To visualize this multidimensional parameter space, we executed 6 5 = 7,776 MHSDT calculations, comprising all permutations of six possible values for five material properties (Table ). For each calculation, our design target was a storage system with tank fabricated of A286 that has a VSC higher than 700 bar pressurized gas. If the predicted maximum operating temperature exceeded the operational temperature limit of A286 (650 °C), the simulation changed the tank material to 316 stainless steel (316SS). If the maximum operating temperature exceeded the limit if 316SS, the system was assumed to be infeasible and was assigned a usable storage capacity of zero.