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ITS » Master Theses » Teknik Mesin - S2 Posted by dee@its.ac.id at 12/01/2012 09:26:49 • 94 Views
INVESTIGASI EKSPERIMENTAL DAN NUMERIK TERHADAP ALIRAN UDARA DALAM VENTILATOR TURBIN-EXHAUST HOOD DAN VERIFIKASI KINERJANYA DALAM MENGHASILKAN ENERGI
EXPERIMENTAL AND NUMERICAL INVESTIGATION OF
AIRFLOW WITHIN THE TURBINE VENTILATOR- EXHAUST
HOOD AND VERIFY ITS PERFORMANCE ON HARVESTING
ENERGY
Created by :
AARON, SHAI KHOTSO ( 2109202701 )
| Subject: | Turbin | | Alt. Subject : | Turbines | | Keyword: | Turbin ventilator Sudut hood Penurunan tekanan Laju aliran Daya Pemanfaatan energy |
[ Description ]
Perhatian global terhadap upaya penghematan dan konservasi energy semakin meningkat sehubungan dengan perkembangan ekonomi, pertambahan
penduduk dan penggunaan bahan bakar fosil dengan tingkat konsumsi yang tinggi yang akan berpotensi terhadap kerusakan lingkungan hidup yang selama ini
menopang kehidupan manusia. Adanya kekhawatiran akan penggunaan energi fossil yang akan berakibat buruk ini menjadi ilham untuk membuat desain sistem
ventilasi bangunan. Pada penelitian ini, pemanfaatan energi angin dengan menggunakan turbin ventilator atap akan diselidiki untuk menguji kinerjanya dengan menggunakan metoda eksperimen dan numerik. Percobaan akan dilakukan pada bagian pengujian yang terdiri dari turbin ventilator, dengan variabel exhaust hood, pleno dan ruang balancing, dan kecepatan angin bervariasi antara 4 m / s ~ 10 m / s.
Variabel yang akan diukur adalah penurunan tekanan, laju aliran, daya yang dihasilkan oleh poros turbin ventilasi yang terhubung ke perangkat pembangkit listrik dan kecepatan aliran udara. Tekanan di dalam sidang plenum akan ditetapkan sekitar 0 Pa relatif terhadap tekanan atmosfer. Simulasi CFD akan dilakukan menggunakan FLUENT 6.2 juga untuk mendukung observasi eksperimental dari aliran di bagian pengujian. Pembuatan model dan meshing dari bagian pengujian akan dibuat menggunakan software Gambit. Visualisasi perilaku
aliran sekitar exhaust hood, penurunan tekanan di dalam, laju alir dan kecepatan fluida akan dipelajari. Hasilnya kemudian akan dibandingkan dengan yang
didapat secara eksperimental. Hasil penelitian menunjukkan bahwa peningkatan sudut exhaust hood
akan meningkatkan kinerja turbin ventilator. Sudut hood yang lebih dari 180o. ditemukan memiliki laju aliran yang lebih tinggi dibanding yang lain. Daya yang
dihasilkan juga meningkat secara linier dengan peningkatan kecepatan angin dan sangat kecil dipengaruhi oleh variasi hood angle.
Alt. Description
Demand for clean and renewable energy has increased due to economic growth, increasing population and the use of fossil fuel at high rate which have the potential to destroy the very environment which sustain life has brought about turning point in the design of building ventilation systems. As a result, the need for new energy source that could be renewable and environmentally friendly has brought scientists and politicians together. In this study, harvesting wind energy using rooftop turbine ventilator and variable exhaust hood angle have been investigated experimentally on a specifically designed test chamber, and numerically to verify its performance. Turbine ventilator is an equipment that uses natural wind force to bring out the rotation of the turbine and creates a negative pressure at the downstream end of the pipe to exhaust airflow. Exhaust hood angle which was varied between 360,
720 and 1080 increases the surface area of the exhaust space while, the wind speeds simulating the outdoor far wind was varied between 4 m/s ~ 9 m/s.
Experimentally, dynamic pressure was measured using pitot tube and flow rate was calculated. Power produced by rotating turbine ventilation shaft which is
connected to electric generating device and air flow velocity. The pressure inside the plenum was maintained at approximately 0 Pa relative to atmospheric pressure. CFD simulation was performed using FLUENT 6.3 to validate with the experimental observation of the flow across the test sections. Drawing and Meshing of the test section was made using Gambit software. Visualization the flow behaviour around exhaust hood, pressure drop inside, flow rate and fluid velocity was studied. The results were then compared to those found experimentally.
It was observed that increasing the angle of the exhaust hood increases the performance of the turbine ventilator by increasing surface area for exhaustion The hood with higher angle of 1080 was found to have higher flow rate than the two respectively. The power harvested was also found to be increasing linearly with an increase in wind speed and slightly with hood angle variation.
| Contributor | : |
- Prof. Dr. Ir. Triyogi Yuwono, DEA
- Dr. Wawan Aries Widodo, ST., MT.
| | Date Create | : | 01/08/2011 | | Type | : | Text | | Format | : | pdf | | Language | : | Indonesian | | Identifier | : | ITS-Master-3100011045204 | | Collection ID | : | 3100011045204 | | Call Number | : | RTM 621.406 Aar e |
Source : Master Thesis of Mechanical Engineering, RTM 621.406 Aar e, 2011
Coverage : ITS Community
Rights : Copyright @2011 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library
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- ITS-Master-17198-investigasi-eksperimental-dan-numerik-terhadap-aliran-udara-dalam-ventilator-turbin-exhaust-hood-dan.pdf - 46 KB
 - ITS-Master-17198-experimental-and-numerical-investigation-ofairflow-within-the-turbine-ventilator-exhausthood-and-ver.pdf - 42 KB
 - ITS-Master-17198-Approval_Sheet.pdf - 205 KB
 - ITS-Master-17198-Abstract_id.pdf - 446 KB
 - ITS-Master-17198-Abstract_en.pdf - 448 KB
 - ITS-Master-17198-Preface.pdf - 425 KB
 - ITS-Master-17198-Table_of_Content.pdf - 1437 KB
 - ITS-Master-17198-Tables.pdf - 388 KB
 - ITS-Master-17198-Illustrations.pdf - 1098 KB
 - ITS-Master-17198-Simbols.pdf - 763 KB
 - ITS-Master-17198-Bibliography.pdf - 1113 KB
 - ITS-Master-17198-2109202701-Chapter1.pdf - 291 KB
 - ITS-Master-17198-2109202701-Conclusion.pdf - 237 KB
 - ITS-Master-17198-2109202701-Presentation.pdf - 1161 KB

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1. ITS-Master-17198-2109202701-Chapter2.pdf - 521 KB  2. ITS-Master-17198-2109202701-Chapter3.pdf - 823 KB  3. ITS-Master-17198-2109202701-Chapter4.pdf - 926 KB  4. ITS-Master-17198-2109202701-Enclosure.pdf - 418 KB  5. ITS-Master-17198-2109202701-Paper.pdf - 333 KB 
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