Wilhelmsen Ships Service’s new, first-of-its-kind automated boiler water maintenance system constantly measures boiler water conditions and automatically doses chemicals when required. This process is usually manual, with crew testing the waters and adjusting the chemicals themselves.
Speaking at November’s Tanker, Shipping & Trade Conference in London, WSS water solutions business manager Rune Nygaard pointed out that nearly one in 10 marine boilers fail each year due to factors including poor maintenance and mismanaged water.
The system automatically measures and doses the treatment chemicals to maintain the boiler water at desired levels and automatically regulates the boiler water treatment through continuous monitoring sensors, dosing logic and automatic chemical dosing.
Mr Nygaard said: “Our system is more accurate than a manual test, and will extend the lifetime of the boiler, because if chemicals are used correctly, it will not corrode.”
At the heart of the system are four sensors per boiler, which allow the solution to autocorrect by reducing the amount of chemicals dosed to the system.
The solution sends the results to the cloud and displays the results offline on the vessel, too. It is the first boiler system to send results to the cloud, and the tailor-made desktop dashboard streams live critical boiler water information, which ship operators can access 24/7.
Wilhelmsen aims to set up a database covering all the ferry fleets using its boiler water treatment solution so that ship operators can benchmark their vessels' results against the anonymous data (using age or size of ferry, for example) to see how efficient their boilers are compared with the market average. This solution will be available for other vessel types in addition to the ferry fleet.
The boiler automation is “the beginning,” Mr Nygaard said, explaining that Wilhelmsen is keen to automate and add to the cloud more than 10 other onboard processes related to water treatment alone including cooling water, seawater intake and evaporated water treatment, in addition to solutions for oil, cleaning, refrigeration, gas and the use of ropes.
“Adding processes to the cloud helps us understand more about the processes and the data, and can help us decide whether to change parameters, such as chemical requirements,” Mr Nygaard said.
Parat Halvorsen wins new contracts
Norwegian boiler manufacture Parat Halvorsen has recently been awarded a number of contracts.
The first is for the Norwegian Coastal Administration's new multifunctional vessel OV Ryvingen. Parat Halvorsen will supply a complete MEL 350 kW electrical steam boiler with control cabinets, pumps and equipment. This will be used in oil spill response, where the oil pumped in the tank of the boat must maintain its viscosity.
This Parat boiler model can be delivered as a combined hot water/steam model, where you can use hot water for the central heating system and switch to steam in oil recovery situations.
The new environmentally friendly vessel will be built at Fitjar Mekaniske Verksted. The design was developed by Heimli Ship Design. The vessel is scheduled for delivery to the Norwegian Coastal Administration in autumn 2018.
In addition, Parat Halvorsen recently secured a contract to design and fabricate a complete, turnkey steam boiler module for the Aoka Mizu FPSO owned by Bluewater Energy Services BV.
The FPSO is being recommissioned for the Lancaster project, which is owned and operated by Hurricane Energy UK.
The module will include 2 x 3200 kW electric steam boilers based on the Parat MEL design, and will provide an additional 9.600 kg/hr of saturated steam for the FPSO marine and process systems. The shipping weight of the module is estimated to be approximately 70 tonnes.
The module is a fast-track delivery, and the lead time from PO to delivery is only 30 weeks.