Aalborg Energie Technik a/s (AET) Biomass Combined Heat and Power Plant
A major benefit from building the power plant was to eliminate the waste wood, dust and other excess biomass, which is produced daily at the sawmill and the factory for insulation.
The plant has an annual fuel input of 53,000 tons of wood chips, wood waste, and demolition wood.
The plant was completed and commissioned in 2004 and supplied within 15 months. In 2012, the whole CHP plant operated 8472 hours and had an availability of approx. 97%.
In 2010, Schneider invested in a factory producing insulation material based on wood fibre and this factory required additional steam and hot air on a 24/7 basis.
AET designed the concept for process integration and energy optimisation in order to be able to supply the extra energy required. The existing CHP plant was retrofitted with an extra backpressure steam turbine to supply 18 bar steam, additional extraction from existing turbines (at 1,6 bar), extraction of hot air from ACC and additional air heaters in the flue gas stream.
AET performed the engineering for the full concept and retrofitted the existing CHP plant as well as upgrading of the PLC control system and SCADA.
As turnkey supplier, AET designed, supplied, constructed and commissioned the following:
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