Numerical modeling of dynamics of steam superheaters

The paper presents a numerical solution of transient flow in superheaters in the state of parallel- and counter flow. The time and space temperature distributions of the working media and separating wall were evaluated. The partial differential equations describing the mentioned heat transfer were a...

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Bibliographic Details
Published inEnergy (Oxford) Vol. 26; no. 12; pp. 1175 - 1184
Main Author Zima, Wiesɬaw
Format Journal Article Conference Proceeding
LanguageEnglish
Published Oxford Elsevier Ltd 01.12.2001
Elsevier Science
Subjects
Applied sciences
Devices using thermal energy
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Heat exchangers (included heat transformers, condensers, cooling towers)
Temperature distribution
Superheater
Heat exchanger
Transient flow
Thermodynamic analysis
Mathematical model
Water vapor
Heat transfer
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Summary:The paper presents a numerical solution of transient flow in superheaters in the state of parallel- and counter flow. The time and space temperature distributions of the working media and separating wall were evaluated. The partial differential equations describing the mentioned heat transfer were also solved using the method of lines coupled with Gear's method. Furthermore, the above temperature distributions were obtained by solving the mathematical model describing the conservation laws of mass, momentum and energy. Obtained results were compared to the suggested approximate solution.
ISSN:0360-5442
DOI:10.1016/S0360-5442(01)00078-0