Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film

In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. Many models ar...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Okawa, Tomio [verfasserIn] Yamagata, Keisuke [verfasserIn] Umehara, Yutaro [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	Rewet Falling liquid film Heat transfer coefficient profile Wetting temperature Wetting velocity

Übergeordnetes Werk:	Enthalten in: Nuclear engineering and design - Amsterdam [u.a.] : Elsevier Science, 1966, 363
Übergeordnetes Werk:	volume:363

DOI / URN:	10.1016/j.nucengdes.2020.110629

Katalog-ID:	ELV004082788

Internformat


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520			\|a In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. Many models are available for the HTC profile in literature, but they have not been validated sufficiently mainly due to the lack of experimental data. In the present study, transient of the wall temperature distribution during the wetting process of a high-temperature vertical plate with a falling liquid film was measured using a high-speed infra-red camera. The measured temperature data were substituted to the heat conduction equation to derive the HTC profile. It was confirmed that the wetting velocity measured in this work can be reproduced within the error of 10% if the calculated HTC profile is used. This indicates that the experimental data obtained in this work can be used as the base to develop a high-performance correlation for the HTC profile near the wetting front.
650		4	\|a Rewet
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author_variant	t o to k y ky y u yu
matchkey_str	article:00295493:2020----::esrmnohatasecefcetrfldrnqecigfvriaht
hierarchy_sort_str	2020
bklnumber	52.55
publishDate	2020
allfields	10.1016/j.nucengdes.2020.110629 doi (DE-627)ELV004082788 (ELSEVIER)S0029-5493(20)30123-0 DE-627 ger DE-627 rda eng 620 DE-600 52.55 bkl Okawa, Tomio verfasserin (orcid)0000-0003-4724-9228 aut Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. Many models are available for the HTC profile in literature, but they have not been validated sufficiently mainly due to the lack of experimental data. In the present study, transient of the wall temperature distribution during the wetting process of a high-temperature vertical plate with a falling liquid film was measured using a high-speed infra-red camera. The measured temperature data were substituted to the heat conduction equation to derive the HTC profile. It was confirmed that the wetting velocity measured in this work can be reproduced within the error of 10% if the calculated HTC profile is used. This indicates that the experimental data obtained in this work can be used as the base to develop a high-performance correlation for the HTC profile near the wetting front. Rewet Falling liquid film Heat transfer coefficient profile Wetting temperature Wetting velocity Yamagata, Keisuke verfasserin aut Umehara, Yutaro verfasserin aut Enthalten in Nuclear engineering and design Amsterdam [u.a.] : Elsevier Science, 1966 363 Online-Ressource (DE-627)320411087 (DE-600)2001319-X (DE-576)251938182 0029-5493 nnns volume:363 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.55 Kerntechnik Reaktortechnik AR 363
spelling	10.1016/j.nucengdes.2020.110629 doi (DE-627)ELV004082788 (ELSEVIER)S0029-5493(20)30123-0 DE-627 ger DE-627 rda eng 620 DE-600 52.55 bkl Okawa, Tomio verfasserin (orcid)0000-0003-4724-9228 aut Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. Many models are available for the HTC profile in literature, but they have not been validated sufficiently mainly due to the lack of experimental data. In the present study, transient of the wall temperature distribution during the wetting process of a high-temperature vertical plate with a falling liquid film was measured using a high-speed infra-red camera. The measured temperature data were substituted to the heat conduction equation to derive the HTC profile. It was confirmed that the wetting velocity measured in this work can be reproduced within the error of 10% if the calculated HTC profile is used. This indicates that the experimental data obtained in this work can be used as the base to develop a high-performance correlation for the HTC profile near the wetting front. Rewet Falling liquid film Heat transfer coefficient profile Wetting temperature Wetting velocity Yamagata, Keisuke verfasserin aut Umehara, Yutaro verfasserin aut Enthalten in Nuclear engineering and design Amsterdam [u.a.] : Elsevier Science, 1966 363 Online-Ressource (DE-627)320411087 (DE-600)2001319-X (DE-576)251938182 0029-5493 nnns volume:363 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.55 Kerntechnik Reaktortechnik AR 363
allfields_unstemmed	10.1016/j.nucengdes.2020.110629 doi (DE-627)ELV004082788 (ELSEVIER)S0029-5493(20)30123-0 DE-627 ger DE-627 rda eng 620 DE-600 52.55 bkl Okawa, Tomio verfasserin (orcid)0000-0003-4724-9228 aut Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. Many models are available for the HTC profile in literature, but they have not been validated sufficiently mainly due to the lack of experimental data. In the present study, transient of the wall temperature distribution during the wetting process of a high-temperature vertical plate with a falling liquid film was measured using a high-speed infra-red camera. The measured temperature data were substituted to the heat conduction equation to derive the HTC profile. It was confirmed that the wetting velocity measured in this work can be reproduced within the error of 10% if the calculated HTC profile is used. This indicates that the experimental data obtained in this work can be used as the base to develop a high-performance correlation for the HTC profile near the wetting front. Rewet Falling liquid film Heat transfer coefficient profile Wetting temperature Wetting velocity Yamagata, Keisuke verfasserin aut Umehara, Yutaro verfasserin aut Enthalten in Nuclear engineering and design Amsterdam [u.a.] : Elsevier Science, 1966 363 Online-Ressource (DE-627)320411087 (DE-600)2001319-X (DE-576)251938182 0029-5493 nnns volume:363 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.55 Kerntechnik Reaktortechnik AR 363
allfieldsGer	10.1016/j.nucengdes.2020.110629 doi (DE-627)ELV004082788 (ELSEVIER)S0029-5493(20)30123-0 DE-627 ger DE-627 rda eng 620 DE-600 52.55 bkl Okawa, Tomio verfasserin (orcid)0000-0003-4724-9228 aut Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. Many models are available for the HTC profile in literature, but they have not been validated sufficiently mainly due to the lack of experimental data. In the present study, transient of the wall temperature distribution during the wetting process of a high-temperature vertical plate with a falling liquid film was measured using a high-speed infra-red camera. The measured temperature data were substituted to the heat conduction equation to derive the HTC profile. It was confirmed that the wetting velocity measured in this work can be reproduced within the error of 10% if the calculated HTC profile is used. This indicates that the experimental data obtained in this work can be used as the base to develop a high-performance correlation for the HTC profile near the wetting front. Rewet Falling liquid film Heat transfer coefficient profile Wetting temperature Wetting velocity Yamagata, Keisuke verfasserin aut Umehara, Yutaro verfasserin aut Enthalten in Nuclear engineering and design Amsterdam [u.a.] : Elsevier Science, 1966 363 Online-Ressource (DE-627)320411087 (DE-600)2001319-X (DE-576)251938182 0029-5493 nnns volume:363 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.55 Kerntechnik Reaktortechnik AR 363
allfieldsSound	10.1016/j.nucengdes.2020.110629 doi (DE-627)ELV004082788 (ELSEVIER)S0029-5493(20)30123-0 DE-627 ger DE-627 rda eng 620 DE-600 52.55 bkl Okawa, Tomio verfasserin (orcid)0000-0003-4724-9228 aut Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. Many models are available for the HTC profile in literature, but they have not been validated sufficiently mainly due to the lack of experimental data. In the present study, transient of the wall temperature distribution during the wetting process of a high-temperature vertical plate with a falling liquid film was measured using a high-speed infra-red camera. The measured temperature data were substituted to the heat conduction equation to derive the HTC profile. It was confirmed that the wetting velocity measured in this work can be reproduced within the error of 10% if the calculated HTC profile is used. This indicates that the experimental data obtained in this work can be used as the base to develop a high-performance correlation for the HTC profile near the wetting front. Rewet Falling liquid film Heat transfer coefficient profile Wetting temperature Wetting velocity Yamagata, Keisuke verfasserin aut Umehara, Yutaro verfasserin aut Enthalten in Nuclear engineering and design Amsterdam [u.a.] : Elsevier Science, 1966 363 Online-Ressource (DE-627)320411087 (DE-600)2001319-X (DE-576)251938182 0029-5493 nnns volume:363 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.55 Kerntechnik Reaktortechnik AR 363
language	English
source	Enthalten in Nuclear engineering and design 363 volume:363
sourceStr	Enthalten in Nuclear engineering and design 363 volume:363
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topic_facet	Rewet Falling liquid film Heat transfer coefficient profile Wetting temperature Wetting velocity
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container_title	Nuclear engineering and design
authorswithroles_txt_mv	Okawa, Tomio @@aut@@ Yamagata, Keisuke @@aut@@ Umehara, Yutaro @@aut@@
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author	Okawa, Tomio
spellingShingle	Okawa, Tomio ddc 620 bkl 52.55 misc Rewet misc Falling liquid film misc Heat transfer coefficient profile misc Wetting temperature misc Wetting velocity Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film
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topic_title	620 DE-600 52.55 bkl Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film Rewet Falling liquid film Heat transfer coefficient profile Wetting temperature Wetting velocity
topic	ddc 620 bkl 52.55 misc Rewet misc Falling liquid film misc Heat transfer coefficient profile misc Wetting temperature misc Wetting velocity
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title	Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film
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title_full	Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film
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title_sort	measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film
title_auth	Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film
abstract	In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. Many models are available for the HTC profile in literature, but they have not been validated sufficiently mainly due to the lack of experimental data. In the present study, transient of the wall temperature distribution during the wetting process of a high-temperature vertical plate with a falling liquid film was measured using a high-speed infra-red camera. The measured temperature data were substituted to the heat conduction equation to derive the HTC profile. It was confirmed that the wetting velocity measured in this work can be reproduced within the error of 10% if the calculated HTC profile is used. This indicates that the experimental data obtained in this work can be used as the base to develop a high-performance correlation for the HTC profile near the wetting front.
abstractGer	In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. Many models are available for the HTC profile in literature, but they have not been validated sufficiently mainly due to the lack of experimental data. In the present study, transient of the wall temperature distribution during the wetting process of a high-temperature vertical plate with a falling liquid film was measured using a high-speed infra-red camera. The measured temperature data were substituted to the heat conduction equation to derive the HTC profile. It was confirmed that the wetting velocity measured in this work can be reproduced within the error of 10% if the calculated HTC profile is used. This indicates that the experimental data obtained in this work can be used as the base to develop a high-performance correlation for the HTC profile near the wetting front.
abstract_unstemmed	In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. Many models are available for the HTC profile in literature, but they have not been validated sufficiently mainly due to the lack of experimental data. In the present study, transient of the wall temperature distribution during the wetting process of a high-temperature vertical plate with a falling liquid film was measured using a high-speed infra-red camera. The measured temperature data were substituted to the heat conduction equation to derive the HTC profile. It was confirmed that the wetting velocity measured in this work can be reproduced within the error of 10% if the calculated HTC profile is used. This indicates that the experimental data obtained in this work can be used as the base to develop a high-performance correlation for the HTC profile near the wetting front.
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title_short	Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film
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author2	Yamagata, Keisuke Umehara, Yutaro
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up_date	2024-07-06T21:47:21.398Z
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fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV004082788</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230524162420.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230502s2020 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.nucengdes.2020.110629</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV004082788</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0029-5493(20)30123-0</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">620</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">52.55</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Okawa, Tomio</subfield><subfield code="e">verfasserin</subfield><subfield code="0">(orcid)0000-0003-4724-9228</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">In the safety analysis of LWRs, spatial distribution of the heat transfer coefficient (HTC) in the vicinity of the rewetting front is of importance in order to predict the rewetting velocity of high-temperature fuel rods after the onset of reflooding during a loss-of-coolant accident. 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Measurement of heat transfer coefficient profile during quenching of a vertical hot wall with a falling liquid film

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