Innovation in Vertical Axis Hydrokinetic Turbine – Straight Blade Cascaded (VAHT-SBC) design and testing for low current speed power generation

Hantoro, Ridho; Utama, I Ketut Aria Pria; Arief, Irfan Syarif; Ismail, Abdi; Manggala, Seno Widya

doi:10.1088/1742-6596/1022/1/012023

Cited by 8 publications

(8 citation statements)

References 9 publications

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“…Upstream flow is the water current entering to the turbine that has a higher velocity of downstream flow. Vertical axis hydrokinetic turbines with straight blades expose low coefficient of power (Cp) with respect of tip speed ratio (TSR) [26]. Low flow rates such as 1.1-1.3 m/s may cause the generator to rotate at low speeds or even fail to generate electricity.…”

Section: Methodsmentioning

confidence: 99%

Experimental, Numerical and Application Analysis of Hydrokinetic Turbine Performance with Fixed Rotating Blades

Güner

Zenk

2020

Energies

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In this study, a hydrokinetic turbine is designed for the high-altitude regions where local electricity network lines are difficult to reach. If there was a stream flow around, electricity production could be possible and necessary because of environmental reasons. The performance of the hydrokinetic turbine was investigated experimentally and numerically. The numerical analyses of the turbine system were performed via MATLAB/Simulink version R2014a. Except power-based performance characteristics, efficiency of the system in terms of installation and necessary investment costs were also investigated. It is calculated that the system to be established on a river with a water flow rate of 30 m3/h will meet the investment cost in approximately 8 years.

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Section: Methodsmentioning

confidence: 99%

Experimental, Numerical and Application Analysis of Hydrokinetic Turbine Performance with Fixed Rotating Blades

Güner

Zenk

2020

Energies

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“…This model will be referred to as straight blade cascaded (SBC). This modification succeeded to tackle the low efficiency and self-starting issues of vertical axis turbines [18][19][20]. This combination allows the turbine to have greater force and torque as well as a larger area so that the pressure will be higher [26].…”

Section: Design Of Hydrokineticmentioning

confidence: 99%

“…VAHT-SBC has nine blades with three blades on each arm. The outer blade on each arm has a passive-pitch mechanism, which enables the blades to adjust their pitch angle in the range of -20° ≤ β ≤ 20° [19][20]. The aspect ratio of the turbine is 1:8 with chord and span length at 10 cm and 80 cm, respectively, using NACA 0018 as hydrofoil profile.…”

Section: Design Of Hydrokineticmentioning

confidence: 99%

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Site Test Performance and Numerical Study of Vertical Axis Hydrokinetic Turbine Straight Blade Cascaded (VAHT–SBC)

Hantoro

Sarwono

Panjaitan

et al. 2021

J. Eng. Technol. Sci.

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This study designed a hydrokinetic energy conversion system (HECS), which connects a permanent magnetic synchronous generator with a vertical axis turbine through a pulley and belt transmission system. The developed model of the Vertical Axis Hydrokinetic Turbine -Straight Blade Cascaded (VAHT-SBC) can potentially produce a maximum power potential of 174.058 W on site with a current velocity of 0.92 m/s, however, in this condition the turbine efficiency is the lowest (22.25%). A pulley ratio of 1:3 had the highest performance in this integration system, due to its ability to generate a load of 50 W on site with a current velocity of 0.82 and 0.92 m/s.

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“…Nilai tip speed ratio ()  adalah perbandingan antara kecepatan tangensial di ujung rotor terhadap kecepatan fluida yang mengaliri turbin tersebut. (Hantoro et al, 2018). Kironoto (2009) dan Kironoto dan Walter (1994).…”

Section: Tinjauan Pustakaunclassified

Inovasi Dan Desain Turbin Hidrokinetik Darrieus Berdasarkan Bentuk Distribusi Kecepatan Aliran

2020

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Darrieus turbine use blades with a hydrofoil shape, so the rotational ability is influenced by lift force. This caused the initial rotation capability to be very low when compared to the drag turbine type. The flow velocity distribution in the vertical direction indicates a small cross-sectional speed of flow approaching the base of the flow channel, then rising towards the surface. Darrieus Spinning Top turbine is the result of innovation and design based on the concept of flow velocity distribution. Darrieus Spinning Top turbine’s blade shapes are circular-arc and straight-line, adjusting flow velocity distribution of 0.2H, 0.6H and 0.8H from the top of the turbine. In this study, a performance comparison was conducted between Darrieus turbine and Spinning Top Darrieus. Darrieus turbines produce RPM and torque values of 54.59 – 67.90 and 0.014 – 0.029 Nm, respectively. Darrieus Spinning Top turbines produce RPM values and torque of 69.24 – 82.02 and 0.012 – 0.020 Nm respectively. RPM improvements in Darrieus Spinning Top turbine design increase the influence of lift force (increased λ value). This results in a high lap rate, but requires a high self starting to perform the turbine rotation cycle.

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Innovation in Vertical Axis Hydrokinetic Turbine – Straight Blade Cascaded (VAHT-SBC) design and testing for low current speed power generation

Cited by 8 publications

References 9 publications

Experimental, Numerical and Application Analysis of Hydrokinetic Turbine Performance with Fixed Rotating Blades

Experimental, Numerical and Application Analysis of Hydrokinetic Turbine Performance with Fixed Rotating Blades

Site Test Performance and Numerical Study of Vertical Axis Hydrokinetic Turbine Straight Blade Cascaded (VAHT–SBC)

Inovasi Dan Desain Turbin Hidrokinetik Darrieus Berdasarkan Bentuk Distribusi Kecepatan Aliran

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