Electrochemical Application For
Advanced Energy System Labortary.

Hydrogen Infrastructure

Hydrogen Station

Through the development of the entire system of the hydrogen charging station, the failure diagnosis of the nozzle and the nozzle replacement cycle are analyzed to recognize the failure of the hydrogen charging station system, and to suggest ways to improve problems.

In the case of hydrogen charging stations in Korea, the localization ratio of core component technologies is low. For these reason, it is necessary to expand the market size, and because of frequent failures of hydrogen charging stations, it is essential to secure market acceptability through localization of core components. In addition, since hydrogen charging stations currently use single-hose hydrogen chargers that cannot be simultaneously charged, major core parts of dual-type hydrogen chargers are organized, and research is being conducted accordingly.

It is intended to verify the performance of the core parts by implementing not only the nozzle but also the entire system to implement all situations during the supply, charging, compression, and storage of the hydrogen charging station. Through this research, it can be actualized to expand the market acceptability of hydrogen charging stations by presenting efficient operation strategies of charging stations through performance and efficiency comparison and presenting improvement directions through problem and fault diagnosis.

Fig.1 Schematic diagram of the system of the hydrogen charging station

Fig.2 Geometry of nozzle for dual charging

Hydrogen Tube Skid

Developing Hydrogen Tube Trailer system through 1-D programme SIMULINK Optimization of valve and charging strategy

  • Development of a model for securing stability and reliability of a tube trailer system for hydrogen transportation

  • Mechanisms related to changes in temperature and pressure during charging and discharging of hydrogen

  • temperature gradient analysis of tube trailer system

  • optimum design for manifold arrangement for efficient hydrogen supply

  • Hydrogen supply under uniform conditions to high-pressure containers by changing the diameter of manifolds.

  • Identify the relationship between the maximum temperatures in a large-capacity high-pressure container according to the pressure and temperature of hydrogen supplied.

  • An experimental formula between the inlet temperature, pressure, and the maximum temperature in the container is presented.

  • Development of supply hydrogen velocity control strategy according to various environments for high-speed hydrogen charging

Fig.1 Picture of developed type 4 pressure vessel

Fig. 2 Simulink Model Result