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Title: Using a quasi-heat-pulse method to determine heat and moisture transfer properties for porous orthotropic wood products or cellular solid materials

Source: Journal of thermal analysis and calorimetry. Vol. 83 (2006): pages 97-106

Author(s)Dietenberger, M. A.

Publication Year: 2006  View PDF »

Category: Journal Articles

Abstract: Understanding heat and moisture transfer in a wood specimen as used in the K-tester has led to an unconventional numerical solution arid intriguing protocol to deriving the transfer properties. Laplace transform solutions of Luikov's differential equations are derived for one-dimensional heat and moisture transfer in porous hygroscopic orthotropic materials and for a gradual finite heat pulse applied lo both surfaces of a flat slab. The K- tester 637 (Lasercomp) supplies a quasi-heat-pulse to both sides of a 2-ft-square specimen and records precise signals as function of time from surface thermocouples and heat flux thermopiles. We obtained transfer properties for moist and oven-dried redwood lumber flooring.

Keywords: Cellular solid materials, heat/moisture transfer properties, Luikov equations solutions, porous orthotropic wood

File size: 182 kb(s)

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RITS Product ID: 22536
Current FPL Scientist associated with this product
Dietenberger, Mark A.
Research General Engineer

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