# Emission estimation calculators, booklet 2: chapter 2

## Diesel Fuel Generator - Fuel Usage

Operation of a generator (reciprocating engine) with diesel fuel combustion (up to 600 horsepower) results in release of Part 1, 2, 4 and 5 Substances.

### Suggested estimation methodology: Emissions Factor

The general equation for emissions estimation is:

E = A x EF

where:

• E = emissions
• A = activity Rate
• EF = emissions factor

#### Input Data

A = Amount of diesel burned [cubic meters (m3) or Liters (L)]
B = Heating value of natural gas [Giga Joules (GJ)/m3]Footnote*

If the amount of diesel in known in liters you must convert it to cubic meters by the following formula:

A[m3] = A[L]/1000

Finally calculate the emissions for each applicable substance by using the appropriate emissions factors given in the tables below.

### Substance Releases

Part 1 Releases
Substance Name Chemical Abstracts Service Registry Number (CAS RN)Footnote1.1 Part Emission Factor (EF)Footnote2 EF Units
Acetaldehyde 75-07-0 1A 1.259E-02 kg/m3
Acrolein 107-08-8 1A 7.593E-04 kg/m3
Anthracene 120-12-7 1A 3.070E-05 kg/m3
Benzene 71-43-2 1A 1.532E-02 kg/m3
Formaldehyde 50-00-0 1A 1.937E-02 kg/m3
Naphthalene 91-20-3 1A 1.392E-03 kg/m3
Propylene 115-07-1 1A 4.235E-02 kg/m3
Toluene 108-88-3 1A 6.714E-03 kg/m3
Isomers of Xylene 1330-20-7 1A 4.679E-03 kg/m3
Mercury 7439-97-6 1B 4.948E-06 kg/m3
Part 2 Releases
Substance Name Chemical Abstracts Service Registry Number (CAS RN)Footnote1.1 Emission Factor (EF)Footnote2 EF Units
Acenaphthene 83-32-9 1.166E-05 kg/m3
Acenaphthylene 208-96-8 4.153E-05 kg/m3
Benzo (a) anthracene 56-55-3 2.758E-05 kg/m3
Benzo (a) phenanthrene 218-01-9 5.795E-06 kg/m3
Benzo (a) pyrene 50-32-8 1.543E-06 kg/m3
Benzo (b) fluoranthene 205-99-2 8.134E-07 kg/m3
Benzo (g,h,i) perylene 191-24-2 4.014E-06 kg/m3
Benzo (k) fluoranthene 207-08-9 1.272E-06 kg/m3
Dibenzo (a,h) anthracene 53-70-3 4.785E-06 kg/m3
Fluoranthene 206-44-0 1.249E-04 kg/m3
Fluorene 86-73-7 4.794E-04 kg/m3
Indeno(1,2,3-c,d) pyrene 193-39-5 3.078E-06 kg/m3
Phenanthrene 85-01-8 4.826E-04 kg/m3
Pyrene 129-00-0 7.847E-05 kg/m3
Part 4 Criteria Air Contaminants (CAC) Releases
Substance Name Chemical Abstracts Service Registry Number (CAS RN)Footnote1.1 Emission Factor (EF)Footnote2Footnote** EF Units
Carbon Monoxide (CO) 630-08-0 0.4084 x B kg/m3
Sulphur Dioxide (SO2) 7446-09-5 0.1247 x B kg/m3
Oxides of Nitrogen (NOx), expressed as nitrogen dioxide (NO2) 11104-93-1 1.8960 x B kg/m3
Volatile Organic Compounds (VOCs) Footnote*** 0.1548 x B kg/m3
Total Particulate Matter (TPM) Footnote*** 0.1333 x B kg/m3
Particulate Matter less than or equal to 10 micrometers (µm) (PM10) Footnote*** 0.1333 x B kg/m3
Particulate Matter less than or equal to 2.5 µm (PM2.5) Footnote*** 0.1333 x B kg/m3
Part 5 Releases
Substance Name Chemical Abstracts Service Registry Number (CAS RN)Footnote1.1 Emission Factor (EF)Footnote2Footnote** EF Units
Benzene 71-43-2 4.011E-04 x B kg/m3
1,3-Butadiene 106-99-0 8.405E-06 x B kg/m3
Formaldehyde 50-00-0 5.073E-04 x B kg/m3
Propylene 115-07-1 1.109E-03 x B kg/m3
Toluene 108-88-3 1.758E-04 x B kg/m3
Isomers of Xylene 1330-20-7 1.225E-04 x B kg/m3

#### Note on Emissions Factors

National Pollutant Release Inventory (NPRI) Basis of Estimate Code = E2 (Published Emission 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.

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)