FAQ for Waste-to-Energy Plants

Why need a high level automatic combustion control?
At most WTE plants only a few very experienced operators can handle the complexities of constantly obtaining optimal operation efficiency and consider this a very demanding and troublesome task. Therefore, a high-level control system that operates the combustion system of the plant in the same way as the most experienced operator is a very attractive tool to do the work to the same standards 24 hours/day.

Why choose FuzEvent?
Dublix, with its FuzEvent High-Level control system, offers a feature to interact and operate in the process in due time and in particular when the process behaviour has shown maximum information about its previous behaviour, just like an experienced operator.

How is the FuzEvent system specified to your plant?
The typical operator interactions are described during the design meeting, and will vary from plant to plant; the main aims are to keep the operators in charge of the operation, and to use their knowledge to make their work much more efficient by reducing routine operator interactions.

What are the achievements?
Typically, a Dublix FuzEvent system obtains 95% to 98% fully automatic control of all connected set-points. As a result, an overall increased efficiency of the plant is established with:

  • More energy generated,
  • Less residuals generated,
  • Higher quality of the residuals,
  • Less wear on the mechanical parts,
  • Less environmental load from the WtE plant,
  • Plant availability increased,
  • More stable steam production; typically 20-40% reduction in the variation of the steam flow resulting in 3-5% increase of steam flow set-point,
  • More waste throughput; typically 5% increase with better burn out quality,
  • Less violation of the 850°C limit,
  • Better control of combustion emissions (CO, NOx, etc), with higher quality of bottom ash,
  • Improvement of acid emissions: lime consumption and amount of fly ash reduced.

What if some changes need to be made after the installation of the FuzEvent?
Compared to most automatic combustion control systems, FuzEvent is easily modified to cope with the changing environment and to adapt new ideas for more efficient operation at the plant. The system does not contain a black box philosophy nor does it hide its functions. Furthermore, Dublix offers a Service Contract to provide you with assistance to carry out continuous optimization and updates on the software.

What if some new staff is recruited that does not know how to operate FuzEvent?
Dublix also offers in its Service Contract regular training sessions by specialists for any new staff at the plant.

Is it necessary to modify the existing control system on the plant when a FuzEvent system is installed?
No modification is needed in the existing control system. Exchanges of process data and set points adjustments are done through a standard communication protocol. A watch dog function is implemented in order to keep track of a well-functioning data exchange.

Will the existent control system work if the FuzEvent system is switched off?
The FuzEvent system can always be switched off by the operators for example during test of new functions or in special situations. In case of communication problem (between FuzEvent and the existing control system), the FuzEvent system will automatically be switched off. After the switch off of FuzEvent, the plant will then operate as before the FuzEvent system was implemented, e.g. based on the existing control system functions.