The green car supports a number of Spring Festival lines, highlighting the value of the internal combustion engine, and the new energy is really not good at the critical moment

Zhizhi Auto / Zhengqi

The Spring Festival has arrived, and the increasingly busy national traffic has sent countless wanderers back to their hometowns. But this has also put a lot of pressure on the Spring Festival transportation routes. Among them, the pressure on railways around the country is even greater.

But it also made it difficult for experienced Chinese railway workers, who brought out a group of veterans who had been in service for decades to solve these thorny problems.

1. Not afraid of blizzard and freezing rain, the old man of the internal combustion engine is on the horse

At present, most of the domestic railway transportation has been replaced by high-speed rail and EMUs, but this does not mean that the internal combustion engine has completely withdrawn from history.

During the Spring Festival, many places encountered snowstorms, in order to solve the problem of insufficient power in the Spring Festival. Some railway departments pulled out some internal combustion engine locomotives and took the high-speed rail as the front of the locomotive. In addition, a number of green cars were used, which effectively increased the passenger traffic of the Spring Festival.

This strange scene of "grandpa walking with his grandson" amused many netizens. No matter how times have changed, these smoky trucks seem to be more durable and reliable companions.

The reappearance of "ancient black technology" suddenly makes people notice that the internal combustion engine still has value in this era. It can even come in handy at some critical moments.

2. Whether new energy can completely replace the internal combustion engine, thermal efficiency or the crux of the problem

The reliability of the internal combustion engine is not only reflected in the field of trains, many old drivers still believe that the reliability of traditional fuel vehicles is higher than that of new energy vehicles. Facts have proved that this extreme winter is not only about high-speed rail, but also about new energy that is stuck on the highway.

After all, compared with electric vehicles, which have only developed rapidly in recent years, fuel vehicles have been developed for more than 100 years, with mature technology and a lot of research and development experience.

Fuel vehicles with lighter bodies and more stable power output do have their unique advantages. But the problem is that after more than 100 years of development, the thermal efficiency of combustion vehicles has been almost developed to the limit.

At present, the thermal efficiency of fuel engines is only about 40%, while the thermal efficiency of electric vehicles can reach 90%. Although the common people burn oil and electricity, they only feel that spending money is different. But scientists and environmentalists say that the engine can only use 40% of the energy of petroleum fuel, which is too wasteful.

In the eyes of radical electric car leaders like Elon Musk, the poor thermal efficiency of fuel vehicles is even more "heinous". After all, in Musk's heart, human beings will eventually go to Mars one day, and if such a good fuel as oil is used up on Earth, it will be useless when it comes to Mars, isn't it a pity.

3. Electric vehicles are not necessarily environmentally friendly, oil hegemony is the key

It is also believed that the promotion of electric vehicles is to reduce greenhouse gas emissions, protect the atmosphere, and reduce pollution. But in reality, the production of electric vehicles is not much less polluting than that of gasoline vehicles.

At present, electric vehicles produce 11 kilograms of carbon dioxide per 100 kilometers, and gasoline vehicles produce about 15.1 kilograms of carbon dioxide per 100 kilometers.

It seems that fuel vehicles do do more damage to environmental protection. But on the production side, the production of electric vehicles will produce about 15 tons of CO2, while the production of one combustion engine will only produce about 7 tons of carbon dioxide. In addition, various toxic chemical gases are produced during the production of electric vehicle batteries. Therefore, new energy vehicles are not absolutely environmentally friendly.

In fact, for the country, the development of new energy vehicles is not only in environmental protection. Although the mainland produces oil, its per capita oil reserves are insufficient, and it is difficult to rely solely on domestic production to supply the country's automobiles.

And if we continue to rely on oil imports, we will inevitably be constrained internationally by countries that have oil hegemony. Therefore, the development of new energy vehicles is conducive to the elimination of the risk of a future oil embargo on the mainland.

In addition, new energy vehicles do not have a gearbox and have a relatively simple structure, which determines that local car companies can develop new energy vehicles to cross decades or even hundreds of years of fuel vehicle technology accumulation in Europe, America, Japan and South Korea. Establish the technical advantages of new energy vehicles and realize corner overtaking in the automobile industry.

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