Year: 2017
Type: article
Abstract: This paper is about the design of a turbine for a turbo-solenoid system which is an innovative patented system.Turbo solenoid system is a newly developed, self-sufficient system, which can be used for flow control automation.Thanks to its self-sufficiency, flow control can be performed without any cables for energy supplying or control.In a turbo-solenoid system, turbine is certainly the most important element.Therefore the main aim of this paper is, design of a suitable in-pipe turbine for turbo solenoid system by using CFD analysis.In this context, different types of turbines; Darrieus, Gorlov and Lucid® which are suitable for in-pipe applications have been examined.In the CFD analysis, beside turbine type, also the effect of the twisting angle and aerofoil profile on the turbine performance was investigated.As a result of the analysis carried out for same dimension turbines with NACA0018 profile, it is found that Lucid® turbine producesthe highest torque value but also causesthe highest pressure drop in pipe.On the other hand, 10° twisted Gorlov turbine produce 30.35% less torque than Lucid® turbine but against that, its pressure drop penalty isalso 54.94% less.The effect of the aerofoil profile was investigated for two Darrieus turbine profiles (NACA0021and NACA0015).As a result of this comparison, it is revealed that NACA0021aerofoil produces 1.89% less torque compared to NACA0018 but causes 2.89% more pressure drop, and NACA0015aerofoil produces 5.24% higher torque compared to NACA0018 but causes 1.35% more pressure drop.On the investigation on blade twisting angle effect, 20° twisted Gorlov turbine has been studied.As a result, it is found that 20° twisted Gorlov turbine produces 18.13% higher torque and 4.12% less pressure drop than 10° twisted Gorlov turbine.Finally 20° twisted Gorlov turbine with NACA0015 aerofoil has been studied and it is revealed that only by %4.47 less torque production and %54.40 less pressure drop, compared to Lucid® turbine, 20° twisted Gorlov turbine with NACA0015 aerofoil shows the best performancewith respect to all studied turbines.
Institution: Istanbul Technical University
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2609237487