CFD Investigation on The Jet-Engine Inspired Wind Turbine

Nur Shamimi Amirah Md Sunhazim Nur Shamimi Amirah Md Sunhazim,Ummikalsom Abidin Ummikalsom Abidin,Ainaa Maya Munira Ismail Ainaa Maya Munira Ismail,Fazila Mohd Zawawi Fazila Mohd Zawawi,Syahrullail Samion Syahrullail Samion,Kamarulafizam Ismail Kamarulafizam Ismail

doi:10.37934/cfdl.4.2.7280

Nur Shamimi Amirah Md Sunhazim Nur Shamimi Amirah Md Sunhazim, Ummikalsom Abidin Ummikalsom Abidin + Show 4 more

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https://doi.org/10.37934/cfdl.4.2.7280

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Abstract

The Malaysian Government has set a more ambitious target to achieve higher penetration of Renewable Energy (RE) in the Malaysian energy mix which was 31% by 2025. Compared to the penetration of solar and wind power specifically in the European region, whose sharing was more than 50% of total generation, Malaysia currently only has 2% of its energy coming from RE generation sources, which mostly was provided by solar photovoltaic. In Malaysia’s energy sources point of view, wind RE-based power generation system was foreseen a promising potential provided the technology was suitably designed for low wind conditions. Therefore, the potentiality of the Jet-Engine inspired Wind Turbine operating under low-speed wind environment by mean of Computational Fluid Dynamics (CFD) numerical approach were explored in This study. The main objectives were to develop a reliable numerical model for accessing the capability of the Jet-Engine inspired Wind Turbine and to regulate its performance with influence of curly shroud on the induced flow. The conventional shrouded Wind Turbine has been modified which consist of a stator and a rotor blade covered by curly-shaped shroud adapting the concept of Jet-Engine. A constant wind speed of 5 m/s which was the average wind speed in Malaysia, and tip speed ratio (TSR) varies from 2 to 6 were specified in the simulation. The investigation discovered that the curly-shaped shroud gave an impact to the performance of the Wind Turbine as it can be reviewed from the comparison of the power coefficient on the Jet-Engine inspired Wind Turbine with shroud and without shroud. It was found that the shrouded Wind Turbine improved the power coefficient by 8.6% which was from 0.35 to 0.38. The effect of the curly shroud was also analysed by obtained the velocity and pressure contour from the ANSYS Fluent, where there was a swirl formation at the shroud as the air mixed at different angle, which causes the pressure drop and inlet velocity increased.

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