# Diesel Emission Rate Caculation (soot amount)

• Su Solberg
In summary: Your Name]In summary, the conversation discussed the calculation of soot content in exhaust gas based on the Euro 4 emission standard for PM emission in HD diesel engines. The calculation involves converting the exhaust flow from cubic feet per minute to liters per minute and then multiplying it by the PM emission rate. The resulting value is 0.0023 mg/L.
Su Solberg
Hey every one.
I have problem in caculating the soot content in (gram of soot)/(1 liter of exhaust gas).

Euor 4 emission standard of PM emission for HD diesel Engine is 0.02 g/kwh (from wikipedia)

So, If I have an engine rated 200kw, the PM is also 0.02g/kwh, Exhaust flow is 1000CFM
then the soot content in the exhaust flow is (in g/liter):

The amount of soot generated in one hour:
0.02g/kwh * 200kw
=4 g/ hour
=0.0666 g/ min

1000CFM = 28316.8 liter/min

so the PM emission rate is:
(0.0666g/min) / (28316.8liter/min)
= 0.0023mg/ Liter
------------------------------------------------------------
Is the above caculation correct??

Hello there,

Thank you for reaching out with your question. Your calculation seems to be correct based on the information provided. However, it is important to note that the emission standard for PM is specified as grams per kilowatt-hour (g/kwh), while the exhaust flow is measured in cubic feet per minute (CFM). In order to accurately calculate the soot content in grams per liter, you will need to convert the exhaust flow from CFM to liters per minute (L/min) and then multiply it by the PM emission rate. The conversion factor for CFM to L/min is 28.3168, so the calculation would be:

(0.0666 g/min) / (1000 CFM * 28.3168 L/min per CFM) = 0.0023 mg/L

I hope this helps clarify any confusion and you are able to accurately calculate the soot content in your exhaust gas. Let me know if you have any further questions.

## What is a diesel emission rate calculation?

A diesel emission rate calculation is a mathematical process used to determine the amount of soot or particulate matter emitted by a diesel engine. This calculation takes into account factors such as engine size, fuel type, and operating conditions.

## Why is it important to calculate diesel emission rates?

Calculating diesel emission rates is important for monitoring and reducing air pollution. Soot or particulate matter emitted from diesel engines can contribute to health problems and environmental damage. By accurately calculating emission rates, policymakers and scientists can develop strategies to reduce diesel emissions and improve air quality.

## How is the diesel emission rate calculated?

The diesel emission rate is typically calculated using data from emissions tests or engine performance models. This data is then plugged into a formula that takes into account engine characteristics, fuel consumption, and emission factors. The resulting calculation provides an estimate of the amount of soot emitted by the engine.

## What factors can affect the diesel emission rate?

Several factors can affect the diesel emission rate, including engine type, fuel quality, and maintenance. Modern diesel engines with advanced emission control systems will generally have lower emission rates compared to older models. The type and quality of fuel used can also impact emission rates, as well as regular maintenance and proper engine tuning.

## How can diesel emission rates be reduced?

There are several strategies for reducing diesel emission rates, including using cleaner fuels, implementing emission control technologies, and improving engine design. Proper maintenance and regular emissions testing can also help identify and address any issues that may contribute to higher emission rates. Additionally, promoting the use of alternative energy sources, such as electric or hybrid vehicles, can also help reduce overall diesel emissions.

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