Based on a dynamic frequency study, the thermal behavior of a wall consisting of a concrete slab contiguous to a panel of compressed rice straw is presented. The thermal behavior at the interface of the two materials is modeled by a thermal contact resistance. The insulating nature wall thus made is studied according the order magnitude of contact resistance: the perfect contact (Rc=0) extreme contact defects (Rc very high). The analysis of temperature and heat flow density curves show that the insulation effects are all the greater as the defects are important.
In this paper, we propose a method for determining the frequency band of study of a kenaf-based material in frequency modulation. The impacts of depth and heat exchange coefficients at the front and rear faces, are highlighted in the dynamic frequency regime.
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