Experimental and Numerical Analysis of Turbine Performance Improvement by Changing Turbine Blade Inlet Angle

The use of Turbocharger for increasing incoming air density to the motor and thus increasing its power is a common method. Due to the variation of the engines in volume, the number of cylinders and the power, the turbocharger for a particular engine may not completely match the motor. This paper tries to improve the turbine performance by changing the angle of the turbine blade toward the selective compressor turbocharger and the 3-D flow simulation. The results show that the variation of the angle of the turbine at a value of about 4.7 degrees improves the turbine performance by about 18 %. This improvement of performance, especially the power of the turbine at the low speed of the motor, is very valuable when the energy from the engine is low. In order to validate, the engine and turbocharger set are tested on the test platform, and in different cycles of the motor, the performance parameters of the turbocharger turbine are measured and compared with the simulation results.