Diesel Generator Sets Emit Harmful Substances When Running

In addition to generating a large amount of hot gas, diesel generator sets will also generate a large amount of combustion exhaust gas, such as carbon dioxide, carbon monoxide, water vapor, nitrogen oxides, etc., according to their harm to human beings, can be divided into harmful emissions and harmless emissions. There are two types of emissions. Hazardous emissions, also known as emission pollutants, mainly come from exhaust emissions (commonly known as tail gas), with a small amount from crankcase emissions and fuel evaporative emissions. Exhaust emissions are harmful substances emitted from the exhaust pipe of a diesel engine.

The diesel oil used in the diesel generator set is a high molecular hydrocarbon. When it is completely burned in the combustion chamber, it will only produce carbon dioxide and water vapor, plus excess oxygen and residual nitrogen. These components are the components after the complete combustion of fuel and air. products, these components in the exhaust gas are harmless from a toxicological point of view (CO2 was not considered a pollutant in the past, but with the extensive use of petroleum fuels, the volume fraction of CO2 in the atmosphere has changed from industrial. The 280×10-6 at the beginning of the era has increased to about 340×10-6 now, causing the greenhouse effect and attracting the attention of all mankind).

In addition to the above-mentioned basic components, there are also incomplete combustion products and intermediate products of combustion reactions in the diesel engine exhaust, mainly including carbon monoxide, hydrocarbons, sulfur dioxide, NOX and PM, etc. The total mass of these components is in the exhaust emissions of diesel engines. The proportion is not large, less than 1%, but most of them are harmful, or have a strong irritating odor, and some have carcinogenic and mutagenic (mutation) effects, so they are classified as harmful Emissions.

The harm of exhaust gas to human body.

After CO enters the human body through the respiratory tract, it will combine with hemoglobin, destroy the oxygen exchange mechanism in the blood, and cause hypoxia to damage the central nervous system, causing discomfort, vomiting, coma and dementia.

HC contains many carcinogens, and long-term exposure can induce lung cancer, stomach cancer and external cancer.

NO2 reacts to the human eye mucosa, causing conjunctivitis, keratitis, inhalation of lung distension, and pneumonia and pulmonary edema.

When HC and NOx are exposed to ultraviolet rays when the sun is strong, chemical smog will be produced, which will make breathing difficult, plants wither and yellow leaves, and accelerate the aging of rubber products and buildings.

PM can cause chronic diseases such as asthma, bronchitis and emphysema after being inhaled into the human body; agricultural production systems such as PAH adsorbed on soot particles are even more harmful carcinogens.

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