A computationally efficient and accurate numerical representation of thermodynamic properties of steam condensing steam flow in steam turbines
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F11%3A00367960" target="_blank" >RIV/61388998:_____/11:00367960 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
A computationally efficient and accurate numerical representation of thermodynamic properties of steam condensing steam flow in steam turbines
Original language description
Mathematical modeling of the non-equilibrium condensing transonic steam flow in the complex 3D geometry of a steam turbine is a demanding problem both concerning the physical concepts and the required computational power. Available accurate formulationsof steam properties IAPWS-95 and IAPWS-IF97 require much computation time. For this reason, the modelers often accept the unrealistic ideal-gas behavior. Here we present a computation scheme based on a piecewise, thermodynamically consistent representation of the IAPWS-95 formulation. Density and internal energy are chosen as independent variables to avoid variable transformations and iterations. On the contrary to the previous Tabular Taylor Series Expansion Method, the pressure and temperature are continuous functions of the independent variables, which is a desirable property for the solution of the differential equations of the mass, energy, and momentum conservation for both phases.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BJ - Thermodynamics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
International Conference Experimental Fluid Mechanics 2011
ISBN
978-80-7372-784-0
ISSN
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e-ISSN
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Number of pages
10
Pages from-to
177-186
Publisher name
TU Liberec
Place of publication
Liberec
Event location
Jičín
Event date
Nov 22, 2011
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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