Numerical Investigation on Particle Erosion Characteristics of the Elbow Pipe in Gas-Steam Ejection Power System

In gas-steam ejection power systems, the Al2O3 particles in combustion products can cause severe erosion on downstream elbow pipe. To calculate particle erosion, a modelling approach is developed by combining discrete phase model with flow-thermal coupling and introducing wall temperature parameters into model. Furthermore, influence of size, total pressure, mass flow rate was investigated. The results show that high depth be expressed as product time integral factor at room 1.63–3.57 times under different sizes. With increase maximum position tends to inlet bend, its value increases first then decreases peak 0.418 mm diameter 100 µm. decrease pressure reduces reducing velocity. affects gas-particle which, may change greatly, especially when below 40