Numerical Simulation of a Compressed Air Driven Tesla Turbine

2014 ◽  
Author(s):  
M. Salman Siddiqui ◽  
Humza Ahmed ◽  
Shaheer Ahmed
Keyword(s):  
Fluid Dynamics ◽  
Inflection Point ◽  
Initial Step ◽  
Compressed Air ◽  
Working Fluid ◽  
Dynamics Analysis ◽  
Viable Option ◽  
Computational Fluid Dynamics Analysis ◽  
Flow Configurations ◽  
2D And 3D

This paper presents the Computational Fluid Dynamics analysis of a Tesla bladeless turbine using compressed air as the working fluid. Multiple flow configurations are analyzed using both Laminar and the turbulent behaviors. The loading coefficient and the efficiency of turbines is evaluated for both the 2D and 3D cases. Multiples disc is a viable option but it is been observed they result in loss in performance for the laminar and turbulent simulations. In addition the inflection point of the laminar flow vanishes in the turbulent flow; the work presented is an initial step towards the realization of Tesla turbine.

scholarly journals Turbine Design for Low Heat Organic Rankine Cycle Power Generation using Renewable Energy Sources

2018 ◽  
Vol 164 ◽  
pp. 01012 ◽  
Author(s):  
Herry Susanto ◽  
Kamaruddin Abdullah ◽  
Aep Saepul Uyun ◽  
Syukri Muhammad Nur ◽  
Teuku Meurah Indra Mahlia
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Shear Stress ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Working Fluid ◽  
Dynamics Analysis ◽  
Real Gas ◽  
Radial Turbine ◽  
Computational Fluid Dynamics Analysis

In recent years, due to its feasibility and reliability, the organic rankine cycle has become a widespread concern and is the subject of research. In the organic rankine cycle system, the radial turbine component is a highly influential component of the high low performance resulting. This paper discusses the design of radial turbines for organic rankine cycle systems. The design stage consists of preliminary design and detail design with parametric methods on the working fluid R22 to determine the geometry and initial estimation of the performance of the radial turbine. After that, a numerical study of the fluid flow region in the radial turbine with R22 as the working fluid was performed. The analysis was performed using computational fluid dynamics of Autodesk Computational Fluid Dynamics Motion software on two models of real gas, k-epsilon and shear stress transport. From the results of this analysis, there is pressure, velocity and temperature distribution along the radial turbine blades and estimated performance under various operating conditions. Comparison between parametric and computational fluid dynamics analysis results show different performance. The difference is due to the computational fluid dynamics analysis already involving the real gas shear stress transport model.

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