Development of fission product chemistry database ECUME for the LWR severe accident

We extended the first version of fission product (FP) chemistry database named ECUME (Effective Chemistry database of fission products Under Multiphase rEaction). The extended ECUME consists of three kinds of datasets: CRK (dataset for Chemical Reaction Kinetics), EM (Elemental Model set) and TD (Th...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Shuhei MIWA, Kunihisa NAKAJIMA, Naoya MIYAHARA, Shunichiro NISHIOKA, Eriko SUZUKI, Naoki HORIGUCHI, Jiazhan LIU, Faoulat MIRADJI, Junpei IMOTO, Afiqa MOHAMAD, Gaku TAKASE, Hidetoshi KARASAWA, Masahiko OSAKA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	fission product chemistry database cesium chemisorption thermodynamic Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/fa28db45aa9e42df9d56d109b3f7c170
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:fa28db45aa9e42df9d56d109b3f7c170
record_format	dspace
spelling	oai:doaj.org-article:fa28db45aa9e42df9d56d109b3f7c1702021-11-29T05:56:30ZDevelopment of fission product chemistry database ECUME for the LWR severe accident2187-974510.1299/mej.19-00537https://doaj.org/article/fa28db45aa9e42df9d56d109b3f7c1702020-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/3/7_19-00537/_pdf/-char/enhttps://doaj.org/toc/2187-9745We extended the first version of fission product (FP) chemistry database named ECUME (Effective Chemistry database of fission products Under Multiphase rEaction). The extended ECUME consists of three kinds of datasets: CRK (dataset for Chemical Reaction Kinetics), EM (Elemental Model set) and TD (ThermoDynamic dataset). The present ECUME is equipped with the CRK for the reaction of Cs-I-B-Mo-O-H system and Ru-N-O-H system in gas phase, the EM for the Cs chemical reaction with stainless steel (SS) (Cs chemisorption onto SS) and the TD for CsBO2 vapor species and solid Cs2Si4O9 and CsFeSiO4. A FP chemical reaction calculation in gas phase with the CRK of Cs-I-B-Mo-O-H system has shown the necessity of consideration of chemical reaction kinetics for more accurate estimation of Cs and I release amount into environment. The EM for Cs chemisorption has successfully achieved more accurate estimation of Cs distribution in a reactor by reproducing the effects of CsOH vapor concentration in gas phase and Si content in SS which were not considered by the existing model. The high quality vapor pressure data for CsBO2 vapor were evaluated based on the result of a high temperature mass spectrometry. Cesium species at high temperature can be estimated by the thermodynamic data with high reliability. Thermodynamic data for solid Cs2Si4O9 and CsFeSiO4 were successfully evaluated by the experiment and ab-initio based methodology, respectively. These results have shown the validity and importance of the ECUME application for the more accurate evaluation of FP chemistry during transportation in a reactor under a LWR severe accident.Shuhei MIWAKunihisa NAKAJIMANaoya MIYAHARAShunichiro NISHIOKAEriko SUZUKINaoki HORIGUCHIJiazhan LIUFaoulat MIRADJIJunpei IMOTOAfiqa MOHAMADGaku TAKASEHidetoshi KARASAWAMasahiko OSAKAThe Japan Society of Mechanical Engineersarticlefission productchemistrydatabasecesiumchemisorptionthermodynamicMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 3, Pp 19-00537-19-00537 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	fission product chemistry database cesium chemisorption thermodynamic Mechanical engineering and machinery TJ1-1570
spellingShingle	fission product chemistry database cesium chemisorption thermodynamic Mechanical engineering and machinery TJ1-1570 Shuhei MIWA Kunihisa NAKAJIMA Naoya MIYAHARA Shunichiro NISHIOKA Eriko SUZUKI Naoki HORIGUCHI Jiazhan LIU Faoulat MIRADJI Junpei IMOTO Afiqa MOHAMAD Gaku TAKASE Hidetoshi KARASAWA Masahiko OSAKA Development of fission product chemistry database ECUME for the LWR severe accident
description	We extended the first version of fission product (FP) chemistry database named ECUME (Effective Chemistry database of fission products Under Multiphase rEaction). The extended ECUME consists of three kinds of datasets: CRK (dataset for Chemical Reaction Kinetics), EM (Elemental Model set) and TD (ThermoDynamic dataset). The present ECUME is equipped with the CRK for the reaction of Cs-I-B-Mo-O-H system and Ru-N-O-H system in gas phase, the EM for the Cs chemical reaction with stainless steel (SS) (Cs chemisorption onto SS) and the TD for CsBO2 vapor species and solid Cs2Si4O9 and CsFeSiO4. A FP chemical reaction calculation in gas phase with the CRK of Cs-I-B-Mo-O-H system has shown the necessity of consideration of chemical reaction kinetics for more accurate estimation of Cs and I release amount into environment. The EM for Cs chemisorption has successfully achieved more accurate estimation of Cs distribution in a reactor by reproducing the effects of CsOH vapor concentration in gas phase and Si content in SS which were not considered by the existing model. The high quality vapor pressure data for CsBO2 vapor were evaluated based on the result of a high temperature mass spectrometry. Cesium species at high temperature can be estimated by the thermodynamic data with high reliability. Thermodynamic data for solid Cs2Si4O9 and CsFeSiO4 were successfully evaluated by the experiment and ab-initio based methodology, respectively. These results have shown the validity and importance of the ECUME application for the more accurate evaluation of FP chemistry during transportation in a reactor under a LWR severe accident.
format	article
author	Shuhei MIWA Kunihisa NAKAJIMA Naoya MIYAHARA Shunichiro NISHIOKA Eriko SUZUKI Naoki HORIGUCHI Jiazhan LIU Faoulat MIRADJI Junpei IMOTO Afiqa MOHAMAD Gaku TAKASE Hidetoshi KARASAWA Masahiko OSAKA
author_facet	Shuhei MIWA Kunihisa NAKAJIMA Naoya MIYAHARA Shunichiro NISHIOKA Eriko SUZUKI Naoki HORIGUCHI Jiazhan LIU Faoulat MIRADJI Junpei IMOTO Afiqa MOHAMAD Gaku TAKASE Hidetoshi KARASAWA Masahiko OSAKA
author_sort	Shuhei MIWA
title	Development of fission product chemistry database ECUME for the LWR severe accident
title_short	Development of fission product chemistry database ECUME for the LWR severe accident
title_full	Development of fission product chemistry database ECUME for the LWR severe accident
title_fullStr	Development of fission product chemistry database ECUME for the LWR severe accident
title_full_unstemmed	Development of fission product chemistry database ECUME for the LWR severe accident
title_sort	development of fission product chemistry database ecume for the lwr severe accident
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/fa28db45aa9e42df9d56d109b3f7c170
work_keys_str_mv	AT shuheimiwa developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT kunihisanakajima developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT naoyamiyahara developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT shunichironishioka developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT erikosuzuki developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT naokihoriguchi developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT jiazhanliu developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT faoulatmiradji developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT junpeiimoto developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT afiqamohamad developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT gakutakase developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT hidetoshikarasawa developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident AT masahikoosaka developmentoffissionproductchemistrydatabaseecumeforthelwrsevereaccident
_version_	1718407624601370624

Development of fission product chemistry database ECUME for the LWR severe accident

Ejemplares similares