Performance Characteristics of Divergent-Convergent Nozzles for Subcooled Hot Water
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概要
- 論文の詳細を見る
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.
- 一般社団法人日本機械学会の論文
- 1988-11-15
著者
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Inoue Katsuya
Institute For Molecular Science And Grad. Univ. Advanced Studies
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OHTA Junichi
Dept. Mech. Eng., Fukui University
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Akagawa K
Kobe Univ. Kobe Jpn
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Akagawa Koji
Department Of Mechanical Engineering Kobe University
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Ohta J
Fukui Univ. Fukui Jpn
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Ohta Junichi
Department Of Mechanical Engineering Fukui University
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Fujii Terushige
Department Mechanical Of Engineering Kobe University
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Fujii Terushige
Department Of Mechanical Engineering Kobe Universiti
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Ohta J
Dept. Mech. Eng. Fukui University
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Inoue Kazunori
Department Of Physics Faculty Of Science Ehime University:mitsubichi Electric Co.
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AKAGAWA Keiji
Department of Mechanical Engineering, Kobe University
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INOUE Kenji
Kawasaki Heavy Industry
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TANIGUCHI Kazutoshi
Department of Mechanical Engineering, Kobe University
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Akagawa Keiji
Department Of Mechanical Engineering Kobe University
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Taniguchi Kazutoshi
Department Of Mechanical Engineering Kobe University
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