The quest to develop a low-cost, volume efficient CNG ship has been pursued for two decades. The optimum way to store compressed gas is to stack long lengths of hexagonal close-packed pipe horizontally in the holds of a ship. Past attempts to use this approach failed because as the ship flexes at sea, the pipes rub against each other which is clearly unacceptable. A novel technical solution has been developed and a ship design, based on this new "Optimum" technology, was recently Approv…
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