China's first domestic hydrogen-powered subway construction vehicle developed by China Railway Wuhan Electrification Engineering Group Co., Ltd., a subsidiary of China Railway Group Limited, rolls off the assembly line in Xiangyang, Hubei Province, on July 18. [Photo/sasac.gov.cn]
China's first domestic hydrogen-powered subway construction vehicle developed by China Railway Wuhan Electrification Engineering Group Co., Ltd., a subsidiary of China Railway Group Limited, rolled off the assembly line in Xiangyang, Hubei Province, on July 18.
The vehicle is 11.4 meters long, 2.56 meters wide, and 3.58 meters tall, with a curb weight of 27 tons and a maximum load of three tons. It uses a hydrogen fuel cell and lithium battery hybrid power system to provide traction power. The vehicle has a maximum power of 220 kilowatts and a design speed of 80 kilometers per hour. Equipped with a 50-kilogram hydrogen storage and supply system, it can continuously operate for 32 hours after being filled with hydrogen for 30 minutes.
China's first domestic hydrogen-powered subway construction vehicle developed by China Railway Wuhan Electrification Engineering Group Co., Ltd., a subsidiary of China Railway Group Limited, rolls off the assembly line in Xiangyang, Hubei Province, on July 18. [Photo/sasac.gov.cn]
Compared with conventional fuel-powered vehicles, the hydrogen-powered subway construction vehicle doesn't use a traditional diesel engine as the core drive system, and the noise generated is greatly reduced. The byproduct during the operation of the fuel cell is water, leading to a considerable decrease in carbon dioxide and other emissions. It can be used in relatively closed environments, such as subways, tunnels, and mines, and can reduce carbon emissions by 225 tons throughout its life cycle. In addition, the energy density of the vehicle is higher and the service life is longer, which further reduces its operating and maintenance costs.
China's first domestic hydrogen-powered subway construction vehicle developed by China Railway Wuhan Electrification Engineering Group Co., Ltd., a subsidiary of China Railway Group Limited, rolls off the assembly line in Xiangyang, Hubei Province, on July 18. [Photo/sasac.gov.cn]
Currently, the total length of subway lines in operation across China has reached 10,000 kilometers, with additional 6,000 kilometers currently under construction. As subway construction and maintenance vehicles are increasingly adopting new energy technologies, the market prospects are huge. The rollout of the first domestic hydrogen-powered subway vehicle is of great significance for promoting green innovation in the industry. The photo shows the staff inspecting a hydrogen-powered subway construction vehicle.
(Executive editor: Xie Yunxiao)
