Effects of Hydrogen, Methane, and Their Blends on Rapid-Filling Process of High-Pressure Composite Tank

Adam Saferna, Piotr Saferna, Szymon Kuczyński (), Mariusz Łaciak, Adam Szurlej and Tomasz Włodek
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Adam Saferna: Techplast Sp. z o.o., Krakowska 83 P, 34-120 Andrychów, Poland
Piotr Saferna: Techplast Sp. z o.o., Krakowska 83 P, 34-120 Andrychów, Poland
Szymon Kuczyński: Techplast Sp. z o.o., Krakowska 83 P, 34-120 Andrychów, Poland
Mariusz Łaciak: Department of Natural Gas Engineering, Faculty of Drilling, Oil and Gas, AGH University of Krakow, Mickiewicza 30 Av., 30-059 Kraków, Poland
Adam Szurlej: Department of Natural Gas Engineering, Faculty of Drilling, Oil and Gas, AGH University of Krakow, Mickiewicza 30 Av., 30-059 Kraków, Poland
Tomasz Włodek: Techplast Sp. z o.o., Krakowska 83 P, 34-120 Andrychów, Poland

Energies, 2024, vol. 17, issue 5, 1-20

Abstract: Alternative fuels such as hydrogen, compressed natural gas, and liquefied natural gas are considered as feasible energy carriers. Selected positive factors from the EU climate and energy policy on achieving climate neutrality by 2050 highlighted the need for the gradual expansion of the infrastructure for alternative fuel. In this research, continuity equations and the first and second laws of thermodynamics were used to develop a theoretical model to explore the impact of hydrogen and natural gas on both the filling process and the ultimate in-cylinder conditions of a type IV composite cylinder (20 MPa for CNG, 35 MPa and 70 MPa for hydrogen). A composite tank was considered an adiabatic system. Within this study, based on the GERG-2008 equation of state, a thermodynamic model was developed to compare and determine the influence of (i) hydrogen and (ii) natural gas on the selected thermodynamic parameters during the fast-filling process. The obtained results show that the cylinder-filling time, depending on the cylinder capacity, is approximately 36–37% shorter for pure hydrogen compared to pure methane, and the maximum energy stored in the storage tank for pure hydrogen is approximately 28% lower compared to methane, whereas the total entropy generation for pure hydrogen is approximately 52% higher compared to pure methane.

Keywords: gas tank filling; hydrogen; compressed natural gas; alternative fuels; energy storage; high-pressure storage vessel; hydrogen storage (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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