Diesel engine emissions - Exhaust emissions generated by a vehicle are harmful enough for health. Today the whole world is creating rules that force car manufacturers to produce low-emission cars. All vehicles have emissions, but that is quite dangerous is the exhaust emissions generated diesel engines. Emissions from diesel engines have a real impact on the health of everyone.
A study conducted by Nature calculated how many diesel engine emissions and their impacts on human health by 2015. The results obtained 38,000 lives lost due to air pollution, while the vehicle has followed a rule.
The study focuses on 11 auto markets including the United States, 28 EU member states, Australia, Brazil, Canada, China, India, Japan, Mexico, Russia, and South Korea. In total, these countries sale about 80 percent of diesel cars globally.
The UK government has estimated that exposure to NOx and particulate emissions from diesel engines, is responsible for 52,000 deaths in the UK. NOx emissions are also a major cause of smog in major cities around the world as well as public health issues. This has caused pressure on vehicle manufacturers to reduce diesel engine emissions, with a target of European NOx reduction on highways for heavy vehicles (trucks or other commercial cars), which is almost impossible to fulfill. "There is no viable alternative to today's diesel engines, especially in heavy-duty markets that will be used for many more years. New systems are needed now to address NOx emissions, to help reduce the number of deaths and allow manufacturers to meet the reduction of emission targets set under Diesel engine emission regulations by the Government.
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Although the sale of the car has passed a series of emission test tests, in fact, found almost a third of diesel-fueled cars and more than half of diesel-engined light cars exceeded the set emission limits.
This means the rule is not fully implemented. Should the results obtain through the test and also the reality in the field have the same number?
Here's the Diesel engine emissions content
residue / dirt
Particulate in diesel engine exhaust gas comes from the fuel particle particles that still contain the coarse dirt (ash, dust) due to poor fuel processing.
So at the time of burning, the dirt will decompose from the arrangement of other particles and not burn. The more residuals in the fuel, with any sophisticated engine, will be produced exhaust gas with a cloud of black smoke.
Sulfur present in fossil fuels is commonplace, the sulfur is organic or non-organic. The use of fossil fuel will usually produce sulfur dioxide (SO2) and sulfur trioxide (SO3) in the ratio of 30: 1, meaning that sulfur dioxide is a very dominant part in diesel exhaust gas.
Sulfur dioxide in the air, when encountered with water vapor, will form the acidic arrangement, then it can happen acid rain is very harmful.
diesel fuel does not burn
fuel that does not burn after combustion process there is 7% of all diesel exhaust gas. This unburned solvent is Carbon (C) which is separated from HC from the fray during combustion. The more diesel fuel does not burn out, the more black the smoke of exhaust gas emitted by the engine.
Read too: Diesel Engine Compression Ratio
8% of diesel exhaust gas is a collection of various toxic gases such as CO, HC, CO2, NOx. It has been described previously that the exhaust gases even though only in small quantities (8%), but still contribute to air pollution.
These toxic gases can be reduced by making the combustion process in the engine more perfect by increasing the compression capability and fuel injection timely and quantities with better fuel quality.
I think that's all articles about diesel engine emissions, hopefully, can add your insight, look forward to the next article.