B 16 Baidakov, V. G. Nucleation in ethane-nitrogen solutions. I. Homogeneous nucleation [Electronic resource] / V. G. Baidakov, A. S. Pankov // International Journal of Heat and Mass Transfer. - 2015. - Vol. 86. - С. 930-935. - Bibliogr. : p. 935 (32 ref.) Рубрики: ФИЗИКА Кл.слова (ненормированные): CLASSICAL NUCLEATION THEORY -- METHOD OF LIFETIME MEASUREMENT -- ETHANE-NITROGEN SOLUTION Аннотация: The method of lifetime measurement is used to investigate the kinetics of spontaneous boiling-up of ethane-nitrogen solutions. Superheating temperatures Tn of solutions have been determined in experiments at pressure p = 1.0, 1.6 MPa and nitrogen concentration in ethane x = 0.5, 1.5 mol% in the nucleation rate range J = 1 × 104-2 × 108 s-1 m-3. At J > 3 × 106 s-1 m-3 one can observe a satisfactory agreement between experimental data and homogeneous nucleation theory with respect to the temperature dependence of the nucleation rate and a systematic disagreement in the superheating temperature. At x = 0.5 mol% attainable superheating temperatures achieved by experiment coincide within the experimental error with theoretical values, and at x = 1.5 mol% exceed them by approximately 1.7 K. It is shown that one possible reason of such "excess superheating" of a solution beyond the theoretical value of Tn may be the absence of adsorption equilibrium at the critical bubble-ambient solution interface \\\\expert2\\nbo\\International Journal of Heat and Mass Transfer\\2015, v. 86, p.930-935.pdf |