A Fundamental Study of Leak Detection Technology Using High Pressure Liquid

高圧液体を用いた漏れ検査技術に関する基礎研究

Theoretical study of a liquid leak and gaseous leak under high pressure was conducted in this paper. It is shown that the droplet fall occurs by the large leak of the liquid, and the liquid leak testing can be performed from 1.0×10−9⁹ Pam³/sec to 1.0 Pam³ at the high pressure of 100 MPa. And it is found that the leak flow rate of the liquid increases in proportion to the pressure and that of the gas increases square by the pressure. This analysis gives an index for the determination of the leak judgment value of this liquid leak testing.燃料の超高圧化利用が進む自動車駆動源において，高圧部品の漏れ検査は，高圧ガスの大膨張による大破裂の危険があるため，従来の気体を用いた漏れ検査が実用されていない．そこで我々は，高圧液体を用いた漏れ検査法を考案した．発表では気体と液体の漏れ流量の違いを解析し，液体漏れの原理的な特徴について明らかとする．

• Record URL:
  https://doi.org/10.11351/jsaeronbun.47.1165
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Fukuda, Tatsuya
  • Kurisu, Hiroki
  • Katsuda, Sunao
  • Yamamoto, Setsuo
  • Nakagawa, Mitsugu
• Publication Date: 2016

Language

• English
• Japanese

Media Info

• Media Type: Web
• Features: Figures; References;
• Pagination: pp 1165-1168
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 47
  • Issue Number: 5
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Detection and identification technologies; Diagnostic tests; Fluids; Heat; Infrastructure; Leak tests; Pressure
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01664759
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Mar 29 2018 9:33AM