The BOS Emulsified Fuel System improves combustion efficiency by producing stable, water-in-fuel emulsions to improve injector fuel atomization.
The key success factor in emulsified fuel is the ability to produce and maintain the optimum 10% water as water-in-fuel particle sizes of 2-8 microns. This is achieved with the patented BOS Emulsifier that, unlike other systems in the market, has no moving, cavitating or vibrating parts. The performance of the BOS EFS has been verified by ship owners, classification societies and engine manufacturer Wärtsilä. The system can be operated using multi-fuels including HFO, IFO, MDO, MGO, ULSFO and the new ECA. There is no need forany chemical additives.
THE SYSTEM COMES IN TWO MODULES: THE WATER CONTROLLER MODULE AND THE EMULSIFIER MODULE
EASY AND TROUBLE-FREE OPERATION
The BOS Emulsified Fuel System is designed to be easy to operate. It is fully automated and fail safe with safety interlocks built in.
In the event of an alarm being triggered, the system will automatically switch off the HP water pump and the auto changeover valves will switch back to normal operation and bypass the emulsifier (see the picture below on the left).
Touch screen control panel
The BOS EFS control panel has an intuitive menu, making it simple for the user to set up the system. Reports, historical trends and logs are also provided by the controller. The system can be integrated into the ship’s engine room control system. There is password protection for the key settings.
EASY AND FAST INSTALLATION
Installation of the EFS does not require the ship to be in dry dock. The basic components of the system can be retrofitted while the ship is alongside in port transferring cargo or passengers. Three by-pass valves are fitted by replacing the small section of the fuel oil pipe between the circulation pump and fuel heater with a prefebricated length. This requires that the engine be powered down, but takes only 3 to 6 hours. The remainder of the installation can then be completed after that without interrupting the ship’s operations, even while at sea if necessary.
Note: A new flow meter may be required if the existing one is not accurate enough (+/- 0,5%) and/or does not provide flow rate measurement.