Study of the Moisture Bond Forms in Cheeses

The article is devoted to the study of the forms of moisture bond in mature cheeses. The kinetics of mass transfer processes depend on the mobility and binding energy of water with solid and dissolved substances. Therefore, the removal of bound water is accompanied by deterioration in kinetics and increased energy consumption. In this regard, information on the state of bound water in substances during dehydration is very important from a scientific point of view and from a practical one. Based on the studies carried out, the forms of moisture bond in various types of cheese were determined by strain-gauge and thermographic methods. Based on this, it has been established that the forms of moisture bond in cheeses can be determined by strain-gauge and thermographic methods.

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STUDY OF THE FORMS OF MOISTURE IN A MATURE CHEESES

Agro-industrial technologies of the Central Russia ◽

10.24888/2541-7835-2020-18-12-17 ◽

2020 ◽

Vol 18 (4) ◽

pp. 12-17

Author(s):

V.A. Ermolaev ◽

Keyword(s):

Mass Transfer ◽

Energy Consumption ◽

Binding Energy ◽

Solid Phase ◽

Bound Water ◽

Point Of View ◽

Practical Point ◽

Transfer Processes ◽

Mass Transfer Processes ◽

Kinetics Of

The work is devoted to the study of forms of moisture connection in Mature cheeses. The kinetics of mass transfer processes depends on the mobility and binding energy of water with the solid phase and solutes. Therefore, the removal of bound water is accompanied by both a deterioration in the kinetics and an increase in energy consumption. In this regard, information about the state of bound water in materials during dewatering is very important not only from a scientific but also from a practical point of view. Based on the conducted research, the forms of moisture binding in various types of cheese were determined by the strain-measuring and thermographic method. On the basis of which it is established that the forms of moisture binding in cheeses can be determined by strain and thermographic methods.

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3D Model-Based Simulation Analysis of Energy Consumption in Hot Air Drying of Corn Kernels

Mathematical Problems in Engineering ◽

10.1155/2013/579452 ◽

2013 ◽

Vol 2013 ◽

pp. 1-12 ◽

Cited By ~ 2

Author(s):

Shiwei Zhang ◽

Ninghua Kong ◽

Yufang Zhu ◽

Zhijun Zhang ◽

Chenghai Xu

Keyword(s):

Mass Transfer ◽

Energy Consumption ◽

Air Temperature ◽

Hot Air Drying ◽

Air Drying ◽

Body Model ◽

Transfer Processes ◽

Hot Air ◽

Mass Transfer Processes ◽

Corn Kernels

To determine the mechanism of energy consumption in hot air drying, we simulate the interior heat and mass transfer processes that occur during the hot air drying for a single corn grain. The simulations are based on a 3D solid model. The 3D real body model is obtained by scanning the corn kernels with a high-precision medical CT machine. The CT images are then edited by MIMICS and ANSYS software to reconstruct the three-dimensional real body model of a corn kernel. The Fourier heat conduction equation, the Fick diffusion equation, the heat transfer coefficient, and the mass diffusion coefficient are chosen as the governing equations of the theoretical dry model. The calculation software, COMSOL Multiphysics, is used to complete the simulation calculation. The influence of air temperature and velocity on the heat and mass transfer processes is discussed. Results show that mass transfer dominates during the hot air drying of corn grains. Air temperature and velocity are chosen primarily in consideration of mass transfer effects. A low velocity leads to less energy consumption.

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The Automated Calibration System for Process Parameters of Electric Adsorption Devices for Selective Purification of Gas Emissions

Vestnik Tambovskogo gosudarstvennogo tehnicheskogo universiteta ◽

10.17277/vestnik.2020.03.pp.371-387 ◽

2020 ◽

Vol 26 (3) ◽

pp. 371-387

Author(s):

N. A. Merentsov ◽

◽

A. V. Persidskiy ◽

M. V. Topilin ◽

A. B. Golovanchikov ◽

...

Keyword(s):

Mass Transfer ◽

Electric Field ◽

Process Parameters ◽

Large Scale ◽

Point Of View ◽

Filtration Flow ◽

Gas Emissions ◽

Transfer Processes ◽

Mass Transfer Processes ◽

Calibration Program

The procedure for automatic calibration of process parameters of electric adsorption mass transfer devices for selective purification of gas emissions is presented on the example of a continuous electric adsorber with a moving adsorbent bed. The calibration program is based on automatic recognition of the ranges of regulation of the operating modes of electric sorption devices at the stage of commissioning or during the current operation of technological mass transfer equipment. The hydrodynamics of the filtration flow through the adsorbent bed and the parameters of the electric field are subject to calibration, while the optimal filtration regimes from the point of view of washing the adsorbent granules with a continuous gas phase flow are recognized. Determination of the control limits for the parameters of the electric field is based on an automatic check of the quality of electrical insulation part of the mass transfer device, as well as recognition of the current arising in the circuit when ions move between charged surfaces (ionic wind). The calibration program and the parameters obtained with its help will enable the self-adaptive system of automated control of electrical adsorption processes to achieve the highest rates of purification of gas emissions, with optimal energy costs for the implementation of mass transfer processes and will provide an opportunity to smooth out technological, large-scale and other factors inherent in specific mass transfer processes and device designs.

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