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Green dolphin 575: A new Handymax dry bulk carrier

Time：2014-06-24 Browse：106 Author：RISINGSUN
In December 2013 at Marintec in Shanghai, China, DNV GL and Shanghai Merchant Ship Design & Research Institute (SDARI) introduced the Green Dolphin 575 concept design for a Handymax bulk carrier. This is the second Green Dolphin design and builds on the success of the Handysize Green Dolphin 38. It uses technologies that are already available for commercial use, so it can meet ship owners’ current needs in tight market conditions. The first order has already been placed with a Chinese shipyard.

SDARI and DNV GL have once again in collaboration applied combined and complementary expertise to deliver a new design in the Green Dolphin series. The Green Dolphin 575 is a 190m-long Common Structural Rules (CSR) compliant Handymax bulk carrier with five cargo holds. It is available in single-hull standard or double-hull (open hatch) configurations.

Backed up by SDARI and DNV GL’s long history and experience within the bulk carrier segment, the choice of ship size is based on extensive market analysis together with input from many ship owners and ship operators. Ship-owner and ship-operator input has also been considered when selecting design characteristics and design options.

Like the Green Dolphin 38, the Green Dolphin 575 aims to be fuel and energy efficient, robust and reliable, operationally flexible and able to meet current and future environmental regulations. New for this project is that the hull’s performance in waves has been addressed through model testing and numerical calculations of the added resistance in a given trade route. An operating profile consisting of full load and ballast conditions at service and slow-steaming speeds was evaluated.

The engine configuration and emission reduction technologies have been carefully evaluated. The Green Dolphin 575 is fitted with an efficient Tier II long-stroke low-speed main engine and a large-diameter slow-rotating propeller. It is further designed to comply with current and future expected local and global emission regulations, such as those relevant for IMO Tier III, Emission Control Areas (ECAs) and California and EU ports, through different alternatives: a switch to low-sulphur fuels,the installation of exhaust-gas cleaning systems or dual-fuel operation with LNG.