Calculation of multicomponent vapor–liquid critical point using the Dividing Rectangles global optimization algorithm
Autor: | Milad M. Rabieh, Bahram Nasernejad, Hamid Modarres, Mitra Dadvar |
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Rok vydání: | 2017 |
Předmět: |
Effi
Fundamental thermodynamic relation Computer program 010405 organic chemistry General Chemical Engineering Energy Engineering and Power Technology 02 engineering and technology General Chemistry Geotechnical Engineering and Engineering Geology 01 natural sciences 0104 chemical sciences symbols.namesake Fuel Technology 020401 chemical engineering Critical point (thermodynamics) Helmholtz free energy Simulated annealing Tangent space symbols Applied mathematics 0204 chemical engineering Global optimization Mathematics |
Zdroj: | Petroleum Science and Technology. 35:910-921 |
ISSN: | 1532-2459 1091-6466 |
DOI: | 10.1080/10916466.2011.574179 |
Popis: | In this paper, the Dividing Rectangles (D.R.) global optimization technique is used to predict the critical temperature and pressure for multicomponent systems. The D.R. optimization algorithm is a fast and reliable optimization method without any need for adjustable parameters, initial guesses or objective function derivation. For calculating the critical point the tangent plane distance (TPD) in terms of the Helmholtz energy is selected. The Peng Robinson (PR) equation of state is applied for determining thermodynamic relations. The procedure of the critical point calculation by means of global optimization is described stepwise in order to clarify the concept and method of programing. The D.R.-based computer program is tested for some multicomponent systems and the results are compared with the Simulated Annealing (SA) global optimization method and with experimental data. The results indicated that the number of the objective function calls (the main parameter that increases the speed and effi... |
Databáze: | OpenAIRE |
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