A DPF system that can be maintained by the crew



DPF systems traditionally have to be cleaned and serviced by external engineers. But not ours. Our unique DPF system was designed for easy maintenance by the ship’s own crew members, providing a new level of convenience.

Better for the crew to do it

A DPF system that can be maintained by the crew is far more efficient.

✓ No unexpected and unwelcome delays while the system is serviced
✓ No need to call in an external engineer – it can be done by the crew
✓ The system can be serviced anywhere, even at sea.

It is generally considered undesirable to have external crew on board the ship in the presence of the owner of said ship, or during a charter. After all… Sailing and docking must continue as planned. The service of technical installations should not interfere with the ship’s schedule.

The easy serviceability offered by Emigreen® allows for this kind of flexibility. Maintenance becomes part of the crew’s daily routine, at a time that suits the yacht’s schedule.

Designed for easy maintenance

Our DPF system is designed for easy servicing by the crew. The soot filters are easy to access and can be cleaned by anyone.

The procedure is simple and can be performed by any crew member.

How it works.

1 – Decide when

DPF regeneration cycles are monitored by the control and monitoring system. When the regeneration efficiency of the DPF system falls below a certain level, the system alerts the crew. The crew can then arrange to clean the ash from the filter elements as soon as is convenient.

2 – Allow the engine to cool

Only the engine with the filter that requires attention needs to cool. If it is not the main engine, the ship can keep sailing. The crew start forced regeneration of the DPF system to convert the soot accumulated in the filter into ash. Then they wait for the engine and its exhaust system to cool. Depending on the type of system, this usually takes less than a day.

3 – Open the access hatch

Through the access hatch the crew can access the clean side of the DPF filter elements. These are easy to remove one by one.

4 – Vacuum clean with a HEPA filter

Using a vacuum cleaner with a HEPA filter, the crew extract virtually all of the ash from the filter elements. This is fast, efficient and safe.

5 – Clean with compressed air

Using compressed air, the crew blow the last traces of ash from the DPF filter into the vacuum cleaner.

6 – Install new gaskets

Once everything is clean, the crew install new gaskets under the DPF filter elements. The assemblies can then be reinstalled in their new positions.

7 – Reinstall and fire up

Once the filter elements are clean, they can be reinstalled. Our instructions explain the order in which the elements need to be reinstalled to ensure the best result.  Since the outer elements trap less soot, the order in which the elements are installed determines how the soot is distributed. The DPF system is now ready for further use!

Convenience spelled out in figures:

  • The system can be cleaned by one or two crew members
  • It takes about two hours to clean a system for a 250 kW to 500 kW engine
  • The system needs to be cleaned after every 2000 to 4000 hours of operation, depending on engine use.

Convenience that delivers added luxury

The convenience of an Emigreen® DPF system makes the experience of owning a yacht even more luxurious. And our custom-designed systems can be installed both in new yachts and as retrofit.

Just a premium experience for premium clients.

About the author

Jelle Westerhof is sales manager at Emigreen® and applies our industry-leading solutions to the projects of our clients. Feel free to reach out to Jelle for feedback on this article, for questions and for a free consultation.