Norway-based Høglund Gas Solutions has signed a contract with oilfield services provider Halliburton to provide a turnkey LNG retrofit of the 5932-dwt RoRo – combination carrier Hannah Kristina, Offshore Energy.
Reducing the carbon footprint
Hannah Kristina, owned by Base Marine Norway can operate dry bulk, wet bulk and general cargo. She vessel is owned by Base Marine Norway AS and under technical management by Larvik Shipping AS while Halliburton is the end-charterer.
The project aims to improve the vessel’s environmental footprint by converting the marine diesel oil-fuelled vessel into dual-fuel by supplying an LNG Fuel Gas Supply System (FGSS) alongside an upgrade with shore power connection.
The project, led by Høglund, will require extensive collaboration between numerous stakeholders, including naval architects, engineering teams, a retrofit shipyard, various suppliers, class society flag state and the vessel owners and operators. Høglund will therefore collaborate with long-time partners HB Hunte Engineering GmbH and Fiskerstrand Verft AS for the naval architecture and shipyard elements of the project, respectively. The entire project will be classed by DNV.
The scope under the contract consists of a 250-cbm capacity FGSS with a dedicated gas control and safety system to serve the already installed dual-fuel M/E with natural gas.
Innovating features
For the shore-power upgrade that will be used to power the vessel while berthing and to charge the existing Energy Storage System (ESS), Høglund will supply and install a package consisting of shore connection cabinets of 690V / 600kVA compatible with shore power supply.
Both systems will be integrated into the existing Automation System (IAS), Power Management System (PMS) and ESS control systems of the vessel which were delivered and installed by Høglund in 2018.
In order to implement the appropriate safety measures following the requirements of the IGF-Code and improve the safety credentials of the Hannah Kristina, Høglund will be combining its extensive knowledge in gas, power and automation solutions with HB Hunte’s outstanding expertise in naval engineering to perform further modifications on the vessel.
These will include the adjustment of the mooring arrangement in the LNG tank area and an upgrade to the ventilation system, among other conversions. The delivery of the retrofitted vessel is expected to take place in March 2022.
The goal of this project is to upgrade a 20-year-old vessel with modern environmental credentials. With the use of LNG and battery power, the vessel will significantly reduce its CO2 and NOx emissions both while at sea and during harbour stays, Høglund said in its statement.
Supporting the project is the Norwegian NOx Fund, a partnership between the Norwegian government and the private sector committed to reducing NOx emissions in Norway.
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Source: Offshore Energy
