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• Material Type: 文書・図像類
• Title: None
• Author/Editor: 三宅 収; 川部 隆平; 姫野 嘉昭; 宮口 公秀
• Author Heading: 三宅 収; 川部 隆平; 姫野 嘉昭; 宮口 公秀
• Publication Date: 1985-03
• Publication Date (W3CDTF): 1985-03
• Alternative Title: Comparison of Sofire-MII Predictions with the Results of German FAUNA F5 and F6 Tests
• Periodical title: PNC TN941 85-67
• Text Language Code: eng
• Target Audience: 一般
• Note (General): The SOFIRE-MII code, which was developed based on the U.S. SOFIRE-II code, analyzes a sodium pool fire accident in the LMFBR plant to predict the pressure and temperature of atmosphere as well as the structural temperatures within a reactor building. To date, the code has been validated by test data at low oxygen concentrations. However, the code validation at high oxygen concentration has been incomplete. To complete this validation, the calculations of pool fire test results that were obtained with an air-filled closed vessel, are conducted. The test results used for this purpose are those taken from the FAUNA F5 and F6 tests. FAUNA is a large sodium fire test facility installed in Kernforschungszentrum Karlsruhe (KfK), Federal Republic of Germany. The calculations include sensitivity studies on the important input parameters in SOFIRE-MII; the burning ratio, S (weight ratio of sodium/oxygen consumed by a the radiation heat exchange coefficient, F between a pool and the atmospheric gas, and the heat removal rate from the external surface of the test vessel. Enhancement of sodium combustion at the initial stage of the test due to sodium filling by a columnar high-speed sodium flow from an open nozzle over the pan is also evaluated. The result indicates that, as a whole, the test results are predicted fairly well by SOFIRE-MII with the S value of l.44that represents the sodium combustion generating 100\% sodium peroxide as its reaction products and with F=0.65. The sensitivity studies of these parameters indicate that the S value has a significant effect, while the F value does not. The heat removal rate from the external surface of the vessel has also a little effect on the gas pressure and temperature, although the vessel wall temperature is significantly affected by this. Contribution of a columnar combustion during the sodium fill at, the initial stage of the test is found to be significant to the initial gas temperature and pressure spikes.; None
• Source: /PNC-TN941-85-67.pdf （fulltext）; https://jopss.jaea.go.jp/pdfdata/PNC-TN941-85-67.pdf
• Access Restrictions: 限定公開
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 日本原子力研究開発機構 : JOPSS:JAEA Originated Papers Searching System

• Summary, etc.: The SOFIRE-MII code, which was developed based on the U.S. SOFIRE-II code, analyzes a sodium pool fire accident in the LMFBR plant to predict the pres...