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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-75996f41-7ac2-4f68-ad27-5efa77f04d6d

Czasopismo

Chemical and Process Engineering

Tytuł artykułu

A Mechanistic Model of a Passive Autocatalytic Hydrogen Recombiner

Autorzy Rożeń, A. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
Abstrakty
EN A passive autocatalytic hydrogen recombiner (PAR) is a self-starting device, without operator action or external power input, installed in nuclear power plants to remove hydrogen from the containment building of a nuclear reactor. A new mechanistic model of PAR has been presented and validated by experimental data and results of Computational Fluid Dynamics (CFD) simulations. The model allows to quickly and accurately predict gas temperature and composition, catalyst temperature and hydrogen recombination rate. It is assumed in the model that an exothermic recombination reaction of hydrogen and oxygen proceeds at the catalyst surface only, while processes of heat and mass transport occur by assisted natural and forced convection in non-isothermal and laminar gas flow conditions in vertical channels between catalyst plates. The model accounts for heat radiation from a hot catalyst surface and has no adjustable parameters. It can be combined with an equation of chimney draft and become a useful engineering tool for selection and optimisation of catalytic recombiner geometry.
Słowa kluczowe
PL wodór   kataliza   przepływ laminarny   konwekcja naturalna   konwekcja wymuszona  
EN hydrogen   catalysis   laminar flow   natural convection   forced convection  
Wydawca Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
Czasopismo Chemical and Process Engineering
Rocznik 2015
Tom Vol. 36, nr 1
Strony 3--19
Opis fizyczny Bibliogr. 27 poz., rys.
Twórcy
autor Rożeń, A.
  • Warsaw University of Technology, Faculty of Chemical and Process Engineering, Waryńskiego 1, 00-645 Warszawa, Poland, a.rozen@ichip.pw.edu.pl
Bibliografia
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Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-75996f41-7ac2-4f68-ad27-5efa77f04d6d
Identyfikatory
DOI 10.1515/cpe-2015-0001