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Analysis of fuel economy characteristics depending on the fuel quality and calculation method changed

연료품질 및 연비계산 방법 변화에 따른 연비특성 분석

  • Lee, Min-Ho (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Lim, Wan-Gyu (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Lim, Jae-Hyuk (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Kim, Ki-Ho (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
  • 이민호 (한국석유관리원 석유기술연구소) ;
  • 임완규 (한국석유관리원 석유기술연구소) ;
  • 임재혁 (한국석유관리원 석유기술연구소) ;
  • 김기호 (한국석유관리원 석유기술연구소)
  • Received : 2016.05.16
  • Accepted : 2016.07.19
  • Published : 2016.08.31

Abstract

Nowadays, emissions of a vehicle are been getting by testing on a chassis dynamometer and a test modes. Also, fuel efficiency is calculated by carbon-balance method that is applying the emissions(CO, THC and $CO_2$) to the fuel calculation formular. In Korea, before 2014, the formular did not include the fuel factors (density, net heat value and carbon weight fraction), but the constants were based on the fuel properties of 2000s. So, this formular did not consider a characteristic of test fuel property that was changed when progressing fuel efficiency test. The characteristics of test fuel property which was distributed in domestic have a difference of quality depending on production regions and oil-refining facilities. Because the fuel properties are variable value during refineries, crude oils and blending contents of a bio-fuel, vehicle fuel is changed for each test. Therefore, the fuel qualities need to apply for a fuel economy test. In this paper, changing patterns of a fuel properties were reviewed during history of fuel standards. Also, the appropriateness of the methods was discussed by calculating and comparing fuel economies with the fuel factors and the constants.

Keywords

References

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