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ITS » Undergraduate Theses » Teknik Kelautan Posted by dee@its.ac.id at 09/05/2011 14:34:37 • 1780 Views
ANALISA PENGARUH BENTUK OSCILLATING PART PADA
KONVERSI ENERGI VORTEKS DENGAN PEMODELAN
NUMERIK
ANALYSIS OF EFFECT OSCILLATING PART
TRANSFORMATION IN VORTEX CONVERSION ENERGY
USING NUMERICAL MODEL
Author : FIRDAUS, YUSTISIA ( 4306100034 )
ABSTRAK
Konversi energi vorteks merupakan salah satu sumber energi terbarukan yang ramah lingkungan dan bisa dimanfaatkan untuk mengurangi emisi gas rumah kaca ke atmosfir. Para ahli berusaha untuk menekan dan mengurangi getaran yang terjadi pada sistem-sistem rekayasa. Tetapi kini sebaliknya energi yang timbul akibat adanya getaran tersebut justru diambil dan dimanfaatkan untuk diubah
menjadi energi listrik. Tugas akhir ini dimaksudkan untuk mengetahui pengaruh perubahan bentuk oscillating part pada konversi energi vorteks agar amplitudo VIV Vortex Induced Vibration yang dihasilkan bisa maksimum. Selain itu juga
untuk menganalisa perbandingan antara perubahan bentuk oscillating part dengan VIVACE Vortex Induced Vibration Aquatic Clean Energy Bernitsas dkk 2004. Dimensi silinder yang dianalisa berukuran panjang 914.4 mm dan diameter 127 mm. Kecepatan arus yang digunakan pada tiap model adalah 0.4 0.5 dan 0.7 ms. Nilai amplitudo yang dihasilkan pada peneltian ini sebesar 17-
350 mm pada kecepatan aliran 04-07 ms. Nilai amplitudo yang paling besar dihasilkan adalah pada model VIII dengan ratio d1d2 125 panjang 914 mm. Tetapi nilai amplitudo yang dihasilkan oleh pemodelan elips adalah lebih kecil jika dibandingkan dengan nilai amplitudo yang dihasilkan oleh silinder sebesar 32-375 mm pada kecapatan aliran 04-07 ms.
ABSTRACT
Vortex energy conversion represents one the new environmental friendly power source that can be exploited as an effort to lessen glasshouse gas emission from the atmosphere. Nowadays expertise and scientist tries to produce more vibration
so that the effect of existence of the vibration can exactly be taken exploited and altered into an electric power. This final project purpose is to knowing the transformation effect of Oscillating Part in order to maximizing the VIVs Vortex Induced Vibration amplitude in vortex conversion energy. Furthermore
this final project also analyzing the comparison among the transformation of oscillating part with VIVACE Vortex Induced Vibration Aquatic Clean Energy Bernitsas et all 2004. The dimension of Cylinder that was analyzed in this project has length 914.4 mm and diameter 127 mm. The current speed that was used in every model was 0.4 0.5 and 0.7 ms. The amplitude value in this project was equal to 17-350 mm at speed of stream 04 - 07 ms. The biggest amplitude value which was produced by VIII model with d1d2 ratio 125 and length 914
mm. In the other hand amplitude value that produced by ellipse model was smaller comparing with the amplitude that was produced by cylinder model which
is equal to 32-375 mm at speed of stream 04 - 07 ms.
Keywords:
konversi energi vorteks; Oscillating part; Pemodelan numerik
Subject
: Energi panas
Contributor
Prof. Ir. Mukhtasor, M.Eng., Ph.D.
Ir. Arief Suroso, M.Sc.
Date Create
: 10/08/2010
Type
: Text
Format
: pdf
Language
: Indonesian
Identifier
: ITS-Undergraduate-3100010041124
Collection ID
: 3100010041124
Call Number
: RSKe 621.042 Fir a
Source Undergraduate Thesis of Offshore Engineering, RSKe 621.042 Fir a, 2010
Coverage ITS Community
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