DOI QR코드

DOI QR Code

Fuel Consumption and CO2 Characteristics of HCNG Bus

HCNG 버스의 연비와 CO2 배출특성

  • Received : 2017.01.02
  • Accepted : 2017.04.25
  • Published : 2017.04.30

Abstract

For the HCNG bus using fuel which is the mixture gas of hydrogen and natural gas, the fuel efficiency and $CO_2$ emission characteristics were analyzed based on the WHVC test results and compared with that of the CNG and diesel buses. $CO_2$ emission characteristics were also analyzed by contribution effects such as carbon emission factor and fuel consumption. As a result, the fuel economy of HCNG bus was evaluated to be 11.5% improvement compared to CNG bus, and it was also showed equivalent to diesel bus. In addition, the $CO_2$ emission of HCNG bus was reduced 20.4% and 34.5% compared to CNG bus and diesel bus respectively. It was concluded that the $CO_2$ emission characteristics were influenced by the carbon emission factor depending on fuel composition and the fuel consumption according to the engine performance.

압축 천연가스에 수소를 혼합한 HCNG 연료를 사용하는 HCNG 버스에 대해 WHVC 차량시험 결과를 토대로 연료 경제성 및 $CO_2$ 배출특성을 분석하였다. 동급 CNG 버스 및 디젤버스 시험결과와 비교하여 HCNG 버스의 연비 개선효과와 $CO_2$ 저감효과를 고찰하였다. $CO_2$ 배출특성은 탄소배출계수에 따른 연료효과와 연비에 의한 효과로 분석하였다. 분석결과 HCNG 버스는 CNG 버스 보다 연비는 11.5% 개선되었고 디젤버스와는 동등수준을 보이는 것으로 나타났다. 또한 $CO_2$ 배출 특성으로 HCNG 버스는 CNG 버스에 비해 20.4% 개선효과가 있고 디젤버스에 비해 34.5% 향상되는 것으로 분석되었다. 이산화탄소 배출특성은 연료성분에 따른 탄소배출계수와 엔진성능에 따른 연비에 영향을 받는 것으로 귀결되었다.

Keywords

References

  1. Project Report, "A Development of Engine and Fueling Station for HCNG Fueled City Bus", KOGAS, 2016
  2. SM Kim, JS Lee, JO Han, YC Kim, YC Lee, JM Chae, SH Hong, "High Pressure Refueling Method for HCNG Gas Supply", KIGAS, vol 18, No. 1, 2014
  3. DW Lee, JM Chae, JO Han, "Recommended Practice for Measuring the Fuel Economy of CNG Vehicles", KIGAS Proceeding, Nov., 2015
  4. YC Ha, SM Lee, JY Her, KJ Lee, SJ Lee "Separation, Thermodynamic ; Correlations between the Important Physical Properties of Natural-Gas", Korean Chemical Engineering Research, Vol.47 No.5, 2009
  5. 40 CFR 600.113-12, "Fuel economy, $CO_2$ emissions, and carbon related exhaust emission calculations.", www.ecfr.gov
  6. UNECE regulation No 101- revision3, Annex6. "Method of measuring emission of $CO_2$ and fuel consumption of vehicles powered by an IC engine only", www.unece.org
  7. JO Han,YC Lee, JS Lee, YC Kim, HT Kim, YA Cho, JM Chae "Analysis of Economical and Environmental Benefits for HCNG bus", KIGAS Proceeding, Nov., 2016
  8. Test Report, "Performance of EURO6 Diesel Bus", ZYLE DW BUS, 2015
  9. IPCC(intergovernmental panel on climate change)/ publications and data/supporting data/emission factor database, http://www.ipcc.ch

Cited by

  1. Effects of Fuel Rail Volume on Gas Injection Characteristics (1) : Injection Quantity vol.23, pp.4, 2019, https://doi.org/10.9726/kspse.2019.23.4.022
  2. Effects of Fuel Rail Volume on Gas Injection Characteristics (2) : In-rail Pressure Fluctuation Characteristics vol.23, pp.4, 2017, https://doi.org/10.9726/kspse.2019.23.4.031