Fuel Change-over

Changing fuel from DO to HFO 



A fuel change-over from DO to HFO can be performed when the engine has been put on load and the normal operating temperatures have been reached.
1.  Start up the HFO supply system, if not already in operation.
1.1  Check that the tank heating and the trace heating are activated.
1.2  Open the inlet and outlet valves of the HFO tanks as required.
1.3  Start the fuel separation and transfer system.
1.4  Check the level in the HFO day tank. Also check that the fuel temperature in the tank is correct.
1.5  Start the HFO feeder.

2.  Check that the trace heating in the fuel circulation system is activated.
3. Check that all valves in the fuel circulation system are in the correct positions. Make sure that the fuel heater is not bypassed.
4. Push the HFO selection button on the control panel or give a fuel change-over. The fuel selection valve turns to the HFO position.
5. If no engines are running on DO, the DO feeder may be stopped.

Fuel change over valve
Fuel change over valve
Changing fuel from HFO to DO

A fuel change-over from HFO to DO is normally performed when the engine is to be shut down and the fuel system should be flushed with DO.

1.  Start the LFO supply system, if not already in operation.
1.1  Check the level in the DO tanks.
1.2  Check that all valves are in the correct positions. The outlet valves of the tanks must be open.
1.3  Start the DO transfer pump.
1.4  Start the DO feeder.

2. Push the DO selection button on the control panel or give a fuel change-over order. The fuel selection valve turns to the DO position.

3. Check that the valves by the return fuel cooler are in the correct positions. Also make sure that the cooling water circuit of the heat exchanger is properly filled and vented. During prolonged operation on DO, the fuel cooler must be in operation to prevent overheating.

4. If no engines are running on HFO, the HFO feeder may be stopped. The fuel separators may be kept in operation as required, in order to fill the HFO day tank with treated fuel. Make sure that the trace heating if activated if the circulation is stopped in a system filled with HFO.
Share on Google Plus

About shaikat

This is a short description in the author block about the author. You edit it by entering text in the "Biographical Info" field in the user admin panel.

2 comments:

  1. Nice share...good information . have a good job !didi ,kizi

    ReplyDelete

Related Posts Plugin for WordPress, Blogger...

Featured Post

PID CONTROLLER 3-WAY TEMPERATURE CONTROL VALVE

A proportional-integral-derivative controller ( PID controller ) is a control loop feedback mechanism used in power and industrial con...

RECENT POSTS

Recent Posts Widget