نتایج جستجو برای: effective moisture diffusivity
تعداد نتایج: 728705 فیلتر نتایج به سال:
In this work, we tried to evaluate mass transfer during a combined infrared-vacuum drying of kiwifruits. Infrared radiation power (200-300 W) and system pressure (5-15 kPa), as drying parameters, are evaluated on drying characteristics of kiwifruits. Both the infrared lamp power and vacuum pressure affected the drying time of kiwifruit slices. Nine different mathematical models were evaluated f...
Fiber-reinforced composite laminates are often used in severe environments such as high temperature and humidity conditions. Therefore, it is of practical interest to establish a simple but robust method to determine material properties that define the hygrothermal behavior of composites under various conditions. In this article a novel inverse analysis approach is presented to identify the dif...
The thin-layer behavior of by-products from olive oil production was determined in a solar dryer in passive and active operation modes for a temperature range of 20-50 °C. The increase in the air temperature reduced the drying time of olive pomace, sludge and olive mill wastewater. Moisture ratio was analyzed to obtain effective diffusivity values, varying in the oil mill by-products from 9.136...
In this study three types of Fibre reinforced composites Glassfibre/epoxy, Glassfibre/vinylester and Glassfibre/polyester resin are fabricated using Hand lay-up process and compacted in a Hotpress. The specimens of these three types of laminates were studied for moisture diffusion at two elevated hotwater temperatures of 90C and 60C to study the kinetics by computing the Diffusion coefficients ...
Convective hot air drying of potato slabs and the effects of drying air temperature and slab thickness have been investigated using a batch tray dryer. The temperature of drying chamber varied in four levels (50, 60, 70 and 80°C) and the slab thickness changed in three levels (0.5, 1 and 1.5 m). For the prediction of effective moisture diffusivity (D ), the conventional Fick’s diffusion model w...
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