Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:9:p67
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 9 (pt 67/71)
Character Range: 398848–401644

in the mean cycle power:

P(n) = (0,1 × 0,15) + (96,8 × 0,08) + (55,2 ×0,10) + (82,9 × 0,10) + (46,8 × 0,05) + (70,1 × 0,05)
+  (23,0  ×  0,05)  +  (114,3  ×  0,09)  +  (27,0  ×  0,10)  +  (122,0  ×  0,08)  +  (28,6  ×  0,05)
                 + (87,4 × 0,05) + (57,9 × 0,05)

                = 60,006 kW

              Calculation of the specific NOx emission of the random point (Annex III, Appendix 1, Section 4.6.1):

              Assume the following values have been determined on the random point: nZ = 1 600 min-1
              MZ = 495 Nm

              NOx mass,Z = 487,9 g/h (calculated according to the previous formulae) P(n)Z = 83 kW
              NOx,Z = 487,9/83 = 5,878 g/kWh

              Determination of the emission value from the test cycle (Annex III, Appendix 1, Section 4.6.2):

              Assume the values of the four enveloping modes on the ESC to be as follows:

 nRT     nSU     ER      ES      ET      EU      MR    MS     MT    MU
 1 368   1 785   5,943   5,565   5,889   4,973   515   460   681   610

1.2.                            Particulate emissions

              Particulate measurement is based on the principle of sampling the particulates over the complete cycle, but determining the sample and flow rates (MSAM and GEDF) during the individual modes. The calculation of GEDF depends on the system used. In the following examples, a system with CO2 measurement and carbon balance method and a system with flow measurement are used. When using a full flow dilution system, GEDF is directly measured by the CVS equipment.

              Calculation of GEDF (Annex III, Appendix 1, Sections 5.2.3 and 5.2.4):

              Assume the following measurement data of mode 4. The calculation procedure is identical for the other modes.

  GEXH      GFUEL     GDILW     GTOTW     CO2D (%)     CO2A (%)
  (kg/h)    (kg/h)    (kg/h)    (kg/h)
  334,02    10,76     5,4435    6,0       0,657       0,040

                (a)    carbon balance method

                (b)    Flow measurement method

              Calculation of the mass flow rate (Annex III, Appendix 1, Section 5.4):

              The GEDFW flow rates of the individual modes are multiplied by the respective weighting factors, as indicated in Annex III, Appendix 1, Section 2.7.1, and summed up to result in the mean GEDF over the cycle. The total sample rate MSAM is summed up from the sample rates of the individual modes.

GEDFW  = (3 567 × 0,15) + (3 592 × 0,08) + (3 611 × 0,10) + (3 600 × 0,10) + (3 618 × 0,05) + (3 600
× 0,05) + (3 640 × 0,05) + (3 614 × 0,09) + (3 620 × 0,10) + (3 601 × 0,08) + (3 639 × 0,05)
                  + (3 582 × 0,05) + (3 635 × 0,05)

                 = 3 604,6 kg/h

              MSAM = 0,226 + 0,122 + 0,151 + 0,152 + 0,076 + 0,076 + 0,076 +