Volume 11 Issue 4 ( December 2024)

Currently the problem of greenhouse effect is into the world spotlight due to CO₂ emissions. Sources of CO₂ gas production in large cities from the transportation sector have reached around 60 - 70%. Efforts to reduce CO₂ gas production are carried out by developing environmentally friendly vehicles, including battery-based electric vehicles (BEV) or fuel cell electric vehicles (FCEV). FCEV is expected to be an environmentally friendly vehicle whose technology is mature. The main components of FCEV system consists of fuel cell stack that converts hydrogen gas into electricity, gas supply, wheel drive motor and hydrogen gas storage tank. The purpose of this article is to discuss a comparison of hydrogen gas storage tank materials from Aluminum (Al), Fiber glass composite and Stainless steel (SS) which have a working pressure 87.5 MPa (875 bar) by comparing the thickness of the tank wall, safety factor, and tank mass. The study carried out the analysis of strength of using ASME CODE pressure vessel of tanks from various materials. The shape of the hydrogen gas storage tank is a cylinder with a capacity of 5.6 kg with a volume of 142.2 L. The material of storage tank is aluminium (Al), fiber glass and stainless steel (SS). Each material was evaluated the strength, thickness and mass of storage tank. The yield stress materials was taken from secondary data to evaluate the safety factor material. The result analysis of storage tank material shown that the lightest mass is fiber glass of 92.3 kg while stainless steel the heaviest of 1381.33 kg. The thinnest of material with safety factor of 1 is fiber glass material.

Keywords: FCEV; ASME CODE; strength materials; safety factor; storage tank