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11 records – page 1 of 2.

Flotation of western hemlock

https://library.fpinnovations.ca/en/permalink/fpipub52863
Author
Friesen, Charles
Date
May 2018
Material Type
Presentation
Field
Fibre Supply
PDF
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Abstract There was no change to the moisture content of any of the western hemlock log sample sets
Author
Friesen, Charles
Date
May 2018
Material Type
Presentation
Physical Description
12 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Trees
Moisture content
Water
Transport
Series Number
Report
Language
English
Abstract
There was no change to the moisture content of any of the western hemlock log sample sets during the study period between 1 Dec 2014 and 5 mar 2015. It seems that this lack of change is related to stability in environmental humidity experienced by the logs. Whether or not time since cutting influences the ability of Hw logs to change moisture content could not be conclusively determined by the study.
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Hemlock drying in coastal BC: 2015-2016

https://library.fpinnovations.ca/en/permalink/fpipub49817
Author
Friesen, Charles
Date
March 2018
Material Type
Research report
Field
Fibre Supply
, there are two distinct trajectories for hemlock wood moisture content, depending on if the tree was felled
Author
Friesen, Charles
Date
March 2018
Material Type
Research report
Physical Description
25 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Wood
Drying
British Columbia
Moisture content
FPI TR
Series Number
Technical Report ; TR 2018 n.14
Language
English
Abstract
Based on the data from this study and a literature review, there are two distinct trajectories for hemlock wood moisture content, depending on if the tree was felled before or after May. Hemlock trees felled before May gain the full benefit of spring drying according to the ambient conditions of their local micro-climate. Trees felled after May suffer from a physiological spike in moisture content that the tree generates to promote its growth and survive the summer soil drought.
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Hemlock drying update: 2016/17

https://library.fpinnovations.ca/en/permalink/fpipub49818
Author
Friesen, Charles
Date
March 2018
Material Type
InfoNote
Field
Fibre Supply
Author
Friesen, Charles
Date
March 2018
Material Type
InfoNote
Physical Description
2 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Wood
Drying
British Columbia
Moisture content
Series Number
InfoNote ; 2018 n. 7
Language
English
Abstract
The problem of second-growth western hemlock (Tsuga heterophylla) sinking when watered continues to plague the coastal logging industry of British Columbia. A study conducted by FPInnovations in 2015-16 concluded that felled hemlock logs took two distinct trajectories in their drying patterns through time, depending on whether they were felled before or after May.
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Humidimètres pour la biomasse

https://library.fpinnovations.ca/en/permalink/fpipub39765
Author
Volpé, Sylvain
Date
February 2014
Material Type
Research report
Field
Fibre Supply
biofuels – Determination of moisture content – Oven dry method – Part 2: Total moisture – Simplified
Author
Volpé, Sylvain
Date
February 2014
Material Type
Research report
Physical Description
17 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Biomass
Moisture content
Sampling
Measurement
Heat
Advantage
Series Number
Avantage ; Vol. 14, No. 5
Language
English
ISSN
14933381
Abstract
One of the challenges to the use of biomass in heat applications is to find a suitable technology to take quick and accurate moisture content (MC) measurements of comminuted forest biomass. In this study, we tested three difference technologies (electric, nuclear and infrared) and five different tools. Of the three technologies tested, electric is the most promising. It is usually inexpensive (<$1000), requires small-sized samples (10 L), is fast to read (<1 minute) and is relatively accurate with more than 70% of measurements within 5% MC of the oven-dried method.
BIOMASS
MOISTURE CONTENT
TECHNOLOGY
ELECTRIC ANALYZERS
NUCLEAR RADIATION
INFRARED DETECTORS
ACCURACY
MEASUREMENT
TIME
Sample size
Abstract
L’une des difficultés associées à l’utilisation de la biomasse forestière broyée pour produire de la chaleur consiste à trouver une technologie convenable pour prendre rapidement des mesures précises de la teneur en humidité (TH). Pour la présente étude, nous avons mis à l’essai trois technologies (électrique, nucléaire et infrarouge) et cinq appareils différents. Parmi les trois technologies, c’est la technologie électrique qui est la plus prometteuse. Les appareils sont généralement peu coûteux (< 1000 $), nécessitent des échantillons de petite taille (10 L), donnent les résultats rapidement (<1 minute) et sont relativement précis, plus de 70 % des mesures se situant à plus ou moins 5 % de la TH obtenue par la méthode de séchage à l’étude.
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Matapedia roundwood tarping trials

https://library.fpinnovations.ca/en/permalink/fpipub39799
Author
Volpé, Sylvain
Date
March 2014
Material Type
Research report
Field
Fibre Supply
. ........................................................................................ 5 Figure 3. Disc samples to determine the initial moisture content in January 2012
Author
Volpé, Sylvain
Date
March 2014
Material Type
Research report
Physical Description
12 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Biomass
Moisture content
Drying
Storing
Logs
Advantage
Series Number
Advantage ; Vol. 14, No. 8
Language
English
ISSN
14933381
Abstract
The effects of natural drying in relation to the use of tarps on the moisture content of stacked softwood roundwood were examined. Biomass quality logs were stored for a period of 15 months in a mill yard in the Bas Saint-Laurent region of Quebec. The results of the study showed that the roundwood dried naturally during the summer season with moisture content at the end of the season below 30%. Tarping the roundwood piles during the fall and winter prevented an average increase in moisture content of 6%.
Abstract
Cette étude d'entreposage de la biomasse forestière visait à évaluer les effets du séchage naturel par rapport à l'utilisation de bâches sur la teneur en humidité de bois rond résineux au cours d'une période de 15 mois. Des billes de qualité biomasse ont été empilées dans un parc d'usine de la région du Bas-Saint-Laurent, au Québec. Les résultats de l'étude ont démontré que la biomasse séchait très bien naturellement pendant l'été avec un taux d'humidité en fin de la saison estivale en-dessous de 30%. La bâchage des empilements de biomasse au cours de l'automne et de l'hiver a permis d'éviter une augmentation moyenne du taux d'humidité de 6 %.
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Moisture meters from biomass

https://library.fpinnovations.ca/en/permalink/fpipub39754
Author
Volpé, Sylvain
Date
November 2013
Material Type
Research report
Field
Fibre Supply
Author
Volpé, Sylvain
Date
November 2013
Material Type
Research report
Physical Description
16 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Biomass
Moisture content
Sampling
Measurement
Heat
Advantage
Series Number
Advantage ; Vol. 14, No. 5
Language
English
ISSN
14933381
Abstract
One of the challenges to the use of biomass in heat applications is to find a suitable technology to take quick and accurate moisture content (MC) measurements of comminuted forest biomass. In this study, we tested three difference technologies (electric, nuclear and infrared) and five different tools. Of the three technologies tested, electric is the most promising. It is usually inexpensive (<$1000), requires small-sized samples (10 L), is fast to read (<1 minute) and is relatively accurate with more than 70% of measurements within 5% MC of the oven-dried method.
BIOMASS
MOISTURE CONTENT
TECHNOLOGY
ELECTRIC ANALYZERS
NUCLEAR RADIATION
INFRARED DETECTORS
ACCURACY
MEASUREMENT
TIME
Sample size
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Observations of the Peterson Pacific DDC 5000 log delimber-debarker-chipper

https://library.fpinnovations.ca/en/permalink/fpipub39930
Author
Araki, Dennis
Date
September 1994
Material Type
Research report
Field
Fibre Supply
Author
Araki, Dennis
Date
September 1994
Material Type
Research report
Physical Description
8 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Costs
Chips
Productivity
Bark
Processing
Machines
Moisture content
Alberta
Series Number
FO Technical Note Wood Harvesting ; TN 214
Language
English
Abstract
In-woods chipping
In-woods debarking
Satellite operations
Software
COSTS
Fuji/King debarker
Bruks 1512 drum chipper
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Preventing sinking of western hemlock. best practices guide

https://library.fpinnovations.ca/en/permalink/fpipub53003
Author
Friesen, Charles
Date
January 2020
Material Type
Guide
technical report
Field
Fibre Supply
-222-5622 charles.friesen@fpinnovations.ca 3 Western hemlock can have higher moisture content than
Author
Friesen, Charles
Date
January 2020
Material Type
Guide
technical report
Physical Description
12 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Trees
Moisture content
Water
Transport
Series Number
Special Publication ; SP 538
Language
English
ISBN
9780864885890
ISSN
19250509
Abstract
Hemlock can have higher moisture content than most other native trees, causing them to sink. Hemlock lumens have large pits (valves) that allow easy transport of water into the wood. Bigger rings = bigger lumens. Younger hemlock or hemlock tops are more susceptible to sinking. The bigger the rings the more likely to take on water.
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Sour felling in Alberta

https://library.fpinnovations.ca/en/permalink/fpipub43208
Author
Forrester, Patrick
Date
1989
Material Type
Research report
Field
Fibre Supply
Author
Forrester, Patrick
Date
1989
Material Type
Research report
Physical Description
4 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Harvesting
Moisture content
Series Number
Technical Notes
Language
English
Abstract
During June and July 1989 FERIC understock a project to determine the extent of moisture loss in felled trees in East-Central Alberta. This project was funded by Alberta Forestry, Lands and Wildlife and Alberta-Pacific Forest Industries.
Sour felling
MOISTURE CONTENT
ALBERTA
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Tarping of pulp log decks to maintain low moisture content: interim report

https://library.fpinnovations.ca/en/permalink/fpipub40007
Author
Spencer, Stuart
Date
April 2015
Material Type
Research report
Field
Fibre Supply
Author
Spencer, Stuart
Date
April 2015
Material Type
Research report
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Biomass
Moisture content
Drying
Storing
Logs
FOP Technical Report
FPI TR
Series Number
Technical Report ; TR 2015 n.14
Language
English
Abstract
FPInnovations, in cooperation with BC Timber Sales and Coast Tsimshian Resources, is in the process of performing a tarping trial in an attempt to maintain low moisture content of pulp logs in the Terrace region.
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11 records – page 1 of 2.