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Bibliographic Record
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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 堀 慶一北原 種道
- Publication Date
- 1980-11
- Publication Date (W3CDTF)
- 1980
- Alternative Title
- A Natural circulation rate computer code for a single channel; Users' manual of computer code "NASCH"
- Periodical title
- PNC TN952 80-15
- Target Audience
- 一般
- Note (General)
- 出版タイプ: NA圧力管型原子炉において,外部電源喪失(LOPA)あるいは全動力電源喪失(TBO)時のように,水位が蒸気ドラムの底より低下した状態での自然循環に崩壊熱除去がゆだねられる場合では,自然循環流量の把握が冷却能力を評価する際の重要な事項となる。 本報告は,単一チャンネルにおける定常自然循環流量を計算するコード"NASCH"を解説したものである。本コードは,HTLループを対象に構成されているが,"ふげん"あるいは実証覆を対象とした計算も可能である。 本コードは,低水位状態での計算が実行可能で,HTLのデータと計算結果の比較検討から妥当性が確認されている。 プログラムは,フォートランで記述され,プログラムサイズは約160Kバイトである。The removal of decay heat from a pressure tube type reactor at a loss of power accident (LOPA) or a total black out (TBO) depends on natural circulation with low water level. In this case, the information on the natural circulation rate is one of the important items to estimate the ability of core cooling. This report is a users' manual of a computer code "NASCH" which calculates the steady natural circulation rate for a single channel loop. This code can deal with the natural circulation in not only the HTL loop but also HWR. The validity of this code is confirmed by comparison between the calculated results and the HTL data. The program is written in Fortran and its size is 160 Kbyte.
- Source
- /PNC-TN952-80-15.pdf (fulltext)