한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제21권6호
  • /
  • Pages.15-21
  • /
  • 2022
  • /
  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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유동특성을 고려한 CNG 충전 노즐의 최적 설계에 관한 연구

A Study on Optimal Design of CNG Charging Nozzle Considering Flow Characteristics

  • 곽기명 (경상국립대학교 기계항공공학부) ;
  • 백진욱 (경상국립대학교 기계항공공학부) ;
  • 김남용 (경상국립대학교 기계항공공학부) ;
  • 조용민 (천마기계(주)) ;
  • 류성기 (경상국립대학교 기계항공공학부)
  • Gwak, Gi-Myung (School of Mechanical & Aerospace Engineering, Gyeongsang National University) ;
  • Baek, Jin-Uk (School of Mechanical & Aerospace Engineering, Gyeongsang National University) ;
  • Kim, Nam-Yong (School of Mechanical & Aerospace Engineering, Gyeongsang National University) ;
  • Cho, Yong-Min (Chunma Machine C0., Ltd.) ;
  • Lyu, Sung-Ki (School of Mechanical & Aerospace Engineering, Gyeongsang National University)
  • 투고 : 2022.04.03
  • 심사 : 2022.04.22
  • 발행 : 2022.06.30
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초록

This study considered the internal flow considering the internal shape of the CNG filling nozzle, which is widely distributed in Korea. The CNG filling nozzle is the last part to pass through in the CNG filling process and has a significant influence on the filling efficiency. The mechanism was identified by disassembling the CNG filling nozzle and performing a flow analysis according to the mechanism. Consequently, the energy loss owing to eddy currents in the flow was determined, and modeling was proposed to reduce the energy loss by simplifying the shape and parts.

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과제정보

본 논문은 과학기술정보통신부 선도연구센터 기초연구사업 (과제번호: NRF-2019R1A5A8083201)과 산학연 Collabo R&D 사업화R&D(2단계) 사업 (과제번호 : S3096431), 2022년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원(202140 00000520, 자원순환(재제조)산업 고도화 인력양성) 지원에 의해 연구되었으며 이에 감사드립니다.

참고문헌

  1. Kang, S. K., Huh, Y. S., "A Study on the Quantitative Risk Assessment of Hydrogen-CNG Complex Refueling Station," Journal of the Korean Institute of Gas, Vol. 24, No. 1, pp. 41-48, 2020. https://doi.org/10.7842/KIGAS.2020.24.1.41
  2. Jang, K. S., Hong, M. S., "Safety Evaluations for Defects in CNG Pressure Vessels," Journal of the Korean Society of Manufacturing Technology Engineers, Vol. 27, No. 5, pp. 430-438, 2018. https://doi.org/10.7735/ksmte.2018.27.5.430
  3. Lim, O. T., "Study on Performance and Emission Characteristics of CNG/Diesel Dual-Fuel Engine," The Korean Society of Mechanical Engineers, Vol. 35, No. 9, pp. 869-874, 2011. https://doi.org/10.3795/KSME-B.2011.35.9.869
  4. Kim, C. K., Yoo, J. W., "Finite Element Analysis on the Sealing Contact Stress of a CNG Fueling Nipple for Vehicles," Journal of the Korean Institute of Gas Vol. 16, No. 6, pp. 67-72, 2012. https://doi.org/10.7842/KIGAS.2012.16.6.67
  5. Yoo, G. H., Kim, J. L., Lee, T. S., Lee, J. H., "Study of the Characteristics of Hydrogen-Gas Filling Process of Ultra-Light Composite Tanks for Fuel-Cell Vehicles," The Korean Society of Mechanical Engineers, A, Vol. 35, No. 7, pp. 813-817, 2011. https://doi.org/10.3795/KSME-A.2011.35.7.813
  6. Kim, N. Y., Wu, Y. T., Qin, Z., Cho, Y. M., Lyu, S. K., "A Study on the Optimal Design According to the Piston Shape of the 3/8''Hydraulic Quick Coupler," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 20, No 2, pp. 66-71, 2021.