Full-scale numerical study on the flow characteristics and mal-distribution phenomena in SG steam-water separation system of an advanced PWR
The steam-water separation system is of great importance to ensuring the steam quality in a PWR UTSG. In the present work, the full-scale three-dimensional CFD analysis is performed to study the mal-distribution steam flow in the system using ANSYS-FLUENT platform. A full-scale model of newly-design...
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| Veröffentlicht in: | Progress in Nuclear Energy 2020-01, Vol.118, p.103075, Article 103075 |
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| creator | Fang, Di Wang, Mingjun Duan, Yuangang Li, Jun Qiu, Suizheng Qiu, Guihui Tian, Wenxi Zuo, Chaoping Su, G.H |
| description | The steam-water separation system is of great importance to ensuring the steam quality in a PWR UTSG. In the present work, the full-scale three-dimensional CFD analysis is performed to study the mal-distribution steam flow in the system using ANSYS-FLUENT platform. A full-scale model of newly-designed PWR is established and all the sophisticated structures of 19 swirl-vane separators are modeled. Besides, the porous medium model is adopted to simplify the steam flow inside the dryers because of the complex structure of wave-type vanes. Employing CFD methodologies, detailed flow characteristics in the whole system are captured, especially the velocity fields of steam at inlets of 7 dryer units. The outcomes show that the maximum unit-area mass-flow rate appears at the entrance of #4 dryer which is in the central part of dryers. In addition, the maximum entry velocity is 2.136 m/s, while the velocity is decreased to 1.049 m/s, lower than the critical velocity, with the application of an orifice plate assembly with the perforation in different calibers on the plate. Also, the effect of the separator down-comer on the mal-distribution phenomenon is also analyzed. In general, the current work could be expected to be a basis for the future optimization on moisture separation components in the steam generator. |
| doi_str_mv | 10.1016/j.pnucene.2019.103075 |
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In the present work, the full-scale three-dimensional CFD analysis is performed to study the mal-distribution steam flow in the system using ANSYS-FLUENT platform. A full-scale model of newly-designed PWR is established and all the sophisticated structures of 19 swirl-vane separators are modeled. Besides, the porous medium model is adopted to simplify the steam flow inside the dryers because of the complex structure of wave-type vanes. Employing CFD methodologies, detailed flow characteristics in the whole system are captured, especially the velocity fields of steam at inlets of 7 dryer units. The outcomes show that the maximum unit-area mass-flow rate appears at the entrance of #4 dryer which is in the central part of dryers. In addition, the maximum entry velocity is 2.136 m/s, while the velocity is decreased to 1.049 m/s, lower than the critical velocity, with the application of an orifice plate assembly with the perforation in different calibers on the plate. Also, the effect of the separator down-comer on the mal-distribution phenomenon is also analyzed. In general, the current work could be expected to be a basis for the future optimization on moisture separation components in the steam generator.</description><identifier>ISSN: 0149-1970</identifier><identifier>EISSN: 1878-4224</identifier><identifier>DOI: 10.1016/j.pnucene.2019.103075</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Boilers ; CFD ; Computational fluid dynamics ; Critical velocity ; Driers ; Flow characteristics ; Fluid dynamics ; Full-scale analysis ; Inlets ; Mal-distribution flow ; Mass flow rate ; Mathematical models ; Optimization ; Orifice meters ; Orifices ; Perforation ; Plates (structural members) ; Porous media ; Pressurized water reactors ; Scale models ; Separation ; Separators ; Steam flow ; Steam power ; Steam-water separation system ; Three dimensional analysis ; Vanes ; Velocity ; Velocity distribution</subject><ispartof>Progress in Nuclear Energy, 2020-01, Vol.118, p.103075, Article 103075</ispartof><rights>Elsevier Ltd</rights><rights>Copyright Elsevier BV Jan 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-2fe9cee3e5eb2c0346cf7ffec6260d6ae3d3454de1228e4b366c7866713935773</citedby><cites>FETCH-LOGICAL-c337t-2fe9cee3e5eb2c0346cf7ffec6260d6ae3d3454de1228e4b366c7866713935773</cites><orcidid>0000-0003-0476-3294</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.pnucene.2019.103075$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Fang, Di</creatorcontrib><creatorcontrib>Wang, Mingjun</creatorcontrib><creatorcontrib>Duan, Yuangang</creatorcontrib><creatorcontrib>Li, Jun</creatorcontrib><creatorcontrib>Qiu, Suizheng</creatorcontrib><creatorcontrib>Qiu, Guihui</creatorcontrib><creatorcontrib>Tian, Wenxi</creatorcontrib><creatorcontrib>Zuo, Chaoping</creatorcontrib><creatorcontrib>Su, G.H</creatorcontrib><title>Full-scale numerical study on the flow characteristics and mal-distribution phenomena in SG steam-water separation system of an advanced PWR</title><title>Progress in Nuclear Energy</title><description>The steam-water separation system is of great importance to ensuring the steam quality in a PWR UTSG. In the present work, the full-scale three-dimensional CFD analysis is performed to study the mal-distribution steam flow in the system using ANSYS-FLUENT platform. A full-scale model of newly-designed PWR is established and all the sophisticated structures of 19 swirl-vane separators are modeled. Besides, the porous medium model is adopted to simplify the steam flow inside the dryers because of the complex structure of wave-type vanes. Employing CFD methodologies, detailed flow characteristics in the whole system are captured, especially the velocity fields of steam at inlets of 7 dryer units. The outcomes show that the maximum unit-area mass-flow rate appears at the entrance of #4 dryer which is in the central part of dryers. In addition, the maximum entry velocity is 2.136 m/s, while the velocity is decreased to 1.049 m/s, lower than the critical velocity, with the application of an orifice plate assembly with the perforation in different calibers on the plate. Also, the effect of the separator down-comer on the mal-distribution phenomenon is also analyzed. In general, the current work could be expected to be a basis for the future optimization on moisture separation components in the steam generator.</description><subject>Boilers</subject><subject>CFD</subject><subject>Computational fluid dynamics</subject><subject>Critical velocity</subject><subject>Driers</subject><subject>Flow characteristics</subject><subject>Fluid dynamics</subject><subject>Full-scale analysis</subject><subject>Inlets</subject><subject>Mal-distribution flow</subject><subject>Mass flow rate</subject><subject>Mathematical models</subject><subject>Optimization</subject><subject>Orifice meters</subject><subject>Orifices</subject><subject>Perforation</subject><subject>Plates (structural members)</subject><subject>Porous media</subject><subject>Pressurized water reactors</subject><subject>Scale models</subject><subject>Separation</subject><subject>Separators</subject><subject>Steam flow</subject><subject>Steam power</subject><subject>Steam-water separation system</subject><subject>Three dimensional analysis</subject><subject>Vanes</subject><subject>Velocity</subject><subject>Velocity distribution</subject><issn>0149-1970</issn><issn>1878-4224</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkNtKAzEQhoMoWA-PIAS83prTJt0rkaJVEBQPeBnSZJam7GbXZNfSd_ChTa33Xk0m8__fMD9CF5RMKaHyaj3tw2ghwJQRWuU_TlR5gCZ0pmaFYEwcogmhoipopcgxOklpTQhVtCwn6PtubJoiWdMADmML0ecnTsPotrgLeFgBrptug-3KRGOHPE-Dtwmb4HBrmsLlPvrlOPis7lcQuhaCwT7g10XGgGmLjck2nKDPhF9Z2uZBi7s6U7BxXyZYcPj54-UMHdWmSXD-V0_R-93t2_y-eHxaPMxvHgvLuRoKVkNlATiUsGSWcCFtreoarGSSOGmAOy5K4YAyNgOx5FJaNZNSUV7xUil-ii733D52nyOkQa-7MYa8UjPOBSNKqCqryr3Kxi6lCLXuo29N3GpK9C54vdZ_wetd8HoffPZd732QT_jyEHWyHnY3-gh20K7z_xB-AEvekRw</recordid><startdate>202001</startdate><enddate>202001</enddate><creator>Fang, Di</creator><creator>Wang, Mingjun</creator><creator>Duan, Yuangang</creator><creator>Li, Jun</creator><creator>Qiu, Suizheng</creator><creator>Qiu, Guihui</creator><creator>Tian, Wenxi</creator><creator>Zuo, Chaoping</creator><creator>Su, G.H</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><orcidid>https://orcid.org/0000-0003-0476-3294</orcidid></search><sort><creationdate>202001</creationdate><title>Full-scale numerical study on the flow characteristics and mal-distribution phenomena in SG steam-water separation system of an advanced PWR</title><author>Fang, Di ; Wang, Mingjun ; Duan, Yuangang ; Li, Jun ; Qiu, Suizheng ; Qiu, Guihui ; Tian, Wenxi ; Zuo, Chaoping ; Su, G.H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-2fe9cee3e5eb2c0346cf7ffec6260d6ae3d3454de1228e4b366c7866713935773</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Boilers</topic><topic>CFD</topic><topic>Computational fluid dynamics</topic><topic>Critical velocity</topic><topic>Driers</topic><topic>Flow characteristics</topic><topic>Fluid dynamics</topic><topic>Full-scale analysis</topic><topic>Inlets</topic><topic>Mal-distribution flow</topic><topic>Mass flow rate</topic><topic>Mathematical models</topic><topic>Optimization</topic><topic>Orifice meters</topic><topic>Orifices</topic><topic>Perforation</topic><topic>Plates (structural members)</topic><topic>Porous media</topic><topic>Pressurized water reactors</topic><topic>Scale models</topic><topic>Separation</topic><topic>Separators</topic><topic>Steam flow</topic><topic>Steam power</topic><topic>Steam-water separation system</topic><topic>Three dimensional analysis</topic><topic>Vanes</topic><topic>Velocity</topic><topic>Velocity distribution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fang, Di</creatorcontrib><creatorcontrib>Wang, Mingjun</creatorcontrib><creatorcontrib>Duan, Yuangang</creatorcontrib><creatorcontrib>Li, Jun</creatorcontrib><creatorcontrib>Qiu, Suizheng</creatorcontrib><creatorcontrib>Qiu, Guihui</creatorcontrib><creatorcontrib>Tian, Wenxi</creatorcontrib><creatorcontrib>Zuo, Chaoping</creatorcontrib><creatorcontrib>Su, G.H</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Progress in Nuclear Energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fang, Di</au><au>Wang, Mingjun</au><au>Duan, Yuangang</au><au>Li, Jun</au><au>Qiu, Suizheng</au><au>Qiu, Guihui</au><au>Tian, Wenxi</au><au>Zuo, Chaoping</au><au>Su, G.H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Full-scale numerical study on the flow characteristics and mal-distribution phenomena in SG steam-water separation system of an advanced PWR</atitle><jtitle>Progress in Nuclear Energy</jtitle><date>2020-01</date><risdate>2020</risdate><volume>118</volume><spage>103075</spage><pages>103075-</pages><artnum>103075</artnum><issn>0149-1970</issn><eissn>1878-4224</eissn><abstract>The steam-water separation system is of great importance to ensuring the steam quality in a PWR UTSG. In the present work, the full-scale three-dimensional CFD analysis is performed to study the mal-distribution steam flow in the system using ANSYS-FLUENT platform. A full-scale model of newly-designed PWR is established and all the sophisticated structures of 19 swirl-vane separators are modeled. Besides, the porous medium model is adopted to simplify the steam flow inside the dryers because of the complex structure of wave-type vanes. Employing CFD methodologies, detailed flow characteristics in the whole system are captured, especially the velocity fields of steam at inlets of 7 dryer units. The outcomes show that the maximum unit-area mass-flow rate appears at the entrance of #4 dryer which is in the central part of dryers. In addition, the maximum entry velocity is 2.136 m/s, while the velocity is decreased to 1.049 m/s, lower than the critical velocity, with the application of an orifice plate assembly with the perforation in different calibers on the plate. Also, the effect of the separator down-comer on the mal-distribution phenomenon is also analyzed. In general, the current work could be expected to be a basis for the future optimization on moisture separation components in the steam generator.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.pnucene.2019.103075</doi><orcidid>https://orcid.org/0000-0003-0476-3294</orcidid></addata></record> |
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| subjects | Boilers CFD Computational fluid dynamics Critical velocity Driers Flow characteristics Fluid dynamics Full-scale analysis Inlets Mal-distribution flow Mass flow rate Mathematical models Optimization Orifice meters Orifices Perforation Plates (structural members) Porous media Pressurized water reactors Scale models Separation Separators Steam flow Steam power Steam-water separation system Three dimensional analysis Vanes Velocity Velocity distribution |
| title | Full-scale numerical study on the flow characteristics and mal-distribution phenomena in SG steam-water separation system of an advanced PWR |
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