A Three-dimensional Numerical Simulation of Transient Heat and Mass Transfer inside a Single Rice Kernel during the Drying Process

Abstract This study investigated the numerical analysis of heat and mass transfer during solar drying of cocoa beans with firebrick thermal storage material (FTSM). The continuity, momentum, energy, and species equations were solved for a three-dimensional ellipsoidal cocoa-bean using the Finite Volume Method with the aid of ANSYS, a Computational Fluid Dynamics software. The simulated and experimental maximum product (Cocoa) temperatures of 53 and 53.5 °C respectively were in agreement with each other. The results obtained in this study will help the stakeholders in the cooa processing industries in the design of the drying system, selection of suitable drying conditions, and prediction of heat and mass transfer in the drying process of cocoa, enhancement of better quality attributes such as colour and flavour, reduction in the cost of design and time in the drying process.

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NUMERICAL SIMULATION OF HEAT AND MASS TRANSFER DURING SPRAY FREEZE DRYING PROCESS

International Symposium on Advances in Computational Heat Transfer ◽

10.1615/ichmt.2008.cht.2250 ◽

2008 ◽

Author(s):

Chi Sung Song ◽

Chang-Dae Park ◽

Chan Ho Song

Keyword(s):

Numerical Simulation ◽

Mass Transfer ◽

Heat And Mass Transfer ◽

Freeze Drying ◽

Drying Process ◽

Spray Freeze Drying

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Numerical Comparison of Triangular and Sinusoidal External Vibration Effects on the 3D Porous Drying Process

Engineering, Technology & Applied Science Research ◽

10.48084/etasr.3486 ◽

2020 ◽

Vol 10 (2) ◽

pp. 5554-5560

Author(s):

N. Ben Khedher ◽

R. Ramzi ◽

I. A. Alatawi

Keyword(s):

Mass Transfer ◽

Porous Medium ◽

Heat And Mass Transfer ◽

Control Volume ◽

Saturation Pressure ◽

Three Dimensional ◽

Mass Transfer Process ◽

Numerical Comparison ◽

Drying Process ◽

External Vibration

Drying is one of the most energy-intensive industrial processes. One of the techniques aiming to reduce energy consumption is the vibration technique which is generally employed to intensify the heat and mass transfer process. In this respect, this paper presents a three-dimensional numerical model to study the external vibration effects on the drying process of a porous medium. The model is based on a comparison of heat and mass transfer phenomena that arise during vibrating drying of unsaturated porous medium for two cases: triangular and sinusoidal external vibrations. The three-dimensional unstructured Control Volume Finite Element Method (CVFEM) is employed to simulate the vibrating drying. Numerical results of the time evolution of temperature, liquid saturation, pressure, and water content are compared and analyzed for the two cases.

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Numerical Simulation Analysis of Heat and Mass Transfer during Drying of Jujubes

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.468-471.2323 ◽

2012 ◽

Vol 468-471 ◽

pp. 2323-2327

Author(s):

Xiao Kang Yi ◽

Wen Fu Wu ◽

He Lei Cui ◽

Jun Xing Li

Keyword(s):

Numerical Simulation ◽

Mass Transfer ◽

Heat And Mass Transfer ◽

Simulation Analysis ◽

Internal Heat ◽

Simulation Software ◽

Drying Process ◽

Finite Volume Discretization ◽

Transfer Equations ◽

Labview Program

A finite volume discretization method for solving the heat and mass transfer equations of drying jujubes was developed in this paper. Combined with the Labview program, development of a numerical simulation software for internal heat and mass transfer during drying of jujubes, and simulation of the drying process on the jujubes using the software. The results showed that the simulation results and experimental data were consistent.

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