Overwound toroidal pressure vessels for CNG and hydrogen storage in alternatively fuelled vehicles

摘要

At the storage pressures that are known to be feasible with existing containment systems, Compressed Natural Gas (CNG) occupies approximately four times the volume needed for conventional liquid fuels. Consequently, in alternatively fuelled vehicles, finding the necessary storage space presents an even more severe problem than accommodating the mass of the gas containment system. Under these circumstances, shape options other than the cylinder are of particular value in allowing better use to be made of the available volume.