In-depth | SEPARATORS The eagle flies high
GEA’s Westfalia Separator eagleclass was unveiled to the commercial maritime market for the first time at SMM 2008 exhibition in Hamburg.
T
he new generation of mineral oil separators will eventually replace the existing D-type that is currently
in service. The eagleclass was created to be more energy efficient than its counterpart. The system permits a throughput capacity of up to 80m3
/h due to its high g-force,
which is far greater than the current OSD 60 that has a limit of 35m3
/h.
The performance of the eagleclass has surpassed the D-class because fewer separators are now needed for the permanent fuel oil processing. GEA Westfalia Separator has suggested that it is now possible for two OSE 120 separators to replace three OSD 60 machines. This results in a considerable reduction in power consumption, space required, weight and overall investment cost. The Westfalia Separator eagleclass has six basic types of separator; OSE5, OSE 10, OSE 20, OSE 40, OSE 80 and OSE 120, instead of the previous four basic OSD types. GEA Westfalia Separator Systems has designed the separators to be more compact, light, and more energy-efficient and with fewer wear parts. A new sensor technology system, known as Unitrolplus, further minimises the oil losses made during ‘desludging’.
Control and monitoring The Unitrolplus automatic monitoring and control system works by controlling
The new-generation eagleclass mineral oil separator from Westfalia Separator (credit: GEA Westfalia Separator).
temperature and steam through sensors. It is located on top of the separator and is capable of controlling heavy and severely contaminated fuels. Unitrolplus is used for the exact dosing of displacement water for the last oil displacement prior to desludging, which will in turn result in fewer oil losses. Depending on how much water content
is in the oil, the separator automatically adjusts to function in either purifier or clarifier mode. Also no regulating ring is required for the monitoring process.
Visco Booster Unit with pump components (credit: GEA Westfalia Separator).
16
Generation As well as the mineral oil separator system, GEA Westfalia Separator has extended
its line to include a newly developed fresh water generator, with a purpose to provide shipping companies and shipyards with a further module for the engineroom from a single source. The model, the SeaWater Distiller, has a capacity of between 10 and 30t/d. The SeaWater Distiller is configured as a plate heat exchanger and works according to the evaporator-condenser principle. No additional thermal energy supply is necessary for fresh water generation with the SeaWater Distiller. The Visco Booster Unit treats fuel oil to
drive diesel engines and is already compact, but Westfalia Separator has a newly designed pump module that is purported
Ship & Boat International November/December 2008
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