Influence of Blade Number on the Flow Characteristics in the Vertical Axis Propeller Hydro Turbine

Byeon, Sun-Seok; Kim, Youn-Jea

doi:10.5293/ijfms.2013.6.3.144

Cited by 17 publications

(11 citation statements)

References 8 publications

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“…Gambar 2. Penampang turbin propeller [13] Geometri dari sebuah turbin air akan mempengaruhi kinerjanya, sehingga pemahaman tentang parameter saat perencanaan turbin air akan memberikan informasi terhadap kinerjanya, sehingga dapat menghasilkan perancangan yang optimal dan sesuai rencana [9]. Dasar kinematika aliran air saat menumbuk turbin dapat dianalisa melalui skema segitiga kecepatan seperti yang ditunjukkan Gambar 3 dengan panjang garis mewakili kecepatannya, dan anak panah mewakili arah alirannya [10].…”

Section: Gambar 1 Konstruksi Turbin Propeller Aliran Vertikal [8]unclassified

Kajian Teoritis Pengaruh Parameter Internal Terhadap Unjuk Kerja Turbin Propeller Sebagai Pembangkit Listrik Tenaga Air Pada Skala Pico

Nurdin¹,

Himawanto

Hadi

et al. 2021

mesin

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Merancang sebuah turbin propeller membutuhkan pemahaman tentang pengaruh parameter terhadap kinerjanya dan ini memberikan informasi penting agar hasil perancangan menghasilkan kinerja optimal. Jumlah sudu, kemiringan sudu, dan sudut outlet pada bagian tip sudu merupakan parameter internal yang mempengaruhi kinerja dari turbin propeller. Kajian ini bertujuan untuk membahas beberapa parameter internal dari turbin propeller pada penelitian-penelitian yang telah dilakukan. Parameter jumlah sudu dan kemiringan sudu menunjukkan kinerja turbin dipengaruhi oleh gaya aksial yang diterima oleh setiap sudunya. Sedangkan pada parameter sudut outlet bagian tip akan mempengaruhi nilai selisih kecepatan tangential absolute antara inlet dan outlet.

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Section: Gambar 1 Konstruksi Turbin Propeller Aliran Vertikal [8]unclassified

Kajian Teoritis Pengaruh Parameter Internal Terhadap Unjuk Kerja Turbin Propeller Sebagai Pembangkit Listrik Tenaga Air Pada Skala Pico

Nurdin¹,

Himawanto

Hadi

et al. 2021

mesin

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“…As the core part of turbine, the runner directly affects the efficiency of whole machine. The number of blades, as the main design parameter of runner, has a more profound influence on the efficiency of turbine 17 . Shi 18 pointed out that runner has optimal blade numbers, and too many or too few blade numbers will lead to poor performance.…”

Section: Introductionmentioning

confidence: 99%

Influence of blade number on performance of multistage hydraulic turbine in turbine mode

Zhang

et al. 2022

Energy Science & Engineering

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Compared with the traditional reverse multistage pump as hydraulic turbine, hydraulic turbine in turbine mode (T‐type turbine) with low specific speed has higher single‐stage energy head, which can effectively reduce stages and increase the stability when it is used to recycle high residual pressure liquid. Blade number of runner is an important design parameter, which has great influence on the performance of T‐type hydraulic turbine and need to be further studied. Therefore, two‐stage T‐type turbine models with different blade numbers are established through numerical simulation. Then, the accuracy of numerical simulation is verified by test. Finally, the performance and pressure fluctuating characteristics of turbine with different blade numbers are obtained. The results show that: (a) Taking same blade numbers in both stages (traditional design method), the turbine efficiency can be higher with the blade number of primary runner and secondary runner are 14, but resulting the superposition of pulsation in secondary runner; (b) Taking different blade numbers in both stages, respectively, the superposition of pulsation can be effectively avoided, which also leads to the increase in efficiency, and up to 81.169%; (c) The method of using different number of blades in different stages can replace the traditional design method and effectively improve the hydraulic performance of T‐type hydraulic turbine.

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“…The analysis of velocity and fluid pressure is performed using the CFD method which is through one system -fluid simulation. CFD has been widely used considering its effectiveness and efficiency compared to the experimental method [11]. Fluid mechanic analyses are generally carried out by energy conversion industries like water, wind, and gas turbines.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Water Debit and Number of Blades on the Power Generated of Prototype Turbines Propeller as Renewable Electricity

Biantoro

Iskendar

Subekti

et al. 2021

JRM

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This research is a prototype design of a Pico hydropower plant. The Pico hydro laboratory scale is planned to be installed at the water outlet at the steam gas power plant (PLTGU) in Cilegon, whose water discharge has not been utilized. Pico hydro will produce green energy, which in turn can partially replace fossil energy needs. The purpose of this study was to determine the effect of water discharge and the number of blades on the power generated by Pico hydro. The method used in this research is an experimental method carried out in the laboratory, by designing and making Pico hydro prototypes, with several variations in the number of blades. The results of the manual calculation analysis show that the mass flow rate, circumferential speed, and the highest rotational speed are found in blade 6. Furthermore, the design process uses the CFD method, which produces the best energy when using 6 or 7 blades. The stronger the water discharge, the higher the Rpm, and the stronger the electric current and the resulting voltage. The water discharge of 0.04 m3/s produces 215 Rpm, a current of 0.30 ampere, and a voltage of 2.00 volts. While the airflow rate of 0.08 m3/s produces 695 Rpm, a current of 0.70 ampere,s and a voltage of 4.30 volts. Statistical analysis also shows that the higher the Rpm value of the 6 blade turbine, the higher the power and current it produces.

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Influence of Blade Number on the Flow Characteristics in the Vertical Axis Propeller Hydro Turbine

Cited by 17 publications

References 8 publications

Kajian Teoritis Pengaruh Parameter Internal Terhadap Unjuk Kerja Turbin Propeller Sebagai Pembangkit Listrik Tenaga Air Pada Skala Pico

Kajian Teoritis Pengaruh Parameter Internal Terhadap Unjuk Kerja Turbin Propeller Sebagai Pembangkit Listrik Tenaga Air Pada Skala Pico

Influence of blade number on performance of multistage hydraulic turbine in turbine mode

The Effects of Water Debit and Number of Blades on the Power Generated of Prototype Turbines Propeller as Renewable Electricity

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