Abstract—Microturbines can be utilized in refrigerator, generator, air drier, etc., Micro turbine being small in size as compared to large turbine, such that less weight which reflects on pressure ratio, low cost and easy maintenance. Design and analyze of the micro turbine compressor blade is carried out in this thesis. With different material and rotational speed, compressor blade of the micro turbine is analyzed. A 3D Structural design of microturbine generating 120 KW of output power is modeled in Solidworks. Based on the given microturbine output power, the dimensions and physical properties of the compressor blade were calculated. Titanium, Aluminium and Stainless steel alloys, this materials effect on compressor blade are found out by carrying stress and modal analysis. Microturbine systems claimed many advantages over reciprocating engine generators, such as higher power to weight ratio, low pollution and having few moving part. Microturbines have many advantages, such that it may be designed with foil bearings and aircooling operating without lubricating oil, coolants or other hazardous materials. Microturbines are quicker to respond to output power requirement and also more efficient. Microturbines also have more efficiency at low power levels than reciprocating engines. The variation of rotational speed is a representation of various operating conditions, depending on the required output. By analysis software ANSYS 12, stress and modal analysis are done.

Index Terms—Compressor blade, Microturbine, Vibrational analysis

Cite: Ajin Elias Alex and Nadeera M, "3D Modelling and Analysis of Micro Gas Turbine Compressor Blade," International Journal of Mechanical Engineering and Robotics Research, Vol.3, No.4, pp. 493-505, October 2014.