Thermodynamic, economic and environmental analyzes the compression and storage processes of green hydrogen involved in fueling station for vehicular use

Abstract

This article proposes thermodynamic, economic and environmental analyzes of the compression and storage processes of a hydrogen fueling station for vehicular use with a calculation methodology focused on compression processes in different pressure ranges (20, 35 and 70 MPa) of renewable hydrogen and later in your storage. In a schematic way, the study consists of analyzing three different aspects of the production, compression, storage and distribution processes of hydrogen for vehicle use. The results of the thermodynamic analysis show that the ratio between the electrical work of the compressor and the energy stored in the form of hydrogen ranges from 6.1% to 8.4%. As for the results of the economic analysis, it was observed that the hydrogen storage costs between 0.01252 to 0.01246 US$/kWh and the final cost of the hydrogen obtained between 0.18952 to 0.33746 US$/kWh. Concerning the results of the environmental analysis, the highest hydrogen compression efficiency was at a pressure of 35 MPa, and among the three renewable energy sources analyzed, hydroelectric obtained the highest efficiency, being the least polluting. It is concluded that the proposed system is attractive and proves to be viable from thermodynamic, economic, and environmental aspects, providing great advances for the electric car transport sector.