Experimental investigation of upper plenum entrainment in AP1000
Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst L...
Ausführliche Beschreibung
Autor*in: |
Sun, D.C. [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
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2015transfer abstract |
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6 |
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Übergeordnetes Werk: |
Enthalten in: Histone deacetylase 5 is a phosphorylation substrate of protein kinase D in osteoclasts - Meyers, Carina Mello Guimaraes ELSEVIER, 2022, the international review journal covering all aspects of nuclear energy, Amsterdam [u.a.] |
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Übergeordnetes Werk: |
volume:80 ; year:2015 ; pages:80-85 ; extent:6 |
Links: |
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DOI / URN: |
10.1016/j.pnucene.2014.12.003 |
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ELV018247733 |
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520 | |a Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. | ||
520 | |a Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. | ||
650 | 7 | |a ADETEL |2 Elsevier | |
650 | 7 | |a Upper plenum |2 Elsevier | |
650 | 7 | |a Liquid entrainment |2 Elsevier | |
650 | 7 | |a AP1000 |2 Elsevier | |
700 | 1 | |a Xiang, Y. |4 oth | |
700 | 1 | |a Tian, W.X. |4 oth | |
700 | 1 | |a Liu, J.C. |4 oth | |
700 | 1 | |a Zhang, P. |4 oth | |
700 | 1 | |a Qiu, S.Z. |4 oth | |
700 | 1 | |a Su, G.H. |4 oth | |
773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Meyers, Carina Mello Guimaraes ELSEVIER |t Histone deacetylase 5 is a phosphorylation substrate of protein kinase D in osteoclasts |d 2022 |d the international review journal covering all aspects of nuclear energy |g Amsterdam [u.a.] |w (DE-627)ELV007755775 |
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10.1016/j.pnucene.2014.12.003 doi GBVA2015004000017.pica (DE-627)ELV018247733 (ELSEVIER)S0149-1970(14)00335-7 DE-627 ger DE-627 rakwb eng 620 620 DE-600 610 VZ 44.83 bkl Sun, D.C. verfasserin aut Experimental investigation of upper plenum entrainment in AP1000 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. ADETEL Elsevier Upper plenum Elsevier Liquid entrainment Elsevier AP1000 Elsevier Xiang, Y. oth Tian, W.X. oth Liu, J.C. oth Zhang, P. oth Qiu, S.Z. oth Su, G.H. oth Enthalten in Elsevier Science Meyers, Carina Mello Guimaraes ELSEVIER Histone deacetylase 5 is a phosphorylation substrate of protein kinase D in osteoclasts 2022 the international review journal covering all aspects of nuclear energy Amsterdam [u.a.] (DE-627)ELV007755775 volume:80 year:2015 pages:80-85 extent:6 https://doi.org/10.1016/j.pnucene.2014.12.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.83 Rheumatologie Orthopädie VZ AR 80 2015 80-85 6 045F 620 |
spelling |
10.1016/j.pnucene.2014.12.003 doi GBVA2015004000017.pica (DE-627)ELV018247733 (ELSEVIER)S0149-1970(14)00335-7 DE-627 ger DE-627 rakwb eng 620 620 DE-600 610 VZ 44.83 bkl Sun, D.C. verfasserin aut Experimental investigation of upper plenum entrainment in AP1000 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. ADETEL Elsevier Upper plenum Elsevier Liquid entrainment Elsevier AP1000 Elsevier Xiang, Y. oth Tian, W.X. oth Liu, J.C. oth Zhang, P. oth Qiu, S.Z. oth Su, G.H. oth Enthalten in Elsevier Science Meyers, Carina Mello Guimaraes ELSEVIER Histone deacetylase 5 is a phosphorylation substrate of protein kinase D in osteoclasts 2022 the international review journal covering all aspects of nuclear energy Amsterdam [u.a.] (DE-627)ELV007755775 volume:80 year:2015 pages:80-85 extent:6 https://doi.org/10.1016/j.pnucene.2014.12.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.83 Rheumatologie Orthopädie VZ AR 80 2015 80-85 6 045F 620 |
allfields_unstemmed |
10.1016/j.pnucene.2014.12.003 doi GBVA2015004000017.pica (DE-627)ELV018247733 (ELSEVIER)S0149-1970(14)00335-7 DE-627 ger DE-627 rakwb eng 620 620 DE-600 610 VZ 44.83 bkl Sun, D.C. verfasserin aut Experimental investigation of upper plenum entrainment in AP1000 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. ADETEL Elsevier Upper plenum Elsevier Liquid entrainment Elsevier AP1000 Elsevier Xiang, Y. oth Tian, W.X. oth Liu, J.C. oth Zhang, P. oth Qiu, S.Z. oth Su, G.H. oth Enthalten in Elsevier Science Meyers, Carina Mello Guimaraes ELSEVIER Histone deacetylase 5 is a phosphorylation substrate of protein kinase D in osteoclasts 2022 the international review journal covering all aspects of nuclear energy Amsterdam [u.a.] (DE-627)ELV007755775 volume:80 year:2015 pages:80-85 extent:6 https://doi.org/10.1016/j.pnucene.2014.12.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.83 Rheumatologie Orthopädie VZ AR 80 2015 80-85 6 045F 620 |
allfieldsGer |
10.1016/j.pnucene.2014.12.003 doi GBVA2015004000017.pica (DE-627)ELV018247733 (ELSEVIER)S0149-1970(14)00335-7 DE-627 ger DE-627 rakwb eng 620 620 DE-600 610 VZ 44.83 bkl Sun, D.C. verfasserin aut Experimental investigation of upper plenum entrainment in AP1000 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. ADETEL Elsevier Upper plenum Elsevier Liquid entrainment Elsevier AP1000 Elsevier Xiang, Y. oth Tian, W.X. oth Liu, J.C. oth Zhang, P. oth Qiu, S.Z. oth Su, G.H. oth Enthalten in Elsevier Science Meyers, Carina Mello Guimaraes ELSEVIER Histone deacetylase 5 is a phosphorylation substrate of protein kinase D in osteoclasts 2022 the international review journal covering all aspects of nuclear energy Amsterdam [u.a.] (DE-627)ELV007755775 volume:80 year:2015 pages:80-85 extent:6 https://doi.org/10.1016/j.pnucene.2014.12.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.83 Rheumatologie Orthopädie VZ AR 80 2015 80-85 6 045F 620 |
allfieldsSound |
10.1016/j.pnucene.2014.12.003 doi GBVA2015004000017.pica (DE-627)ELV018247733 (ELSEVIER)S0149-1970(14)00335-7 DE-627 ger DE-627 rakwb eng 620 620 DE-600 610 VZ 44.83 bkl Sun, D.C. verfasserin aut Experimental investigation of upper plenum entrainment in AP1000 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. ADETEL Elsevier Upper plenum Elsevier Liquid entrainment Elsevier AP1000 Elsevier Xiang, Y. oth Tian, W.X. oth Liu, J.C. oth Zhang, P. oth Qiu, S.Z. oth Su, G.H. oth Enthalten in Elsevier Science Meyers, Carina Mello Guimaraes ELSEVIER Histone deacetylase 5 is a phosphorylation substrate of protein kinase D in osteoclasts 2022 the international review journal covering all aspects of nuclear energy Amsterdam [u.a.] (DE-627)ELV007755775 volume:80 year:2015 pages:80-85 extent:6 https://doi.org/10.1016/j.pnucene.2014.12.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.83 Rheumatologie Orthopädie VZ AR 80 2015 80-85 6 045F 620 |
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Enthalten in Histone deacetylase 5 is a phosphorylation substrate of protein kinase D in osteoclasts Amsterdam [u.a.] volume:80 year:2015 pages:80-85 extent:6 |
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Enthalten in Histone deacetylase 5 is a phosphorylation substrate of protein kinase D in osteoclasts Amsterdam [u.a.] volume:80 year:2015 pages:80-85 extent:6 |
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Histone deacetylase 5 is a phosphorylation substrate of protein kinase D in osteoclasts |
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To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. 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Experimental investigation of upper plenum entrainment in AP1000 |
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Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. |
abstractGer |
Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. |
abstract_unstemmed |
Upper plenum liquid entrainment can reduce the coolant inventory in the reactor pressure vessel and poses great threats to core uncovering and melting in the accident conditions. To make up for the deficiency of upper plenum entrainment database, the Automatic Depressurization and Entrainment TEst Loop (ADETEL) was constructed and upper plenum entrainment experiments were conducted. The test matrix was designed with various variables to investigate the upper plenum entrainment comprehensively. Entrainment phenomena and test data were obtained and analyzed. The entrainment deposition effect of reactor internals was also investigated. The test results indicate that the steam flow rate has little on the entrainment rate under stable experimental conditions. The entrainment rate decreases dramatically with the mixture liquid level in the pressure vessel when the liquid level drops below the hot leg elevation. The entrainment rate is promoted after the installation of reactor internals due to the increase of steam velocity in the upper plenum. Huge discrepancy exists between the test data and Kataoka and Ishii's (1984) pool entrainment model in the near surface region suggesting that the upper plenum entrainment is mainly dominated by side branch entrainment mechanism which is different from the pool entrainment mechanism. |
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Experimental investigation of upper plenum entrainment in AP1000 |
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Xiang, Y. Tian, W.X. Liu, J.C. Zhang, P. Qiu, S.Z. Su, G.H. |
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