Download PDF by Tadeusz Kudra: Advanced drying technologies

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 may be the least scrutinized approach on the microscopic point. but within the wake of today’s international power main issue, drying learn and improvement is at the upward push.

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

Draws at the Authors’ 60+ Years of mixed Experience

Fueled via the present strength situation and starting to be buyer call for for more desirable caliber items, this completely up-to-date source addresses state-of-the-art drying applied sciences for various fabrics similar to high-valued, heat-sensitive prescription drugs, nutraceuticals, and a few meals. It additionally introduces leading edge recommendations, similar to heat-pump drying of meals, which permit either commercial perform and learn and improvement initiatives to save lots of power, lessen 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 help researchers in turning the laboratory curiosities of at the present time into the innovative novel drying applied sciences of tomorrow.

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Example text

Clearly, the material temperature is higher than the respective wet bulb temperature. At the same time, the material temperature is lower than the outlet air temperature, and this difference tends to be larger at lower inlet air temperatures. 4 Material temperature versus exhaust and inlet air temperatures. ) Drying on Inert Particles 35 kowski (1992), who found the difference between the particle surface temperature and the wet bulb temperature to be at least 20°C. , 1998) report on fluid bed temperatures lower by 15°C than the temperature of the outlet air.

4. 5. 6. 4 TRENDS IN DRYING RESEARCH AND DEVELOPMENT It is extremely difficult, if not impossible, to make definitive statements about the direction drying technologies will take in the next several decades. Most of the developments in this field have occurred in the last three or four decades. As the general standard of living around the world rises along with the population of the world, it is obvious that the need for drying technologies will increase. New demands will be made on better energy efficiency, lower environmental impact via legislative measures, utilization of renewable energy for drying, better-quality products at lower total costs.

Part II Selected Advanced Drying Technologies This section covers a number of relatively new but not commonly used drying techniques and technologies. Most have found commercial application for selected products in some countries. , superheated steam drying, drying of suspensions on inert particles, heat pump drying, etc. With greater awareness and industrial interest, several of these will become common technologies within the next decade or two. 1 INTRODUCTION Drying of liquid materials on inert solid carriers is a relatively new commercial technology to produce powders from solutions, suspensions, slurries, and pastes.

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