Modelling of Diffusion Process in Vacuum Drying of Propellants

Authors

DOI:

https://doi.org/10.3849/aimt.01850

Keywords:

drying kinetics, program MATLAB, propellants, vacuum drying

Abstract

One crucial step in the propellant-making process that takes a lot of time and energy is drying. The study of inert propellants' vacuum drying behaviours – which mimics those of real propellants – is the main focus of this work. This study presents the development of analytical and numerical models for the vacuum drying of inert pro-pellants, which were validated through an in-house vacuum drying experiment. The calculation of effective diffusivity, a crucial parameter characterising the rate of solvent vapour transfer during the vacuum drying of inert propellant samples, is one of the outcomes of this work. It involves removing liquid solvents from the texture of a propellant. Conclusions and suggestions for technical practice are developed based on the studyʼs findings.

Author Biographies

  • Bui Thanh Phan, University of Defence

    PhD student of the Department of Mechanical Engineering

  • Lenka Dobšáková, University of Defence

    Department of Mechanical Engineering

  • Vladimír Horák, University of Defence

    Department of Mechanical Engineering

References

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KIM, S.S. and S.R. BLOWMILK. Effective Moisture Diffusivity of Plain Yo-ghurt Undergoing Microwave Vacuum Drying. Journal of Food Engineering, 1995, 24(1), pp. 137-148. DOI 10.1016/0260-8774(94)P1614-4.

BOROS, C. and P. KONEČNÝ. Development of Wax Fuel Grain for Hybrid Rocket Motor. Advances in Military Technology, 2009, 4(2), pp. 5-11. ISSN 1802-2308.

TIKHONOV, A.N. and A.A. SAMARSKII. Equations of Mathematical Phys-ics. New York: Macmillan Publishers, 1963. ISBN 0-08-010226-3.

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MathWorks. What Is the Genetic Algorithm? [online]. [viewed 2023-07-10]. Available from: https://www.mathworks.com/help/gads/what-is-the-genetic-algorithm.html

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Published

29-10-2023

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Section

Research Paper

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How to Cite

Modelling of Diffusion Process in Vacuum Drying of Propellants. (2023). Advances in Military Technology, 18(2), 195-206. https://doi.org/10.3849/aimt.01850

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