Advanced drying technologies by Tadeusz Kudra

By Tadeusz Kudra

Presents Drying Breakthroughs for an Array of Materials

Despite being one of many oldest, so much energy-intensive unit operations, business drying is likely to be the least scrutinized strategy on the microscopic point. but within the wake of today’s international strength concern, drying study and improvement is at the upward push.

Following within the footsteps of the generally learn first variation, Advanced Drying applied sciences, moment Edition is the direct end result of the new out of the ordinary development in drying literature and new drying undefined. This version offers an evaluative assessment of recent and rising drying applied sciences, whereas putting better emphasis on making the drying approach extra strength effective within the green age.

Draws at the Authors’ 60+ Years of mixed Experience

Fueled by means of the present strength hindrance and becoming buyer call for for more desirable caliber items, this completely up-to-date source addresses state of the art drying applied sciences for varied fabrics comparable to high-valued, heat-sensitive prescribed drugs, nutraceuticals, and a few meals. It additionally introduces leading edge suggestions, similar to heat-pump drying of meals, which permit either business perform and study and improvement initiatives to save lots of strength, decrease carbon footprints, and hence increase the base line.

Four New Chapters:

  • Spray-Freeze-Drying
  • Fry Drying
  • Refractance Window Drying
  • Mechanical Thermal Expression

Requiring no past wisdom of chemical engineering, this single-source reference may still support researchers in turning the laboratory curiosities of this present day into the progressive novel drying applied sciences of tomorrow.

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Extra resources for Advanced drying technologies

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Impulse drying/Condebelt drying of paper (also need technology-push) Combined spray-fluid bed dryers—to improve economics of spray drying Intermittent drying—enhance efficiency Technology originally developed for other applications applied to drying. Developed to meet current or further market demand. 24 Chapter 3 distribution of grouping in just two types is not possible since a ‘‘marketpulled’’ development may require a ‘‘technology-push’’to succeed. 3 DEVELOPMENT OF IMPROVED DRYING TECHNOLOGIES New developments in any field may occur as a result of either an evolutionary or revolutionary process.

6 Some configurations of the impinging-stream reactors. 5–15 50–2000 up to 5000 1500–30,000 up to 1700 1–10 half of its oscillatory flow. 1). The unique characteristics of impinging streams also offer special advantages for thermal processing. An example is the intermittent drying that takes place when the opposing streams are supplied at different temperatures. Thus, particles are heated and cooled periodically when oscillating between hot and cold gas streams. Another example is puffing of grains (thermal micronizing), which occurs when wet grain is subject to high moisture and temperature gradients.

The cylindrical drying chamber has a centrally located vertical screw conveyor. When rotated at 10 to 30 rev/min, this conveyor transports inert particles from a disengaging zone at the grid area to the top of the bed, where they are coated with the feed by rolling in the liquid on a collar. 8 m high. Drying air is supplied to the falling bed by radial air inlet ducts located above the bed bottom. Hence, the hot air is split into two fractions: the upward stream, which evaporates most of water and thus cools down almost to the dew point; and the downward one (about 10% of the total inlet air), which provides finish drying.

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