Analysis of the Hydrogen-Filling Process of Fixed Station and Skid Station Based on Different Working Conditions

Hydrogen energy is recognized as the most potential renewable energy in the 21st century due to the rising depletion of fossil fuels. Hydrogen refilling stations, as the infrastructure of hydrogen energy, are one of the key components of the entire hydrogen energy industry chain. Analyzing the filling process of hydrogen-refueling stations (HRS) helps to promote the construction of HRSs. Thus, it promotes the construction of a clean, low-carbon, safe, and efficient energy system and the high-quality development of the hydrogen energy industry. In this article, gas cylinders with nominal working pressures of 35 and 70 MPa are filled using three different HRSs, such as single-stage fixed station, three-stage fixed station, and skid station. The filling end temperature, filling energy consumption, filling rate, and filling time during the filling process are compared and analyzed. In the results, it is shown that skid station has the advantages of lower filling end temperature and less energy consumption. Thus, in terms of reducing energy loss, the skid-mounted HRSs can be promoted. In this article, gas cylinders with nominal working pressures of 35 and 70 MPa are filled using three different hydrogen-refueling stations, such as single-stage fixed station, three-stage fixed station, and skid station. The filling end temperature, filling energy consumption, filling rate, and filling time during the filling process are compared and analyzed.image (c) 2024 WILEY-VCH GmbH