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...

This article describes the results of research conducted on drying different types apricots. Experiments were to study chemical composition apricots, quality finished product after in three ways, and duration drying. During period, biochemical fruits selected as raw materials was regularly analyzed. The highest indicator amount dry matter observed, three-year average indicators studied. Sugar i...

Drying is a necessary step before sewage sludge energetic valorization. Paddle dryers allow working with such a complex material. However, little is known about sludge flow in this kind of processes. This study intends to set up an original methodology for sludge residence time distribution (RTD) measurement in a continuous paddle dryer, based on the detection of mineral tracers by X-ray fluore...

Solid biofuels, such as bark, forest residues, sawdust, and wood chips are important mill fuels in the forest industry. They are combusted in combined heat and power plants (CHP-plants) to generate heat and electricity for pulp and paper making processes. Biofuels usually have high moisture content. The high moisture content decreases the effective heating value of fuel and makes the operation ...

A new type of spray dryer was developed for drying milk and the like efficiently. To this end, freely rotatable propellers powered with air-flow were placed in chamber to increase thermal efficiency product yield newly dryer. Milk samples dried both system a standard compare efficiencies yields each. It observed that had caused change flow direction air, decreased temperature walls, increased d...

There is a growing concern for adverse effects of untreated discharge from confined animal feedlot operations (CAFOs) in the Midwestern states. Ample data exists to show that the waste discharge from livestock operations is a major contributor to the contamination of surface water systems. The United States Environmental Protection Agency (US EPA) estimates that 41 percent of the total non-poin...