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Marine EGCS use Ultrasonic clamp-on flow meters to measure sea water usage
Successful partnerships with a number of scrubbing system manuafacturers has led to our involvement in over 100 installations of this environmentally significant technology. ECGS or exhaust gas cleaning systems utilise large amounts of sea water in their operation.
♦ A treatment plant to remove pollutants from the “wash” water after the scrubbing process.
♦ Sludge handling facilities – sludge removed by the wash water treatment plant must be retained onboard for disposal ashore and cannot be burned in the ship’s incinerators.
Figure: Exhaust gas cleaning system basic components
The system may be an “open” type, whereby water is taken from the sea, used for scrubbing, treated and discharged back to sea, with the natural chemical composition of the seawater being used to neutralize the results of SO2 removal. Typically open seawater systems use 45m3/MW h  for scrubbing.
Figure: Hybrid exhaust gas cleaning system closed loop operation
♦ New Regulations
January 1st 2020 is the implementation date for a significant reduction in the sulphur content of the fuel oil used by ships. The decision to implement a global sulphur cap of 0.50% mass/mass (m/m) in 2020 was taken by the International Maritime Organization (IMO), the regulatory authority for international shipping.
♦ Impact for the Shipping Industry
The IMO estimates that up to 70,000 ships may be affected by the new global IMO sulphur cap in 2020. Switching to low sulphur fuel will add significant cost running vessels. However, installing an SO2 Exhaust Gas Cleaning System will ensure efficient use of HFO and compliance with the new emissions regulations. Vessels will also remain more profitable and retain their current fuelling patterns.
♦ Clamp-on Ultrasonic Flow Meter
Our BFU-100 range of budget ultrasonic flow meters have excellent specifications but at a more affordable price than similar products making them the ideal choice for a variety of applications. Our easy to use budget ultrasonic flow meters are available for a wide variety of pipe materials in sizes from 50mm up to 700mm. We also have versions that can measure both flow and heat energy.