Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:5:p1
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 5 (pt 1/36)
Character Range: 411529–417659

5                0,033333       1                              0,004145                                0,004828
~               ~               ~                             ~                                      ~
 24              0,160000       1                              0,067877                                0,077876
 25              0,166667       1                              0,072816                                0,083476
 26              0,173333       1                              0,077874                                0,089205
 27              0,180000       1                              0,083047                                0,095056
 28              0,186667       1                              0,088331                                0,101024
 29              0,193333       1                              0,093719                                0,107102
 30              0,200000       1                              0,099208                                0,113286
 31              0,206667       1                              0,104794                                0,119570
 32              0,213333       1                              0,110471                                0,125949
 33              0,220000       1                              0,116236                                0,132418
 34              0,226667       1                              0,122085                                0,138972
 35              0,233333       1                              0,128013                                0,145605
 36              0,240000       1                              0,134016                                0,152314
 37              0,246667       1                              0,140091                                0,159094
~               ~               ~                             ~                                      ~
 175             1,166667       1                              0,862416                                0,895701
 176             1,173333       1                              0,864968                                0,897941
 177             1,180000       1                              0,867484                                0,900145
 178             1,186667       1                              0,869964                                0,902312
 179             1,193333       1                              0,872410                                0,904445
 180             1,200000       1                              0,874821                                0,906542
 181             1,206667       1                              0,877197                                0,908605
 182             1,213333       1                              0,879540                                0,910633
 183             1,220000       1                              0,881849                                0,912628
                                                                      Filtered output signal Yi [-]
   Index i [-]      Time [s]        Step input signal Si [-]
  1. Iteration    2. Iteration
 184             1,226667       1                              0,884125                                0,914589
 185             1,233333       1                              0,886367                                0,916517
 186             1,240000       1                              0,888577                                0,918412
 187             1,246667       1                              0,890755                                0,920276
 188             1,253333       1                              0,892900                                0,922107
 189             1,260000       1                              0,895014                                0,923907
 190             1,266667       1                              0,897096                                0,925676
 191             1,273333       1                              0,899147                                0,927414
 192             1,280000       1                              0,901168                                0,929121
 193             1,286667       1                              0,903158                                0,930799
 194             1,293333       1                              0,905117                                0,932448
 195             1,300000       1                              0,907047                                0,934067
~               ~               ~                             ~                                      ~

2.3.                            Calculation of the smoke values

              In the scheme below the general procedure of determining the final smoke value is presented.

              In Figure b, the traces of the measured raw opacity signal, and of the unfiltered and filtered light absorption coefficients (k-value) of the first load step of an ELR-Test are shown, and the maximum value Ymax1,A (peak) of the filtered k trace is indicated. Correspondingly, Table C contains the numerical values of index i, time (sampling rate of 150 Hz), raw opacity, unfiltered k and filtered k. Filtering was conducted using the constants of the Bessel algorithm designed in Section 2.2 of this Annex. Due to the large amount of data, only those sections of the smoke trace around the beginning and the peak are tabled.

        Figure b

        Traces of measured opacity N, of unfiltered smoke k and of filtered smoke k

              The peak value (i = 272) is calculated assuming the following data of Table C. All other individual smoke values are calculated in the same way. For starting the algorithm, S−1, S−2, Y−1 and Y−2 are set to zero.

  LA (m)         0,430
  Index i        272
  N ( %)         16,783
  S271 (m-1)     0,427392
  S270 (m-1)     0,427532
  Y271 (m-1)     0,542383
  Y270 (m-1)     0,542337

              Calculation of the k-value (Annex III, Appendix 1, Section 6.3.1):
              This value corresponds to S272 in the following equation.

              Calculation of Bessel averaged smoke (Annex III, Appendix 1, Section 6.3.2):

              In the