Validation of ice condenser model for CFD analysis of VVER-440 type containment
•An ice condenser model is developed in the ANSYS Fluent CFD code.•The developed ice condenser model is validated against two integral tests.•The CFD model is able to predict the general pressure and temperature trends.•Discrepancies are related to the simplifications of the ice condenser model. The...
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| Veröffentlicht in: | Nuclear engineering and design 2019-10, Vol.352, p.110163, Article 110163 |
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| creator | Rämä, T. Toppila, T. Visser, D.C. Siccama, N.B. |
| description | •An ice condenser model is developed in the ANSYS Fluent CFD code.•The developed ice condenser model is validated against two integral tests.•The CFD model is able to predict the general pressure and temperature trends.•Discrepancies are related to the simplifications of the ice condenser model.
The Loviisa nuclear power plant is a unique combination of nuclear technologies, consisting of a VVER-440 reactor and an ice condenser containment. The Loviisa ice condenser is divided into two separate sections contrary to the original design applied in the USA and Japan where the ice condensers consist of a single section. The VICTORIA experimental facility is a 1/15th scale model of the Loviisa containment, which was constructed by Fortum to provide essential experimental information on the thermal-hydraulic behavior of the Loviisa ice condenser containment during small break loss-of-coolant accidents (SBLOCA) and severe accidents.
Computational fluid dynamics (CFD) analyses can give detailed information on the flow, temperature and pressure behavior in the ice condenser containment of Loviisa. NRG has validated CFD models for analyzing the thermal-hydraulics in containments of NPPs, making use of the CFD code ANSYS Fluent. In a joint research project, Fortum and NRG developed an ice condenser model that was integrated in the CFD containment model of NRG. This extended CFD containment model, including the ice condenser model, is validated against two experiments from the VICTORIA facility: experiment 27, in which the facility is pressurized and heated by injection of steam without ice in the ice condensers, and experiment 44, in which steam and helium is injected into the facility with 50% ice loading in the ice condensers.
It is shown that the evolution of pressure, temperature and helium concentrations in the VICTORIA facility can be predicted qualitatively well by the CFD model. Although this is a valuable first step, further development and validation is necessary before the CFD ice condenser model can be applied on real scale for safety analyses of the Loviisa NPP. |
| doi_str_mv | 10.1016/j.nucengdes.2019.110163 |
| format | Article |
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The Loviisa nuclear power plant is a unique combination of nuclear technologies, consisting of a VVER-440 reactor and an ice condenser containment. The Loviisa ice condenser is divided into two separate sections contrary to the original design applied in the USA and Japan where the ice condensers consist of a single section. The VICTORIA experimental facility is a 1/15th scale model of the Loviisa containment, which was constructed by Fortum to provide essential experimental information on the thermal-hydraulic behavior of the Loviisa ice condenser containment during small break loss-of-coolant accidents (SBLOCA) and severe accidents.
Computational fluid dynamics (CFD) analyses can give detailed information on the flow, temperature and pressure behavior in the ice condenser containment of Loviisa. NRG has validated CFD models for analyzing the thermal-hydraulics in containments of NPPs, making use of the CFD code ANSYS Fluent. In a joint research project, Fortum and NRG developed an ice condenser model that was integrated in the CFD containment model of NRG. This extended CFD containment model, including the ice condenser model, is validated against two experiments from the VICTORIA facility: experiment 27, in which the facility is pressurized and heated by injection of steam without ice in the ice condensers, and experiment 44, in which steam and helium is injected into the facility with 50% ice loading in the ice condensers.
It is shown that the evolution of pressure, temperature and helium concentrations in the VICTORIA facility can be predicted qualitatively well by the CFD model. Although this is a valuable first step, further development and validation is necessary before the CFD ice condenser model can be applied on real scale for safety analyses of the Loviisa NPP.</description><identifier>ISSN: 0029-5493</identifier><identifier>EISSN: 1872-759X</identifier><identifier>DOI: 10.1016/j.nucengdes.2019.110163</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Accidents ; CFD ; Computational fluid dynamics ; Computer applications ; Condensers ; Condensers (liquefiers) ; Containment ; Containment thermal-hydraulics ; Fluid dynamics ; Fluid flow ; Helium ; Hydraulics ; Hydrodynamics ; Ice ; Ice condenser ; Loss of coolant accidents ; Mathematical models ; Nuclear energy ; Nuclear engineering ; Nuclear power plants ; Nuclear reactor containment ; Nuclear safety ; Pressure ; Research projects ; Scale models ; Severe accident ; Steam ; Temperature</subject><ispartof>Nuclear engineering and design, 2019-10, Vol.352, p.110163, Article 110163</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright Elsevier BV Oct 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-a7cb13bbae3318eb2701d152626c4c434e021b114a07cab1b8857b147e426a983</citedby><cites>FETCH-LOGICAL-c343t-a7cb13bbae3318eb2701d152626c4c434e021b114a07cab1b8857b147e426a983</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.nucengdes.2019.110163$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27922,27923,45993</link.rule.ids></links><search><creatorcontrib>Rämä, T.</creatorcontrib><creatorcontrib>Toppila, T.</creatorcontrib><creatorcontrib>Visser, D.C.</creatorcontrib><creatorcontrib>Siccama, N.B.</creatorcontrib><title>Validation of ice condenser model for CFD analysis of VVER-440 type containment</title><title>Nuclear engineering and design</title><description>•An ice condenser model is developed in the ANSYS Fluent CFD code.•The developed ice condenser model is validated against two integral tests.•The CFD model is able to predict the general pressure and temperature trends.•Discrepancies are related to the simplifications of the ice condenser model.
The Loviisa nuclear power plant is a unique combination of nuclear technologies, consisting of a VVER-440 reactor and an ice condenser containment. The Loviisa ice condenser is divided into two separate sections contrary to the original design applied in the USA and Japan where the ice condensers consist of a single section. The VICTORIA experimental facility is a 1/15th scale model of the Loviisa containment, which was constructed by Fortum to provide essential experimental information on the thermal-hydraulic behavior of the Loviisa ice condenser containment during small break loss-of-coolant accidents (SBLOCA) and severe accidents.
Computational fluid dynamics (CFD) analyses can give detailed information on the flow, temperature and pressure behavior in the ice condenser containment of Loviisa. NRG has validated CFD models for analyzing the thermal-hydraulics in containments of NPPs, making use of the CFD code ANSYS Fluent. In a joint research project, Fortum and NRG developed an ice condenser model that was integrated in the CFD containment model of NRG. This extended CFD containment model, including the ice condenser model, is validated against two experiments from the VICTORIA facility: experiment 27, in which the facility is pressurized and heated by injection of steam without ice in the ice condensers, and experiment 44, in which steam and helium is injected into the facility with 50% ice loading in the ice condensers.
It is shown that the evolution of pressure, temperature and helium concentrations in the VICTORIA facility can be predicted qualitatively well by the CFD model. Although this is a valuable first step, further development and validation is necessary before the CFD ice condenser model can be applied on real scale for safety analyses of the Loviisa NPP.</description><subject>Accidents</subject><subject>CFD</subject><subject>Computational fluid dynamics</subject><subject>Computer applications</subject><subject>Condensers</subject><subject>Condensers (liquefiers)</subject><subject>Containment</subject><subject>Containment thermal-hydraulics</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Helium</subject><subject>Hydraulics</subject><subject>Hydrodynamics</subject><subject>Ice</subject><subject>Ice condenser</subject><subject>Loss of coolant accidents</subject><subject>Mathematical models</subject><subject>Nuclear energy</subject><subject>Nuclear engineering</subject><subject>Nuclear power plants</subject><subject>Nuclear reactor containment</subject><subject>Nuclear safety</subject><subject>Pressure</subject><subject>Research projects</subject><subject>Scale models</subject><subject>Severe accident</subject><subject>Steam</subject><subject>Temperature</subject><issn>0029-5493</issn><issn>1872-759X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFkF9LwzAUxYMoOKefwYLPrfnXpn0cc1NhMBAdvoUkvZWULplJJ-zb21rx1fty4XLO4Z4fQrcEZwST4r7N3NGA-6ghZhSTKiPjmZ2hGSkFTUVevZ-jGca0SnNesUt0FWOLx6noDG13qrO16q13iW8SayAx3tXgIoRk72voksaHZLl-SJRT3SnaOOp2u9VLyjlO-tPhx9Er6_bg-mt00aguws3vnqO39ep1-ZRuto_Py8UmNYyzPlXCaMK0VsAYKUFTgUlNclrQwnDDGQdMiSaEKyyM0kSXZS404QI4LVRVsjm6m3IPwX8eIfay9ccwfBglpaXgBS5xPqjEpDLBxxigkYdg9yqcJMFyxCRb-UdPjvTkRG9wLiYnDCW-LAQZjQVnoLYBTC9rb__N-AZ3sXqs</recordid><startdate>201910</startdate><enddate>201910</enddate><creator>Rämä, T.</creator><creator>Toppila, T.</creator><creator>Visser, D.C.</creator><creator>Siccama, N.B.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7ST</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><scope>SOI</scope></search><sort><creationdate>201910</creationdate><title>Validation of ice condenser model for CFD analysis of VVER-440 type containment</title><author>Rämä, T. ; Toppila, T. ; Visser, D.C. ; Siccama, N.B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-a7cb13bbae3318eb2701d152626c4c434e021b114a07cab1b8857b147e426a983</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Accidents</topic><topic>CFD</topic><topic>Computational fluid dynamics</topic><topic>Computer applications</topic><topic>Condensers</topic><topic>Condensers (liquefiers)</topic><topic>Containment</topic><topic>Containment thermal-hydraulics</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Helium</topic><topic>Hydraulics</topic><topic>Hydrodynamics</topic><topic>Ice</topic><topic>Ice condenser</topic><topic>Loss of coolant accidents</topic><topic>Mathematical models</topic><topic>Nuclear energy</topic><topic>Nuclear engineering</topic><topic>Nuclear power plants</topic><topic>Nuclear reactor containment</topic><topic>Nuclear safety</topic><topic>Pressure</topic><topic>Research projects</topic><topic>Scale models</topic><topic>Severe accident</topic><topic>Steam</topic><topic>Temperature</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rämä, T.</creatorcontrib><creatorcontrib>Toppila, T.</creatorcontrib><creatorcontrib>Visser, D.C.</creatorcontrib><creatorcontrib>Siccama, N.B.</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Environment Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Nuclear engineering and design</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rämä, T.</au><au>Toppila, T.</au><au>Visser, D.C.</au><au>Siccama, N.B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Validation of ice condenser model for CFD analysis of VVER-440 type containment</atitle><jtitle>Nuclear engineering and design</jtitle><date>2019-10</date><risdate>2019</risdate><volume>352</volume><spage>110163</spage><pages>110163-</pages><artnum>110163</artnum><issn>0029-5493</issn><eissn>1872-759X</eissn><abstract>•An ice condenser model is developed in the ANSYS Fluent CFD code.•The developed ice condenser model is validated against two integral tests.•The CFD model is able to predict the general pressure and temperature trends.•Discrepancies are related to the simplifications of the ice condenser model.
The Loviisa nuclear power plant is a unique combination of nuclear technologies, consisting of a VVER-440 reactor and an ice condenser containment. The Loviisa ice condenser is divided into two separate sections contrary to the original design applied in the USA and Japan where the ice condensers consist of a single section. The VICTORIA experimental facility is a 1/15th scale model of the Loviisa containment, which was constructed by Fortum to provide essential experimental information on the thermal-hydraulic behavior of the Loviisa ice condenser containment during small break loss-of-coolant accidents (SBLOCA) and severe accidents.
Computational fluid dynamics (CFD) analyses can give detailed information on the flow, temperature and pressure behavior in the ice condenser containment of Loviisa. NRG has validated CFD models for analyzing the thermal-hydraulics in containments of NPPs, making use of the CFD code ANSYS Fluent. In a joint research project, Fortum and NRG developed an ice condenser model that was integrated in the CFD containment model of NRG. This extended CFD containment model, including the ice condenser model, is validated against two experiments from the VICTORIA facility: experiment 27, in which the facility is pressurized and heated by injection of steam without ice in the ice condensers, and experiment 44, in which steam and helium is injected into the facility with 50% ice loading in the ice condensers.
It is shown that the evolution of pressure, temperature and helium concentrations in the VICTORIA facility can be predicted qualitatively well by the CFD model. Although this is a valuable first step, further development and validation is necessary before the CFD ice condenser model can be applied on real scale for safety analyses of the Loviisa NPP.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.nucengdes.2019.110163</doi></addata></record> |
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| subjects | Accidents CFD Computational fluid dynamics Computer applications Condensers Condensers (liquefiers) Containment Containment thermal-hydraulics Fluid dynamics Fluid flow Helium Hydraulics Hydrodynamics Ice Ice condenser Loss of coolant accidents Mathematical models Nuclear energy Nuclear engineering Nuclear power plants Nuclear reactor containment Nuclear safety Pressure Research projects Scale models Severe accident Steam Temperature |
| title | Validation of ice condenser model for CFD analysis of VVER-440 type containment |
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