date
March 1986
Material Type
Research report
Physical Description
9 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Seasoning high temperature
Seasoning
Drying
High temperature
Series Number
CFS/DSS project no 9a/85-86
Project no.3-37-10-204
E-288
Location
Ottawa, Ontario
Language
English
Abstract
Moisture determination, Electrical
Drying, High Temperature
Seasoning - High temperature drying
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Optimal log diameter sorting for veneer processing

https://library.fpinnovations.ca/en/permalink/fpipub39888
Author
Wang, Brad J.
Dai, Chunping
Date
May /2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
how log temperature and conditioning time change with regard to log diameter sorting and conditioning
Author
Wang, Brad J.
Dai, Chunping
Date
May /2014
Material Type
Research report
Physical Description
17 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Sortyards
Logs
Plywood
Sorting
Temperature
Series Number
W-3124
Language
English
Abstract
Log yard management has a significant effect on plywood/LVL manufacturing, particularly in the aspects of log conditioning, veneer processing and product quality. At present, log conditioning is seldom optimized due mainly to the variation of species and log diameter, log storage time and seasonal climate changes. The key objectives of this work were to: 1) develop a new computer program to simulate how log temperature and conditioning time change with regard to log diameter sorting and conditioning parameters; and 2) determine the optimal log diameter sorting points in order to achieve the best log conditioning for peeling. A new computer simulation program FPLogcon™ was successfully developed to simulate how log temperature and conditioning time change with regard to log diameter sorting and conditioning parameters in the plywood and LVL mills. Through computer simulation and two case studies, the benefits of log diameter sorting were successfully demonstrated and the log diameter sorting breakpoint was further optimized. For spruce in mill A, compared to no diameter sorting (control), the optimum diameter sorting could result in about 28.8% reduction in heating time, and about 17.5% increase in equivalent log volume within the target temperature range. For lodgepole pine in mill B, in the summer, compared to no diameter sorting (control), the optimum log diameter sorting breakpoint was 9-in, resulting in about 15% reduction in equivalent heating time (no change in equivalent log volume). In the winter, the optimum log diameter sorting point was 8-in, leading to about 4.5% increase in equivalent heating time along with an 11.6% increase in equivalent log volume within the target temperature range. For plywood/LVL mills, specific benefits of log diameter sorting will include increasing the uniformity of log temperature distribution and thus veneer quality, and reducing heating time and thus energy consumption, increasing lathe efficiency, and reducing downtime and spin-out rate during peeling. Mill results will be collected to validate the benefits of optimum log diameter sorting in the new fiscal year.
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Real-time collection of temperature lapse rate data from aircraft for use in fire operations

https://library.fpinnovations.ca/en/permalink/fpipub53000
Author
Baxter, Greg
Thomasson, Jim
Date
February 2020
Material Type
Research report
Field
Fibre Supply
Author
Baxter, Greg
Thomasson, Jim
Date
February 2020
Material Type
Research report
Physical Description
23 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Aircraft
Atmosphere
Lapse rate
Temperature
Fire fighting
FPI TR
Sensors
Series Number
Technical Report ; TR 2020 n.24
Language
English
Abstract
FPInnovations investigated the possibility of collecting real time temperature-altitude data that could be used to determine the stability of the atmosphere. Unstable atmospheric conditions have been associated with erratic and extreme fire behaviour. An increased awareness of atmospheric stability conditions would provide fire managers an additional tool to plan firefighting activities. A firefighting aircraft with a specific sensor was sourced and two years of data was collected and analysed to determine if temperature profiles could be built using the data. Results show the data was sufficiently accurate and was collected at a frequency where temperature lapse rates can be calculated, and the stability of the atmosphere in the area of a fire could be determined.
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Le sechage a haute temperature : conditions de sechage et qualite du bois : rapport d'etape

https://library.fpinnovations.ca/en/permalink/fpipub41571
Author
Cloutier, Alain
Date
Mars 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Cloutier, Alain
Date
Mars 1992
Material Type
Research report
Physical Description
44 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood quality
Wood
Quality control
Qualitative analysis
Drying
High temperature
Series Number
E-1392
Location
Sainte-Foy, Québec
Language
French
Abstract
High Temperature Drying
Wood quality
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15 records – page 1 of 2.