Research Information System
Thesis Type: Postgraduate
Institution Of The Thesis: Gazi Üniversitesi, Fen Bilimleri Enstitüsü, Turkey
Approval Date: 2017
Student: MURAT KENAN KAYACAN
Supervisor: MELİH OKUR
Abstract:Unmanned aerial vehicles and hybrid cars are required to have high efficiency and power-to-weight ratio engines at small and medium scale power outputs, which are currently being studied extensively. Rotary engines, such as the Wankel engine have the potential to provide these desired characteristics. The Pars engine, which is a rotary engine consisting of compressor combustion chamber and turbine, is similar to the single vane rotary refrigerant compressor and expander used in the industry. In this study, a new two-stage turbine was designed in place of the Pars turbine, which has a rotary valve system. Expansion ratio, eccentricity ratio, volume ratio, phase difference angle were determined as design parameters and theoretical moment values were obtained. In the theoretical calculations made, a torque increase of 47% was obtained for equal inlet time angles relative to the rotary valve system in the two-stage turbine. In addition, experimental data of the three prototypes produced were compared with the theoretical calculations. For the third prototype tested, a maximum of 50% agreement was obtained between the calculated average torque and the experimental moment values.