equilibrium moisture content


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equilibrium moisture content

[‚ē·kwə′lib·rē·əm ′mȯis·chər ‚kän·tent]
(physical chemistry)
The moisture content in a hydroscopic material that is being dried by contact with air at constant temperature and humidity when a definite, fixed (equilibrium) moisture content in the solid is reached.

equilibrium moisture content

The moisture content of a material that is stabilized at a given humidity and temperature.
References in periodicals archive ?
The 12[degrees]C difference in post-cure temperature had a measureable effect on all the diffusion behavior, including diffusivity, probability of molecular binding and unbinding, and equilibrium moisture content.
Average values of equilibrium moisture content of whole tomato fruits obtained at different temperatures of different saturated salt solutions are presented in Table 2.
It was therefore recognized that the samples would merely achieve a 'very high' moisture content, rather than an equilibrium moisture content (EMC) corresponding to 100% RH.
During the run the drying chamber temperature was varying in range of 30-40[degrees]C, but the drying condition expressed by the equilibrium moisture content (EMC) was constant, in the mean average of 10 %.
In addition, the published values are for a lower temperature (25[degrees]C) than used in the dryer for this study, and the wet-bulb depression and equilibrium moisture content are somewhat different at each of the four drying conditions, which changes the driving force for diffusion in addition to affecting the change in diffusion coefficient.
pre]: calculated values of the equilibrium moisture content (d.
Also, since nanoclay is hydrophilic, an increase in the rate of moisture absorption and the equilibrium moisture content of the WPC can be observed.
Thin layer drying is the process of removal of moisture from a porous media by evaporation, in which excess drying air is passed through a thin layer of the material until the equilibrium moisture content is reached.
As a standard practice, hygroscopicity of a product is measured in terms of equilibrium moisture content (or EMC).
The equilibrium moisture content was plotted as a function of water activity.
The properties that are determined include thermal conductivity, equilibrium moisture content, water vapor transmission characteristics, water absorption coefficient, moisture diffusivity, and airflow characteristics.
For example, when parts are conditioned in air at 73 F and 50% relative humidity, the dimensional growth resulting from water absorption will stabilize at the equilibrium moisture content.

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