Performance Characteristics of Divergent-Convergent Nozzles for Subcooled Hot Water

• 資料種別: 文書・図像類
• タイトル: Performance Characteristics of Divergent-Convergent Nozzles for Subcooled Hot Water
• 著者・編者: AKAGAWA, Koji; FUJII, Terushige; OHTA, Junichi; INOUE, Kenji; TANIGUCHI, Kazutoshi
• 著者標目: AKAGAWA, Koji; FUJII, Terushige; OHTA, Junichi; INOUE, Kenji; TANIGUCHI, Kazutoshi
• 出版事項: 日本機械学会
• 出版年月日等: 1988-02
• 出版年（W3CDTF）: 1988-02
• タイトル（掲載誌）: The Japan Society of Mechanical Engineers, Series II
• 巻号年月日等（掲載誌）: 31 4
• 掲載巻: 31
• 掲載号: 4
• 掲載ページ: 718-726
• 本文の言語コード: eng
• 件名標目: Multiphase Flow; Nozzle Performance; Geothermal Resources; Total Flow Turbine; Subcooled Hot Water
• 対象利用者: 一般
• 一般注記: The purpose of this study is to obtain basic infomation for the design of a convergent-divergent nozzle for flashing expansion of initially subcooled water. The conical-type nozzles had a sharp-edged throat of 3.5mm diameter. Nozzles with different divergent angles and different exit stream-expansion ratios were tested. Initially subcooled water samples at an inlet pressure of 0.47MPa and inlet temperatures of 409.7 to 421.5K(inlet subcoolings of 13 to 1.2K)were used in the range of nozzle back pressures of 10 to 160kPa. As a result, (1) The values of the thrust coefficient are discussed in relation to the subcooling,back pressure,nozzle divergent angle,and exit stream-expansion ratio; (2)A method to determine the optimum exit stream-expansion ratio for a given pressure ratio is proposed;and (3)The relationship between the critical mass flow rate and the critical pressure ratio is discussed baded on the experiments.
• 一次資料へのリンクURL: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=22805&item_no=1&attribute_id=22&file_no=1
• オンライン閲覧公開範囲: 限定公開
• 著作権情報: 〓 1988 日本機械学会
• 連携機関・データベース: 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
• 提供元機関・データベース: 福井大学 : 福井大学学術機関リポジトリ