|Series||DE87 004107, DOE/CE/40738-T2|
This book presents a systematic thermomechanical theory of drying. The book has an interdisciplinary character and combines the knowledge of Chemical Engineering and Mechanics of Continua. It contents a unified approach to the heat and mass transfer in drying processes as well as a precise analysis of all local drying effects. The intrinsic “ﬁngerprint” of the drying phenomena can, in principle, be obtained through just one accurate drying experiment. The REA is easy to use with the guidance of featured application examples given in this book. ‘An interesting book on a novel approach to mathematical modelling of an important Size: KB. in focus when it comes to batch drying of chemical and phar-maceutical products. Waldner Process Systems‘ innovative drying technology meets these demanding requirements. In focus: Your product You deﬁ ne the product that has to be dried and let Wald-ner Process Systems engineers develop the solution to your problem. The drying effect of this new process is compared with that obtained from forced-air drying assisted by air-bome ultrasonic radiation and from a conventional hol-air drying. The results show that by using the new technology and procedure it is possible to reduce dramatically the treatment time and it is relatively easy to reach a final moisture Cited by:
Drying occurs by effecting vaporization of the liquid by supplying heat to the wet feedstock. As noted earlier, heat may be supplied by convection (direct dryers), by conduction (contact or indirect dryers), radiation or volumetrically by placing the wet material in a microwave or radio frequency electromagnetic Size: KB. The potential of power ultrasound involves physical and chemical processes. Physical processes are mainly ascribed to mechanical effects of the high-intensity waves in any medium while chemical processes refer to chemical effects induced by ultrasonic cavitation in liquids. The latter processes are included in the term of by: Drying and ripening – a basic processes in the production of dry-cured products the tissues of the product occur dur- ing the drying and ripening stages. Books at Amazon. The Books homepage helps you explore Earth's Biggest Bookstore without ever leaving the comfort of your couch. Here you'll find current best sellers in books, new releases in books, deals in books, Kindle eBooks, Audible audiobooks, and .
Air convection ﬁ lm drying processes often occur in three distinct regimes: the rising rate, constant rate, and diffusion modes, as described below. For aqueous systems most of the drying takes place in the constant rate mode of operation, however for solvent coatings, most of the drying takes place in the diffusion mode. Vacuum freeze drying is best suited for large numbers of wet books and records as well as for materials with water-sensitive inks and coated paper. Frozen books and records are placed in a vacuum chamber. A vacuum is pulled and a source of heat introduced while the overall temperature remains below 32° F. The materials are dried by a process. Fundamental aspects, drying in various industrial sectors: drying of solids, experimental techniques, basic process calculations, transportproperties in the drying solids, rotary drying, horizontal vacuum rotary dryers, fluidized bed drying drum dryers, industrial spray drying, freeze drying, microwave and dielectric drying, solar drying, spouted bed drying, impingement drying, flash drying 4/5(2). The drying process can be regarded as a preservation method in which water is removed from the product. The shelf life of the product is increased due to the reduced water activity. As the mass transfer velocity of water is an important parameter for the drying process, higher diffusion rates result in a lower drying temperature and drying time Cited by: 9.