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Schematic diagram of energy conversion Jiang Xuanzheng
Prepare for trial operation.
9 hydrogen cylinders, 30 kg hydrogen to drive the whole vehicle, the locomotive can run for 24 hours
Compared with conventional electric locomotives and diesel locomotives, this new energy motor vehicle uses hydrogen as fuel, resulting in waste as water, which is clean, environmentally friendly and efficient.
Power: Hydrogen fuel cells are used as a power source to produce electricity: it generates electricity from chemical reaction by reacting hydrogen with oxygen in the air
"Exhaust gas": The waste generated is water, without any other harmful gases
Yesterday morning, on the railway line dedicated to Southwest Jiaotong University, a blue-and-white new energy electric motor vehicle, the “Blue Skyâ€, started slowly, marking the successful development of China’s first hydrogen fuel cell electric vehicle. Compared with traditional electric locomotives and diesel locomotives, this new energy motor vehicle uses hydrogen as fuel, resulting in waste as water, which is clean, environmentally friendly and efficient.
Power source? 9 hydrogen tanks drive the entire vehicle
As the locomotive starts slowly, a water mark remains behind the vehicle. "This is the 'tail gas' of this electric locomotive." Professor Chen Weirong, head of the research team of the fuel cell electric locomotive, said that the fuel cell electric vehicle uses a hydrogen fuel cell as a power source, which passes hydrogen and oxygen in the air. The chemical reaction generates electrical energy. The waste generated is water, without any other harmful gases. Therefore, it is a clean, efficient, safe and sustainable new energy source and is the most promising candidate for new vehicle energy.
The nine hydrogen tanks placed in the machine room of the vehicle are the source of power for this vehicle. The material on the outside of the bottle is carbon fiber. "Pistols do not burst." "Hydrogen and compressed air enter the reactor for chemical reactions, generate electricity, drive the motor to generate traction power, and promote the vehicle forward." Chen Weirong said that nine hydrogen tanks can hold about 30 kilograms of hydrogen, and can be filled with light-load continuous motion. 24 hours.
How to configure? Using Ferrari sports car parts
After boarding the train and entering the machine room, the complex lines and pipes are the eyes on which the "central nervous system" of this locomotive is. "Look, this is the system control technology for fuel cells. It is the core difficulty. It took more than four years to overcome it." Chen Weirong said that in more than four years, more than 900 million yuan of scientific research costs, more than 30 research teams After nearly a hundred failures, it was successfully developed.
The reactor, the hydrogen gas supply system, the air supply system, the water cooling system, and the energy storage system... Chen Weirong pointed to the equipments between the machines and introduced them one by one. He said that the hydrogen was transferred from the hydrogen tank to the stack. More than 1,000 sensors are used to detect the flow of hydrogen and control the reaction speed. The scroll-type high-pressure air pump that compresses air into high-pressure air uses the high-pressure air pump of the Ferrari sports car. The market price is as high as more than 70,000 yuan.
One application? Emergency rescue vehicle in subway cave
The design speed of this electric locomotive is 65km/h. "It can be widely used in rail transit engineering trucks, subway maintenance vehicles, construction vehicles, tourist attractions, sightseeing vehicles, etc., especially in relatively confined spaces such as subways and caves. Etc.†“A teacher from Southwest Jiaotong University said that in the confined space, exhaust gas produced by diesel locomotives is not easily discharged, and this kind of new energy electric locomotive has no air pollution problem and is very practical.
Price geometry? Listed at 7 million to 3 years
However, Chen Weirong confessed that the vehicle has room for improvement in terms of noise, heat dissipation, and system efficiency, and it is expected to be available in the market in about three years, priced at around 7 million.
"Not yet developed, there are many units contact us to order." According to Chen Weirong, with the success of the study, the Ministry of Railways has commissioned a research team to develop this type of "emergency rescue vehicle." Reporter's notes
Zero pollution is the future direction of locomotive development
Chengdu's haze has finally dispersed for several days. However, car exhaust still exists, and air pollution still exists. If it does not attract everyone's attention, it will come back at any time. Seeing this kind of “zero pollution†locomotive, the reporter’s heart moved. If this technology can be applied to ordinary vehicles and locomotives, will the Blue Sky plan be “excessively†completed every year?
Professor Chen Weirong said that compared with traditional electric locomotives and diesel locomotives, this fuel cell electric locomotive has a series of significant advantages in terms of cleanliness, environmental protection, and high efficiency, and has a wide range of application prospects. In recent years, it has gradually become the focus of rail transit research. And hot spots. “This kind of clean and environmentally friendly electric motor vehicle must be the direction of future locomotive development.†reporter Zhang Feifei’s photography Hao Fei
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