# Emission estimation calculators, booklet 2: chapter 1

## Diesel Fuel Generator - Hours of Operation

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

B = Hours of operation [hours]
C = Operating horsepower [hp]

Calculate the activity rate by the following formula:

A = B x C

Then 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 2.435E-06 kg/hp - hour
Acrolein 107-08-8 1A 1.469E-07 kg/hp - hour
Anthracene 120-12-7 1A 5.938E-09 kg/hp - hour
Benzene 71-43-2 1A 2.962E-06 kg/hp - hour
1,3-Butadiene 106-99-0 1A 6.207E-08 kg/hp - hour
Formaldehyde 50-00-0 1A 3.747E-06 kg/hp - hour
Naphthalene 91-20-3 1A 2.693E-07 kg/hp - hour
Propylene 115-07-1 1A 8.192E-06 kg/hp - hour
Toluene 108-88-3 1A 1.299E-06 kg/hp - hour
Isomers of Xylene 1330-20-7 1A 9.049E-07 kg/hp - hour
Mercury 7439-97-6 1B 9.570E-10 kg/hp - hour
Part 2 Releases
Substance Name Chemical Abstracts Service Registry Number (CAS RN)Footnote1.1 Emission Factor (EF)Footnote2 EF Units
Acenaphthene 83-32-9 2.254E-09 kg/hp - hour
Acenaphthylene 208-96-8 8.033E-09 kg/hp - hour
Benzo (a) anthracene 56-55-3 5.334E-09 kg/hp - hour
Benzo (a) phenanthrene 218-01-9 1.121E-09 kg/hp - hour
Benzo (a) pyrene 50-32-8 2.985E-10 kg/hp - hour
Benzo (b) fluoranthene 205-99-2 1.573E-10 kg/hp - hour
Benzo (g,h,i) perylene 191-24-2 7.763E-10 kg/hp - hour
Benzo (k) fluoranthene 207-08-9 2.461E-10 kg/hp - hour
Dibenzo (a,h) anthracene 53-70-3 9.256E-10 kg/hp - hour
Fluoranthene 206-44-0 2.416E-08 kg/hp - hour
Fluorene 86-73-7 9.271E-08 kg/hp - hour
Indeno(1,2,3-c,d) pyrene 193-39-5 5.953E-10 kg/hp - hour
Phenanthrene 85-01-8 9.335E-08 kg/hp - hour
Pyrene 129-00-0 1.518E-08 kg/hp - hour
Part 4 Criteria Air Contaminants (CAC) Releases
Substance Name Chemical Abstracts Service Registry Number (CAS RN)Footnote1.1 Emission Factor (EF)Footnote2 EF Units
Carbon Monoxide (CO) 630-08-0 3.029E-03 kg/hp - hour
Sulphur Dioxide (SO2) 7446-09-5 9.294E-04 kg/hp - hour
Oxides of Nitrogen (NOx), expressed as nitrogen dioxide (NO2) 11104-93-1 1.405E-02 kg/hp - hour
Volatile Organic Compounds (VOCs) Footnote* 1.120E-03 kg/hp - hour
Total Particulate Matter (TPM) Footnote* 9.974E-04 kg/hp - hour
Particulate Matter less than or equal to 10 micrometers (µm) (PM10) Footnote* 9.974E-04 kg/hp - hour
Particulate Matter less than or equal to 2.5 µm (PM2.5) Footnote* 9.974E-04 kg/hp - hour
Part 5 Releases
Substance Name Chemical Abstracts Service Registry Number (CAS RN)Footnote1.1 Emission Factor (EF)Footnote2 EF Units
Benzene 71-43-2 2.962E-06 kg/hp - hour
1,3-Butadiene 106-99-0 6.207E-08 kg/hp - hour
Formaldehyde 50-00-0 3.747E-06 kg/hp - hour
Propylene 115-07-1 8.192E-06 kg/hp - hour
Toluene 108-88-3 1.299E-06 kg/hp - hour
Isomers of Xylene 1330-20-7 9.049E-07 kg/hp - hour

### 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)

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