Numerical Investigation of the Transient Behavior of a Hot Gas Duct under Rapid Depressurization
A hot gas duct is an indispensable component for the nuclear-process heat applications of the Very-High-Temperature Reactor (VHTR), which has to fulfill three requirements: to withstand high temperature, high pressure, and large pressure transient. In this paper, numerical investigation of pressure...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2016/6858425 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850157571325820928 |
|---|---|
| author | JingBao Liu ShengYao Jiang Tao Ma RiQiang Duan |
| author_facet | JingBao Liu ShengYao Jiang Tao Ma RiQiang Duan |
| author_sort | JingBao Liu |
| collection | DOAJ |
| description | A hot gas duct is an indispensable component for the nuclear-process heat applications of the Very-High-Temperature Reactor (VHTR), which has to fulfill three requirements: to withstand high temperature, high pressure, and large pressure transient. In this paper, numerical investigation of pressure transient is performed for a hot gas duct under rapid depressurization. System depressurization imposes an imploding pressure differential on the internal structural elements of a hot gas duct, the structural integrity of which is susceptible to being damaged. Pressure differential and its imposed duration, which are two key factors to evaluate the damage severity of a hot gas duct under depressurization, are examined in regard to depressurization rate and insulation packing tightness. It is revealed that depressurization rate is a decisive parameter for controlling the pressure differential and its duration, whereas insulating-packing tightness has little effect on them. |
| format | Article |
| id | doaj-art-2dc2ce9074fd48408ee762eeb11afa15 |
| institution | OA Journals |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-2dc2ce9074fd48408ee762eeb11afa152025-08-20T02:24:07ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832016-01-01201610.1155/2016/68584256858425Numerical Investigation of the Transient Behavior of a Hot Gas Duct under Rapid DepressurizationJingBao Liu0ShengYao Jiang1Tao Ma2RiQiang Duan3Institute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, ChinaInstitute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, ChinaInstitute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, ChinaInstitute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, ChinaA hot gas duct is an indispensable component for the nuclear-process heat applications of the Very-High-Temperature Reactor (VHTR), which has to fulfill three requirements: to withstand high temperature, high pressure, and large pressure transient. In this paper, numerical investigation of pressure transient is performed for a hot gas duct under rapid depressurization. System depressurization imposes an imploding pressure differential on the internal structural elements of a hot gas duct, the structural integrity of which is susceptible to being damaged. Pressure differential and its imposed duration, which are two key factors to evaluate the damage severity of a hot gas duct under depressurization, are examined in regard to depressurization rate and insulation packing tightness. It is revealed that depressurization rate is a decisive parameter for controlling the pressure differential and its duration, whereas insulating-packing tightness has little effect on them.http://dx.doi.org/10.1155/2016/6858425 |
| spellingShingle | JingBao Liu ShengYao Jiang Tao Ma RiQiang Duan Numerical Investigation of the Transient Behavior of a Hot Gas Duct under Rapid Depressurization Science and Technology of Nuclear Installations |
| title | Numerical Investigation of the Transient Behavior of a Hot Gas Duct under Rapid Depressurization |
| title_full | Numerical Investigation of the Transient Behavior of a Hot Gas Duct under Rapid Depressurization |
| title_fullStr | Numerical Investigation of the Transient Behavior of a Hot Gas Duct under Rapid Depressurization |
| title_full_unstemmed | Numerical Investigation of the Transient Behavior of a Hot Gas Duct under Rapid Depressurization |
| title_short | Numerical Investigation of the Transient Behavior of a Hot Gas Duct under Rapid Depressurization |
| title_sort | numerical investigation of the transient behavior of a hot gas duct under rapid depressurization |
| url | http://dx.doi.org/10.1155/2016/6858425 |
| work_keys_str_mv | AT jingbaoliu numericalinvestigationofthetransientbehaviorofahotgasductunderrapiddepressurization AT shengyaojiang numericalinvestigationofthetransientbehaviorofahotgasductunderrapiddepressurization AT taoma numericalinvestigationofthetransientbehaviorofahotgasductunderrapiddepressurization AT riqiangduan numericalinvestigationofthetransientbehaviorofahotgasductunderrapiddepressurization |