marathon® burner courier 01/2019

Premium marathon ® combustion systems in worldwide operation… Installation example Netherlands Optimization and plant retrofitting by LOW-NO x burner technology For many decades, the utility company UNIPER has supplied electricity and heat to customers in Belgium and the Netherlands. In order to ensure a secure and climate-friendly district heating supply in the future, two plants of the operator were modernized at the sites Den Haag and Leiden last year. A total of 14 modern LOW-NO X marathon ® gas burners M 10003 ARZ in DUObloc version with a burner output of 8,3 MW to 12 MW each were retrofitted to 8 existing boilers. All burners are equipped with internal exhaust gas recirculation ARZ and external exhaust gas recirculation ARF . This combination allows remarkably low NO x emissions to be realized. In addition, all burners were supplied in high-tech version with oxygen control oxygen . The two plants now ensure reliable, efficient and with a NO x value of < 60 mg/Nm³ very cleanly for heat in the district heating network of Den Haag. The plant conversion was successfully carried out by our sales and service partner dreizler ® benelux . One focus in both projects was the safe undercut below the emission limit values. Equally important was the precise coordination of the step-by-step conversions with the ongoing operation in order to avoid restrictions on the availability of the existing boilers. Page 4 Pure energy. Reliable. Efficient. Clean. marathon ® burner courier Technical data Burner 2 x Gas burner marathon ® M 10003.2 ARZ in DUObloc version Burner capacity → 2 x ca. 8,37 MW 12 x Gas burner marathon ® M 10003.4 ARZ in DUObloc version Burner capacity → 12 x ca. 12 MW LOW-NO x with internal exhaust gas recirculation ARZ and external exhaust gas recirculation ARF high-tech version with oxygen control oxygen NO x < 60 mg/Nm 3 Boiler 2 x three-pass boiler Boiler capacity 2 x 7,8 MW Bronswerk FHVT 7.8, 120°C x 16 bar 6 x Double flame tube boiler Boiler capacity 6 x 22 MW Babcock Euronox, 120° x 16 bar We thank our partner dreizler ® benelux and all involved for the excellent cooperation.