Calculation of The T-X Phase Diagram ın a Two-Component System by using Mean Field Model

Date

2018-12-07

Author

Akay, Özge
Yurtseven, Hasan Hamit

Metadata

Show full item record

Item Usage Stats

70
views

0
downloads

URI

https://hdl.handle.net/11511/78235

Collections

Unverified, Conference / Seminar

Suggestions

OpenMETU
Core

Calculation of the T-P Phase Diagrams for the Halogenomethane Compounds (CCl4-nBrn, n=0, 1, 2, 4) Using the Mean Field Theory Yurtseven, Hasan Hamit; Dogan, E. Kilit (Pleiades Publishing Ltd, 2019-02-01) The T-P phase diagrams of the halogenomethane compounds (CCl4-nBrn, n = 0, 1, 2, 4) are calculated using a mean field model. By expanding the free energy in terms of the order parameters for the transitions of the liquid (L), rhombohedral (R), face-centered cubic (FCC) and monoclinic (M) phases in those compounds, the phase line equations are derived and they are fitted to the experimental data from the literature. This method of calculating the T-P phase diagram is satisfactory to explain the T-P measureme...
Calculation of the P-T phase diagram of nitrogen using a mean field model Enginer, Y.; Algul, G.; Yurtseven, Hasan Hamit (2017-12-20) The P-T phase diagram is calculated at low and moderate pressures by obtaining the phase line equations for the transitions considered in nitrogen using the Landau phenomenological model. For some transitions, a quadratic coupling between the order parameters is taken into account in the expansion of free energies in terms of the order parameters. A quadratic function in T and P is fitted to the experimental P-T data from the literature and the fitted parameters are determined.
CALCULATION OF THE OVERLAP ANGLE IN SLIP ENERGY RECOVERY DRIVES USING A D,Q/ABC MODEL AKPINAR, E; PILLAY, P; Ersak, Aydın (1993-06-01) In this paper, a closed-form expression to estimate the overlap angle in a slip energy recovery system is presented. The prediction of the overlap angle is important in the case of doubly-fed induction motor drives, because of its influence on speed and torque. A closed-form expression is derived using a hybrid model of the induction motor and a dynamic model of the rotor rectifier. The ripple content of the dc link current and the inverter input voltage are neglected. The predicted results obtained using t...
Calculation of the specific heat from the Raman frequency shifts close to the tricritical and second order phase transitions in NH4Cl Kaya, D.; Yurtseven, Hasan Hamit (Elsevier BV, 2007-05-01) This study gives our calculation for the specific heat using our Raman frequency shifts of the v(5) (174 cm(-1)) mode close to the tricritical (P = 1.6 kbar) and second order (P = 2.8 kbar) phase transitions in NH4Cl. For this calculation we use as the values of the critical exponent for the specific heat, a = 0.11 (T < T-c and T > T-c) for the tricritical (T-c = 257.17 K), and a = 0.18 (T < T-c), a = 0.64 (T > T-c) for the second order (T-c = 268 K) phase transitions, which we deduce from our analysis of t...
Calculation of the phase diagram using the Landau-mean-field theory for K2S2O7-KHSO4 Sen, S.; Yurtseven, Hasan Hamit (Elsevier BV, 2009-03-15) In this study a T-X phase diagram of K2S2O7-KHSO4 is calculated using the Landau-mean-field theory. By expanding the free energies of the solid phases of I, II and III in terms of the order parameters, the phase line equations are obtained among the following transitions: liquid-solid I, liquid-solid II, solid I-solid II, solid II solid III and liquid-solid III in K2S2O7-KHSO4.

Citation Formats

Ö. Akay and H. H. Yurtseven, “Calculation of The T-X Phase Diagram ın a Two-Component System by using Mean Field Model,” 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/78235.