This study presents an integrated multiscale framework for modelling ionic diffusivity in unsaturated concrete accounting its microstructural features and 3D moisture distribution. The hierarchical microstructure of at from nano- to meso-scale is mimicked, based on which the fluid-solid interaction distribution pore network with various saturation levels are simulated using a lattice Boltzmann ...

Water flow into unsaturated porous media is governed by the Richards’ partial differential equation expressing mass conservation and Darcy’s laws. The may be written in three forms,where dependent variable pressure head or moisture content, constitutive relationships between water content allow for conversion of one form other. In present paper, “moisture-based" linearized applying Kirchhoff’s ...

Purpose – The purpose of this paper was to study the combined effect of hygro and thermo-mechanical behavior on a plastic encapsulated micro-electro-mechanical systems (MEMS) package during the reflow process after exposed to a humid environment for a prolonged time. Plastic encapsulated electronic packages absorb moisture when they are subjected to humid ambient conditions. Design/methodology/...

The surrounding (backfill) materials around the underground power cable systems are essential for dissipating heat away from it, during exertion phases. dissipation restrains thermal instability and risk of progressive drying backfill materials, thus reducing stress on cable. Thermal indicates reduction in properties (conductivity or diffusivity) due to migration moisture because accumulation. ...

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...

Osmotic dehydration is a process in which partial water is removed by immersion of water containing cellular solid in a concentrated aqueous solution of high osmotic media for a specified time and temperature. It has potential advantages of less heat damage, good blanching effect, less enzymatic browning, better retention of flavour and energy saving because no phase change occurs. Osmotic dehy...

White radish sliced at 4 mm thickness was dehydrated by traditional osmotic dehydration (TOD) with nine types of solutions prepared a randomized combining three levels concentration sucrose and sodium chloride. The mass transfer characteristics were evaluated through the moisture diffusivity (Dm) solid (Ds), fit model also estimated based on popular models, including Newton, Henderson, Pabis We...

The effect on Atlantic overturning of changes in zonal and meridional atmospheric moisture transports is investigated. Zonal transports are considered in terms of net moisture export from the Atlantic sector. Meridional transports are related to vigour of the global hydrological cycle. The equilibrium thermohaline circulation (THC) simulated with an efficient climate model is strongly dependent...