Patent pending for Norse BWTS
Ulmatec Pyro and its partners, including a major Norwegian offshore shipping company, are collaborating on a new ballast water treatment system (BWTS) that costs little to run or install. A patent for the system has been lodged and now it is up for class approval.
system of heat exchangers that are grouped in pleated plates rather than as a lot of
A individual plates making
the new ballast water treatment system (BWTS) easier to clean and very cheap to install. Urcke is cautious and will not reveal
the identity of either of Ulmatec’s partners but the new system is in the process of being patented and the second partner will allow a 250m3 BWTS to be installed on one of its vessels for testing purposes this year. Even so Urcke says: “The approval
process will take one to two years”. Ulmatec’s cautious approach could
stem from the belief that its BWTS will blow the competition out of the ballast water treatment business. Essentially the Ulmatec BWTS works by heating the ballast water to temperatures in excess of 65°C, up to 100°C using waste heat from the engine exhaust and cooling systems. Filtration will be required, but the
Ulmatec BWTS does not require any chemicals or UV lights and is so simple to use that crew will not need training. Furthermore, the waste heat used to heat the ballast water can be recovered through cooling the water and used again. “At 100°C we will kill everything in
the ballast water system,” says Urcke, but he concedes that it is too early to say exactly what the installation and operational costs will be, although he says, “it will be much less than a conventional BWTS”. By using the waste heat for the
central heating system and BWTS Ulmatec says that ship operators can make substantial savings as the waste heat has no extra cost to produce once
The Naval Architect January 2012
the engine has burnt the fuel to run the vessel. “As we all know, 60-70% of
the
machinery energy consumption is waste heat at different temperature levels and just a small piece of this is normally utilised for general purposes onboard a ship. Because of this, we have started a programme for developing more
The Pyro tank closed heating system operates at 2bar and uses heat exchanges to capture waste heat energy from the engine.
Ulmatec Pyro MD Jan Petter Urcke beleives his BWTS has a very real edge.
ccording to Ulmatec managing director Jan Petter Urcke the company has designed a new
• Existing ballast water system w/ pump, valves and filters etc.
fired heaters or waste heat
• Pyro Waste Water Treatment module. (configuration of heat exchangers,
recovery units/system)
• Pyro WWT Control System, w/ Manual control, Automatic control,
log and report functionality, interface to IAS. NA
29
valves, slow flow unit, equipment f/ automatic cleaning etc.)
equipment which can utilise this ‘zero cost’ and ‘no emission’ energy. We have earlier this year successfully launched our Pyro Central Heating System with waste heat recovery management. We have sold five of these systems this year,” says Urcke. System Components.
• Heat Generators (Electric heaters, fuel
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