How to calculate the carbon emission of 100 kilometers of vehicles

Actual calculation oneFuel consumption per 100 kmMethod: x 100 = 50 600, x is the actual fuel consumption of 100 kilometers we seek, and the right side of the equation is the fuel consumption of the vehicle for 600 kilometers 50L. Solve the equation, x = 50 100 600.

Answer: x

So the actual fuel consumption of the car is about 100 kilometers.

Fuel consumption per 100 km

It is the manufacturer in the objective environment, with the dynamometer installed in the vehicle chassis to measure the value into the speed parameter, and then specify the speed to drive, calculate the theoretical experiment of the model 100 kilometers fuel consumption data, because most vehicles in 90 kilometers close to the economic speed, so most of the external announcement of the theoretical fuel consumption is usually 90 kilometers of 100 kilometers of fuel consumption. (The exhaust volume is analyzed for carbon elements in the exhaust gas by exhaust gas analyzer and carbon balance method.)

content to judge).

1) Use the single mileage calculation table on the car to clear the single mileage whenever the fuel tank light is on and alarm, and then go to refuel. (2) Record the mileage of a single odometer when driving to the next fuel tank light alarm, and divide the amount of fuel by this mileage to obtain the approximate fuel consumption of 100 kilometers.

Common vehicle carbon emissions:

1) Annual travel carbon emissions of automobiles: .

2) Annual travel carbon emissions of automobiles:

Carbon emissions, the corresponding technical term is carbon flux (including both carbon emissions and carbon sequestration). In addition to carbon emissions, carbon absorption is also discussed in this answer. This is because if you are an emitter, if you also participate in emission reduction projects such as afforestation, you can also deduct carbon emission credits.

Equally important is the measurement of carbon absorption.

There are currently two mainstream methods for calculating carbon fluxes, one is called "bottom-up" and the other is called "top-down".

The "bottom-up" approach divides carbon fluxes into two main parts: anthropogenic and ecosystem.

Human activities include fossil fuel combustion, etc., covering vehicle exhaust, etc., which are mainly calculated through statistical data, that is, the amount of carbon emitted is calculated based on the fuel consumption of a region and the efficiency of various fuel combustion. Specifically, according to the regional oil, coal, and natural gas ...... of the National Bureau of Statisticscombined with empirical formulas, the corresponding emissions are calculated. The other answers are mainly in detail about the calculation process in this part.

This is actually the most widely used form of statistics.

Ecosystem activities are one of the research contents of ecology, and in simple terms, the impact of ecosystems on atmospheric carbon includes two parts: 1) carbon sequestration by photosynthesis, which is called gross primary productivity (GPP); 2) Ecosystem respiration (RE), which includes the respiration of plants themselves, as well as the respiration of animals after eating plants. The subtraction of these two components is the net ecosystem exchange (NEE = GPP - RE), which is the carbon flux of this part of the ecosystem we are interested in.

In order to calculate NEE, it is usually split into GPP and RE separately, both of which are related to climate factors such as solar radiation, precipitation, humidity, and temperature, as well as surface vegetation cover. This relationship, combined with the corresponding data, can be calculated accordingly.

This is a complex research topic.

In addition to these two parts, there are also fire events (such as forest fires, straw burning, etc., which are generally found through local chronicles or satellite imagery), marine absorption and discharge, aircraft emissions, cruise ship emissions, and ......These emissions are relatively small or have low uncertainty (oceans).

In short, the "bottom-up" method is to break down carbon emissions into several components, and then count them according to their respective characteristics, and finally sum them to obtain the total carbon emissions.

Obviously, there is a large error in such calculations, so a new method has recently been developed called "top-down". It is so called because this method backcounts surface carbon emissions based on observations of atmospheric carbon concentration.

For example, if you know the atmospheric carbon concentration of a region at each moment, you can know how much the carbon concentration of that area has increased or decreased over a period of time, and the amount of carbon change over this period is made up of two parts: 1) atmospheric transport, which is blown by the wind and blown away, and 2) local carbon emissions. The first part can be calculated and done through continuous observation of atmospheric wind speed and wind direction.

Actual energy usage, such as the description on your fuel bill and utility bill, can be multiplied by a corresponding "carbon intensity factor" to arrive at an exact figure of your or your household's CO2 emissions. Here are some typical coefficients:

Fuel Carbon intensity factor.

Natural gas kg CO2 kWh.

LPG kg CO2 kWh.

Civilian fuel oil kg CO2 kWh.

Coal kg CO2 kWh.

Wood (sustainable) 1 kg CO2 kWh gasoline kg CO2 liters.

Diesel kilogram CO2 liters.

The carbon intensity factor for electricity is based on the fuel required to generate electricity and convert it. Here are some typical coefficients:

Fuel Carbon intensity factor.

Coal kg CO2 kWh.

Natural gas kg CO2 kWh.

Nuclear energy 2 kg CO2 kWh.

Renewable energy: 3 kg CO2 kWh.

To know when carbon emissions peak, one has to calculate the amount of carbon dioxide emitted. How are carbon emissions calculated in carbon peak and carbon neutrality?

Household Carbon Emissions Data:

CO2 emissions can be calculated by multiplying the actual energy use, such as fuel bills, utility bills, and descriptions on utility bills, by a corresponding "carbon intensity factor" to derive the carbon emissions data in the household.

In household electricity, CO2 emissions are equal to the number of degrees of electricity consumed multiplied. In other words, with 100 kilowatt-hours of electricity, it is equivalent to emitting about kilograms of carbon dioxide.

In domestic natural gas, CO2 emissions (kg) are equal to the amount of natural gas used multiplied.

When traveling, driving a private car, CO2 emissions (kg) are equal to fuel consumption multiplied by the number of vehicles.

Calculation of carbon emissions in the production of enterprises:

Total emissions = (direct combustion + production process emissions) + purchased thermal power emissions.

Among them: direct combustion is a variety of fuels (coal, oil, natural gas, diesel. emissions;

The emission of the production process is some special chemical reaction in the production process, which leads to the generation of carbon dioxide and methane and other greenhouse gases, and the leakage of some insulating agents such as carbon dioxide and sulfur hexafluoride should also be calculated;

Purchased thermal power is the electricity and heat purchased from the grid and collective heating, which is converted into carbon dioxide produced by combustion.

Carbon emissions are an umbrella term or abbreviation for greenhouse gas emissions. The most important component of greenhouse gases is carbon dioxide (CO2), so people understand "carbon emissions" as "carbon dioxide emissions".

Any activity has the potential to cause carbon emissions, and all kinds of fuel oil, gas, paraffin, coal, and natural gas will produce a large amount of carbon dioxide during use, and urban operations, people's daily lives, and transportation (planes, trains, cars, etc.) will also emit a lot of carbon dioxide. Buying a piece of clothing, consuming a bottle of water, or even ordering a takeout can produce emissions during production and transportation. All combustion processes (man-made, natural) produce carbon dioxide, such as simple cooking over a fire; Carbon dioxide is produced in the process of decomposition, fermentation, decay, and deterioration of organic matter.

In fact, carbon emissions are closely related to our daily food, clothing, housing and transportation.

As the concept of "low carbon" begins to enter people's daily life at a high frequency, everyone is very concerned about the amount of carbon emissions, but they know very vaguely, and they don't know how to calculate it

The amount of carbon dioxide emitted by consuming 1t of standard coal is;

CO2 emissions of household electricity (kg) = electricity consumption (kWh) x 0785;

CO2 emissions from start-up (kg) = fuel consumption (l);

CO2 emissions from train travel (kg) = distance traveled (km) ;

Carbon dioxide emissions from domestic natural gas (kg) = natural gas usage (m3);

Carbon dioxide emissions from household tap water (kg) = tap water use (m3);

CO2 emissions from meat (kg) = amount of meat (kg).

For example, a fir tree can absorb 111kg of carbon dioxide in 30 years, with an average annual absorption of about 4kg, then roughly calculate that the following consumption needs to be compensated by planting a few trees:

2000m = 278kg carbon emissions = 3 trees for air travel;

Consumption of 100kw·h electricity = carbon emissions = 1 tree;

Consumption of 100L of gasoline = 270kg of carbon emissions = 3 trees.

There are two main ways to measure carbon emissions: one is based on accounting and the other is based on continuous monitoring. At present, China only uses accounting-based methods to collect and monitor emissions.

The continuous monitoring method can avoid data distortion caused by human factors in the accounting process. Recently, the Ministry of Ecology and Environment has selected individual thermal power units to pilot the continuous monitoring method. In the future, it is possible that the accounting data will be validated by means of continuous monitoring.

Motor vehicle exhaust contains a large amount of carbon dioxide CO2, which is one of the main substances of the greenhouse effect. How do you calculate carbon emissions? There is a formula to calculate, for example, the formula for carbon emissions within 200 kilometers by plane is "kilometers; The formula for a range between 200 km and 1000 km by plane is "55+ kilometers - 200)"; If the flight range is more than 1000 kilometers by air, the formula is "kilometers".

Carbon emissions while driving are measured in liters. According to statistics, the annual emissions of each person are about tons.

Formulas and methods of how to calculate carbon emissions: 1 kilowatt-hour of electricity is about carbon dioxide 1 ton of water is about carbon dioxide 1 liter of gasoline is about carbon dioxide 1 kg of pork is about carbon dioxide 1 kg of beef is about carbon dioxide 1 piece of A4 paper is about carbon dioxide 1 plastic bag is about carbon dioxide.

There are currently two ways to calculate carbon fluxes: bottom-up, bottom-up, and so on. Moreover, human activities and ecosystem activities will affect carbon emissions.

Estimating CO2 emissions. The use of energy is divided into heat needs (cooling, heating and hot water), lighting needs and electricity applications, and the use of energy can produce different results for different users, such as the choice of special materials (insulators), the behavior of users (getting into the habit of turning off lights and power at hand), and the use of new technologies (such as the use of solar water heaters).

Carbon emissions from the use of electricity are estimated using the average grid carbon generation intensity factor for each country. The transport portion of the carbon footprint is estimated based on the fuel required for different types of vehicles and mileage. (per passenger flying by public transport and air).

How can I know the most accurate CO2 emissions?

You can multiply your actual energy usage, such as the description on your fuel bill or utility bill, by a corresponding "carbon intensity factor" to get an exact figure of your or your household's CO2 emissions. Here are some typical coefficients:

Fuel Carbon intensity factor.

Natural gas kg CO2 kWh.

LPG kg CO2 kWh.

Civilian fuel oil kg CO2 kWh.

Coal kg CO2 kWh.

Wood (sustainable) 1 kg CO2 kWh Gasoline kg CO2 Diesel kg CO2 litres The carbon intensity factor for electricity is based on the fuel required to generate electricity and convert it. Here are some typical coefficients:

Fuel Carbon intensity factor.

Coal kg CO2 kWh.

Natural gas: kg CO2 kWh, nuclear 2 kg CO2 kWh, renewable energy: 3 kg CO2 kWh.

At present, there are three main ways to calculate carbon emissions: emission factor method, mass balance method, and measurement method.

Emission Factor Method (based on calculations):

Features: The emission factor method is the most widely applicable and widely used carbon accounting method.

Calculation formula: Greenhouse Gas (GHG) Emissions = Activity Data (AD) Emission Factor (EF) Mass Balance Method (based on calculations):

Features: The share of new chemical substances consumed to meet the capacity of new equipment or to replace the removal of gases can be calculated based on the new chemical substances and equipment used in the production and life of the country each year.

Calculation formula: For carbon dioxide, under the carbon mass balance method, carbon emissions are obtained by subtracting the carbon output of non-carbon dioxide from the input carbon content: carbon dioxide (CO2) emissions = (raw material input raw material carbon content - product output product carbon content - waste output waste carbon content) 44 12.

where is the conversion coefficient of carbon to CO2 (i.e., the relative atomic mass of CO2 C).

Measured method (based on measurements):

The measurement method is based on the measured basic data of emission sources and summarizes the relevant carbon emissions. There are two more measured methods, i.e., on-site measurements and off-site measurements. On-site measurement is generally equipped with a carbon emission monitoring module in the continuous flue gas emission monitoring system (CEMS), and its emissions are directly measured through continuous monitoring of concentration and flow rate; Off-site measurements are carried out by collecting samples and sending them to the relevant monitoring departments, using specialized testing equipment and techniques for quantitative analysis.

Compared with the two, the accuracy of on-site measurement is significantly higher than that of off-site measurement due to the adsorption reflection and dissociation of the sampled gas during off-site measurement.