By Evangelos Tsotsas, Arun S. Mujumdar
The five-volume sequence presents a entire evaluate of all very important facets of drying know-how like computational instruments at assorted scales (Volume 1), sleek experimental and analytical options (Volume 2), product caliber and formula (Volume 3), strength rate reductions (Volume four) and strategy intensification (Volume 5).
Based on high-level state of the art effects contributed via across the world famous specialists within the a number of taken care of fields, this e-book sequence is the final word reference within the quarter of commercial drying. situated on the intersection of the 2 major techniques in sleek chemical engineering, product engineering and method structures engineering, the sequence goals at bringing concept into perform so as to enhance the standard of high-value dried items, retailer strength, and reduce the prices of drying processes.
In Volume 1, varied version forms for the drying of goods and the layout of drying methods (short-cut equipment, homogenized, pore community, and non-stop thermo-mechanical techniques) are handled, in addition to computational fluid dynamics, inhabitants balances, and method platforms simulation instruments. Emphasis is wear scale transitions.
Other Volumes and Sets:
Volume 2 - smooth Drying know-how: Experimental Techniques
Volume 2: Comprises experimental equipment utilized in quite a few industries and in learn for you to layout and regulate drying strategies, degree moisture and moisture distributions, symbolize particulate fabric and the interior micro-structure of dried items, and examine the habit of particle structures in drying gear. Key subject matters comprise acoustic levitation, near-infrared spectral imaging, magnetic resonance imaging, X-ray tomography, and positron emission tracking.
Volume three - sleek Drying expertise: Product caliber and Formulation
Volume three: Discusses how wanted homes of meals, biomaterials, lively pharmaceutical elements, and fragile aerogels will be preserved in the course of drying, and the way spray drying and spray fluidized mattress techniques can be utilized for particle formation and formula. equipment for tracking product caliber, akin to procedure analytical expertise, and modeling instruments, resembling Monte Carlo simulations, discrete particle modeling and neural networks, are awarded with actual examples from and academia.
Volume four - smooth Drying know-how: strength Savings
Volume four: Deals with the relief of strength call for in a number of drying procedures and components, highlighting the next themes: power research of dryers, effective solid-liquid separation strategies, osmotic dehydration, warmth pump assisted drying, zeolite utilization, sun drying, drying and warmth therapy for stable wooden and different biomass assets, and sludge thermal processing.
Volume five - approach Intensification
Volume five: Dedicated to method intensification via extra effective distribution and circulate of the drying medium, foaming, managed freezing, and the appliance of superheated steam, infrared radiation, microwaves, energy ultrasound and pulsed electrical fields. technique potency is taken care of along with the standard of delicate items, similar to meals, for various hybrid and mixed drying processes.
Available in print as 5 quantity Set or as person volumes. purchase the Set and store 30%!
Also on hand in digital formats.
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Additional info for Modern Drying Technology, Computational Tools at Different Scales
Sample text
However, the profiles of the local Nusselt number differ considerably (this point will be discussed further). 5 NuSt ¼ 0:82 Re0:5 Pr0:4 ; ð1:14Þ The average Nusselt number over the entire surface area for h/d < 5 is Nu ¼ 0:16 Re0:67 Pr0:4 ð1:15Þ (Attalla and Specht, 2009). 13), it is evident that the heat transfer in the nozzle array is higher than that of the single nozzle under the condition of similar Reynolds numbers. Regarding the average heat transfer, this increase is approximately 30%. In the following, the influence of the nozzle arrangement is considered in more detail.
Therm. Eng. 23: 859–870. , 2002. Investigation of impingement heat transfer coefficient at high temperatures. Drying Technol. 20(1): 211–222. Huber, A. , 1994. Effect of jet-jet spacing on convective heat transfer to confined, impinging arrays of axisymmetric jets. Int. J. Heat Mass Transfer 37: 2859–2869. , 1977. Heat and mass transfer between impinging gas jets and solid surface, in Advances in heat transfer, (eds J. R. Hartnett, T. F. Irvine), Academic Press, New York, USA, pp. 1–59. McDaniel, C.
Due to the strength of the steel material the gas temperatures are generally limited to 500 C. 19 20 1 Impinging Jet Drying Fig. 21 Influence of the drying rate and the velocity on the required air temperature. Fig. 22 Influence of the nozzle diameter. 23 show the specific energy consumption, the product temperature and the gas temperature as a function of the nozzle diameter and of the discharge velocity, respectively, as an example for the drying rate 10 g mÀ2 sÀ1. All three parameters decrease with decreasing nozzle diameter, while the gradients become larger with smaller nozzle diameters.