in this study, the longitudinal shrinkage behavior of knitted fabrics during drying has been studied. in this context, a model is presented to predict the longitudinal shrinkage of plain knitted fabric during drying process. in order to model the shrinkage behavior, a 1dof model consists of a mass, a linear spring and a linear damper have been used. in presented model the time-varying mass is c...

Drying experiments have been carried out with model soils made of different pastes filling granular packings. A detailed information concerning the time evolution of the water saturation distribution inside the sample was obtained from magnetic resonance imaging measurements. This study makes it possible to understand the physical origin of the drying characteristics of these materials. The dry...

The temperature influence on the drying and swelling kinetics of ultrathin poly(Nisopropylacrylamide) gel film were studied by in-situ interferometry. The drying rate is greatly dependent on temperature. When T j 31 °C, the original gel film was swollen and contained more than 99% of water before drying. Our results showed that the initial drying rate was a constant. However, it became faster a...

The objective of this study was to develop a model for drying characteristic curve of Spinach in Universal Hot Air Oven .Drying experiment were conducted using a constant air velocity2.2m/s and three drying air temperature of 55, 65, and75 o C with two pretreatment conditions and load densities that are given respectively condition (Blanched and Unblanched) load density (3kg/m 2 , 3.5 kg/m 2 )....

in this research, the influence of red heartwood formation in iranian beech (fagus orientalis l.) on its drying behavior was studied. radial variation (from pith to bark) in specific gravity, green moisture content, drying rate, transverse shrinkage and casehardening in a beech log containing red heartwood was investigated. all samples were dried in an experimental kiln under a constant tempera...

Open sun drying (OSD) is the most common method of crop drying in developing countries. Despite several disadvantages, it is widely practiced because it is a simple way of drying. Crop temperature, temperature around the crop, solair temperature, and rate of moisture evaporation are the important parameters in OSD. The thermal behavior of OSD of green chillies, green pea, white gram (kabuli cha...

In this study, an air heated solar collector (AHSC) dryer was designed to determine the drying characteristics of the pear. Flat pear slices of 10 mm thickness were used in the experiments. The pears were dried both in the AHSC dryer and under the sun. Panel glass temperature, panel floor temperature, panel inlet temperature, panel outlet temperature, drying cabinet inlet temperature, drying ca...