The Delfzijl energy from waste plant, the Netherlands, was built in collaboration with EON-Germany next to the North Sea, 50 metres away from the beach. Its location meant that both noise reduction as well as the requirements for explosion relief to the boiler room were important.
According to TRD 403 (the technical rules for steam boilers in Germany), 10 % of the ground surface area of the boiler house has to have explosion relief flaps installed. Colt managed to meet this requirement using hinged wall mounted FCO ventilators as explosion flaps while using EuroCO, Weatherlite and Meteor ventilators mounted on the roof for climate and smoke control. The natural ventilators also managed to allow a 14dB noise reduction.
For this project it took Colt only 8 weeks including a technical layout to provide a solution for the customer.