Estimation of Thermochemical Properties of Propellants Using Peng-Robinson Equation of State

Authors

  • Luciana Amorim da Silva Instituto Militar de Engenharia – Departamento de Ensino e Pesquisa – Seção de Engenharia Química – Rio de Janeiro/ RJ – Brazil. https://orcid.org/0000-0002-0974-604X
  • Ana Carolina Marotti Dias Instituto Militar de Engenharia – Departamento de Ensino e Pesquisa – Seção de Engenharia Química – Rio de Janeiro/ RJ – Brazil. https://orcid.org/0000-0003-4217-671X
  • Hector Gabriel Teixeira Volskis Instituto Militar de Engenharia – Departamento de Ensino e Pesquisa – Seção de Engenharia Mecânica – Rio de Janeiro/RJ – Brazil. https://orcid.org/0009-0000-1863-2485
  •  José Daniel Langendorf da Silva Instituto Militar de Engenharia – Departamento de Ensino e Pesquisa – Seção de Engenharia Química – Rio de Janeiro/ RJ – Brazil. https://orcid.org/0000-0001-8740-9922
  • Aline Cardoso Anastacio Instituto Militar de Engenharia – Departamento de Ensino e Pesquisa – Seção de Engenharia Química – Rio de Janeiro/ RJ – Brazil. https://orcid.org/0000-0001-9204-1675
  • Fernando Cunha Peixoto Instituto Militar de Engenharia – Departamento de Ensino e Pesquisa – Seção de Engenharia Química – Rio de Janeiro/ RJ – Brazil. https://orcid.org/0000-0003-1506-9548

Keywords:

Internal ballistics, Barreled guns, Ballistic cycle

Abstract

Several aspects make nitrocellulose based powders adequate as a solid propellant for rockets and missiles and the preferable propellant to be used in firearms and artillery: it produces less smoke and less fouling than other propellants; its burning rate shows a well-defined relation to pressure and the composition of the gaseous mixture resulting from its decomposition by burning can be predicted with relatively high levels of accuracy. This last feature, if coupled with adequate thermodynamic models, leads to a reliable framework for the simulation of internal ballistics and, ultimately, to an efficient design. Some simpler models use an ideal gas approach, which is obviously not adequate, and some others perform corrections based on the Virial Equation of S tate for sake of algebraic simplicity. This work employs the Peng-Robinson equation of state to model the pressure-volume-temperature (PVT) behavior of the gases produced during the burning reaction, once it is known to be accurate in the high pressures obtained inside combustion chambers. The results were compared to experimental data obtained in a closed vessel device and showed that the Peng-Robinson equation of state could predict the chamber pressure with higher accuracy.


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Published

2023-11-26

Issue

Vol. 15 (2023)

Section

Original Papers

License

Copyright (c) 2023 Luciana Amorim da Silva, Ana Carolina Marotti Dias, Hector Gabriel Teixeira Volskis,  José Daniel Langendorf da Silva, Aline Cardoso Anastacio, Fernando Cunha Peixoto

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

This work is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0. Authors are free to Share (copy and redistribute the material in any medium or format) and Adapt (remix, transform, and build upon the material for any purpose, even commercially). JATM allow the authors to retain publishing rights without restrictions.