18

2023

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01

Advantages and disadvantages of methanol engine?

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1、 Benefits

1. Emission and environmental protection

The methanol engine is mainly powered by consuming methanol fuel, which is a relatively clean energy. Compared with the traditional gasoline internal combustion engine, the methanol engine basically only emits carbon dioxide and water. Although it will emit a small amount of carbon monoxide under the condition of insufficient combustion, its environmental protection level is still far higher than that of the traditional internal combustion engine.

2. Good fuel economy

Although the combustion calorific value of methanol-gasoline is not high, it needs to consume more fuel to obtain the same combustion thermal efficiency as gasoline, but because the price of methanol-gasoline is relatively low, such as the lowest price of methanol-gasoline in Guizhou, which is only 3 yuan/liter, the comprehensive fuel economy of methanol-gasoline engine is quite good.

3. High security

Because the steam pressure of methanol is much lower than that of gasoline, steam is less volatile than gasoline, and the proportion of steam generated by the methanol engine is very large, so the possibility of engine misfire, deflagration and other risks is also lower.

2、 Disadvantages

1. Limited energy supplement

For example, some specific methanol engines can only be filled with methanol gasoline of specified grade. At present, the penetration rate of methanol gasoline filling stations in China is relatively low, and not every filling station has fuel of specified grade that can meet different methanol engines.

2. The sealing property will be reduced after a long time of use

Although the methanol engine has been specially treated for methanol gasoline to reduce the corrosivity of methanol gasoline, the sealing parts of the engine still need to use plastic, rubber and other materials, so the tightness of the engine will decline after a long time of use, which may lead to methanol gasoline leakage.