Studi Eksperimental Pengaruh Perbesaran Dimensi dan Konfigurasi Counter-Rotating Turbin terhadap Performansi Turbin Arus Laut Vertical Axis Straight Blade Cascade

Firmansyah, Okky Agassy (2017) Studi Eksperimental Pengaruh Perbesaran Dimensi dan Konfigurasi Counter-Rotating Turbin terhadap Performansi Turbin Arus Laut Vertical Axis Straight Blade Cascade. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Telah dilakukan pembuatan rancang bangun turbin arus laut vertical axis straight blade cascade dengan perbesaran dimensi, yaitu variasi dimensi turbin dengan diameter 0,4 m, 0,6 m, dan 0,8 m. Variasi kecepatan aliran yang digunakan untuk eksperimen ini adalah 1,1 m/s, 1,2 m/s, dan 1,3 m/s dengan menggunakan variasi 3 dimensi turbin. Perbesaran dimensi turbin mempunyai pengaruh positif terhadap peningkatan performansi dari turbin. Didapatkan Cp tertinggi yaitu 0,42 dengan dimensi turbin berdiameter 0,8 m pada kecepatan aliran 1,1 m/s. Pada penelitian tentang konfigurasi array turbin, dilakukan pengambilan data pada Laboratorium Hidrodinamik (Towink Tank), Teknik Perkapalan, ITS Surabaya. Variasi kecepatan aliran yang digunakan untuk eksperimen ini adalah 0,7 m/s, 1,0 m/s, dan 1,3 m/s dengan menggunakan variasi 3 konfigurasi array turbin yaitu konfigurasi co-rotating, counter-rotating out dan counter-rotating in. Didapatkan hasil bahwa konfigurasi counter-rotating turbin berpengaruh positif terhadap peningkatan performansi turbin dibandingkan dengan stand alone turbin. Performansi turbin dalam sebuah konfigurasi array dipengaruhi oleh interaksi hidrodinamik yang terjadi diantara kedua turbin. ================================================================= Prototype and experiment of vertical axis straight blade cascade dimensional scaling up have been completed with three variation of dimension rotor diameter, which is 0,8 m, 0,6 m and 0,4 m. The used freestream velocity were 1,1 m/s, 1,2 m/s, 1,3 m/s using three variation of turbines dimension. Dimensional scaling up have a positive impact for increasing turbine performance. The result show that the highest Cp 0,42 at freestream velocity 1,1 m/s with turbine’s rotor diameter 0,8 m. In research about array configuration turbines, which is held at Hydrodinamic Laboratory (Towink Tank), Marine Engineering Department, ITS Surabaya. The used freestream velocity were 0,7 m/s, 1,0 m/s, and 1.3 m/s using three variation of turbines array configuration, which is co-rotating, counter-rotating-out and counter-rotating-in configuration. The result show that counter-rotating configuration have a positive impact to increase turbine’s performance than stand alone turbine. Turbine’s performance in a array configuration is influenced by the hydrodynamic interaction between two turbines.

Item Type: Thesis (Undergraduate)
Additional Information: RSF 620.106 4 Fir s
Uncontrolled Keywords: Turbin Sumbu Vertikal, Darrieus, Turbin Cascade, Efisiensi Turbin, Perbesaran Dimensi, Array Turbin, Counter Rotating Turbin, Vertical axis Turbine, Darrieus, Cascade turbine, Turbine eficiency, Scaling Up, Array Turbine, Counter-Rotating Turbine
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: Okky Agassy Firmansyah
Date Deposited: 12 Oct 2017 07:29
Last Modified: 08 Mar 2019 02:05
URI: http://repository.its.ac.id/id/eprint/46452

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