Page 59: of Maritime Reporter Magazine (September 2023)
Marine Design Edition
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In the Shipyard
Latest Deliveries, Contracts and Designs
Kirby Christens Hybrid
Electric Inland Towboat
Image courtesy SHI, MISC
SHI, MISC Develop Floating
CO2 Storage Unit
Samsung Heavy Industries received basic certi? cation for a ? oating CO2 storage unit (FCSU) from DNV. The
FCSU, jointly developed by Samsung Heavy Industries
Photo courtesy Corvus Energy and MISC, is 330 x 64m, and has a high-pressure tank capacity that can store 100,000 cu. m. of lique? ed CO2 he US' ? rst plug-in hybrid electric inland towing ves- at -50 degrees Celsius or less. The FCSU is designed to sel was christened at a ceremony in Houston: Kirby be deployed across multiple depleted oil and gas ? elds
TInland Marine's Green Diamond will be time char- offshore that have been earmarked as potential CO2 stor- tered by Shell Trading (US) Company, which will use the ves- age sites.
sel to push barges throughout the Houston port region. Ac- cording to Kirby, the vessel can achieve an estimated 80% reduction in fuel use and related emissions.
LNG Dual-Fuel VLCC for Shell “We are excited to be the ? rst to market with a plug-in hy-
AET delivered its newest vessel, the ? rst of three brid inland towing vessel,” said Christian O’Neil, president 300,000-dwt Very Large Crude Carrier (VLCC) pow- of Kirby Inland Marine, a subsidiary of Houston-based Kirby ered by dual-fuel lique? ed natural gas (LNG) engines,
Corporation. Built by San Jac Marine, Kirby’s shipyard in on long-term charter to Shell Tankers (Singapore) Pri-
Channelview, Texas, Another Kirby company Stewart & Ste- vate Limited. The Malaysian-? agged Eagle Vellore was venson Manufacturing Technologies, designed and installed named at a ceremony at the MMHE Pasir Gudang yard.
the power management, control and propulsion systems.
Built by Hanwha Ocean (formerly Daewoo Shipbuild-
Propulsion is provided by two 575 KW Danfoss electric mo- ing & Marine Engineering) in Geoje, South Korea, the tors that can be driven either by the Corvus Orca series battery ship is classi? ed by Lloyd’s Register.
system, which provides 1243 KWH of power, or, if needed,
Eagle Vellore’s two sister vessels are currently under onboard Caterpillar generators.
construction by Hanwha Ocean and due to be delivered
A Shell-owned Zinus charging system will be used for later this year on long-term charter to Shell Tankers (Sin- dockside charging of the battery system, allowing the vessel gapore) Private Limited. The three ships are designed to complete trips within the Houston area without using its with optimized hull forms and propellers, wake improve- generators, Kirby said. Shell Energy Solutions will provide ment ducts and rudder bulbs to further improve vessel’s electrical power matched 100% by Green-e certi? ed renew- energy ef? ciency. able energy certi? cates to charge the vessel’s battery system.
According to Kirby’s modeling, when operating on shore supplied power, the fuel use can be reduced by almost 80%, resulting in an estimated 88-95% reduction in emissions of ni- trous oxides, carbon monoxide and hydrocarbons. Engine run time can be reduced between 93 and 98% compared to a con- ventional inland towing vessel, Kirby said. When in hybrid mode with the generators running, the towboat is expected to have an estimated 27% reduction in emissions compared to a conventional towing vessel, the company added.
Photo courtesy AET www.marinelink.com 59
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