Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Study on the Particle Size and Velocity Profile on a Gasoline Port Injector Using a Phase Doppler Particle Analyzers (PDPA)

위상 도플러 입자 분석기(PDPA)를 이용한 가솔린 포트 인젝터의 입자 크기 및 속도 프로파일에 관한 연구

  • KIM, HYOJIN (Grad. School of Mechanical Engineering, University of Ulsan) ;
  • JO, HYUN (Grad. School of Mechanical Engineering, University of Ulsan) ;
  • TONGCHAI, SAKDA (Grad. School of Mechanical Engineering, University of Ulsan) ;
  • LIM, OCKTACKE (School of Mechanical Engineering, University of Ulsan)
  • 김효진 (울산대학교 대학원 기계공학부) ;
  • 조현 (울산대학교 대학원 기계공학부) ;
  • 삭다 통차이 (울산대학교 대학원 기계공학부) ;
  • 임옥택 (울산대학교 기계공학부)
  • Received : 2017.05.31
  • Accepted : 2017.06.30
  • Published : 2017.06.30
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Abstract

This study is to investigate particle size and velocity profile of gasoline port injector using Phase Doppler Particle Analyzer (PDPA). In this experiment, a GV 250 Delphi port injector used for motorcycles was used for liquid injection. The injector consists of four holes and has a static flow rate of 2.13 g/s. The fuel used in the injection was N-heptane, which is similar to gasoline, as an alternative fuel. The test fuel was injected at an atmospheric temperature of $20^{\circ}C$ and an open atmosphere of 1 atm. The injection time was 10 ms and the injection pressure was 3.5 bar in PDPA experiment. The experimental target position was fiexd at 30, 50 and 75 mm from the nozzle tip and data were collected for a total of 10,000 samples. The experimental results show that the length diameter (D10), the Sauter mean diameter ($D_{32}$), and the mean droplet velocity (MDV) are $45-54{\mu}m$, $99-115{\mu}m$ and 15-21 m/s, respectively.

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References

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