TITLE:
Study of the Thermodynamic Properties of Thermal Plasmas of Fluoroalkylamine-Air Mixtures
AUTHORS:
Pafadnam Ibrahim, Kohio Nièssan, Yaguibou Wêpari Charles, Kagoné Abdoul Karim, Koalaga Zacharie, André Pascal
KEYWORDS:
Fluoroalkylamine, Thermodynamic Properties, Chemical Composition, En-ergy Density, Power Flow
JOURNAL NAME:
Advances in Materials Physics and Chemistry,
Vol.13 No.5,
May
31,
2023
ABSTRACT: Knowledge of thermodynamic properties as well as parameters such as energy density and power flowisimportant for modeling thermal plasmas of fluoroalkylamine-air mixtures. In this paper, these thermodynamic properties of fluoroalkylamine-air mixture plasmas are calculated in a temperature range of 500 K to 20,000 K at atmospheric pressure and local thermodynamic equilibrium (LTE). The Gibbs free energy minimization method is used to determine the chemical equilibrium compositions of the plasmas that are needed to calculate the thermodynamic properties. These thermodynamic properties are then used to calculate the energy density and power flow of these plasmas. The variation of the energy density is related to the variations of the densityand mass enthalpy. We notice that, this energy density increases with the percentageof air in the mixture for temperatures higher than 7000 K. The power flow, which dependsalso on density, enthalpy mass and sound speed, increases with the percentage of air in the same temperature range. Energy density and power flow results show that increasing air percentage in the mixture can bemore interesting for damaging gaseous chemical species such as CF2, CO, HCN, and HF appearing at low temperatures with high concentrations.