Capillary Porous Bodies Intensive Drying Mechanism

Capillary-porous bodies intensive drying mechanism on the ...

New intensive drying mechanism of capillary-porous mineral composites. G. Maizel, A.Butkarev, V.Klein V.I., E. Nekrasova . Scientific-industrial-inculcation enterprise TOREX, Studencheskaya st., 16, 620219, Ekaterinburg Russia. ABSTRACT. This work is dedicated to the questions of laboratory modeling of capillary-porous mineral composites intensive convective drying process. On the base of ...

Drying mechanism of capillary-porous bodies | SpringerLink

01/09/1970· A new model is proposed for the drying process in capillary-porous solids during the period of falling drying rate. Good agreement is obtained between the theoretical calculations and the experimental results.

Intensive drying of an infinite plate - ScienceDirect

Printed in Great Britain INTENSIVE DRYING OF AN INFINITE PLATE G. TRIPATHI, K. N. SHUKLA* and R. N. PANDEY Institute of Technology, Banaras Hindu University, Varanasi, India (Received 30 September 1975) Abstractinetics of drying mechanism is studied for the capillary porous body. Local values of temperature, moisture content and pressure are evaluated analytically under the most …

DRYING - Thermopedia

Drying is an energy-intensive operation of some significance. Estimates of energy demand range between 7 and 15% of a nation's industrial energy consumption [Keey (1992)], but a more recent survey for the United Kingdom in 1990 suggests the figure may be as high as 20%, an increase from the 12% obtained in a similar survey in 1978 [Oliver and Jay (1994)]. This difference may reflect the ...

Capillary-porous bodies intensive drying mechanism on the ...

Capillary-porous bodies intensive drying mechanism on the 747NEW INTENSIVE DRYING MECHANISM CAPILLARY-POROUS MINERAL COMPOSITES Maizel,A.Butkarev, V.Klein V.I., NekrasovaScientific-industrial-inculcation enterprise TOREX, Studencheskaya st., 16, 620219, Ekaterinburg Russia.

Drying of colloidal capillary-porous materials - ScienceDirect

Drying of colloidal capillary-porous materials involves both the heat and mass transfer processes and the process of deformation of material structure. Deformability of colloidal capillary-porous bodies is related to the fact that contacts between the particles forming these bodies are executed through the liquid layers. In this case, shrinkage can have a large value because water layers ...

Mechanical aspect on drying of wet porous media

Download Citation | Mechanical aspect on drying of wet porous media | An aspect of thermomechanics of fluid saturated capillary-porous media concerning the mechanical phenomena accompanying the ...

Transient Heat Conduction in Capillary Porous Bodies

Practically all drying models of capillary porous bodies are based on these equations and include a description of the specific initial and boundary conditions, as well as of thermo- and mass physic al characteristics of the subjected to drying bodies (Ben Nasrallah & Perre, 1988, Doe, O liver & Booker, 1994, Ferg uson & Lewis, 1991, Kulasiri & Woodhead 2005, Murugesan et al ., 2001, Zhang ...

Hybrid integral transform solution for the analysis of ...

Luikov equations with pressure gradient effects considered for drying of capillary-porous solids of spherical geometry. • The Generalized Integral Transform Technique (GITT) employed in the hybrid solution of the related equations. • Parametric analysis performed to investigate the influence of the Bulygin and Luikov for filtration numbers. • Comparisons of the results for the potential ...

On modelling the drying of porous materials: analytical ...

276 On modelling the drying of porous materials differential equations separately without paying attention to the coupling effects, espe-cially when the drying rates are small (see, e.g., [3]). However, one would expect that these coupled heat and mass transfer in porous bodies could be …

Effect of Porosity on Drying Kinetics and Food ...

Effect of Porosity on Drying Kinetics and Food Properties chemical reacting agents, accelerating the Maillard reaction and resulting in higher browning rates (Acevedo et al. 2008). In addition, the appearance of food materials depends directly on several factors, including the ability of food material to scatter, absorb, transmit, and reflect visible light (Wyszecki and Stiles 2000).

DRYING - Thermopedia

Drying is an energy-intensive operation of some significance. Estimates of energy demand range between 7 and 15% of a nation's industrial energy consumption [Keey (1992)], but a more recent survey for the United Kingdom in 1990 suggests the figure may be as high as 20%, an increase from the 12% obtained in a similar survey in 1978 [Oliver and Jay (1994)]. This difference may reflect the ...

Stefan J. Kowalski's research works | Poznan University of ...

Stefan J. Kowalski's 125 research works with 1,627 citations and 5,121 reads, including: Hybrid Drying of Carrot Preliminary Processed with Ultrasonically Assisted Osmotic Dehydration

Capillary action - Wikipedia

Capillary action (sometimes capillarity, capillary motion, capillary effect, or wicking) is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity.The effect can be seen in the drawing up of liquids between the hairs of a paint-brush, in a thin tube, in porous materials such as paper and plaster, in some non-porous ...

GIANTS OF DRYING - tandfonline.com

Beds of sand; capillary porous bodies; diffusion; dimensionless numbers; gravitational forces; history; slabs; spray drying. To those who have studied about the drying mechanism as fundamentals of drying operation and have built "Drying" as one of widely used unit operations, I would like to express the deepest respect for their distinguished works. I would like to call them the "Giants of ...

Mass and Heat Transport Models for Analysis of the Drying ...

The modeling and numerical simulation of drying in porous media is discussed in this work by revisiting the different models of moisture migration during the drying process of porous media as well as their restrictions and applications. Among the models and theories, we consider those are ranging from simple ones like the diffusion theory to more complex ones like the receding front theory ...

The Drying of Solids—I | Industrial & Engineering Chemistry

Study for the Standardization of the Drying Curves of Capillary-Porous Media. Industrial & Engineering Chemistry Research 2005, 44 (17) , 6865-6873. DOI: 10.1021/ie050172a. Edward Wayne Davis,, Ramachandra Mukkamala, and, H. Michael Cheung. Effects of Precursor Composition on Pore Morphology for Thermally Polymerized Acrylic Acid/Methyl Methacrylate-Based Microemulsions. …

Solids Drying: Basics and Applications - Chemical ...

Mechanism of drying. Drying may be defined as the vaporization and removal of water or other liquids from a solution, suspension, or other solid-liquid mixture to form a dry solid. It is a complicated process that involves simultaneous heat and mass transfer, accompanied by physicochemical transformations. Drying occurs as a result of the vaporization of liquid by supplying heat to wet ...

RU2548696C1 - Method of highly intensive acoustic …

FIELD: heating, drying. SUBSTANCE: invention refers to acoustic drying method for capillary and porous materials by high-intensity sound vibration and can be applied in any industries and agricultures requiring drying of materials in amounts of dozens of cubic metres. Drying chamber is made of heavy materials with high acoustic resistance (such as concrete), with wall of sufficient thickness ...

Capillary drying | Article about capillary drying by The ...

This radial drying mechanism provided greater MC loss than capillary drying in the longitudinal direction. Magnetic resonance studies of wood log-drying processes After the second rinse, the optical components are pulled out very slowly by the lift-out system to allow for pre-drying by the capillary drying …

GIANTS OF DRYING - tandfonline.com

Beds of sand; capillary porous bodies; diffusion; dimensionless numbers; gravitational forces; history; slabs; spray drying. To those who have studied about the drying mechanism as fundamentals of drying operation and have built "Drying" as one of widely used unit operations, I would like to express the deepest respect for their distinguished works. I would like to call them the "Giants of ...

Mass and Heat Transport Models for Analysis of the Drying ...

The modeling and numerical simulation of drying in porous media is discussed in this work by revisiting the different models of moisture migration during the drying process of porous media as well as their restrictions and applications. Among the models and theories, we consider those are ranging from simple ones like the diffusion theory to more complex ones like the receding front theory ...

The vapour-liquid interface and stresses in dried bodies ...

The paper presents a contribution to modelling the problem of vapour-liquid interface receding into dried body and stresses induced by drying of capillary-porous bodies. A complex algorithm comprising the specific mechanisms of drying in the first and second periods of drying is constructed. It enables calculation and drawing of the body temperature and drying curves for the whole drying ...

Luikov’s Scientific History and the Evolution of the ...

and the Evolution of the International Center for Heat and Mass Transfer (ICHMT) ... drying of capillary-porous bodies (filter paper disks). On the basis of the experiments conducted, A. V. Luikov was first to propose temperature curves for the analysis of the kinetics of a drying process, including the study of the mechanism of deepening of the evaporation zone. 4 In 1932, A. V. Luikov ...

Simultaneous Moisture and Heat Transfer in Porous …

Solutions of Luikov equations of heat and mass transfer in capillary porous bodies through matrix calculus: a new approach. ... Drying of Porous Materials in the Presence of Solar Radiation. Drying Technology 1996, 14 (10) , 2339-2369. DOI: 10.1080/07373939608917209. W. Li, M. A. Ebadian, T. L. White, D. Foster. Heat Transfer Within a Steel-Reinforced Porous Concrete Slab Subjected to ...

Mechanism of drying thick porous bodies during the …

Mechanism of drying thick porous bodies during the falling‐rate period: III. Analytical treatment of macroporous systems. A. H. Nissan. Rensselaer Polytechnic Institute, Troy, New York. Search for more papers by this author. H. H. George Jr. Rensselaer Polytechnic Institute, Troy, New York. Search for more papers by this author . T. V. Bolles. Rensselaer Polytechnic Institute, Troy, New York ...

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