CFD modelling of NPP horizontal and vertical steam generators (SGEN)

SGEN summary report: CFD modeling of horizontal steam generators

Timo Pättikangas, Jarto Niemi, Ville Hovi, Tommi Rämä, Timo Toppila

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

Abstract

A porosity model for the secondary side of the steam generator is formulated by following the ideas presented earlier by Stosic and Stevanovic [Num. Heat Transfer, Part B, 41, 263 (2002)]. Porosity model means that the secondary side geometry is not described in detail but the tubes of the primary circuit are modeled as sources of enthalpy and as pressure loss. The Euler-Euler multiphase model of the Fluent CFD code is used, where conservation laws for mass, momentum and enthalpy of liquid and vapor are included. The source term for enthalpy is obtained by performing an APROS simulation of the primary circuit. The source terms for the conservation equations are implemented by using User-Defined Functions of Fluent. The model is tested by performing test simulations for a horizontal steam generator of a VVER-440 nuclear power plant. The main features of the test simulation are discussed.
Original languageEnglish
Title of host publicationSAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010
Subtitle of host publicationInterim Report
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages191-204
ISBN (Electronic)978-951-38-7267-0
ISBN (Print)978-951-38-7266-3
Publication statusPublished - 2009
MoE publication typeNot Eligible

Publication series

NameVTT Tiedotteita - Research Notes
PublisherVTT
Number2466
ISSN (Print)1235-0605
ISSN (Electronic)1455-0865

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Steam generators
Computational fluid dynamics
Enthalpy
Conservation
Porosity
Networks (circuits)
Nuclear power plants
Momentum
Vapors
Heat transfer
Geometry
Liquids

Cite this

Pättikangas, T., Niemi, J., Hovi, V., Rämä, T., & Toppila, T. (2009). CFD modelling of NPP horizontal and vertical steam generators (SGEN): SGEN summary report: CFD modeling of horizontal steam generators. In SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010: Interim Report (pp. 191-204). Espoo: VTT Technical Research Centre of Finland. VTT Tiedotteita - Research Notes, No. 2466
Pättikangas, Timo ; Niemi, Jarto ; Hovi, Ville ; Rämä, Tommi ; Toppila, Timo. / CFD modelling of NPP horizontal and vertical steam generators (SGEN) : SGEN summary report: CFD modeling of horizontal steam generators. SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010: Interim Report. Espoo : VTT Technical Research Centre of Finland, 2009. pp. 191-204 (VTT Tiedotteita - Research Notes; No. 2466).
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abstract = "A porosity model for the secondary side of the steam generator is formulated by following the ideas presented earlier by Stosic and Stevanovic [Num. Heat Transfer, Part B, 41, 263 (2002)]. Porosity model means that the secondary side geometry is not described in detail but the tubes of the primary circuit are modeled as sources of enthalpy and as pressure loss. The Euler-Euler multiphase model of the Fluent CFD code is used, where conservation laws for mass, momentum and enthalpy of liquid and vapor are included. The source term for enthalpy is obtained by performing an APROS simulation of the primary circuit. The source terms for the conservation equations are implemented by using User-Defined Functions of Fluent. The model is tested by performing test simulations for a horizontal steam generator of a VVER-440 nuclear power plant. The main features of the test simulation are discussed.",
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Pättikangas, T, Niemi, J, Hovi, V, Rämä, T & Toppila, T 2009, CFD modelling of NPP horizontal and vertical steam generators (SGEN): SGEN summary report: CFD modeling of horizontal steam generators. in SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010: Interim Report. VTT Technical Research Centre of Finland, Espoo, VTT Tiedotteita - Research Notes, no. 2466, pp. 191-204.

CFD modelling of NPP horizontal and vertical steam generators (SGEN) : SGEN summary report: CFD modeling of horizontal steam generators. / Pättikangas, Timo; Niemi, Jarto; Hovi, Ville; Rämä, Tommi; Toppila, Timo.

SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010: Interim Report. Espoo : VTT Technical Research Centre of Finland, 2009. p. 191-204 (VTT Tiedotteita - Research Notes; No. 2466).

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

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AU - Rämä, Tommi

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AB - A porosity model for the secondary side of the steam generator is formulated by following the ideas presented earlier by Stosic and Stevanovic [Num. Heat Transfer, Part B, 41, 263 (2002)]. Porosity model means that the secondary side geometry is not described in detail but the tubes of the primary circuit are modeled as sources of enthalpy and as pressure loss. The Euler-Euler multiphase model of the Fluent CFD code is used, where conservation laws for mass, momentum and enthalpy of liquid and vapor are included. The source term for enthalpy is obtained by performing an APROS simulation of the primary circuit. The source terms for the conservation equations are implemented by using User-Defined Functions of Fluent. The model is tested by performing test simulations for a horizontal steam generator of a VVER-440 nuclear power plant. The main features of the test simulation are discussed.

M3 - Chapter or book article

SN - 978-951-38-7266-3

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BT - SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010

PB - VTT Technical Research Centre of Finland

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Pättikangas T, Niemi J, Hovi V, Rämä T, Toppila T. CFD modelling of NPP horizontal and vertical steam generators (SGEN): SGEN summary report: CFD modeling of horizontal steam generators. In SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010: Interim Report. Espoo: VTT Technical Research Centre of Finland. 2009. p. 191-204. (VTT Tiedotteita - Research Notes; No. 2466).