the canola drying process was investigated using three laboratory scale dryers connected to a computer which continuously recorded the drying processes of each unit. a completely randomized design (crd) with three replications was used for the statistical analysis. the effect of temperature (40°, 50°, 60°c) and air velocity (1, 2 m/s) on the drying kinetics of a monolayer were studied. the effe...

This article presents an experimental study on the hygric performance of brick masonry with a special focus hydraulic characterization brick-mortar interface. The behavior was studied at level constituent materials as well composite scale. An extruded fired-clay and two types mortar –Portland cement natural lime mortar– were chosen target materials. properties determined following prescribed pr...

INTRODUCTION Two factors have major influences on maple sap yields: vacuum level achieved at the taphole and taphole drying. Vacuum controls sap yield by increasing the pressure differential between the inside of the tree and the inside of the tubing system, resulting in higher sap flows from tapholes than would be found without vacuum (Heiligmann et al. 2006, Chapeskie and Staats 2006, Wilmot ...

In this study, whole lemons were dried using a laboratory convective hot air dryer and the effects of drying temperature on dehydration behaviour and mass transfer characteristics of the lemons were investigated. The drying experiments were conducted using air temperatures of 50, 60 and 75 °C and air velocity of 1 m/s. It was observed that the drying temperature affected the drying time and...

In order to obtain the best physicochemical and most appealing honey powder as possible, this research assessed three procedures (spray drying, vacuum drying freeze drying) well carrier agents (Arabic gum, whey protein isolate maltodextrin) for dehydrating ling-heather honeys ( Calluna vulgaris (L.) Hull). Using each agent, both were that provided higher recoveries (76%–98%) final concentration...

The drying kinetics of a porous medium is classically described in three main periods, which depend on the interplay between the external and internal mass transfers during evaporation. The first period is described as essentially depending on the external mass transfer, whereas the third period is dominated by the internal mass transfer. The second period is a crossover period. We show experim...

Application of pulsed electric field prior to vacuum drying: Effect on drying time and quality apple tissue | Aleksandra Matys, Dorota Witrowa-Rajchert, Oleksii Parniakov, Artur Wiktor Agricultural Journals

The Paper machine vacuum system is an important operation for dewatering of wet web to increase percentage solids in web. There are various models available to assess the influence of vacuum on the above parameters. In this present investigation the steady state model is discussed for estimating optimum vacuum load in flat boxes of Fourdrinier paper machine as the flat boxes are the main compon...