Document ID: chunk:federal_register_of_legislation:F2015L01230:reg:17
Version: federal_register_of_legislation:F2015L01230
Segment Type: reg
Provision Reference: reg 17
Character Range: 19597–21841

17  Emissions factor for a re‑routed gas quantity
  The emissions factor for flaring the re‑routed gas quantity in relation to a flare device, in tonnes CO2‑e per tonne flared, is worked out using the formula (equation 4):
where:
EFi means the emissions factor for flaring the re‑routed gas quantity in relation to flare device i, in tonnes CO2‑e per tonne flared.
s means the number of component gases present in the re‑routed gas quantity in relation to flare device i, not including carbon dioxide, worked out:
 (a) if, under section 34, the project proponent has chosen to use historical sampling data in relation to the reporting period—using that data; or
 (b) otherwise—in accordance with the monitoring requirements.
Note: Carbon dioxide in the gas quantity is accounted for by equation 5.
y means a component gas, other than carbon dioxide, that is present in the re‑routed gas quantity in relation to flare device i, identified:
 (a) if, under section 34, the project proponent has chosen to use historical sampling data in relation to the reporting period—using that data; or
 (b) otherwise—as a result of monitoring parameters s and molar fraction in accordance with the monitoring requirements.
moly,i% means the molar fraction of component y in the re‑routed gas quantity in relation to flare device i, in mol%, worked out:
 (a) if, under section 34, the project proponent has chosen to use historical sampling data in relation to the reporting period—using that data; or
 (b) otherwise—in accordance with the monitoring requirements.
mwy means the molecular weight of component y, in kilograms per kilomole, set out in the table in subsection 2.22(3) of the NGER (Measurement) Determination.
V means the volume of 1 kilomole of a gas at standard conditions, which is 23.6444 cubic metres.
dTOTAL,i means the density of the re‑routed gas quantity in relation to flare device i, in kilograms per cubic metre, worked out using equation 7.
fy means the number of carbon atoms in a molecule of component y, as set out in the table in subsection 2.22(3) of the NGER (Measurement) Determination.
OFg means the oxidation factor for gaseous fuels, and has the same value as in subsection 2.22(1) of the NGER (Measurement) Determination.