An Overview of Solid Particle Erosion Behaviour in Thermal Power Generating Plants at High Temperature Applications

Abstract

The surface erosion of metal parts is a big problem in the engineering industry. In pulverized coal boilers power plants, erosion is the primary cause behind the emergency shutdowns, which led to huge economy & efficiency losses. The Pulverized coal burner nozzles (PCBNs) are subjected to the detrimental conditions due to degradation by solid fragments (fine-grained pulverized coal) in the air passing with high velocity through the tip of Buner nozzle and due to the high temperatures faced inside the combustion chamber. In this review paper, consolidated results of all case studies in the field of combating erosion in various steam thermal power plants are investigated. To enhance the PCBNs material resistance properties against high-temperature degradation, the feasibility of improvement and use of new advance materials, single or multilayer coatings, resistant to degradation can be utilized.