Modeling binary vapor–liquid equilibrium data containing perfluorocarbons using the Peng–Robinson and the PC-SAFT equations of state
| Autor: | Hamidreza Soltani Panah |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Phase equilibrium Mechanical Engineering Vapor phase Binary number Thermodynamics 02 engineering and technology Building and Construction Flory–Huggins solution theory 010402 general chemistry 01 natural sciences 0104 chemical sciences 020401 chemical engineering Critical point (thermodynamics) Vapor–liquid equilibrium Binary system 0204 chemical engineering |
| Zdroj: | International Journal of Refrigeration. 85:13-26 |
| ISSN: | 0140-7007 |
| DOI: | 10.1016/j.ijrefrig.2017.09.008 |
| Popis: | In this communication, thermodynamic modeling of twenty four binary systems containing perfluorocarbon compounds is studied using the Peng–Robinson and the PC-SAFT equations of state. Interaction parameters of binary systems were estimated through fitting to experimental equilibrium pressures and vapor phase compositions. Very good results were obtained through using temperature-independent interaction parameter for both equations of state. According to the results, percent deviations in pressure were varying between 0.5 and 7.7 for the PR EoS and 0.2 and 6.5 for the PC-SAFT EoS. Also, percent deviations in vapor phase composition were varying between 0.1 and 6.6 for the PR EoS and 0.1 and 7.4 for the PC-SAFT EoS. Furthermore, when binary system has critical point, phase equilibrium calculations using the PR EoS do not converge through common methods. For solving this problem, a solution is suggested that was absolutely effective on all the studied systems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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