B 16 Baidakov, V. G. Nucleation in ethane–nitrogen solutions. II. Heterogeneous and initiated nucleation [Electronic resource] / V. G. Baidakov, A. S. Pankov // International Journal of Heat and Mass Transfer. - 2015. - Vol. 86. - С. 936-942. - Bibliogr. : p. 942 (18 ref.) Рубрики: ФИЗИКА Кл.слова (ненормированные): NUCLEATION -- METHOD OF CONTINUOUS PRESSURE LOWERING -- HETEROGENEOUS NUCLEATION -- SUPERHEATING Аннотация: The method of continuous pressure decrease has been used to investigate limiting (attainable) stretches of ethane–nitrogen solutions. Experiments were conducted at temperatures of 260, 266, 270, and 276 K and at nitrogen concentrations in the solution of 0.5 and 1.5 mol%. Pressure decrease rates were taken in the range 0.01–0.1 MPa/s. Distribution functions of liquid boiling-up events in dependence on pressure have been obtained allowing one to determine the most probable (attainable) pressures of liquid boiling-up and the nucleation rate. The results are interpreted in terms of nucleation thermodynamics and kinetics in liquids on a solid surface containing inclusions that initiate the boiling-up processes. It is shown that for realizing homogeneous nucleation it is not necessarily required that the wettability is close to the ideal one. The reasons for the discrepancy between experimental data and predictions of homogeneous nucleation theory at nucleation rates J < 3 × 106 s−1 m−3 are discussed. \\\\expert2\\nbo\\International Journal of Heat and Mass Transfer\\2015, v. 86, p.936-942.pdf |