The reasons of boilers, tubes failures and solution suggestions

Power Plants have a big importance for transforming fossil resources existing in our country into electrical energy since using electricity in the world is increasing continously. For total production of electricity ,with lignite ones are more important than other power plants. One of the biggest defect cutting off production of electricity is boiler tubes failures. In this study, reasons of the tubes failures which cause energy interruption had been researched. Furthermore, for Seyitomer Power Plant, cost of this issue had been calculated. Boiler tubes failures which cause big production losts and negative effect of central life are happened due to corrosion occured by oxygen, hydrogen damage, acid aggression, tension crack, interior pollution, over heating with short and long time period, and mechanic errosion. This problems make double cost a current issue. Both changing tubes costs and lost energy costs problems are seen on the changing time. The main reasons of tubes failures at Seyitomer Power Plant are corrosion occured by ash, high heat, welding mistakes, and interior pollution. The biggest reason of the corrosion occured by ash is that coal used at this central has high ash ratio.Key Words : Power Plant, Tube Failure, Ash corrosion