In this study, coriander leaves were subjected to three different drying techniques; direct sun, shade, and using an indirect solar dryer. the developed dryer, hot air obtained from a black-body collector was pushed by blower powered panel, sent chamber with multiple trays for thin-layer drying. Experiments conducted summer winter seasons, temperature relative humidity variations in measured da...

This paper discusses the modeling of unsteady-state mass diffusion under concentrationdependent diffusivity through an orthotropic medium. Historically, a simpler one-dimensional formulation with constant medium properties has been used, leading to approximate solutions. The present work uses a finite element formulation with finite difference discretization in time. The code includes an elemen...

Drying kinetics, ascorbic acid content (AAC), total phenolic (TPC), and antioxidant capacity (AC) of kiwifruits at different temperatures (60 ?C, 70 80) were investigated. The drying rate effective moisture diffusivity the highest 80 ?C. Additionally, Parabolic model best predicts experimental ratio 60 ?C while Page described curve On other hand, AAC, TPC, AC significantly influenced by tempera...

Abstract In this study, the drying kinetics, effective moisture diffusivity ( D eff ), specific energy consumption (SEC), colour, and shrinkage S b ) of pomegranate arils were compared when dried by convective (CV) microwave (MW) drying. The experiments performed at air temperature 50, 60, 70°C velocity 1 m/s for CV 270, 450, 630 W MW results showed that increasing power increased . calculation...

Abstract Epoxy resins are prone to serious moisture absorption inspite of their inherent advantages, which can be mitigated by the incorporation montmorillonite nanoclay that provide tortuous path flow moisture. Moisture studies epoxy clay nanocomposites is carried out, analyse effect content, immersion media and temperature. Nanocomposites prepared in 0.5, 1 1.5 wt% using magnetic stirring ult...

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...

This paper studies the influence of convection by periodic or cellular flows on the effective diffusivity of a passive scalar transported by the fluid when the molecular diffusivity is small. The flows are generated by two-dimensional, steady, divergence-free, periodic velocity fields.

Researching the thermal characteristic parameters of alfalfa is fundamental importance for accurately measuring heat transfer and distribution during compression process. Therefore, were measured using transient plane source method. Additionally, study examined impact moisture content particle size on alfalfa. The experimental results indicated that conductivity increased with higher content, i...

The use of agro-industrial residues are currently experiencing an undeniable revival interest in developing fully renewable insulation materials, that can be competitive price and performance, addition low embodied energy. Among these vegetable waste materials; wood chips. These latter light, compressible very sensitive to water, due their highly porous structure, which constantly modifies ther...