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Effect of initial conditions, boundary conditions and thickness on the moisture buffering capacity of spruce plywood

Osanyintola, O. F., Talukdara, P. and Simonson, C. J.
2006
Energy and Buildings, 38(10): 1283-1292


Osanyintola, O. F., Talukdara, P. and Simonson, C. J., (2006), "Effect of initial conditions, boundary conditions and thickness on the moisture buffering capacity of spruce plywood", Energy and Buildings, 38(10): 1283-1292.
Abstract:
In this paper, the moisture buffering capacity of spruce plywood is measured by recording the change in mass of a test specimen when the air relative humidity is changed between 33% RH and 75% RH. The aim is to represent diurnal cycles in indoor humidity with 33% RH maintained for 16 h and 75% RH maintained for 8 h. Measurements are taken using two different apparatuses, which provide different convective transfer coefficients between the air and the plywood, and the results are compared to a numerical model for validation. The validated numerical model is then used to investigate the effect of initial conditions, boundary conditions and thickness on the moisture buffering capacity of plywood. The results show that the buffering capacity of plywood depends on the initial conditions and thickness of the plywood as well as the surface film coefficient and humidity cycle.

O.F. Osanyintola, Transient moisture characteristics of spruce plywood, M.Sc. Thesis, Department of Mechanical Engineering, University of Saskatchewan, 2005, http://library.usask.ca/theses/available/etd-12222005-082100/.


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Author Information and Other Publications Notes
Osanyintola, O. F.
  1. An experimental data set for benchmarking 1-D, transient heat and moisture transfer models of hygroscopic building materials. Part II: Experimental, numerical and analytical data
  2. Moisture buffering capacity of hygroscopic building materials: Experimental facilities and energy impact  
Talukdara, P.
     
Simonson, C. J.
  1. An experimental data set for benchmarking 1-D, transient heat and moisture transfer models of hygroscopic building materials. Part II: Experimental, numerical and analytical data
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  5. Integration of simplified drying tests and numerical simulation in moisture performance analysis of the building envelope
  6. Measuring and modeling vapor boundary layer growth during transient diffusion heat and moisture transfer in cellulose insulation
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  8. Moisture performance of an airtight, vapor-permeable building envelope in a cold climate
  9. Moisture, thermal and ventilation performance of Tapanila ecological house  



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