DPF-E system

Diesel Particulate Filter with electrical regeneration

This system has been specifically developed for use on generators on mega yachts and for inland navigation and stationary applications.

The DPF-E system consists of a housing, diesel particle filters, bypass valve, electric heater and controller. The heater controller can be supplied with both an on/off soft starter or as a modulating model. The control has standard data logging and extensive diagnostics (on-board diagnostics; OBD). Telemonitoring is offered as an option. We can offer remote service with this. The system replaces a silencer to a limited extent and will provide sound attenuation between 20 and 25 dB(A) as standard. 

Options

The DPF-E system can be combined with an SCR-S system. The SCR system will be installed behind the DPF-E system within this context.

The following options can be supplied:

  1. Housing in stainless steel or standard steel
  2. With additional sound attenuation
  3. In-line or perpendicular intake and exhaust
  4. Various coating types for diesel particulate filters
  5. On/off (soft starter) or modulating control
  6. Port mode
  7. Motor load signal through J1939 or analogue
  8. External communication through Mod or CAN bus.

DPF-E system overview

Diesel Particle Filter system

The maximum allowed quantity of sulphur in the fuel will depend on the selected catalytic coating, but may not be higher than 1000 ppm or 0.1%. This coating ensures that the caught particulates oxidise at a lower temperature with oxygen. Without this coating, particulates would, after all, only oxidize or burn at approximately 600 °C. The type of catalytic coating is aligned with the engine type, load profile and the required hydrocarbon reduction by our engineers.

The temperature of the exhaust gases is usually insufficient to post-burn the particulates in the filters completely because generators are often loaded relatively low. For smaller generators up to approx. 200 kW, using an electric heater to regularly increase the temperature of the exhaust gases is an interesting solution from a cost price perspective when compared to an SFB burner system that is used for the DPF-S system. 

More information can be found on the Tech Talk page.

Achievable emission reductions

Component 
Acronym
Reduction
Nitrogen oxides NOx 0%
Hydrocarbons HC up to 80%
Carbon monoxide CO  up to 80% 
Fine dust or particulates PM10  > 95%
Noise    20-25 dB(A) 

 

More information on emission technology can be found on the Tech Talk page

 

DPF-E diagram

 

 

Contact Solfic for more information about this system.

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