Thin-layer moisture adsorption tests were conducted by exposing com kernels to different air relative humidities (RH of 75, 80, and 90%) and temperatures (25, 30, 35, and 40°C). A two-dimensional finite element model was developed to simulate moisture diffusion into a com kernel during adsorption. The finite element model satisfactorily predicted experimental moisture ratio of corn samples and ...

The determination of the moisture diffusivity in capillary range is studied for rammed earth building materials, using X-ray method. To prevent liquefaction and expansion these materials during absorption test, a brick wick paper are added as lower sample parts confining sealing utilised. Since bring about composite case, compatibility with Boltzmann transformation must be redeveloped. It found...

Drying kinetics of Cape gooseberry was studied and modeled during processing at four temperatures (60, 70, 80 and 90C). Desorption isotherm was obtained at 40C giving a monolayer moisture content of 0.086 g water/g d.m. Experimental drying curves showed that drying process took place only in the falling rate period. Several thin-layer drying models available in the literature were evaluated bas...

A unique methodology due to the effect of stochastic heating is utilized study Moisture Diffusivity influence an elastic semiconductor medium under photo-thermoelasticity theory. Accurately, random processes are applied at boundary medium. The governing equations expressed in one-dimensional form (1D). conditions considered random; additional noise regarded as white noise. problem set up invest...

Silica aerogels prepared by the sol-gel process are often used as solid desiccants in enthalpy wheels for dehumidifying ventilation air in air-conditioning systems. These hygroscopic materials have good moisture adsorption and desorption characteristics due to their porous structure. The current study is focused on the evaluation of the mass diffusivity of solid silica aerogels and silica aerog...

Long term moisture exposure has been shown to affect the mechanical performance of polymeric composite structures. This reduction in mechanical performance must be accommodated for during product design in order to ensure long term structure survival. In order to determine the longterm moisture effects on composite components, representative parts are commonly tested after having been exposed t...