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Moisture transport coefficient of pine from gamma ray absorption measurements

Kumaran, M. K., Mitalas, G. P., Kohonen, R. and Ojanen, T.
1989
American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, v 123, p 179-183

Kumaran, M. K., Mitalas, G. P., Kohonen, R. and Ojanen, T., (1989), "Moisture transport coefficient of pine from gamma ray absorption measurements", American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, v 123, p 179-183.
Abstract:
The applicability of a test methodology for the determination of total moisture diffusivity of various building materials, for a wide range of moisture content, is examined. A test specimen of eastern white pine is subjected to an isothermal moisture intake process. The transient moisture distribution in the specimen during the process is determined, at different stages of the process, using a gamma-ray equipment. Boltzmann transformation of the experimental data results in a single moisture distribution curve, characteristic of the specimen. This characteristic curve is analyzed for total moisture diffusivity of the test specimen for a range of moisture content between 0 and 0.488 g cm-3.
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  • This link has not been checked.IRC: Institute for Research in Construction
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Related Concepts

Author Information and Other Publications Notes
Kumaran, M. K.
Building Performance Laboratory, Institute for Research in Construction, National Research Council Canada
  1. A comparison of empirical indoor relative humidity models with measured data
  2. A logical extension of the ASTM Standard E96 to determine the dependence of water vapor transmission on relative humidity
  3. A methodology to develop moisture management strategies for wood-frame walls in North America: application to stucco-clad walls
  4. A thermal and moisture transport property data base for common building and insulating materials (final report)
  5. Application of gamma-ray spectroscopy for determination of moisture distribution in insulating materials
  6. Benchmarking of the advanced hygrothermal model hygIRC with mid scale experiments
  7. Building envelope design, Part 2: estimating field performance of thermal insulation
  8. Criteria for unaccesseptable damage on wood systems
  9. Determination of equilibrium moisture content of building materials: some practical difficulties
  10. Durability assessments of wood-frame construction using the concept of damage-functions
  11. Effect of exfiltration on the hygrothermal behaviour of a residential wall assembly: results from calculations and computer simulations
  12. Final Report, IEA-Annex 24, Task 3: Material Properties
  13. Indoor and outdoor weather analysis tool for hygrothermal modelling
  14. Influence of material properties on the moisture response of an ideal stucco wall: results from hygrothermal simulation
  15. In-Situ performance evaluation of exterior insulation basement systems (EIBS) - spray polyurethane foam: summary report
  16. MEWS methodology for developing moisture management strategies: application to stucco-clad wood-frame walls in North America
  17. Modeling heat, air and moisture transport through building materials and components
  18. Moisture buffering capacities of five North American building materials
  19. Moisture diffusivity of building materials from water absorption measurements
  20. On implementing experimental biological damage-functions models in durability assessment systems
  21. Prediction of moisture response of wood frame walls using IRC's advanced hygrothermal model (hygIRC)
  22. Protecting the long-term performance of building envelope components
  23. Report from Task 4 of MEWS Project - Environmental Conditions, Final Report
  24. Report from Task 8 of MEWS Project - MEWS Methodology for Developing Moisture Management Strategies - Application to Stucco Clad Wood-Frame Walls in North America
  25. Taking guess work out of placing air/vapor barriers
  26. Three-dimensional analysis of thermal resistance of exterior basement insulation systems (EIBS)
  27. Use of hygrothermal numerical modeling to identify optimal retrofit options for high-rise buildings
  28. Vapor transport characteristics of mineral fiber insulation from heat flow meter measurements
  29. Water vapor transmission and moisture accumulation in polyurethane and polyisocyanurate foams  
Mitalas, G. P.
     
Kohonen, R.
Reijo O. Kohonen VTT Building Technology, Espoo.
  1. Modeling and calculating moisture transfer in building materials
  2. Modeling heat, air and moisture transport through building materials and components  
Ojanen, T.
Tiiomo Ojanen Senior research scientist VTT Building Technology, Finland.
  1. Drying capabilities of wood frame walls with wood siding
  2. Effect of exfiltration on the hygrothermal behaviour of a residential wall assembly: results from calculations and computer simulations
  3. Heat and mass transfer between indoor air and a permeable and hygroscopic building envelope: part I -- field measurements
  4. Heat and mass transfer between indoor air and a permeable and hygroscopic building envelope: part II --verification and numerical studies
  5. Improving indoor climate and comfort with wooden structures
  6. Improving the drying efficiency of timber frame walls in cold climates, by using exterior insulation
  7. Integration of simplified drying tests and numerical simulation in moisture performance analysis of the building envelope
  8. Measuring and modeling vapor boundary layer growth during transient diffusion heat and moisture transfer in cellulose insulation
  9. Modeling heat, air and moisture transport through building materials and components
  10. Moisture and bio-deterioration risk of building materials and structuresL?hdesm?ki
  11. Moisture buffer value of building materials
  12. Moisture Buffer Value of Materials in Buildings
  13. Moisture performance of an airtight, vapor-permeable building envelope in a cold climate
  14. Numerical simulation of mould growth in timber frame walls
  15. Thermal and moisture performance of a sealed cold-roof system with a vapor-permeable underlay
  16. Towards modelling of decay risk of wooden materials  


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