Optimization of Output Parameters of The Horizontal Tidal Turbine by Modifying Its Meridional Section

Rumaherang, Wulfilla Maxmilian; Ufie, Richardus; Latuny, Jonny

doi:10.1109/bicame45512.2018.1570498954

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…The water flow velocity, power density data, and power requirements generated by the fluid determine the turbine's dimensions and geometry by using the continuity principle. The turbine geometry shape in this research was calculated and constructed in earlier studies [21].…”

Section: Methods Power Density and Turbine Geometrymentioning

confidence: 99%

Fluid Flow Study in Various Shapes and Sizes of Horizontal Axis Sea Current Turbine

Rumaherang

Latuny

2021

Sinergi

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The ducted tidal turbine models have been developed to utilize the conversion of the kinetic energy on ocean currents. The research in refining the turbine characteristics has been carried out by modifying the turbine’s shape and size. This study investigated flow characteristics in the meridional section of five ducted turbines models for seawater flow with velocity U0 = 1.5 m/s. The ducted turbine design and construction have five different impeller house diameters and fixed inlet and outlet diameters. The potential energy flow theory and experimental data are used to analyze the flow characteristics of the model. The results show that flow velocity in the x-direction at the inlet and outlet cross-section is getting smaller, reducing the impeller house cross section. Each impeller house size reduction increases the flow speed in the impeller house cross-section and also pressure on all other cross-sections tested. In the inlet area, the increased pressure indicates a decrease in speed flow and discharge coefficient value. The discharge coefficient value decreases from CQ = 0.9 at the diameter ratio of dr = 1 to CQ = 0.56 at the diameter ratio of dr = 0.375. The maximum value of power coefficient was determined at dr = 0,61÷0.73 or dr = 0.69 which is equivalent to average internal flow velocity Vr =2.0÷2.6 m/s and the static pressure ps = 97.1÷ 94.4 kPa. At the ratio value of D0/D2 = 0.83, the optimal diameter ratio dropt=0,61÷0.73 is in line with the duct model of case 3 and case 4, but it may be determined solely as for case 4.

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Section: Methods Power Density and Turbine Geometrymentioning

confidence: 99%

Fluid Flow Study in Various Shapes and Sizes of Horizontal Axis Sea Current Turbine

Rumaherang

Latuny

2021

Sinergi

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“…serta generator dan sistem control [10]. Turbin aksial horizontal saat ini telah berkembang menjadi turbin aksial horizontal tanpa selubung [9][10] [11][12] atau bare turbine [17] dan turbin horizontal dengan selubung [18][19] [20] yang memiliki prinsip kerja yang sama dengan ducted tidal turbine [11][17] [21][22] [23] [24].…”

Section: Pendahuluanunclassified

“…Dalam penelitian daya poros Pp diukur pada poros turbin. Oleh karena itu data daya poros Pp diperoleh dari hasil pengukuran dengan prony break, yang dalam penelitian dipeoleh dari kalkulasi hidrodinamika pada blade turbin [23].…”

Section: Torsi Dan Daya Turbinunclassified

Kajian Perbandingan Performance Energi Turbin Angin Model Ducted Dengan Un-Ducted

Rumaherang¹,

Laconawa²,

Titahelu³

et al. 2022

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Abstrak. Pengurangan emisi karbon dioxida secara signifikan sampai dengan 28% pada tahun 2030 menjadi isu penting sehingga diperlukan inovasi dan pemanfaatan energi angin sebagai salah sumber energi baru terbarukan hijau. Ada dua jenis tipe turbin angin dengan selubung (ducted) dan turbin angin aliran bebas (un-ducted). Aplikasi kedua turbin ini pada PLTB akan memberikan performance yang berbeda. Berapa perbedaan nilai parameter-parameter energi pada kedua turbin ini menjadi masih menjadi permasalahan dan fokus penelitian. Penelitian ini dilakukan untuk menentukan perbandingan performance energi dari kedua model turbin tersebut dengan diameter impeller DM= 1 meter dengan menggunakan profil blade NACA 63-412. Penelitian ini dilakukan melalui pengujian di laboratorium pada variasi kecepatan angin 2 – 8 m/s. Nilai momen diperoleh melalui pembebanan bertahap pada prony break sampai putaran mencapai nilai yang telah ditentukan atau dihitung sebelumnya. Hasil penelitian parameter-paremeter energi menujukan bahwa peformance pada turbin angin dengan selubung (ducted wind turbine) lebih tinggi dari turbin angin tanpa selubung (un-ducted wind turbine). Nilai kenaikan daya turbin dengan selubung (ducted wind turbine) untuk kecepatan 2 – 8 m/s berkisar pada nilai Pducted = (0 – 2.5)Pun-ducted, Sehingga dari aspek konversi energy direkomendakian penggunaan turbin angin ducted.

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Optimization of Output Parameters of The Horizontal Tidal Turbine by Modifying Its Meridional Section

Cited by 2 publications

References 6 publications

Fluid Flow Study in Various Shapes and Sizes of Horizontal Axis Sea Current Turbine

Fluid Flow Study in Various Shapes and Sizes of Horizontal Axis Sea Current Turbine

Kajian Perbandingan Performance Energi Turbin Angin Model Ducted Dengan Un-Ducted

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