Our first combustion system dates back to the 1950’s and had a 2 megawatt water-cooled inclined grate for biomass firing. Thanks to our experience with in-house water circulation, the combustion system was integrated into the boiler’s natural circulation to achieve optimal cooling of all components exposed to high temperatures.
Since the first unit, many combustion systems have been manufactured with firing capacities of up to 64 megawatts.
In case one of ERK’s own combustion systems is not ideally suited for your project, we can recommend one of our licensees, as nearly every combustion system available on the market is covered by our licensee network. This also applies to the reciprocating grates, vibrating grates, circulating fluidised beds and gasification. This combined know-how places ERK among the leading fluidised bed technology provider, as independently verified.
Based on our experience with combustion systems ERK has developed a bubbling fluidised bed (BFB) technology capable of burning biomass and waste feedstocks, thereby achieving high fuel burnout, low NOx emissions and low part-load operation.
The combustion system is fully integrated into the boiler and can be preassembled in the workshop to minimise site work. Some units were transported to site fully assembled.
To broaden our BFB portfolio ERK has partnered with Alera on the TwinFluid® technology. TwinFluid® is complementary as it allows the use of multiple fuels, such as coal with biomass, and waste materials, such as RDF, sludges and chicken litter.
The technology permits very compact boiler systems and is based on a modular design philosophy, which enables a simple system scale up to 200 MWth.
Fuels
| System suitable for
| Working Fluids
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Our experience with water-cooled inclined grates goes back decades and the technology has proven to be effective for many biomass and coal feedstocks. As the name indicates, the grate is water-cooled and the water circulation is incorporated into the boiler’s water circulation. The grate is a membrane wall construction with air nozzles for primary air supply. The angle of the grate is adapted to the fuel specification. Until now, all installations had a fixed grate angle and we are now commercializing an improved version where we can adjust the grate angle during operation to use a variety of fuels.
Fuels
| System suitable for
| Working Fluids
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