relevant international standards. Japan’s Toyota, Nissan, Honda, GM, Hino,
Mitsubishi, Suzuki and other automobile companies are conducting road driving
tests and data collection of fuel cell vehicles, preparing to develop fuel cell vehicle
industry standards and Japan’s fuel cell vehicle national standards. With the advent
of the hydrogen energy society, countries are planning to start infrastructure construction such as hydrogen production, hydrogen storage and hydrogen station
development.
For vehicle-mounted high-pressure hydrogen transmission system, the main
problems that need to be studied at present are as follows: 35 and 70 MPa
high-pressure pneumatic control devices; aerodynamic control of vehicles in
extreme environments such as large temperature range, vibration, impact and
centrifuge. At present, the Van der Waals equation of real gas, which was discovered by Dutch in 1873 and won the Nobel Prize in Physics in 1910, is used to
calculate the state parameters of high-pressure gases. The revised terms of gas
intermolecular force and molecular volume are considered, but there is a big error
between the calculated results and the experimental results of Van der Waals
equation for high-pressure gas with pressure above 35 MPa.
Since the discovery of hydrogen energy technology, researchers at home and
abroad have used mature space technology for reference to develop mobile
equipment which need self-contained energy, such as fuel cell vehicles, hydrogen
energy aircraft, and fuel cell hybrid power engineering machinery. The basic
research and development of pneumatic control devices above 35 MPa and ultrahigh pressure hydrogen storage cylinders will become an important research
direction in the field of pneumatic control.
13.2 Hydrogen Transmission and Hydrogenation
Characteristics of Vehicle-Borne High-Pressure
Hydrogen Transmission System Cylinders
Advanced and applicable hydrogen transmission technology is one of the key
technologies for hydrogen energy utilization. Hydrogen energy vehicles mostly use
high-pressure hydrogen storage. In order to ensure a driving distance of 200 km
after one hydrogenation, the hydrogen storage pressure is usually above 35 MPa at
present. The hydrogen storage pressure should be as high as 70 MPa to ensure the
driving distance of 500 km after one hydrogenation. According to the requirement
of driving distance of hydrogen fuel cell vehicle, a mathematical model of the
relationship between hydrogen supply of vehicle-mounted high-pressure hydrogen
transmission system and driving speed and distance based on the basic theory of
charging and discharging gas from fixed container is established, and the parameters relationship of hydrogen storage, hydrogen supply, and driving distance are
obtained. The Van der Waals equation of real gas is introduced into the
vehicle-mounted high-pressure hydrogen transmission system, and the hydrogen
13.1 Pneumatic System and Fuel Cell Hydrogen Transmission System
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