What is an aerodynamic car?
Aerodynamic experiments aircraft developed by China.
Air-powered automobile, full name of compressed air-powered automobile, is a kind of automobile that uses high-pressure compressed air as power source and air as medium, and converts the air energy stored in high-pressure compressed air into other forms of energy during operation. The research on aerodynamic vehicles first started in France. 199 1 year, French engineer GuryNegre obtained the patent of compressed air power engine. Its working principle is to use the high-pressure compressed air stored in the car to drive the piston in the engine cylinder to drive the car forward, which is the closest to the real aerodynamic car.
Close-up of pneumatic vehicle gas storage tank
Domestic research on pneumatic vehicles started late, and even fewer people put into the product testing stage. China people's enthusiasm for pneumatic cars may be attributed to CCTV's report on pneumatic cars in Tian Xiang in May 20 15. In the report, the staff of Tian Xiang Tuantuan described the working principle of the company's aerodynamic bus as "compressed gas gets an expansion pressure of 1224 times after being heated, and then drives the engine, and then drives the generator to generate electricity to push the bus forward". According to its working principle, the power transmission of Tian Xiang pneumatic bus has experienced a series of processes of "compressed air-engine-generator-motor", which is better than that of European MDI (MDI
Working principle diagram of air compressor that needs electric drive.
However, neither MDI pneumatic car nor Tian Xiang pneumatic car can get rid of the law of conservation of energy, because they do not have the ability to make compressed air. Take AIRPOD developed by MDI as an example. Equipped with a compressed air tank with a compression capacity of 300L, made of steel. The compressed air stored in the tank can drive the AIRPOD to travel 120 km, and the top speed of the two-cylinder version can reach 80 km/h.
AIRPOD at the 2009 Geneva Motor Show
In terms of safety, the pressure of compressed gas used in pneumatic vehicles is usually 30MPa, and the compressed gas tank made of ordinary steel can meet the requirements of safe storage. Considering the use and place of pneumatic vehicles, there is no need to worry about the storage safety of compressed air tanks.
Before the compressed gas in the car is used up, the air-powered car must be inflated at the nearest compressed air station. Compressed air needs to consume electric energy, which comes from nuclear power plants, thermal power plants, hydropower stations and so on. Therefore, in essence, aerodynamic vehicles still can't get rid of traditional energy sources. Therefore, we need to have a clear understanding of pneumatic vehicles. At present, air-powered vehicles can't get rid of traditional energy sources. Aerodynamic cars are by no means "running without traditional energy" as mentioned in the video of friends circle. If the compressed air base station is out of power and can't continue to compress air, then the aerodynamic cars running in the street may be squatting.
The air cushion is inflating.
However, the market prospect of air-powered vehicles is still good. In urban centers, key tourist attractions, nature reserves, golf courses and other places with strict restrictions on exhaust emissions, it is necessary to use aerodynamic vehicles as commuter vehicles. The European version of MDI's AIRPOD has been mass-produced, and 20 14 is on sale, and the price is around 7500 euros.
It is very difficult to build a charging station at the grassroots level, and the difficulty of building a charging station can be imagined.
Nevertheless, there is still a long way to go to realize the large-scale application of pneumatic vehicles. First of all, pneumatic vehicles need dense distribution of gas filling outlets as a guarantee, which requires large-scale construction of basic gas filling facilities. Referring to the current infrastructure construction of charging piles for electric vehicles, it is conceivable that the construction of gas filling stations for air-powered vehicles is difficult. Secondly, compressed air is not cheap. According to the existing manufacturing cost, the manufacturing, transportation and storage cost of each tank of compressed air (300L) is around 20 yuan. At the distribution level, I'm afraid the price will be higher, and how many people are willing to pay for it will be a big question mark.