ISWA World Congress 2007

Increased WtE plant efficiency by High-Level Control can optimize the operation with typical 3-5% higher efficiency in steam production.

Dublix Engineering A/S has been invited to present a paper at the ISWA World Congress 2007. The event takes place 24-27 September 2007 in Amsterdam, the subject is high level control; please refer to the programm of the conference. (www.ISWA2007.org)

The key to higher efficiency at WtE plants is a more stable operation

The key to an increased efficiency of Waste-to-Energy (WtE) plants is to obtain more stable operation, independent of the actual waste quality, the boiler cleaning status and other bottlenecks appearing during the various stages of the WtE plant operation. The goal is to obtain the highest possible energy output and at the same time to minimize the environmental impact. At most WtE plants some few very experienced operators can handle this complex task and obtain optimal operation; most operators consider it a very demanding and troublesome activity to obtain a constant high efficiency in the operation.

Different technology suppliers keep their optimization strategy a proprietary secret

A WtE plant consists of a complex of different technologies from independent suppliers, each keeping its own specialties about optimal operation as proprietary know-how in a “black box” setup. The WtE plants are therefore left with limited options for keeping the overall plant optimized. A High-Level control scheme is an efficient way of handling this situation.

Experience show that WtE combustion control is a complicated matter

During more than 30 years many initiatives have been made in order to operate the WtE plants more efficiently, some of which based on automatic combustion control and other related initiatives handling complex control objectives. Unfortunately only a few of these systems cope with the full complex of the problems. Very often these systems are just another “black box” hiding the optimization activities from the operator. Very often these optimization initiatives are expensive and require extra instrumentation which is difficult to keep in operation due to the rough environment and the constantly changing situation at the WtE plants.

The FuzEvent system is implemented fast with no extra instrumentation at the plant, typical improvements are 3-5% more waste capacity at the plant.

The FuzEvent technology is based on more than 25 years experience from large industries as, Pulp and Paper industry, Cement Industry and many applications in the WtE business area. The fundamental idea of a FuzEvent system is to use the existing operation expertise available at the plant as the starting point for the implementation process.

The design team behind the FuzEvent product has extensive experience within WtE plants and conduct feasibility studies as the qualification method to define performance guarantees for the optimization; target is typical 3-5% more capacity at the WtE plants due to a more stable operation.

FuzEvent is normally integrated into the existing DCS/Control System or via a standard communication interface on an external PC. FuzEvent is in on-line control of the process typical more than 98% of the time applying the same rules in the operation as the most experienced operator. The FuzEvent system does not require any extra or advanced instrumentation at the plant, the existing instruments will be evaluated for their function and are normally sufficient for the FuzEvent system.

The implementation is fast, normally completed within 3-4 month after initiation of the project. The implementation method is conducted in close cooperation with the operators, specialist and management at the plant. This keeps the financial investment very low.

Meet us at the ISWA World Congress or ask for a contact before or after the congress, contact Dublix Engineering

Dublix Engineering A/S will be interested in meeting plant operators, WtE plant builders, consulting companies etc. interested in the field of optimization of Waste to Energy plants. Please contact Sales Director, Asger Danielsen before, after or at the session in Amsterdam.