Document ID: chunk:federal_register_of_legislation:F2024L00446:reg:16:p96
Version: federal_register_of_legislation:F2024L00446
Segment Type: reg
Provision Reference: reg 16 (pt 96/108)
Character Range: 1159941–1163674

is the nominal REESS voltage determined according to IEC 60050-482, V;
                      is the electric current of REESS i during the considered period j, determined according to paragraph 2. of this appendix, A;
                      is the time at the beginning of the considered period j, s;
                      is the time at the end of the considered period j, s.
                     i is the index number of the considered REESS;
                     n is the total amount of REESS;
                     j is the index number for the considered period, where a period shall be any applicable cycle phase, combination of cycle phases and the applicable total cycle;
                      is the conversion factor from Ws to Wh.
              4.2. For correction of CO2 emission, g/km, combustion process-specific Willans factors from Table A6.App2/3 shall be used.
              4.3. The correction shall be performed and applied for the total cycle and for each of its cycle phases separately, and shall be recorded.
              4.4. For this specific calculation, a fixed electric power supply system alternator efficiency shall be used:
              4.5. The resulting CO2 emission difference for the considered period j due to load behaviour of the alternator for charging a REESS shall be calculated using the following equation:
              where:
                      is the resulting  mass emission difference of period j, g/km;
                      is the REESS energy change of the considered period j calculated according to paragraph 4.1. of this appendix, Wh;
                      is the driven distance of the considered period j, km;
                     j is the index number for the considered period, where a period shall be any applicable cycle phase, combination of cycle phases and the applicable total cycle;
                     0.0036 is the conversion factor from Wh to MJ;
                      is the efficiency of the alternator according to paragraph 4.4. of this appendix;
                      is the combustion process-specific Willans factor as defined in Table A6.App2/3, gCO2/MJ;
              4.5.1. The CO2 values of each phase and the total cycle shall be corrected as follows:
              For Level 1A;
              MCO2,p,3 = MCO2,p,2b – ΔMCO2,j
              MCO2,c,3 = MCO2,c,2b – ΔMCO2,j

              For Level 1B
              MCO2,p,3 = (MCO2,p,1 - ΔMCO2,j)
              MCO2,c,3 = (MCO2,c,2 - ΔMCO2,j)
              where:
                   ΔMCO2,j  is the result from paragraph 4.5. of this appendix for a period  j, g/km.
              4.6. For the correction of CO2 emission, g/km, the Willans factors in Table A6.App2/3 shall be used.
        Table A6.App2/3
Willans factors (as applicable)
                      Naturally aspirated  Pressure-charged
Positive ignition     Petrol (E0)          l/MJ               0.0733  0.0778
gCO2/MJ               175                  186
Petrol (E10)          l/MJ                 0.0756             0.0803
gCO2/MJ               174                  184
CNG (G20)             m³/MJ                0.0719             0.0764
gCO2/MJ               129                  137
LPG                   l/MJ                 0.0950             0.101
gCO2/MJ               155                  164
E85                   l/MJ                 0.102              0.108
gCO2/MJ               169                  179
Compression ignition  Diesel (B0)          l/MJ               0.0611  0.0611
gCO2/MJ               161                  161
Diesel (B7)           l/MJ                 0.0611             0.0611
gCO2/MJ               161                  161

Annex B6 - Appendix 3

Calculation of gas energy ratio for gaseous fuels (LPG