Hyundai Heavy Industries recently launched a new concept design that can increase the container carrying capacity of a ship. The patented concept called “Skybench” is applicable to any large twin-island container ship and can extend cargo capacity by 450 teu on a 23-row wide 19,000 teu ship and by 350 teu on a 20-row wide 14,000 teu vessel.
Space for additional containers can be made by sliding the upper three decks of the container ship’s accommodation area, creating area for cargo which would have otherwise gone unused. The accommodation block is accommodated on two side casings on a ship, which stretch the length of two 40 ft bays and where lifeboats, provision cranes and utility rooms are located.
Four electric-driven train units are used to slide the blocks from its normal position to temporary port position. The operation takes ten minutes and the sliding can be minimized to a single port at each end of a rotation since extra containers can be grouped adequately when preparing a cargo plan.
A unique safety feature of this arrangement allows the sliding block to get completely detached and float in water in case of emergency such as sinking of the ship.
According to Hyundai, the innovation could compensate for the capacity lost by gas-powered ships compared to heavy fuel oil (HFO-fuel) vessels, due to the large size of liquefied natural gas(LNG) tanks.
Reference and Image Credits: container-mag.com