Compared with the convenience and speed of domestic high-speed rail, many people have experienced, since the domestic high-speed rail uses electricity to start, high-speed rail is so excellent,So why does the United States, the hegemon of the railways, still use internal combustion engines to run trains?
Could it be that the internal combustion engine used in the United States is the most advanced technology in the world? Or is the electric drive used in domestic high-speed rail not as good as the internal combustion engine?
When it comes to internal combustion engines, most people immediately think of the engine in a car, but there is a huge difference between the two.
Although both are powered by gasoline as fuel, the actual difference is still very largeThe engine of the car is powered by gasoline combustion, and although it also generates electricity, the electricity is mainly used for various facilities in the car.
The internal combustion engine on the train in the United States is very different, although it also uses fuel to provide power, but it mainly relies on the operation of the internal combustion engine, and then cooperates with the drive generator to generate electricity to provide power for the train.
That is to say, the internal combustion engine trains in the United States still rely on electricity to drive, and this disadvantage is also very obviousWhen an internal combustion engine is running, it produces a lot of noise and greenhouse gases, which can cause great damage to the environment
After all, nowadays, withThe greenhouse effectAs global temperatures are slowly rising, the glaciers in the Arctic are melting, leading to a rise in sea levels in coastal areas of various countries, affecting coastal residents.
Most of the fuel used in internal combustion engines is gasoline, and burning gasoline will produce greenhouse gases, while trains generally use extremely large power and use relatively more fuel, which will lead to further damage to the environment.
Even if a silencing device is added to the internal combustion engine, the sound emitted by the internal combustion engine is much reduced, and it will still affect the people in several carriages close to the internal combustion engine.
Not only that, but due to the limited power supply of the internal combustion engine, the speed is much worse than that of trains in most countries.
The disadvantages of the internal combustion engine are clear at a glance, and all of them endanger people's daily lives.
However, the internal combustion engine still has very obvious advantages, after all, the geographical environment of the United States is very different, and the main purpose of the train is still in the transportation of goods, so it is not like the domestic high-speed rail needs to be extremely fast, and what is needed is the lowest cost.
The internal combustion engine in the United States has a history of hundreds of years, and there is a huge gap compared with the internal combustion engine in other countries, and trains equipped with internal combustion engines can run in various harsh environments.
Just like some time ago, Hunan, Hubei and Hubei regions in China had a lot of weather reasonsFreezing rain,As a result, many trains in China have been unable to operate, and some high-speed trains have even been forced to stop on the road.
Due toFreezing rain fell on the power grid, so the high-speed train could not get enough power from it, causing it to run unfunctioning, which can be avoided by internal combustion engines.
At that time, when the high-speed train stopped on the road, it was still the train with internal combustion engines that pulled the people on the high-speed train to their destinations.
Not only that, but in some sparsely populated areas, it would undoubtedly cost a lot of money to build the power grid lines used by high-speed rail, and in these sparsely populated areas, the professionals who repair railway equipment cannot live in various areas for a long time.
And the internal combustion engine can solve this problem, and the United States is also because of these problems, no matter which state in the United States, there will be freezing rain for a period of timeIf you use an electrically powered train, the line will have a huge impact
On some steep roads, the installation of electrically driven equipment will increase a lot of money, and the efficiency requirements for trains are also extremely high, and the power shown by electrically driven trains in these areas is relatively wasted.
In addition, the maintenance of the railway track of the internal combustion engine train is relatively easy and the cost will be much lower, which is also one of the advantages of trains with internal combustion engines.
With the development of science and technology, most of the domestic trains have been converted to electric drives, and only a small number of areas in China use internal combustion engine trains.
The shortcomings of domestic high-speed rail trains are also very obviousDue to the country's population density is among the highest in the world, domestic trains are mainly for the convenience of people.
The domestic train is mainly convenient for people to travel, so there are extremely high requirements for the driving speed, the internal combustion engine obviously can not meet the demand for speed, and the speed of electric drive can meet people's needs.
Since most of the domestic trains are purely electric, it is very consistent with the environmental awareness of today's societyAfter all, electric drive can reduce environmental pollution, and the noise generated by electric drive will be much smaller.
The disadvantages are also very obvious, first of all, the equipment on the railway needs to be repaired and maintained regularly, which is a great loss to the economy.
In some special climates, it is also easy to have some special circumstances, which make it impossible to run and stopThere are also endless situations that stop halfway.
However, as the latest scientific and technological products, the domestic high-speed railway has undoubtedly brought great convenience to people, and the domestic railway industry is very perfect.
So why does the United States, as a scientific and technological power, comprehensively upgrade its railways to further improve the environment on which people live?
The power transmission of domestic high-speed rail can be said to have created a historical precedent, providing great convenience for human society, reducing the pollution of the environment a lot, and it is better for modern times to focus on environmental protection.
Although the internal combustion engine can run in various environments, the harm to the environment is worthy of people's attentionAs the world's only superpower, the United States should be at the forefront of protecting the environment, so why do they insist on using internal combustion engines as power?
The scientific and technological level of the United States is obvious to all, and the leading position in science and technology has given it a very high position in many fields, and the power transmission system developed in China is not a problem for the United States to develop in terms of science and technology.
But many of the situations in the United States are different from those in China, and it is precisely because of these differences that the United States insists on using the internal combustion engine as the power system for trains.
The United States is a vast land, but its population is only about one-fifth of that of ChinaSuch a huge population gap has led to a situation in the United States that is vast and sparsely populated, and the United States has excellent road development, so people mainly rely on cars to get around.
For those who want to travel far, the preferred mode of transportation is by planeNot only is the time faster, but it's also much more comfortable.
If the United States improves the railroad in an all-round way and uses electric power, it will become a problem to build facilities and maintain them on a daily basis.
And the main way of use of trains in the United States is to transport goods, andYou don't need to be too fast to transport goods, the main pursuit is itstability, as well as security
The use of the internal combustion engine as a power source, although it will cause pollution to the environment and will be very noisy, but for American trains transporting goods, these problems are not a big problem, and the cost will be relatively reduced.
As a world power, the United States is also very superior in resources, as a major oil country, the United States is not short of diesel, so the use of internal combustion engines as the power source of trains will naturally not consider the lack of resources.
And that's not all,Since the use of internal combustion engines in the United States has a history of hundreds of years, all railways in the territory are railways used by internal combustion engine trainsIf the United States were to improve its power transmission system in an all-round way, it would require a lot of money, even in a country like the United States.
And the cost of using electric transportation will also be relatively large, just like the domestic high-speed rail, although it meets people's travel needs, but it still continues to lose money, and in the past few years, there have been many accidents.
With the improvement of convenience, the conditions required for the operation of equipment have also increased a lot, and now the domestic high-speed rail has lost moneySix trillionLeft and right, such a high loss is difficult to recover.
The population of the country is relatively large, and the number of jobs required will also increase, and the maintenance of domestic railways will have enough population, butThe United States, on the other hand, has more than a billion fewer people than ChinaIf the United States starts to build a power transmission system, it will need more talent.
The number of maintenance personnel needed is a huge group, which may not be a big deal for China, but it will increase the pressure on the United States.
As a railway hegemon, the United States has the world's largest railway mileage, up to29.350,000 kmmileage, and domestic onlyMore than 150,000 kmof railways, but the staff of the China Railway Bureau has already exceeded3 million people
The U.S. has nearly twice as many railroad lengths as China, and will only need more people than China, and a full transformation to a power transmission system similar to China's will require many more maintenance personnel.
After all, the scientific and technological research and development of the power transmission system has reached a new height, both stability and transmission performance have a very high effect, but due to natural factors, it needs frequent maintenance, and also needs to deal with various emergencies.
Therefore, whether it is China or the United States, the railway system is based on various situations, and the internal combustion engine and power transmission also have their own advantages, as long as it can provide people with a convenient life, it is a good project.
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