Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:9:p66
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 9 (pt 66/71)
Character Range: 395562–399025

(if any): ..... .......... ......... .......... ......... .......... ......... .......... ......... ........

             1.4.                         Emission levels of the engine/parent engine (1)

             1.4.1.                     ESC-test (if applicable):

             CO:............................g/kWh

             THC:...........................g/kWh

             NOx:...........................g/kWh

             PT:............................g/kWh

             1.4.2.                     ELR-test (if applicable):

             Smoke value: . .......... ......... .......... ......... ......... m-1

       1.4.3 ETC-test (if applicable):

             CO:..........................g/kWh

             THC:..........................g/kWh (1)

             NMHC:........................g/kWh (1)

             CH4:..........................g/kWh (1)

             NOx:..........................g/kWh (1)

             PT:...........................g/kWh (1)

               (1)  Delete as appropriate.

ANNEX VII

        EXAMPLE OF CALCULATION PROCEDURE

                1. ESC TEST

1.1.                            Gaseous emissions

              The measurement data for the calculation of the individual mode results are shown below. In this example, CO and NOx are measured on a dry basis, HC on a wet basis. The HC concentration is given in propane equivalent (C3) and has to be multiplied by 3 to result in the C1 equivalent. The calculation procedure is identical for the other modes.

  P (kW)    Ta (K)   Ha (g/kg)   GEXH     GAIRW    GFUEL   HC      CO      NOx (ppm)
                                 (kg)     (kg)     (kg)    (ppm)   (ppm)
 82,9      294,8     7,81        563,38   545,29   18,09   6,3     41,2     495

              Calculation of the dry to wet correction factor KW,r (Annex III, Appendix 1, Section 4.2):

              Calculation of the wet concentrations:

        CO = 41,2 × 0,9239 = 38,1 ppm

        NOx = 495 × 0,9239 = 457 ppm

              Calculation of the NOx humidity correction factor KH,D (Annex III, Appendix 1, Section 4.3):

              Calculation of the emission mass flow rates (Annex III, Appendix 1, Section 4.4):

        NOx = 0,001587 × 457 × 0,9625 × 563,38 = 393,27 g/h

        CO = 0,000966 × 38,1 × 563,38 = 20,735 g/h

        HC = 0,000479 × 6,3 × 3 × 563,38 = 5,100 g/h

              Calculation of the specific emissions (Annex III, Appendix 1, Section 4.5):

              The following example calculation is given for CO; the calculation procedure is identical for the other components.

              The emission mass 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 emission mass flow rate over the cycle:

CO = (6,7 × 0,15) + (24,6 × 0,08) + (20,5 × 0,10) + (20,7 × 0,10) + (20,6 × 0,05) + (15,0 × 0,05)
+ (19,7 × 0,05) + (74,5 × 0,09) + (31,5 × 0,10) + (81,9 × 0,08) + (34,8 × 0,05) + (30,8 × 0,05)
                 + (27,3 × 0,05)

                = 30,91 g/h

              The engine power of the individual modes is 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 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  ×