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World Journal of Engineering Research and Technology

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Engineering Research and Technology

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

ISSN 2454-695X

Impact Factor : 7.029

ICV : 79.45

WJERT Citation

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Abstract

OPTIMIZATION OF NOZZLE INLET ANGLE AND WHEEL DIAMETER OF A PORTABLE MINI-STEAM IMPULSE TURBINE FOR DOMESTIC ELECTRICITY GENERATION USING TAGUCHI DESIGN AND RSM APPROACH

Benjamin Ufuoma Oreko and Stanley Okiy*

ABSTRACT

This study seeks to determine a portable mini stream turbine's optimum nozzle angle and wheel diameter at a constant loss velocity. Taguchi Design and Response Surface methodology (RSM) was utilized for the optimization. A theoretical computational value obtained for a steam generator (boiler) output to the turbine, at a steam of pressure 15bar, velocity of 115m/s, outlet temperature of 250℃ and mass flow rate of 0.25kg/s, within a range of 120-200rpm to generate electric power output. The results predicted a power output optimum value of 125.58 watts at a turbine wheel diameter of 0.24 m and nozzle inlet angle of 15° with a constant loss velocity of 0.85 using Taguchidesign and RSM. It was observed that the optimum power output could depend on the efficiency of the jet of steam impinging on the turbine blades and turbine wheel diameter.

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