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Division 6.2.2

Original text. Later amendments are not shown.

For all equations in paragraph 6. of this Sub-Annex:

FC

  • is the fuel consumption of a specific fuel, 1/100 km (or m3 per 100 km in the case of natural gas or kg/100 km in the case of hydrogen);

    • H/C

  • is the hydrogen to carbon ratio of a specific fuel CXHYOZ;

    • O/C

  • is the oxygen to carbon ratio of a specific fuel CXHYOZ;

    • MWC

  • is the molar mass of carbon (12,011 g/mol);

    • MWH

  • is the molar mass of hydrogen (1,008 g/mol);

    • MWO

  • is the molar mass of oxygen (15,999 g/mol);

    • ρfuel

  • is the test fuel density, kg/l. For gaseous fuels, fuel density at 15 °C;

    • HC

  • are the emissions of hydrocarbon, g/km;

    • CO

  • are the emissions of carbon monoxide, g/km;

    • CO2

  • are the emissions of carbon dioxide, g/km;

    • H2O

  • are the emissions of water, g/km;

    • H2

  • are the emissions of hydrogen, g/km;

    • p1

  • is the gas pressure in the fuel tank before the applicable test cycle, Pa;

    • p2

  • is the gas pressure in the fuel tank after the applicable test cycle, Pa;

    • T1

  • is the gas temperature in the fuel tank before the applicable test cycle, K;

    • T2

  • is the gas temperature in the fuel tank after the applicable test cycle, K;

    • Z1

  • is the compressibility factor of the gaseous fuel at p1 and T1;

    • Z2

  • is the compressibility factor of the gaseous fuel at p2 and T2;

    • V

  • is the interior volume of the gaseous fuel tank, m3;

    • d

  • is the theoretical length of the applicable phase or cycle, km.