By Evangelos Tsotsas, Arun S. Mujumdar

The five-volume sequence offers a entire review of all very important facets of drying know-how like computational instruments at varied scales (Volume 1), smooth experimental and analytical concepts (Volume 2), product caliber and formula (Volume 3), power rate reductions (Volume four) and method intensification (Volume 5).

Based on high-level state-of-the-art effects contributed via across the world well-known specialists within the numerous handled fields, this e-book sequence is the final word reference within the quarter of business drying. positioned on the intersection of the 2 major ways in glossy chemical engineering, product engineering and approach structures engineering, the sequence goals at bringing concept into perform with a purpose to enhance the standard of high-value dried items, keep power, and reduce the prices of drying processes.

In Volume 1, various version forms for the drying of goods and the layout of drying tactics (short-cut tools, homogenized, pore community, and non-stop thermo-mechanical techniques) are taken care of, in addition to computational fluid dynamics, inhabitants balances, and technique structures simulation instruments. Emphasis is wear scale transitions.

 

Other Volumes and Sets:

 

Volume 2 - smooth Drying expertise: Experimental Techniques

Volume 2: Comprises experimental equipment utilized in quite a few industries and in learn which will layout and keep an eye on drying strategies, degree moisture and moisture distributions, represent particulate fabric and the interior micro-structure of dried items, and examine the habit of particle structures in drying apparatus. 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 houses of meals, biomaterials, lively pharmaceutical constituents, 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, resembling approach analytical expertise, and modeling instruments, reminiscent of Monte Carlo simulations, discrete particle modeling and neural networks, are awarded with actual examples from and academia.

 

Volume four - smooth Drying know-how: power Savings

Volume four: Deals with the relief of strength call for in quite a few drying approaches and parts, highlighting the subsequent issues: power research of dryers, effective solid-liquid separation innovations, 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 - procedure Intensification

Volume five: Dedicated to method intensification by way of extra effective distribution and circulate of the drying medium, foaming, managed freezing, and the appliance of superheated steam, infrared radiation, microwaves, strength ultrasound and pulsed electrical fields. approach potency is taken care of at the side of the standard of delicate items, similar to meals, for quite a few 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 resources for Modern Drying Technology, Computational Tools at Different Scales

Sample text

5 Design of Nozzle Field Based on the given Nusselt functions for the required heat transfer coefficient in Eq. 9, nozzle arrays can now be designed. It is again assumed that the heat is predominantly transferred for evaporation, while the enthalpy to heat up the dry material is again neglected. First, an array of individual nozzles will be considered for which a distinct maximum in the heat transfer results at a pitch of t ¼ 6d. Thus, 17 18 1 Impinging Jet Drying Fig. 18 Specific energy consumption, air, and product temperature as a function of the drying rate.

The evaporating _ v. The nozzle array is characterized by the inner mass flow has the enthalpy H diameter d of the individual nozzle, by the pitch t between the nozzles, and the velocity w of the released gas. There are basically three possible designs of nozzle arrays which differ with regard to the spent flow of the air (Fig. 2). In a field of individual nozzles the air can flow unimpeded between almost all nozzles; however, in a hole channel the air can flow only between those above. In a perforated plate the air can only continue to flow laterally and then escape.

In the deflection region at r/d % 1, a large vortex forms but this disintegrates at approximately r/d % 2 into many small vortices. , 2003, for photographs of the visualized flow). Increasing the nozzle distance from the stagnation point decreases the velocity, which in turn results in a decrease of the heat transfer coefficient. A completely laminar flow only occurs at Reynolds numbers smaller than 50; however, such small Reynolds numbers possess no meaning for technical heat-transfer processes. The local heat transfer coefficient depends on three geometric dimensions: the nozzle diameter d; the nozzle distance h; and the radial distance r.

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