哪位空闲的有才的XDJM帮我翻译下如何？
如下……1.
The constitution of the waste in diesel and its effects to the environment
The harmful constitutions in low speed marine diesel consist of NOx , Sox, CO, CO2, HC etc. and other particulate emissions.
NOx：it is formed in the fuel burning sprays. Maximum temperature and oxygen density in the combustion process are the shadow Main factor of loud NOx content. According to rough to estimate, burn temperature increase 100 ℃ can make content of NOx increase by 3 times. Under the high temperature, the oxygen and nitrogen react and produce NO directly, in the course of swelling and exhausting subsequently, some NO will be changed into NO2 and N2O, 5 and 1 that the proportion is usually original NO. NO will continue changing into NO2 in the atmosphere, and NO2 is a kind of poisonous brown gas, it is big can produce soluble nitric acid with the moisture after being sucked the lung by the human body in angry And cause pulmonary emphysema. In addition NO2 helded up in the air will be washed by the rainwater, will increase the acidity of the soil, influence the growth of the plant. So NOx is influencing people's living environment seriously to the discharge of the atmosphere, so the control of NOx is to discharge primary problem controlled..
Sox: The sulphur content was oxidized and turned into in it is the fuel. As a large amount of of high sulphur content, low-quality fuel is used, SOx produced thereupon increases, SOx in the waste gas is increasing constantly too. In SOx that is discharged, the principal ingredients are SO2 and SO3, its proportion is usually 15: 1 . Like NOx, after the waste gas hits SOx and is entered the atmosphere, on one hand has polluted the air, on the other hand SOx in the atmosphere will be dropped to the ground with sleet, the ones that increase soil are acid, influence the growth of the plant, has destroyed the ecological balance of the nature seriously.
CO:Because the fuel and air can't be fully mixed, the combustion process is not complete and producing, it is a kind of poisonous gas too. The diesel engines are all higher excessive air coefficient and complete combustion process at present, so, the emission of the carbon monoxide is very small (can know from Fig. 2), and the carbon monoxide is flammable compound, one that is with combustion process of the diesel engine is more complete, the emission of the carbon monoxide will be smaller and smaller.
CO2: The fuel is burnt in the air cylinder of the diesel engine, must produce certain amounts of CO2. Though CO2 is nonpoisonous, the greenhouse effects caused by it, cause the concern in recent years. Generally speaking, reduce the oil consumption, use carbon content relatively lower fuel to reduce the effective means that the carbon dioxide is discharged.
The particle is discharged: The particle composition in the diesel engine waste gas mainly evolves from the fuel particle after not totally burning and condenses things and lubricating oil not totally burnt, in addition there are metal oxide and sulphate particle that ash content in a portion of fuel formed. These particles contain the strong carcinogen, pollute the air seriously, cause influence on the mankind's living environment.
In sum, in the discharge of the diesel engine, the harmfulness that NOx, SOx and particle discharge is greatest and most direct, so reduce NOx, SOx and particle and discharge and become main control goals which reduce pollution of waste gas .
页:
[1]