Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:99
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 99
Character Range: 543351–545765

99     100    40     0.155   0.005   0.0015  0.0020   90.0000   91.7000   1.515

 Step 1: Calculation of medf (paragraph 8.4.3.2.2. of this annex):
               Equation 48:

               Equation 47:

               qmedf,I = 0.155 x 4 = 0.620 kg/s

               Equation 46:

Step 2: Buoyancy correction of the particulate mass (paragraph 8.3. of this annex):
Before test:
               Equation 26:

               Equation 25:

 After test:
               Equation 26:

              Equation 25:

               Equation 27:

               mp = 91.7334 mg – 90.0325 mg = 1.7009 mg

 Step 3: Calculation of the particulate mass emission (paragraph 8.4.3.2.2. of this annex):
               Equation 45:

 Step 4: Calculation of the specific emission (paragraph 8.6.3. of this annex):
               Equation 69:
              ePM  = 1.253 / 40 = 0.031 g/kWh

A.5.5. λ-Shift factor (Sλ)
A.5.5.1. Calculation of the λ-shift factor (Sλ)[27]

 Where:
Sλ  = λ-shift factor;
                       inert % = per cent by volume of inert gases in the fuel (i.e. N2, CO2,
                       He, etc.);
 =  per cent by volume of original oxygen in the fuel;
n and m =  refer to average CnHm representing the fuel hydrocarbons, i.e:
 Where:
CH4 =  per cent by volume of methane in the fuel;
                       C2 =  per cent by volume of all C2 hydrocarbons (e.g.: C2H6, C2H4, etc.) in the fuel;
                       C3 =  per cent by volume of all C3 hydrocarbons (e.g.: C3H8, C3H6, etc.) in the fuel;
                       C4 =  per cent by volume of all C4 hydrocarbons (e.g.: C4H10, C4H8, etc.) in the fuel;
                       C5 =  per cent by volume of all C5 hydrocarbons (e.g.: C5H12, C5H10, etc.) in the fuel;
                       diluent =  per cent by volume of dilution gases in the fuel (i.e.: O2*, N2, CO2, He, etc.).
A.5.5.2. Examples for the calculation of the λ-shift factor Sλ:
 Example 1: G25: CH4 = 86 per cent, N2 = 14 per cent (by volume)

 Example 2: GR: CH4 = 87 per cent, C2H6 = 13 per cent (by vol)

 Example 3: USA: CH4 = 89 per cent, C2H6 = 4.5 per cent, C3H8 = 2.3 per cent, C6H14 = 0.2 per cent, O2 = 0.6 per cent, N2 = 4 per cent

                  Annex 4 ‑Appendix 6 Installation of auxiliaries and equipment for emissions test
Number  Auxiliaries                                                                        Fitted for emission test