Drying Technology & Equipment
About: Drying Technology & Equipment is an academic journal. The journal publishes majorly in the area(s): Wood drying & Moisture. It has an ISSN identifier of 1727-3080. Over the lifetime, 55 publication(s) have been published receiving 118 citation(s).
Abstract: This paper introduces some kinds of microencapsulation by spray drying and its application in food industry,such as food additive,nutrients and function materialsAmong the factors affect the preparation and quality of products,the selection of wall material and spray drying technology parameters are most importantConsidering microencapsulation by spray drying is effective,it is worth being used widely
Abstract: The definition and technological characteristic of combination drying were formulated in this workMeanwhile,this study introduced current research ad application for various combination drying methods inland and outlandFinally,existent problems and application prospects in the drying processing of Fruits fand Vegetables were discussed for the technology
Abstract: Using a two-dimensional pore network,a membrane fluidity mathematical model of a porous medium which calculated through finite-difference and successive over-relaxation method was established.The results show that:At a smaller capillary number,capillary membrane extent is larger,and the drying rates increase.Conversely,at larger capillary number,capillary membrane almost has no effect on it.Analysis show that when the capillary force controlling the entire drying process,the membrane fluidity is an important transmission mechanism.
Abstract: Thermal dehydration processes are highly energy-intensive and are found in almost all industrial sectors, accounting for 10 to 20 percent on national industrial energy consumption in developed countries. With escalating energy costs and need to mitigate environmental pollution due to emissions from combustion of fossil fuels, it is increasingly important to develop innovative drying technologies. Furthermore, drying also affects quality of the dried product due to physical and/or chemical transformations that may occur during the heat and mass transfer operation. With tens of thousands of products that are dried in hundreds of dryer types, it is a formidable task indeed to develop design and scale-up procedures of wide applicability. Attempts have been made over the past three decades to make fundamental and applied contributions to transport phenomena and material science aspects in drying of various forms of wet solids, pastes and liquids. This presentation will attempt to summarize the state-of-the-art as far as theoretical understanding of drying processes and provide examples of some new technologies being developed. Opportunities for challenging fundamental and modeling studies to enhance drying technologies will be identified. Illustrative results will be presented to show how mathematical modeling of spray, spouted bed and heat pump dryers can be utilized to develop new conceptual designs and to optimize operating conditions as a cost-effective route to intensify innovation in thermal dryer design.
Abstract: Larch lumbers with the dimension of 200mm×100mm×20mm are used as the experimental materials to find a correlation between drying rate and drying defects under the different absolute pressures of 0.02MPa, 0.04MPa, 0.06MPa and 0.08MPa and different temperatures of 60℃ and 80℃. Following conclusions are drawn: under the same absolute pressure, the drying rate of samples dried under 80℃ is 1.77～3.85 times as fast as that of samples under 60℃, and as the absolute pressure decreases,the drying rate increases; when the drying temperature increases, the increment speed of drying rate under the condition which the EMC is above FSP (fiber saturation point) is smaller than the condition which the EMC is under FSP, and the drying rate increases as the absolute pressure decreases; when the drying temperature is 60℃,the absolute pressure exerts relatively small influence on the drying rate and the increment speed of drying rate; the drying defect increases as the absolute pressure decreases or the drying temperature increases.