Alfa Laval DuroShell increases efficiency for French power plant Combined-cycle power plant, France Case story A 4% increase in overall plant effi- ciency was the result when a French energy company installed Alfa Laval DuroShell as a boiler feedwater preheater in its combined-cycle power plant in northern France. A changing energy market The power plant has an output of close to 800 MW, making it one of the largest combined-cycle plants in France. The plant was initially a baseload plant, but due to changes in the European energy market, company management decided to start running it as a peaking plant instead. Before switching to peaking operation, the plant was revamped in order to increase its efficiency. Boiler feedwater preheater One part of the revamp was to install

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