Design of a New Innovative High Pressure Hydrogen System Depending on Multi-layer Section

Abstract

Based on the rising environmental pollution and finite fossil fuel new storage system must develop to dissipate the primary energy source of renewable energy to the second energy source, like hydrogen. A view into the field of pressure tank technology shows that usually today it is common practice to design a huge cylinder tank. On market, the state of the art high pressure storage systems, type III or type IV, are classified in the Regulation (EC) No 79/2009 [1]. The idea of the new design is to store as much as possible mass of hydrogen in a smaller volume without losing a lot of constructed space. The first idea is to reduce the inner diameter and create new design based on bending pipes. The smaller cross-sectional area of the pipe caused lower tangential and axial stresses with the result of reducing the wall thickness and resulting weight. This modification has a negative influence of the whole structure, because with decreasing diameter the relation between these significant masses also gets worse, as the inside volume of the pipes gets lower. The challenge of drafting a new high pressure storage system is to find a compromise between the optimum diameter for a good amount of inside volume and comparably low mass of the hydrogen storage structure. The comfort for the user, volume and mass of hydrogen for the car depends on the design.