# Emission estimation calculators, booklet 2: chapter 5

## Gasoline Generator - Fuel Usage

Operation of a generator (reciprocating engine) with gasoline fuel combustion results in release of Criteria Air Contaminant (Part 4 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 = Volume of gasoline burned [cubic meters]
B = Heating value of gasoline [Giga Joules per cubic meter]Footnote*

Part 4 Criteria Air Contaminants (CAC) Releases
Substance Name Chemical Abstracts Service Registry Number (CAS RN)Footnote1 Emission Factor (EF)Footnote2 EF Units
Carbon Monoxide (CO)Footnote** 630-08-0 0.426x BFootnote Ɨ kilograms (kg)/cubic meters (m3)
Sulphur Dioxide (SO2)Footnote** 7446-09-5 0.0361 x B kg/m3
Oxides of Nitrogen (NOx), expressed as nitrogen dioxide (NO2)Footnote** 11104-93-1 0.7007 x B kg/m3
Total Particulate Matter (TPM)Footnote** Footnote*** 0.04299 x B kg/m3
Particulate Matter less than or equal to 10 micrometers (µm) (PM10)Footnote** Footnote*** 0.04299 x B kg/m3
Particulate Matter less than or equal to 2.5 µm (PM2.5)Footnote** Footnote*** 0.04299 x B kg/m3

### 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.

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)