Mathematical Modeling for Vacuum Infrared Radiation Drying of Pyinkado (Xylia Xylocarpa)

Document Type : Full Length Research Article

Authors

1 Faculty of Mechanical Engineering, Nong Lam University, Ho Chi Minh city, Vietnam

2 Faculty of Forestry, Nong Lam University, Ho Chi Minh city, Vietnam

Abstract

The main goal is to build a mathematical model to describe the heat and moisture transfer process and experiment to determine the appropriate vacuum drying mode for Pyinkado wood material. According to the objective above, research has been conducted using the infrared vacuum drying method for Pyinkado, and a mathematical model has been developed to represent the heat and moisture transfer processes during the drying process. Solve mathematical models using the finite element method. Comsol Multiphysics software is used to simulate the drying process. Results are shown through images and temperature and humidity distribution charts. Experimental results recorded the distribution of temperature and humidity during the vacuum drying process of Pyinkado, compared with results calculated from a mathematical model with profiles and trends consistent with the drying experiment. The largest average error when drying using the infrared radiation vacuum method is less than 5%. Determine the appropriate technological parameters for the vacuum drying process of wood with a thickness of 50 mm. The parameters are as follows: drying temperature Ts = 58.9 °C, pressure p = 0.2 bar, and infrared radiation intensity Phn = 625– 641 W/m2.

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References

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History

  • Receive Date: 29 May 2023
  • Revise Date: 07 January 2024
  • Accept Date: 09 January 2024

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