Teplofizika vysokikh temperatur
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Teplofizika vysokikh temperatur, 2019, Volume 57, Issue 3, Pages 383–389
DOI: https://doi.org/10.1134/S0040364419030013
(Mi tvt10950)
 

This article is cited in 3 scientific papers (total in 3 papers)

Thermophysical Properties of Materials

Equations for engineering calculations of the thermodynamic properties of high-temperature dissociated steam

R. Z. Aminov, A. A. Gudym

Saratov Scientific Center of the Russian Academy of Sciences
Full-text PDF (129 kB) Citations (3)
References:
Abstract: A system of equations is developed to calculate the properties of dissociated steam in the temperature and pressure ranges of $1250$$3400$ K and $0.01$$10.00$ MPa. These equations are based on detailed tables for dissociated steam compiled for a mixture of atoms of hydrogen and oxygen, hydroxyl $\rm OH$, molecules of hydrogen and oxygen, and steam at a reference temperature of $0$ K. Since the expansion of dissociated steam in a thermal engine results in its transformation into its common form, the equations for the parameters of dissociated or nondissociated steam uses the same reference temperature, i.e., the water triple point of $273.16$ K. A system of equations for the calculation of dissociated-steam properties is derived with the generalized thermodynamic equation, which takes into account the change in the chemical potential and the composition of the mixture during steam dissociation, the Gibbs energy equation, differential thermodynamic equations, and equations for calculation the properties of nondissociated steam. To minimize the deviation of the steam properties calculated by the proposed equations from the table values, the considered temperature and pressure ranges have been divided into three regions. The deviation of the steam properties calculated by the proposed equations from the table values does not exceed $0.05$$0.09\%$. The developed equations can be used in calculations of the processes of cooling of burners and combustion chambers during the combustion of hydrogen–oxygen mixtures, as well as cycles of heat engines that use high-temperature steam as a working fluid at temperatures over $1250$ K.
Funding agency Grant number
Russian Science Foundation 15-19-10027
The work was funded by the Russian Scientific Foundation, project no. 15-19-10027.
Received: 24.10.2017
Revised: 09.04.2018
Accepted: 25.12.2018
English version:
High Temperature, 2019, Volume 57, Issue 3, Pages 348–354
DOI: https://doi.org/10.1134/S0018151X19030015
Bibliographic databases:
Document Type: Article
UDC: 536.7+621.1
Language: Russian
Citation: R. Z. Aminov, A. A. Gudym, “Equations for engineering calculations of the thermodynamic properties of high-temperature dissociated steam”, TVT, 57:3 (2019), 383–389; High Temperature, 57:3 (2019), 348–354
Citation in format AMSBIB
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\paper Equations for engineering calculations of the thermodynamic properties of high-temperature dissociated steam
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  • https://www.mathnet.ru/eng/tvt/v57/i3/p383
  • This publication is cited in the following 3 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Teplofizika vysokikh temperatur Teplofizika vysokikh temperatur
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