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Homogeneous water nucleation: Experimental study on pressure and carrier gas effects

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F20%3A00535561" target="_blank" >RIV/61388998:_____/20:00535561 - isvavai.cz</a>

  • Result on the web

    <a href="https://aip.scitation.org/doi/10.1063/5.0021477" target="_blank" >https://aip.scitation.org/doi/10.1063/5.0021477</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1063/5.0021477" target="_blank" >10.1063/5.0021477</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Homogeneous water nucleation: Experimental study on pressure and carrier gas effects

  • Original language description

    Homogeneous nucleation of water is investigated in argon and in nitrogen at about 240 K and 0.1 MPa, 1 MPa, and 2 MPa by means of a pulse expansion wave tube. The surface tension reduction at high pressure qualitatively explains the observed enhancement of the nucleation rate of water in argon as well as in nitrogen. The differences in nucleation rates for the two mixtures at high pressure are consistent with the differences in adsorption behavior of the different carrier gas molecules. At low pressure, there is not enough carrier gas available to ensure the growing clusters are adequately thermalized by collisions with carrier gas molecules so that the nucleation rate is lower than under isothermal conditions. This reduction depends on the carrier gas, pressure, and temperature. A qualitative agreement between experiments and theory is found for argon and nitrogen as carrier gases. As expected, the reduction in the nucleation rates is more pronounced at higher temperatures. For helium as the carrier gas, non-isothermal effects appear to be substantially stronger than predicted by theory. The critical cluster sizes are determined experimentally and theoretically according to the Gibbs-Thomson equation, showing a reasonable agreement as documented in the literature. Finally, we propose an empirical correction of the classical nucleation theory for the nucleation rate calculation. The empirical expression is in agreement with the experimental data for the analyzed mixtures (water-helium, water-argon, and water-nitrogen) and thermodynamic conditions (0.06 MPa-2 MPa and 220 K-260 K).

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20303 - Thermodynamics

Result continuities

  • Project

    <a href="/en/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Research centre for low-carbon energy technologies</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Chemical Physics

  • ISSN

    0021-9606

  • e-ISSN

  • Volume of the periodical

    153

  • Issue of the periodical within the volume

    16

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    15

  • Pages from-to

    164303

  • UT code for WoS article

    000586714400003

  • EID of the result in the Scopus database

    2-s2.0-85094653188