OpenLegislation

Division 3.8.2.2.2

United Kingdom

Original text. Later amendments are not shown.

For the multiple-filter method by means of equation (7-134):

F1 e PM = ∑ i = 1 N mode ṁ PM i × WF i ∑ i = 1 N mode P i × WF i (7-134)

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 [-]

    • ṁ PM i

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

    • F2N mode

  • number of modes in applicable discrete-mode NRSC

    • For the single-filter method, the effective weighting factor, WF eff i , for each mode shall be calculated by means of equation (7-135):

    WF eff i = m smpldexh i × ṁ eqdexhwet – m smpldex × ṁ eqdexhwet i (7-135)

    Where:

    m smpldexh i

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

    • m smpldexh

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

    • ṁ eqdexhwet i

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

    • ṁ eqdexhwet –

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

    • 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).