The major drawback of microwave drying is non-uniform heating which may result in low quality dried products. To monitor the electromagnetic field distribution, a simulation process using Finite Element Methods was conducted. Three geometries different sizes were selected as cavity. Analysis variance for index showed that cavity size has significant effect ( p < 0.05) on index. Additionally, it...

DRYER SECTION OF A PAPER MILL M. Berrada, P. Radziszewski, M. E. Elkadiri Department of Applied Sciences, Université du Québec en Abitibi Témiscamingue, Rouyn Noranda, Québec, Canada, J9X 5E4 ABSTRACT This paper presents an application of the Internal Model Controller (IMC) to the heat exchange in a dryer section of paper product industry. A quantitative discussion on numerical control of multi...

Gasification has become an attractive technology that is capable of producing a rich syngas from a range of biomasses and other fuels. This syngas can then be further processed into liquid fuels through Fischer-Tropsch processes to provide an alternative to current fossil fuels or to provide local markets with a competitive fuel. The purpose of this study was to construct a four-inch bench scal...

in this study, a laboratory scale continuous plug flow fluidized bed dryer was designed and constructed. a backward-curved centrifugal fan with a 4 kw electromotor was selected based on the maximum pressure drop in the minimum fluidization state and the ability to produce the velocity required for fluidization of the most granular agricultural materials. the fluidization chamber was a rectangul...

In the present study, a fruit dryer system that is controlled based on fuzzy logic is presented. A laboratory scale cabinet was developed which includes four sensors in different lengths for monitoring the cabin temperature and humidity. Fuzzy base controller is a new monitoring technique in food industrial machines that utilize sensors captured values as its input parameters to make a suitable...

A series of experiments of shallow and strong smouldering fronts in boreal peat have been conducted under laboratory conditions to study the CO and CO2 emissions. Peat samples of 100 mm by 100 mm in cross section and 50 mm in depth were smouldered in the cone calorimeter apparatus. Two laboratory variables, moisture content and the external heat flux are varied over a wide range of values to es...

Investigations into drying kinetics of biomass in fluidized bed dryers are essential for the control processes, enhancing productivity and reducing energy consumption. However, there is limited research on characteristics at different bubble locations due to complex hydrodynamics around bubbles bed. In this paper, a new method proposed by combining electrostatic sensing digital imaging techniqu...