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Emission Estimation Calculators - Booklet 1

Feed Manufacturing

The substances of concern released from the production of animal feeds are Criteria Air Contaminants (CAC).

Download spreadsheet calculator: Feed Manufacturing [xls 74 kb] (4 Feb 2009)

Suggested estimation methodology: Emission Factor

The general equation for emissions estimation is:

E = A x EF

where:

  • E = emissions
  • A = activity rate
  • EF = emission factor

Input Data

The activity rate (A) is the number of tonnes of grain received or processed. There are individual emission factors for Total Particulate Matter (TPM), Particulate matter with a diameter less than or equal to 10 micrometres (µm) (PM10) and Particulate matter with a diameter less than or equal to 2.5 micrometres (PM2.5) for each of the processes. The total emissions for each substance will be the sum of the each of the emissions for each process.

Part 4 Substance Releases

Total Particulate Matter (TPM)Footnote*
ProcessEmission Factor (EF)Footnote1EF Units
Grain Receiving0.0085kilograms (kg)/tonnes of grain processed
Shipping0.00165kg/tonnes of grain processed
Handling2.75kg/tonnes of grain received
Grain Cleaning (Single Cyclone)Footnote**0.0375kg/tonnes of grain processed
Pellet Cooler (Single Cyclone)Footnote**0.18kg/tonnes of grain processed
Grain Milling: Hammermill (Single Cyclone)Footnote**0.0335kg/tonnes of grain processed
Grain Milling: Flaker (Single Cyclone)Footnote**0.075kg/tonnes of grain processed
Grain Milling: Grain Cracker (Single Cyclone)Footnote**0.012kg/tonnes of grain processed
Grinding0.03kg/tonnes of grain received
Particulate Matter less than or equal to 10 µm (PM10)Footnote*
ProcessEmission Factor (EF)Footnote1EF Units
Grain Receiving0.00125kg/tonnes of grain processed
Shipping0.0004kg/tonnes of grain processed
Handling0.6875kg/tonnes of grain received
Grain Cleaning (Single Cyclone)Footnote**0.0095kg/tonnes of grain processed
Pellet Cooler (Single Cyclone)Footnote**0.09kg/tonnes of grain processed
Grain Milling: Hammermill (Single Cyclone)Footnote**0.017kg/tonnes of grain processed
Grain Milling: Flaker (Single Cyclone)Footnote**0.0375kg/tonnes of grain processed
Grain Milling: Grain Cracker (Single Cyclone)Footnote**0.006kg/tonnes of grain processed
Grinding0.03kg/tonnes of grain received
Particulate Matter less than or equal to 2.5 µm (PM2.5)Footnote*
ProcessEmission Factor (EF)Footnote1EF Units
Grain Receiving0.0002kg/tonnes of grain processed
Shipping0.0001kg/tonnes of grain processed
Handling0.1169kg/tonnes of grain received
Grain Cleaning (Single Cyclone)Footnote**0.0016kg/tonnes of grain processed
Pellet Cooler (Single Cyclone)Footnote**0.0153kg/tonnes of grain processed
Grain Milling: Hammermill (Single Cyclone)Footnote**0.0029kg/tonnes of grain processed
Grain Milling: Flaker (Single Cyclone)Footnote**0.0064kg/tonnes of grain processed
Grain Milling: Grain Cracker (Single Cyclone)Footnote**0.001kg/tonnes of grain processed
Grinding0.0051kg/tonneof grain received

Note on Emissions Factors

The default emission factors are used in the table above, however if you have a site specific emission factor you would prefer to use you may enter it in the emission factor column. If you choose to insert your own emission factor ensure that the units have been converted accordingly.

Except where noted, the emission factors used in this spreadsheet are based on uncontrolled emissions. If you are using an emission control device you will have to adjust the emissions calculated by this spreadsheet according to the following formula:

Controlled Emissions = Uncontrolled emission x ((100 - control efficiency)/100)

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