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Pool Boiling of Cryogenic Nitrogen, Oxygen, and Their Mixtures

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00358017" target="_blank" >RIV/68407700:21220/22:00358017 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.3303/CET2294146" target="_blank" >https://doi.org/10.3303/CET2294146</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3303/CET2294146" target="_blank" >10.3303/CET2294146</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Pool Boiling of Cryogenic Nitrogen, Oxygen, and Their Mixtures

  • Original language description

    Pool boiling of cryogenic nitrogen and oxygen is important, as both substances represent more than 99 % of all particles in the atmosphere. Boiling of cryogens is commonly utilized in gas processing, air separation, cooling, or superconducting systems. The so-called chilldown is a characteristic process when handling cryogens, which occurs when a surface at ambient temperature gets into contact with a cold cryogenic liquid. The chilldown is accompanied by transient film boiling. Investigating critical heat fluxes and film boiling of cryogens is thus more important compared with non-cryogenic liquids. This contribution deals with heat transfer during pool boiling of cryogenic nitrogen, oxygen, and nitrogen–oxygen mixtures. Knowledge of heat transfer coefficients and of critical heat fluxes is crucial for qualified design of cryogenic apparatuses and for improved handling of cryogens. In this contribution, pool boiling performance of pure nitrogen, oxygen, and their mixtures is investigated and suitable predictive correlations for the heat transfer coefficient and critical heat flux are analyzed. It was found that variations of thermophysical properties with composition are quite weak and sufficiently linear for nitrogen– oxygen mixtures. The pure-fluid correlation of McNelly is shown to be suitable for HTC estimation during boiling of pure nitrogen and oxygen. The mixture correlation of Thome was found to be suitable for nitrogen–oxygen mixtures.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database

  • CEP classification

  • OECD FORD branch

    20402 - Chemical process engineering

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

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2022

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    CHEMICAL ENGINEERING TRANSACTIONS

  • ISSN

    2283-9216

  • e-ISSN

    2283-9216

  • Volume of the periodical

    94

  • Issue of the periodical within the volume

    September

  • Country of publishing house

    IT - ITALY

  • Number of pages

    6

  • Pages from-to

    877-882

  • UT code for WoS article

  • EID of the result in the Scopus database

    2-s2.0-85139346999