Study on the Behaviors of a Conceptual Passive Containment Cooling System
The containment is an ultimate and important barrier to mitigate the consequences after the release of mass and energy during such scenarios as loss of coolant accident (LOCA) or main steam line break (MSLB). In this investigation, a passive containment cooling system (PCCS) concept is proposed for...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2014/358365 |
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| _version_ | 1832551371891539968 |
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| author | Jianjun Wang Xueqing Guo Shengzhi Yu Baowei Cai Zhongning Sun Changqi Yan |
| author_facet | Jianjun Wang Xueqing Guo Shengzhi Yu Baowei Cai Zhongning Sun Changqi Yan |
| author_sort | Jianjun Wang |
| collection | DOAJ |
| description | The containment is an ultimate and important barrier to mitigate the consequences after the release of mass and energy during such scenarios as loss of coolant accident (LOCA) or main steam line break (MSLB). In this investigation, a passive containment cooling system (PCCS) concept is proposed for a large dry concrete containment. The system is composed of series of heat exchangers, long connecting pipes with relatively large diameter, valves, and a water tank, which is located at the top of the system and serves as the final heat sink. The performance of the system is numerically studied in detail under different conditions. In addition, the influences of condensation heat transfer conditions and containment environment temperature conditions are also studied on the behaviors of the system. The results reveal that four distinct operating stages could be experienced as follows: startup stage, single phase quasisteady stage, flashing speed-up transient stage, and flashing dominated quasisteady operating stage. Furthermore, the mechanisms of system behaviors are thus analyzed. Moreover, the feasibility of the system is also discussed to meet the design purpose for the containment integrity requirement. Considering the passive feature and the compactness of the system, the proposed PCCS is promising for the advanced integral type reactor. |
| format | Article |
| id | doaj-art-0d91fdb88beb4e0c9cd23511395f8c8c |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-0d91fdb88beb4e0c9cd23511395f8c8c2025-02-03T06:01:37ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832014-01-01201410.1155/2014/358365358365Study on the Behaviors of a Conceptual Passive Containment Cooling SystemJianjun Wang0Xueqing Guo1Shengzhi Yu2Baowei Cai3Zhongning Sun4Changqi Yan5National Defense Key Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, ChinaNational Defense Key Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, ChinaNational Defense Key Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, ChinaNational Defense Key Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, ChinaNational Defense Key Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, ChinaNational Defense Key Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, ChinaThe containment is an ultimate and important barrier to mitigate the consequences after the release of mass and energy during such scenarios as loss of coolant accident (LOCA) or main steam line break (MSLB). In this investigation, a passive containment cooling system (PCCS) concept is proposed for a large dry concrete containment. The system is composed of series of heat exchangers, long connecting pipes with relatively large diameter, valves, and a water tank, which is located at the top of the system and serves as the final heat sink. The performance of the system is numerically studied in detail under different conditions. In addition, the influences of condensation heat transfer conditions and containment environment temperature conditions are also studied on the behaviors of the system. The results reveal that four distinct operating stages could be experienced as follows: startup stage, single phase quasisteady stage, flashing speed-up transient stage, and flashing dominated quasisteady operating stage. Furthermore, the mechanisms of system behaviors are thus analyzed. Moreover, the feasibility of the system is also discussed to meet the design purpose for the containment integrity requirement. Considering the passive feature and the compactness of the system, the proposed PCCS is promising for the advanced integral type reactor.http://dx.doi.org/10.1155/2014/358365 |
| spellingShingle | Jianjun Wang Xueqing Guo Shengzhi Yu Baowei Cai Zhongning Sun Changqi Yan Study on the Behaviors of a Conceptual Passive Containment Cooling System Science and Technology of Nuclear Installations |
| title | Study on the Behaviors of a Conceptual Passive Containment Cooling System |
| title_full | Study on the Behaviors of a Conceptual Passive Containment Cooling System |
| title_fullStr | Study on the Behaviors of a Conceptual Passive Containment Cooling System |
| title_full_unstemmed | Study on the Behaviors of a Conceptual Passive Containment Cooling System |
| title_short | Study on the Behaviors of a Conceptual Passive Containment Cooling System |
| title_sort | study on the behaviors of a conceptual passive containment cooling system |
| url | http://dx.doi.org/10.1155/2014/358365 |
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