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Division 2.4.2.2 Discrete-mode NRSC

United Kingdom

Original text. Later amendments are not shown.

The particulate specific emission e PM [g/kWh] shall be calculated by means of equations (7-66) or (7-67):

  1. (a)

    For the single-filter method

    F1 e PM = q m PM ∑ i = 1 N mode P i × WF i (7-66)

    where:

    P i

  2. 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 )

    3. WFi

  3. weighting factor for the mode i [-]

    4. qm PM

  4. particulate mass flow rate [g/h]

    5. F2N mode

  5. number of modes in applicable discrete-mode NRSC

  • (b)

    For the multiple-filter method

    e PM = ∑ i = 1 N mode q m PM i × WF i ∑ i = 1 N mode P i × WF i (7-67)

    Where:

    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 )

    • WFi

  • weighting factor for the mode i [-]

    • qm PM i

  • particulate mass flow rate at mode i [g/h]

    • N mode

  • number of modes in applicable discrete-mode NRSC

    • For the single-filter method, the effective weighting factor, WF e i , for each mode shall be calculated by means of equation (7-68):

    WF e i = m sep i × q m edf – m sep × q m edf i – (7-68)

    Where:

    m sep i

  • mass of the diluted exhaust gas sample passed through the particulate sampling filters at mode i [kg]

    • q m edf –

  • average equivalent diluted exhaust gas mass flow rate [kg/s]

    • qm edf i

  • equivalent diluted exhaust gas mass flow rate at mode i [kg/s]

    • m sep

  • mass of the diluted exhaust gas sample passed through the particulate sampling filters [kg]

    • The value of the effective weighting factors shall be within 0,005 (absolute value) of the weighting factors listed in Appendix 1 of Annex XVII.

    Annotations

    Textual amendments

    F1

    Substituted by Commission Delegated Regulation (EU) 2018/989 of 18 May 2018 amending and correcting Delegated Regulation (EU) 2017/654 supplementing Regulation (EU) 2016/1628 of the European Parliament and of the Council with regard to technical and general requirements relating to emission limits and type-approval for internal combustion engines for non-road mobile machinery (Text with EEA relevance).

    F2

    Inserted by Commission Delegated Regulation (EU) 2018/989 of 18 May 2018 amending and correcting Delegated Regulation (EU) 2017/654 supplementing Regulation (EU) 2016/1628 of the European Parliament and of the Council with regard to technical and general requirements relating to emission limits and type-approval for internal combustion engines for non-road mobile machinery (Text with EEA relevance).