CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Termografisk mätning av fuktkvotsspridningen i en kanaltork
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.ORCID iD: 0000-0002-5630-1377
Linnaeus University, Sweden.
2024 (Swedish)Report (Other academic)
Abstract [en]

Thermographic measurement of lumber moisture content in a progressive kiln This report presents the results of the work carried out in the project "Development of industrial thermal camera measurement for energy-efficient control of wood drying", a project funded by the Kamprad Family Foundation. The project developed, implemented, and evaluated an industrial measurement system for real-time determination of moisture content and moisture distribution in wood during an ongoing drying process. The work included the technical development of a measurement setup for feedback-type progressive kilns, the development of prediction models for wood moisture content, and the development of associated software. The measurement technology was based on thermographic images collected with a thermal camera mounted in the attic space above the passing lumber stacks, as well as information on the properties of the drying air. With knowledge of the wood's temperature state in combination with air temperature and humidity, the drying process could be monitored and evaluated in real time. The software for processing thermographic data, including an operator interface, was installed on a regular desktop computer in the operator room. During the project period, the measurement system was in continuous operation for about one year with only a few short interruptions for maintenance, system updates, and unplanned power outages. Relatively simple instrument maintenance was carried out about two to three times per year. The software's operator interface presented real-time thermographic images of the passing wood and diagrams of the wood's moisture content and distribution. Data collected was continuously and saved to enable long-term analysis. The conclusion is that the measurement system is a useful tool to estimate the moisture content, moisture distribution and inspect the kiln. This information can be used by the drying operator to assess the progress of the drying process and to manually correct the process. Since the measurements were carried out continuously and without either disturbing the production or requiring any extra manual handling by personnel, the measurement system can be considered to meet the requirements of being both non-contact and automatic. The measurement system offered a new way to control the drying process in a progressive lumber kiln with the goal of less over-drying, lower energy consumption, better quality and yield. The method has the potential to replace manual measurements, thus improving worker safety.

Place, publisher, year, edition, pages
RISE Research Institutes of Sweden , 2024. , p. 27
Series
RISE Rapport ; 2024:21
Keywords [en]
Kiln drying, Lumber drying, Thermal camera, Thermographic images, Moisture content, Moisture distribution, Real-time measurement, Prediction models, Software, Wood drying, Progressive dryer, Energy efficiency, Over-drying, Non-contact measurement, Maintenance
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:ri:diva-72322ISBN: 978-91-89896-68-0 (electronic)OAI: oai:DiVA.org:ri-72322DiVA, id: diva2:1844402
Funder
The Kamprad Family Foundation
Note

I följande rapport presenteras resultaten av det arbetet som genomförts i projektet ”Utveckling av industriell värmekameramätning för energieffektiv styrning av virkestorkning”, ett projekt finansierat av Familjen Kamprads Stiftelse.

Available from: 2024-03-13 Created: 2024-03-13 Last updated: 2024-04-04Bibliographically approved

Open Access in DiVA

fulltext(1608 kB)7 downloads
File information
File name FULLTEXT03.pdfFile size 1608 kBChecksum SHA-512
7b70dd308e9663bb8798ac05295b9db4a0961b8f358141b76c90052134e321e4c5458f4fc1da85079d3cd4d9bf8234063a29b6ed20d0752f14376f3406c02e24
Type fulltextMimetype application/pdf

Authority records

Scheepers, Gerhard

Search in DiVA

By author/editor
Scheepers, Gerhard
By organisation
Building and Real Estate
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 44 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 406 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf