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Journal articles on the topic 'Drying equations'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Prakash, Bhagwati, and Terry J. Siebenmorgen. "Single-Parameter Thin-Layer Drying Equations for Long-Grain Rice." Transactions of the ASABE 61, no. 2 (2018): 733–42. http://dx.doi.org/10.13031/trans.12555.

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Abstract. The use of multiple parameters in thin-layer drying equations makes it difficult to compare and quantify the impact of drying air temperature, relative humidity, and other factors on the drying characteristics of an agricultural crop. In this study, two single-parameter equations are proposed to quantify thin-layer drying characteristics of contemporary long-grain rice cultivars grown in the Mid-South U.S. Drying runs were first performed to obtain drying curves for cultivar ‘Roy J’ under 18 air conditions; several drying equations were evaluated for their fit to each drying curve. T

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2

Smirnov, M. S., and V. I. Lysenko. "Equations of drying curves." International Journal of Heat and Mass Transfer 32, no. 5 (1989): 837–41. http://dx.doi.org/10.1016/0017-9310(89)90232-9.

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3

Lysa, Olha, Andrii-Volodymyr Midyk, and Tomasz Więcek Tomasz Więcek. "RESEARCH AND DEVELOPMENT OF THE DRYING TECHNOLOGY." Measuring Equipment and Metrology 85, no. 3 (2024): 17–24. http://dx.doi.org/10.23939/istcmtm2024.03.017.

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Static and dynamic characteristics of the drying process as an object of automation are experimentally determined in the work. It was established that the drying object can be represented as two linked "air" – "drying object" and has interconnected input and output parameters. A mathematical description of the static and dynamic characteristics of the drying process as an object of automatic regulation has been researched and carried out. With the help of mathematical processing of experimental data, mathematical dependences on the studied regulation channels were obtained as the transfer func

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V. О., Shvidia. "Mathematical modeling of heat and mass transfer in the process of drying seeds of agricultural crops in vacuum conditions." Mehanization and electrification of agricultural, no. 15(114) (2022): 95–101. http://dx.doi.org/10.37204/0131-2189-2022-15-11.

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Purpose. To analyze the effect of vacuum on the process of drying seeds of agricultural crops using mathematical modeling. Methods. Methods of differential calculus were used, in particular first-order differential equations, as well as differential geometry. The analysis of the mathematical model was carried out using graphs that were built by computer programs for solving differential equations. Results. On the basis of balance equations of heat and humidity flows of the seed drying process in the drying chamber, a system of differential equations was compiled and solved. Analytical dependen

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Ol’shanskii, A. I., A. A. Kotow, and S. M. Kuzmenkov. "Methods of calculating the kinetics of drying of natural leather." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 67, no. 4 (2023): 393–401. http://dx.doi.org/10.29235/1561-8358-2022-67-4-393-401.

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A method for calculating drying kinetics based on A. V. Lyikov’s kinetics equation and drying rate curves for the drying process of natural leather is presented. Methods of approximating velocity curves to determine the drying time are considered. An equation for calculating the drying time of natural leather with a variable drying factor is presented. Based on the processing of experimental data on drying of natural leathers, equations for calculating heat flux densities, intensity of moisture evaporation and material temperature in the period of falling drying rate are presented. Based on th

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6

Peng, S. W. "Luikov equations applicable to sublimation-drying." Wärme- und Stoffübertragung 29, no. 8 (1994): 501–5. http://dx.doi.org/10.1007/bf01539503.

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Moreno, Fabian L., Alfonso Parra-Coronado, and Jesus H. Camacho-Tamayo. "Mathematical simulation parameters for drying of cassava starch pellets." Engenharia Agrícola 34, no. 6 (2014): 1234–44. http://dx.doi.org/10.1590/s0100-69162014000600018.

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Based on experimental tests, it was obtained the equations for drying, equilibrium moisture content, latent heat of vaporization of water contained in the product and the equation of specific heat of cassava starch pellets, essential parameters for realizing modeling and mathematical simulation of mechanical drying of cassava starch for a new technique proposed, consisting of preformed by pelleting and subsequent artificial drying of starch pellets. Drying tests were conducted in an experimental chamber by varying the air temperature, relative humidity, air velocity and product load. The speci

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Häussling Löwgren, Bartolomeus, Julius Bergmann, and Odilio Alves-Filho. "A Numerical Implementation of the Soret Effect in Drying Processes." ChemEngineering 4, no. 1 (2020): 13. http://dx.doi.org/10.3390/chemengineering4010013.

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Drying of porous media is strictly governed by heat and mass transfer. However, contrary to the definition that drying is simultaneous transport mechanisms of heat and mass, most past and current models either account for temperature or concentration gradient effects on drying. Even though the complexity of computations of these processes varies with area of application, in most cases, the Dufour and Soret effects are neglected. This leads to deviations and uncertainties on the assumptions and interpretations of these and other relevant effects on drying. This paper covers the theoretical meth

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9

Ol’shanskii, A. I., and A. N. Golubev. "Kinetics of moisture exchange during convection drying of thin flat wet materials." Proceedings of the National Academy of Sciences of Belarus. Physical-technical series 69, no. 3 (2024): 206–14. http://dx.doi.org/10.29235/1561-8358-2024-69-3-206-214.

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The kinetics of convective drying of thin wet thermal insulation materials based on the relative drying rate and relative moisture contents has been studied. Processing of experimental data on drying of various wet materials has established that the relative drying rate is related to the relative moisture contents, which are the ratios of the current moisture content to its critical and initial values. Based on the functional dependence of the relative drying rate on the relative moisture contents using the processing of the experiment on drying of ceramics, felt, and asbestos, equations for c

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10

Shvidia, Viktor, and Serhii Stepanenko. "Mathematical Modeling of the Process of Operation of the Drying Chamber of a Tower Grain Dryer With a Suction Air Flow." National Interagency Scientific and Technical Collection of Works. Design, Production and Exploitation of Agricultural Machines, no. 50 (2020): 114–21. http://dx.doi.org/10.32515/2414-3820.2020.50.114-121.

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In the article, a drying scheme in a tower grain dryer has been developed, equations for the conservation of energy and material balance for grain, equations for mass transfer and heat transfer between the drying agent and grain have been drawn up. On their basis, analytical dependences of changes in the temperature and moisture content of grain, moisture content and temperature of the drying agent along and in the width of the drying channel were obtained, depending on the operating parameters (the value of rarefaction in the drying channel, the speed of grain movement along the drying channe

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THI, NGOC GIANG NGUYEN, and MINH THUY NGUYEN. "EFFECTS OF DRYING METHODS ON THE CHARACTERISTICS OF Pleurotus sajor-caju MUSHROOM." Malaysian Applied Biology 49, no. 3 (2020): 31–36. http://dx.doi.org/10.55230/mabjournal.v49i3.1538.

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Mushrooms of the Pleurotus spp. are very sensitive and the shelf-life of mushrooms is limited, that is a few days under normal or low temperatures, which is a limitation in the distribution and marketing of fresh products. To extend their shelf life, drying methods need to be applied. Total drying time decreased with increased drying temperatures (960 and 330 min of drying at 40 and 70°C, respectively). The drying curve equations is establised as y=a.exp(-kt) (R2>0.95). These equations can be applied to predict moisture reduction during drying of Pleurotus spp. at the temperature ranges stu

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Hryshchenko, V. O. "Modeling and calculation power saving modes grain drying materials under energy fields." Naukovij žurnal «Tehnìka ta energetika» 11, no. 3 (2020): 23–29. http://dx.doi.org/10.31548/machenergy2020.03.023.

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Storing grain quality materials in post harvest handling and storage is largely dependent on correctly implemented the drying process. In agricultural production mainly use costly convection dryer. The main share of wasteful energy consumption accounts for heat drying agent, some heat is lost to the environment through the working surface of the dryers and spent coolant. Ways to reduce these energy costs is to reduce the amount of drying agent in the process to the level necessary to absorb and remove moisture from the dryer and the working volume of the principles of targeted "delivery" of en

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Salemovic, Dusko, Aleksandar Dedic, and Nenad Cupric. "A mathematical model and simulation of the drying process of thin layers of potatoes in a conveyor-belt dryer." Thermal Science 19, no. 3 (2015): 1107–18. http://dx.doi.org/10.2298/tsci130920020s.

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This paper presents a mathematical model and numerical analysis of the convective drying process of small particles of potatoes slowly moving through the flow of a drying agent - hot moist air. The drying process was analyzed in the form of a one-dimensional thin layer. The mathematical model of the drying process is a system of two ordinary nonlinear differential equations with constant coefficients and an equation with a transcendent character. The appropriate boundary conditions of the mathematical model were given. The presented model is suitable in the automated control. The presented sys

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Ol’shanskii, A. I., and A. N. Golubev. "Investigation of the Kinetics of Heat and Moisture Exchange during Heat Treatment and Drying of Thin Wet Thermal Insulation Materials." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 66, no. 1 (2023): 66–79. http://dx.doi.org/10.21122/1029-7448-2023-66-1-66-79.

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. The kinetics of drying of thin heat-insulating flat materials has been studied. The approximation of the drying rate curve by various methods is presented. When determining the duration of drying by zonal methods, the equation of the drying rate with the drying coefficient was used. The techniques of processing experimental data by zonal methods of A.V. Lykov, V. V. Krasnikov and by the method of B. S. Sazhin are described. The equation obtained by processing experimental data using the B. S. Sazhin method to determine the duration of the drying process contains only the amount of moisture c

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Style, Robert W., and Stephen S. L. Peppin. "Crust formation in drying colloidal suspensions." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 467, no. 2125 (2010): 174–93. http://dx.doi.org/10.1098/rspa.2010.0039.

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During the drying of colloidal suspensions, the desiccation process causes the suspension near the air interface to consolidate into a connected porous matrix or crust. Fluid transport in the porous medium is governed by Darcy’s law and the equations of poroelasticity, while the equations of colloid physics govern processes in the suspension. We derive new equations describing this process, including unique boundary conditions coupling the two regions, yielding a moving-boundary model of the concentration and stress profiles during drying. A solution is found for the steady-state growth of a o

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Ruzikulov, Gulom, Umidjon Ibragimov, Azim Ruzikulov, Bakhrom Sherkulov, and Mirabbos Khidirov. "Mathematical modeling of the drying chamber of the combined solar dryer-cooler unit." BIO Web of Conferences 71 (2023): 02027. http://dx.doi.org/10.1051/bioconf/20237102027.

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This research paper presents the mathematical model and numerical results of the heat and mass exchange processes in the drying chamber (DCh) of the combined solar air collector SAC indirect solar dryer (SD) designed for drying 30 kg of fresh apple slices in one drying cycle. This dryer allows you to reduce the moisture content of apple slices from 62% to 17%. Also, physical processes in the DCh are modeled on the basis of balance equations when various parameters affecting the product drying process change. The solution of these equations makes it possible to determine the temperature change

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17

Ghaffari, Ali, and Ramin Mehdipour. "Modeling and Improving the Performance of Cabinet Solar Dryer Using Computational Fluid Dynamics." International Journal of Food Engineering 11, no. 2 (2015): 157–72. http://dx.doi.org/10.1515/ijfe-2014-0266.

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Abstract In this study, a new approach for numerically modeling of an entire cabinet solar dryer is proposed. Collector, drying chamber and chimney are the three principle sections considered in the present modeling. The collector section containing a cover and an absorber plate is modeled applying energy and fluid flow equations to obtain temperature distribution inside the collector. Due to the non-linear behavior of the governing equations as well as variety of effective variables, an iterative method is employed for solution. Regarding the geometry complexity of the drying chamber along wi

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18

Wende Pouire Ouedraogo, Germain, Boureima Kabore, Nebon Bado, Vincent Zoma, Sie Kam, and Dieudonne Joseph Bathiebo. "SIMULATION OF THE OKRA DRYING PROCESS IN A SOLAR TOWER DRYER." International Journal of Advanced Research 10, no. 01 (2022): 53–61. http://dx.doi.org/10.21474/ijar01/14011.

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This work presents the simulation of the drying air flow in a solar tower dryer as well as the okra drying process with FORTRAN software. The explicit Euler method was used for solving the heat transfer and mass transfer equations. The heat transfer equations reflect the flow of hot air from the manifold and directed into the drying chamber, while the mass transfer equations reflect the removal of moisture from the fresh product through the exchange of heat. This simulation gives an idea of â€‹â€‹the heat input received by the air after it enters the dryer manifold and then its action on the p

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Ol’shanskii, A. I., and A. N. Golubev. "Generalized Complex Variables of Drying Kinetics in Calculations of Drying Duration of Flat Thin Wet Materials." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 67, no. 4 (2024): 363–76. http://dx.doi.org/10.21122/1029-7448-2024-67-4-363-376.

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The article is devoted to the processing of experimental data regarding the drying of thin wet materials. The calculated kinetic dependencies necessary to determine the drying duration can be obtained from solving differential mass transfer equations, but this task is analytically complex, since drying is a non-stationary process, and the transfer coefficients depend on the moisture content and temperature of the material in a very complex form. This necessitates experimental studies with the development of approximate simple empirical equations for determining the drying duration with a minim

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20

Aeda Rahim Nagi. "Mathematical model for spray drying process." Journal of Wasit for Science and Medicine 4, no. 2 (2022): 122–35. http://dx.doi.org/10.31185/jwsm.157.

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Mathematical model for co-current spray dryer is developed . The model is axisymmetric dimensional model and two way coupling .It includes the mass, momentum, and heat transfer for a single drying droplet as well as for drying medium . The system used is water-air. The model used a system of equations to compute the axial and radial distribution of droplet diameter, its velocity , temperature and rate of evaporation , and air temperature , humidity and velocity in spray drying chamber . The model includes a system of non linear first order differential equations as a function of the axial dist

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21

Satyanaga, Alfrendo, Jong Kim, Sung-Woo Moon, and Martin Wijaya. "Exponential Functions for Modelling Hysteresis of Soil-Water Characteristic Curves." E3S Web of Conferences 195 (2020): 02002. http://dx.doi.org/10.1051/e3sconf/202019502002.

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Soil – water characteristic curve (SWCC) is an important property of unsaturated soils that can be used to estimate various parameters to describe unsaturated soil behavior. SWCC is reported to be hysteretic because the water content at a given suction in the wetting process is less than that in the drying process. In order to simulate the hysteretic characteristics of SWCC, many models have been proposed by different researchers. However, majority of the existing models are complex and their parameters are not related to the physical significances of SWCC variables. In this study, the new equ

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Saparov, Dj E., S. A. Sultonova, E. С. Guven, D. I. Samandarov, and A. M. Rakhimov. "Theoretical study of characteristics and mathematical model of convective drying of foods." E3S Web of Conferences 461 (2023): 01057. http://dx.doi.org/10.1051/e3sconf/202346101057.

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The characteristics of convective drying of potatoes at different temperatures, air velocity and slice thickness are investigated and a mathematical model is developed. The results show that the drying time decreases with increasing drying temperature. Compared with air velocity, drying temperature and slice thickness have a greater influence on the drying rate, and the period of velocity drop is the main stage of the convective drying process. As a model for convective drying of potato, the equations for 6 drying models are fitted and the optimal model is selected.

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Ol’shanskii, A. I., S. V. Zhernosek, and A. M. Gusarov. "Investigation of Heat and Mass Transfer in the Processes of Heat Treatment and Drying of Thermal Insulation Materials." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 65, no. 2 (2022): 156–68. http://dx.doi.org/10.21122/1029-7448-2022-65-2-156-168.

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The results of the study of heat and mass transfer in the processes of heat treatment and drying processes of thermal insulating materials when the values of the Biot heat exchange criterion are less than one and the main factor is the interaction of the evaporation surface of the material with the environment (external problem) are presented. It was assumed that at low temperature gradients over the cross section of a wet body, thermal transfer of matter can be neglected, and phase transformations are absent (Posnov's criterion is equal to zero). By processing the experimental data on convect

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Roland, LANKOUANDE* G. Gilbert NANA Souleymane OUEDRAOGO Kalifa PALM Sié KAM Frédéric OUATTARA. "NUMERICAL SIMULATION OF THE AIR FLOW IN AN INDIRECT SOLAR DRYER WITH NATURAL CONVECTION." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 12, no. 8 (2023): 17–26. https://doi.org/10.5281/zenodo.8310988.

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In this work, we have simulated the air flow in an indirect solar dryer with natural convection, and we study the behavior of its flow from the inlet of the collector to the outlet of the drying chamber. This phenomenon is governed by the Navier-Stokes equations. These equations, coupled with the initial and boundary conditions, are discretized by a finite difference method and then solved numerically using Gaussian algorithms. The resolution of these equations allows us to have the temperature profile which varies from 303 K to 343 K, also a velocity profile which is between 0.5 m/s and 2.5 m

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Ol’shanskii, A. I., and A. S. Marushchak. "Heat and moisture transfer kinetics and temperature during drying of fabrics." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 66, no. 4 (2021): 449–57. http://dx.doi.org/10.29235/1561-8358-2021-66-4-449-457.

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The methods of approximation of the curve of the drying rate of fabrics according to the methods of A. V. Lykov and V. V. Krasnikov are described. The results of processing experimental data on convective tissue drying are presented. Equations are given for determining the drying time of fabrics, the density of heat flows and the temperature of fabrics during the drying process. The equations for determining the drying coefficient and the relative drying rate are given. An analytical method for determining the temperature for the period of falling drying rate is considered. The comparison of t

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Gandía Ventura, Ignacio, Borja Velázquez Martí, Isabel López Cortes, and Sebastián Guerrero-Luzuriaga. "Kinetic Models of Wood Biomass Drying in Hot Airflow Systems." Applied Sciences 14, no. 15 (2024): 6716. http://dx.doi.org/10.3390/app14156716.

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In the field of convective drying, several models have been proposed by different research groups, both theoretical and empirical. However, research on theoretical mathematical models has been superficial and needs to be extended. Empirical models present difficulties in their implementation in other research. It is suggested that further research should focus on obtaining models adaptable to different species and environmental conditions. The aim of this work was to analyse the current state of research on the drying process and mass transfer. It is concluded that drying is a mathematically c

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Olshanski, A. I., A. L. Klimentyev, and A. A. Kotow. "Heat and mass transfer in the processes of drying thin natural leathers pasted on smooth surfaces." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 68, no. 1 (2023): 50–59. http://dx.doi.org/10.29235/1561-8358-2023-68-1-50-59.

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The results of the study of drying thin natural leather pasted on a smooth surface are presented. The results of solving the differential equation of non-stationary heat conduction with constant thermophysical coefficients are used to determine the average temperature during the period of decreasing drying rate. The calculated values of temperatures for moisture-proof and moisture-free skin surfaces are given. Methods for simplifying solutions of nonlinear equations with the aim of linearizing these equations for approximating solutions with variable transport coefficients are considered. The

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Nowak, Janusz, and Wojciech Przystupa. "Methods for Asssessing Energy Efficiency of Grain Dryers." Agricultural Engineering 23, no. 2 (2019): 39–47. http://dx.doi.org/10.1515/agriceng-2019-0015.

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AbstractThe article presents an algorithm for calculating selected energy assessment indexes for grain driers. Particular attention was paid to the conversion of the equations obtained for the operating conditions of the drying process into equations allowing the calculation of indexes for the standard drying conditions. The indexes obtained allow a proper comparison of dryers operating in varied atmospheric conditions, as well as humidity and temperature of the dried material.

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Khuzhakulov, S. M., I. L. Nematov, and B. E. Khairiddinov. "Simulation of hydrodynamics of the dispersed layer of fruit during solar-convective drying." E3S Web of Conferences 494 (2024): 03014. http://dx.doi.org/10.1051/e3sconf/202449403014.

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The article proposes a hydrodynamic model of forced convective drying of fruits and vegetables, in which the direction of the coolant flow to the product being dried, the degree of dispersion of the product layer, the hydrodynamics of drying fruits and vegetables in the form of spheroids, flat disks and flat plates, as well as supports with plastic, metal and wooden gratings, modeled based on the necessary equations and criterion equations.

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Kien, Pham Van, Nguyen Thanh Tan, Pham Huu Nghia, Van Tinh Nguyen, Le Anh Duc, and Nguyen Hay. "Heat and Mass Transfer in Infrared Assisted Heat Pump Drying of Purple Yam." Agricultural Engineering 28, no. 1 (2024): 71–84. http://dx.doi.org/10.2478/agriceng-2024-0006.

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Abstract This study focused on an engineering problem of heat and mass transfer in infrared (IR) assisted heat pump (HP) drying of purple yam including both a drying experiment and theory of heat and mass transfer mathematical equations. The experimental drying of yam by the IR assisted HP drying method was performed to evaluate the effect of IR power on drying rate and heating rate. The input drying parameters included the drying air temperature of 50°C, drying air velocity of 2.5 m·s−1 and IR power of 0, 300 and 350 W, in which, at the IR power of 0 W, the HP-only drying mode was performed.

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Atamanyuk, Volodymyr, and Yaroslav Gumnytskyi. "Mass Exchange Dynamics During the Second Filtration Drying Period." Chemistry & Chemical Technology 3, no. 2 (2009): 129–37. http://dx.doi.org/10.23939/chcht03.02.129.

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The work is dedicated to theoretical and experimental investigations of kinetics and dynamics of filtration drying of capillary and pore materials, and mineral granulated fertilizers, in particular. The proposed physical model of a moist particle and the differential system of equations which describes heat exchange in the second drying period enables to determine the transfer velocity of mass-exchange zone in a dispersion layer of the material during filtration drying.

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de Souza Tavares, Francisca Valdeiza, Atacy Maciel de Melo Cavalcante, Maria José de Figueiredo, et al. "On the Modeling of Drying Process in an Industrial Tunnel Dryer." Defect and Diffusion Forum 400 (March 2020): 51–56. http://dx.doi.org/10.4028/www.scientific.net/ddf.400.51.

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This paper aims to study convective drying of industrial hollow bricks in a tunnel dryer. A transient mathematical model based on the heat and mass conservation equations applied to the air and brick was derived and the numerical solution (finite-volume method) of the governing equations is presented. Predicted and experimental data of the average moisture content and the temperature of the product during the drying process are compared and a good concordance was verified. Numerical results inside the bed confirm an almost null difference between the moisture content along the process. Similar

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Demirpolat, Ahmet Beyzade. "Investigation of Mass Transfer with Different Models in a Solar Energy Food-Drying System." Energies 12, no. 18 (2019): 3447. http://dx.doi.org/10.3390/en12183447.

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In drying systems, the examination of the drying rate values of the food product in advance gives important information about the raw material to be dried. In this study, thin-layer drying behavior of apple slices in a convective solar dryer was investigated. The experiments were carried out at a drying air temperature of 46–63 °C and a drying air speed of 0.7–1.8 m/s. In order to determine the drying kinetics, the mass change of apple slices was recorded under all drying air conditions. The effects of drying air temperature and speed, drying speed of apple slices, dimensionless moisture conte

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A., D. Sagagi, and Enaburekhan J. "REVIEW OF SIMULATION STUDIES FOR GRAIN DRYING IN DIRECT SUN AND SOLAR DRYERS." Continental J. Engineering Sciences 1 (July 22, 2007): 27–35. https://doi.org/10.5281/zenodo.833563.

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This paper reviews the theoretical models of physical processes in a drying system and their suitability for modeling the drying system. Detail discussion on the relationships and data required in the simulation models were also presented.

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Hu, Jian Jun, Sheng Qiang Shen, Ting Zhou Lei, Hao Huang, and Quan Guo Zhang. "Research on Constant-Temperature Drying Test of Cotton Straw and Regression Analysis of Drying Rate." Advanced Materials Research 472-475 (February 2012): 1645–51. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.1645.

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Constant-temperature drying tests for cotton straw under different conditions were performed with an integrated thermal analyzer, and the influence of different drying conditions on the drying process was analyzed. The process was divided into preheating stage, constant-rate drying stage, and decelerating drying stage. Regression analysis was conducted for drying curves at the latter two stages, and then the drying time at the critical point was determined. Regression equations of drying rate at these stages were produced. Research results showed that the decelerating drying stage of cotton st

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Kamaldeen O. S and Okedokun O. W. "Performance evaluation of NSPRI parabolic solar dryer for drying of bell pepper." GSC Advanced Engineering and Technology 4, no. 2 (2022): 025–31. http://dx.doi.org/10.30574/gscaet.2022.4.2.0055.

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Parabolic solar dryer developed by Nigerian Stored Products Research Institute was used to dry bell pepper. The drying rate, color changes and drying kinetics using some empirical modelling equations were determined. Open sun drying method was used as a control. Drying rate (2.11 kg/day) of the parabolic solar dryer was significantly higher than that of the sun drying (1.92 kg/day). Bell peppers dried under parabolic dryer retained their color better than those peppers under sun drying. Page model is the most suitable model to describe the drying kinetics of the bell pepper under solar drying.

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Vu, Hong Thai, and Evangelos Tsotsas. "A Framework and Numerical Solution of the Drying Process in Porous Media by Using a Continuous Model." International Journal of Chemical Engineering 2019 (April 1, 2019): 1–16. http://dx.doi.org/10.1155/2019/9043670.

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The modelling and numerical simulation of the drying process in porous media are discussed in this work with the objective of presenting the drying problem as the system of governing equations, which is ready to be solved by many of the now widely available control-volume-based numerical tools. By reviewing the connection between the transport equations at the pore level and their up-scaled ones at the continuum level and then by transforming these equations into a format that can be solved by the control volume method, we would like to present an easy-to-use framework for studying the drying

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Hu, Jian Jun, Quan Guo Zhang, and Hao Huang. "Experimental Research and Regression Analysis for Constant Temperature Drying of Wheat Straw." Advanced Materials Research 194-196 (February 2011): 1442–48. http://dx.doi.org/10.4028/www.scientific.net/amr.194-196.1442.

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The constant temperature drying experiment on wheat straw at different initial moisture content and drying temperature were made with comprehensive thermal analyzer. The impact of initial moisture content, drying temperature and drying time on wheat straw procedure were reviewed, and the optimum drying result of wheat straw were gotten when initial moisture content was 32.5% and drying temperature was 100°C .The process of wheat straw drying was divided into three sections about preheating, constant temperature and falling rate drying. Regression equations on different sections were establishe

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Dohnalová, Lenka, and Petr Havlásek. "COMPARISON OF DRYING SHRINKAGE AND DRYING CREEP KINETICS IN CONCRETE." Acta Polytechnica CTU Proceedings 15 (December 31, 2018): 12–19. http://dx.doi.org/10.14311/app.2018.15.0012.

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The aim of this paper is to show and compare the time evolution of drying shrinkage and drying creep in concrete from three different perspectives. The first one analyzes the basic equations defined in the most common design codes and prediction models for the description of the long-term behavior of concrete (ACI 209, EC2, Model Code 2010, B3, B4). Next, the evolution of drying creep and shrinkage is examined by processing suitable experimental data available from the database developed at the Northwestern University. Finally, the last point of view investigates the results obtained from the

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Yuwana, Yuwana. "CATFISH DRYING (Clarias Batraclus) USING ‘TEKO BERSAYAP’ SOLAR DRYER." Jurnal Agroindustri 2, no. 1 (2012): 14–20. http://dx.doi.org/10.31186/j.agroind.2.1.14-20.

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Experiment on catfish drying employing ‘Teko Bersayap’ solar dryer was conducted. The result of the experiment indicated that the dryer was able to increase ambient temperature up to 44% and decrease ambient relative humidity up to 103%. Fish drying process followed equations : KAu = 74,94 e-0,03t for unsplitted fish and KAb = 79,25 e-0,09t for splitted fish, where KAu = moisture content of unsplitted fish (%), KAb = moisture content of splitted fish (%), t = drying time. Drying of unsplitted fish finished in 43.995 hours while drying of split fish completed in 15.29 hours. Splitting the fish

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Nadi, F., G. H. Rahimi, R. Younsi, T. Tavakoli, and Z. Hamidi-Esfahani. "Numerical Simulation of Vacuum Drying by Luikov's Equations." Drying Technology 30, no. 2 (2011): 197–206. http://dx.doi.org/10.1080/07373937.2011.595860.

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Kucuk, Haydar, Adnan Midilli, Aydin Kilic, and Ibrahim Dincer. "A Review on Thin-Layer Drying-Curve Equations." Drying Technology 32, no. 7 (2014): 757–73. http://dx.doi.org/10.1080/07373937.2013.873047.

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Jayas, Digvir S., Stefan Cenkowski, Stanislaw Pabis, and William E. Muir. "REVIEW OF THIN-LAYER DRYING AND WETTING EQUATIONS." Drying Technology 9, no. 3 (1991): 551–88. http://dx.doi.org/10.1080/07373939108916697.

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Virág, T., G. Gy Halász, and J. B. Zhelev. "Simulation of continuous drying processes by integral equations." Chemical Engineering Science 44, no. 7 (1989): 1529–38. http://dx.doi.org/10.1016/0009-2509(89)80030-2.

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Alshansky, A. I., and A. L. Klimentyev. "Kinetics of heat and moisture exchange and method for calculating the duration of the convective drying process of natural leather." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 65, no. 4 (2020): 464–75. http://dx.doi.org/10.29235/1561-8358-2020-65-4-464-475.

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Methods for processing experimental data based on generalized variables of the drying process, which characterize the most general patterns of drying in a period of decreasing speed, are considered. A method for processing experimental data based on the expanded level of drying kinetics is presented, which allows obtaining all dependencies for calculating the main parameters of the drying process. Equations are given for determining the densities of heat fluxes, the intensity of moisture evaporation, the temperature of the material, and the duration of drying for the period of falling speed. A

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46

Alshansky, A. I., and A. L. Klimentyev. "Kinetics of heat and moisture exchange and method for calculating the duration of the convective drying process of natural leather." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 65, no. 4 (2020): 464–75. http://dx.doi.org/10.29235/1561-8358-2020-65-4-464-475.

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Methods for processing experimental data based on generalized variables of the drying process, which characterize the most general patterns of drying in a period of decreasing speed, are considered. A method for processing experimental data based on the expanded level of drying kinetics is presented, which allows obtaining all dependencies for calculating the main parameters of the drying process. Equations are given for determining the densities of heat fluxes, the intensity of moisture evaporation, the temperature of the material, and the duration of drying for the period of falling speed. A

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Itaya, Yoshinori, Hiroya Hanai, Nobusuke Kobayashi, and Tsuguhiko Nakagawa. "Drying-Induced Strain-Stress and Deformation of Thin Ceramic Plate." ChemEngineering 4, no. 1 (2020): 9. http://dx.doi.org/10.3390/chemengineering4010009.

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Ceramic thin plates are applied to several industrial purposes including electronic materials and sensors. Drying-induced shrinkage and strain-stress formation of a ceramic thin plate were studied experimentally and theoretically. A kaolin thin plate molded into 10 mm × 30 mm × 1 mm was dried in a hot air stream, and the drying characteristics and deformation were examined. Modeling was also performed to predict the behavior. Heat and moisture transfer conservation equations and constitution equations based on viscoelastic strain-stress were simultaneously solved by a finite element method. A

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Amer, Baher M. A., and Houssam Chouikhi. "Smartphone Application Using a Visual Programming Language to Compute Drying/Solar Drying Characteristics of Agricultural Products." Sustainability 12, no. 19 (2020): 8148. http://dx.doi.org/10.3390/su12198148.

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Drying is an important process for food security. A software application on a smartphone can be used to prevent mistakes while carrying out the calculations for drying investigation and research using several mathematical equations. The objective of this research was to develop a software program on cellphones depending on some of the important mathematical equations which are used to conduct some of the drying/solar drying characteristics to assist researchers and engineers who work in the food engineering field for sustainable development. This innovative software application can be installe

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Shingisov, A. U., R. S. Alibekov, S. U. Yerkebayeva, E. A. Gabrilyants, and U. U. Tastemirova. "Vacuum Drying of Apple, Pear and Raspberry Varieties Growing in the Southern Regions of the Republic of Kazakhstan." Journal of Almaty Technological University, no. 4 (December 22, 2022): 19–25. http://dx.doi.org/10.48184/2304-568x-2022-4-19-25.

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The article develops a methodology for conducting experimental studies on vacuum drying of varieties of apples, pears and raspberries growing in the southern regions of the Republic of Kazakhstan. Experimental studies and analysis of the influence of regime parameters on the drying process of selected products have been carried out, depending on the height of the layer of the dried material, the degree of grinding of raw materials, the degree of heating of the dried material and the pressure of the medium in the evacuated chamber.The analysis of the obtained drying curves for apples, pears and

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Pereira, Joan Carlos Alves, Wilton Pereira da Silva, Josivanda Palmeira Gomes, et al. "Continuous and Intermittent Drying of Osmotically Pretreated Melon Pieces: Analysis of Energy Savings and Preservation of Bioactive Compounds." Agriculture 15, no. 5 (2025): 480. https://doi.org/10.3390/agriculture15050480.

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The objective of this study was to carry out a study on continuous and intermittent drying (intermittency ratio α = 2/3) of osmotically pretreated melon pieces, cut in the form of a parallelepiped. An osmotic dehydration pretreatment was performed using an incubator with mechanical shaking. Drying processes were carried out using an oven with forced air circulation at temperatures of 50 and 70 °C. The data were modeled by means of empirical equations, in order to compare the drying kinetics and analyze the impact of the intermittent process on energy savings and preservation of bioactive compo

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