Annex VII

Annex VII to Delegated Regulation (EU) 2017/654 is amended as follows:

1. (1)

   point 2.1 is replaced by the following:

   ‘2.1.

   Measurement of gaseous emissions in raw exhaust gas’;

2. (2)

   in point 2.1.1, equation (7-1) is replaced by the following:

   ‘

   $q_{m\mathrm{gas,}i}=k_h\times k\times u_{\mathrm{gas}}\times q_{m\mathrm{ew,}i}\times c_{\mathrm{gas,}i}\times 3600$

   (7-1)

   ’;

3. (3)

   in point 2.1.3, equation (7-4) is replaced by the following:

   ‘

   $k_{\mathrm{w,a}}=\frac{\left(1-\frac{\mathrm{1,2442}\times H_a+\mathrm{111,19}\times w_H\times \frac{q_{m\mathrm{f,}i}}{q_{m\mathrm{ad,}i}}}{\mathrm{773,4}+\mathrm{1,2442}\times H_a+\frac{q_{m\mathrm{f,}i}}{q_{m\mathrm{ad,}i}}\times k_f\times 1000}\right)}{\left(1-\frac{p_r}{p_b}\right)}$

   (7-4)

   ’;

4. (4)

   in point 2.1.5.2., equation (7-13) is replaced by the following:

   ‘

   $M_{\mathrm{e,i}}=\frac{1+\frac{q_{\mathrm{mf,i}}}{q_{\mathrm{maw,i}}}}{\frac{q_{\mathrm{mf,i}}}{q_{\mathrm{maw,i}}}\times \frac{\frac{\alpha }{4}+\frac{\epsilon }{2}+\frac{\delta }{2}}{\mathrm{12,011}+\mathrm{1,00794}\times \alpha +\mathrm{15,9994}\times \epsilon +\mathrm{14,0067}\times \delta +\mathrm{32,065}\times \gamma }+\frac{\frac{H_a\times {10}^{-3}}{2\times \mathrm{1,00794}+\mathrm{15,9994}}+\frac{1}{M_a}}{1+H_a\times {10}^{-3}}}$

   (7-13)

   ’;

5. (5)

   in point 2.1.6.4, in the legend of equation (7-21), the row corresponding to the term ‘w_C ’ is replaced by the following:

   w _C

   ‘carbon content of fuel [% mass] (see equation (7-82) of point 3.3.3.1 or table 7.3)’;

6. (6)

   in point 2.2.3, in the legend of equation (7-34), the rows corresponding to the terms ‘M_da,w’ and ‘M_r,w’ are replaced by the following:

   M _da,w

   ‘molar mass of dilution air [g/mol] (see equation (7-144) of point 3.9.3)

   M _r,w

   molar mass of raw exhaust gas [g/mol] (see Appendix 2 point (5)’;

7. (7)

   point 2.3.1 is replaced by the following:

   ‘2.3.1.

   Transient (NRTC and LSI-NRTC) test cycles and RMC

   The particulate mass shall be calculated after buoyancy correction of the particulate sample mass in accordance with point 8.1.13.2.5 of Annex VI.’;

8. (8)

   in point 2.3.1.1.2, equation (7-46) is replaced by the following:

   ‘

   $q_{m\mathrm{edf,}i}=q_{m\mathrm{ew,}i}\times r_{\mathrm{d,}i}$

   (7-46)

   ’;

9. (9)

   point 2.4.1.1 is amended as follows:

   1. (a)

      in the legend of equation (7-59), the following row is added:

      Δt_i

      ‘the measurement interval [s]’;

   2. (b)

      in the legend of equation (7-60), the row corresponding to the term ‘T_{i, AUX}’ is replaced by the following:

      T_{i, AUX}

      ‘corresponding value of torque required to drive auxiliaries determined in accordance with equation (6-18) of Annex VI.’;

10. (10)

    in point 2.4.1.2, the legend of equation (7-64) is amended as follows:

    1. (a)

       the row corresponding to the term ‘P_i’ is replaced by the following:

       P_i

       ‘engine power for the mode i [kW] calculated by adding to the measured power P_meas [kW] the power required to drive auxiliaries P_AUX [kW] determined in accordance with equation (6-8) of Annex VI (P_i = P_meas  + P_AUX ).’;

    2. (b)

       the following row is added:

       N_mode

       ‘number of modes in applicable discrete-mode NRSC’;

11. (11)

    point 2.4.2.2 is amended as follows:

    1. (a)

       equation (7-66) is replaced by the following:

       ‘

       $e_{\mathrm{PM}}=\frac{q_{m\mathrm{PM}}}{\sum _{i=1}^{N_{\mathrm{mode}}}\left(P_i\times {\mathrm{WF}}_i\right)}$

       (7-66)

       ’;

    2. (b)

       the legend of equation (7-66) is amended as follows:

       1. (i)

          the row corresponding to the term ‘P_i ’ is replaced by the following:

          P_i

          ‘engine power for the mode i [kW] calculated by adding to the measured power P_meas [kW] the power required to drive auxiliaries P_AUX [kW] determined in accordance with equation (6-8) of Annex VI (P_i = P_meas  + P_AUX ).’;

       2. (ii)

          the following row is added:

          N_mode

          ‘number of modes in applicable discrete-mode NRSC’;

    3. (c)

       equation (7-67) is replaced by the following:

       ‘

       $e_{\mathrm{PM}}=\frac{\sum _{i=1}^{N_{\mathrm{mode}}}\left(q_{m\mathrm{PM}i}\times {\mathrm{WF}}_i\right)}{\sum _{i=1}^{N_{\mathrm{mode}}}\left(P_i\times {\mathrm{WF}}_i\right)}$

       (7-67)

       ’;

    4. (d)

       the legend of equation (7-67) is amended as follows:

       1. (i)

          the row corresponding to the term ‘P_i ’ is replaced by the following:

          P_i

          ‘engine power for the mode i [kW] calculated by adding to the measured power P_meas [kW] the power required to drive auxiliaries P_AUX [kW] determined in accordance with equation (6-8) of Annex VI (P_i = P_meas  + P_AUX ).’;

       2. (ii)

          the following row is added:

          N_mode

          ‘number of modes in applicable discrete-mode NRSC’;

12. (12)

    in point 3.3.4, the first paragraph is replaced by the following:

    ‘For HC measurement, x _THC[THC-FID] shall be calculated by using the initial THC contamination concentration x _{THC[THC-FID]init} from point 7.3.1.3 of Annex VI by means of equation (7-83):’;

13. (13)

    in point 3.3.5, the last sentence is replaced by the following:

    ‘A certain flow-weighted mean concentration of an emission at the emission limit value might be already expected based on previous testing with similar engines or testing with similar equipment and instruments.’;

14. (14)

    point 3.5 is replaced by the following.

    ‘3.5.

    Measurement of gaseous emissions in raw exhaust gas’;

15. (15)

    in point 3.5.3, in point (c), equation (7-113) is replaced by the following:

    ‘

    ${ṅ}_{\mathrm{exh}}=\frac{{ṁ}_{\mathrm{fuel}}\times W_C\times \left(1+X_{H_2\mathrm{Oexhdry}}\right)}{M_c\times X_{\mathrm{Ccombdry}}}$

    (7-113)

    ’;

16. (16)

    point 3.6.1 is replaced by the following

    ‘3.6.1.

    Emission mass calculation and background correction

    The calculation of gaseous emissions mass m _gas [g/test] as a function of molar emissions flow rates shall be calculated as follows:

    1. (a)

       Continuous sampling, varying flow rate, shall be calculated by means of equation (7-106):

       $m_{\mathrm{gas}}=\frac{1}{f}\times M_{\mathrm{gas}}\times \sum _{i=1}^N{ṅ}_{\mathrm{exhi}}\times X_{\mathrm{gasi}}$

       [see equation (7-106)]

       Where:

       M _gas

    2. generic emission molar mass [g/mol]

    ṅ_exhi

    3. instantaneous exhaust gas molar flow rate on a wet basis [mol/s]

    x_gasi

    4. instantaneous generic gas molar concentration on a wet basis [mol/mol]

    f

    5. data sampling rate [Hz]

    N

    6. number of measurements [-]

17. (b)

    Continuous sampling, constant flow rate, shall be calculated by means of equation (7-107):

    $m_{\mathrm{gas}}=M_{\mathrm{gas}}\times {ṅ}_{\mathrm{exh}}\times {\bar{x}}_{\mathrm{gas}}\times \Delta t$

    [see equation (7-107)]

    Where:

    M _gas

18. generic emission molar mass [g/mol]

ṅ_exh

19. exhaust gas molar flow rate on a wet basis [mol/s]

${\bar{x}}_{\mathrm{gas}}$

20. mean gaseous emission molar fraction on a wet basis [mol/mol]

Δt

21. time duration of test interval