What is the meaning of emission factor?

About Emissions Factors

An emissions factor is a representative value that attempts to relate the quantity of a pollutant released to the atmosphere with an activity associated with the release of that pollutant.

How is emission factor calculated?

The general equation for emission estimation is: E = A x EF x (1-ER/100) where: E = emissions, A = activity rate, EF = emission factor, and ER = overall emission reduction efficiency, %.

What is the carbon emission factor?

Emission factors (EF's) are values that can be applied to anything that uses fuels or raw materials as a result of consumption or usage by an individual or organisation that results in the emission of Greenhouse Gases (GHG's). EF's are most typically measured as mass per unit of consumption e.g. Tonnes per MWh.

What is default emission factor?

The 'CoM Default Emission Factors' collection consists of emission factors and coefficients provided to the Covenant of Mayors inititiave for the calculation of local Greenhouse Gas (GHG) emission inventories (in CO2 and CO2 equivalent), using standard (e.g. based on IPCC factors) or LCA (Life cycle assessment) ...

How do you calculate the emission factor of CO2?

Carbon dioxide emissions per barrel of crude oil are determined by multiplying heat content times the carbon coefficient times the fraction oxidized times the ratio of the molecular weight of carbon dioxide to that of carbon (44/12).

Lecture 2C: Emission Factor

How do you measure emissions?

Emissions are calculated most efficiently by simply measuring the amount of fuel used which automatically takes into account variability in both the vehicle and driving skill.

How much carbon is in a Litre of petrol?

CO2 from fuel use:

The CO2 emissions from petrol and diesel are around 2.4 kg per litre [1], i.e. 10.9 kg per gallon (since 1 gallon is 4.546 litres).

How much CO2 is in a Litre of diesel?

Diesel engines produce 2.7 kg of CO2 per litre of diesel fuel consumed.

What is emission factor IPCC?

The Emission Factor Database (EFDB) is a project supported by the National Greenhouse Gas Inventories Programme (NGGIP), which is managed by the IPCC Task Force on National Greenhouse Gas Inventories (TFI).

What is oxidation factor?

Oxidation factors measure the percentage of carbon that is actually oxidized when combustion occurs. The oxidation factor is used to calculate the amount of the fuel that is contributing to carbon dioxide emissions. Oxidation factors vary by type of fuel and by technology.

What is the weight of diesel?

The weight of a gallon of diesel is about 7 pounds, roughly. Diesel weighs a little less than 7 pounds per gallon in the US (and a little more than 7 pounds per gallon in Canada), but let's go with 7 pounds per gallon to make it an easy, round number.

What is the weight of 1 Litre petrol?

You might be surprised to know that a litre of unleaded petroleum gasoline used in most passenger cars creates 2.2 kg of carbon dioxide (CO2). “But wait,” you say, “A litre of petrol only weighs 0.72 kg!

What is diesel chemical formula?

Diesel is composed of about 75% saturated hydrocarbons (primarily paraffins including n, iso, and cycloparaffins), and 25% aromatic hydrocarbons (including naphthalenes and alkylbenzenes). The average chemical formula for common diesel fuel is C12H23, ranging from approx. C10H20 to C15H28.

How much is 1kg of CO2?

This means that a quantity of CO2 can be expressed in terms of the amount of carbon it contains by multiplying the amount of CO2 by 0.27 (12/44). E.g. 1kg of CO2 can be expressed as 0.27kg of carbon, as this is the amount of carbon in the CO2.

How do you calculate carbon?

How To Calculate Your Carbon Footprint

1. Multiply your monthly electric bill by 105.
2. Multiply your monthly gas bill by 105.
3. Multiply your monthly oil bill by 113.
4. Multiply your total yearly mileage on your car by .79.
5. Multiply the number of flights you've taken in the past year (4 hours or less) by 1,100.

How much CO2 is produced per kg of petrol?

What do I need to know? Burning 1 L of gasoline produces approximately 2.3 kg of CO2.

What is CO2 intensity?

Carbon dioxide emissions intensity is defined as carbon dioxide emissions per GDP. Energy intensity, denoted as energy consumed per GDP, captures the technical efficiency associated with the utilization of energy and production processes.

How do I calculate CO2 emissions from kWh?

I.C. Estimation method used in the tool

The emission factor-based methodology estimates GHG emissions by multiplying a level of activity data (e.g., kWh of electricity consumed by a facility) by an emission factor (e.g., grams of CO2 per kWh).

How much is CO2 per kWh?

In 2020, total U.S. electricity generation by the electric power industry of 4.01 trillion kilowatthours (kWh) from all energy sources resulted in the emission of 1.55 billion metric tons—1.71 billion short tons—of carbon dioxide (CO₂). This equaled about 0.85 pounds of CO₂ emissions per kWh.

Why is it important to measure emissions?

Measurements of emissions can be used to understand the relative importance of a given source compared to other sources and in developing emissions inventories. Government or industry personnel use emissions measurements to assess the performance of control strategies.

How is CO2 measured?

Carbon Dioxide (CO2) is measured with a gas sensor specifically made to measure the concentration of carbon dioxide (CO2) in the air. There are three main types of Carbon Dioxide (CO2) sensors: Electrochemical sensors, Non-Dispersive Infrared (NDIR) Sensors, and Metal Oxide Semiconductor (MOS) Sensors.

How is CO2 reduction measured?

The CO2 reduction amount was calculated by excluding the sum of project CO2 emissions and residual amount from the baseline CO2 emissions amount (Equation (8) and Table 8).

What is the density of diesel?

The density of petroleum diesel is about 0.85 kg/l – about 15–20% higher than the density of gasoline, which has a density of approximately 0.70–0.75 kg/l.

How many km is a litre of petrol?

The actual formula to get km per litre is 100 divided by 8 = 12.5, meaning that your car will give you 12.5 km on one litre.