Bhaskarra, Farid Viko (2011) Analisa Pengaruh Perubahan Nilai Swirl Number Terhadap Effisiensi Pembakaran Pada Gas Turbin Dengan Menggunakan Large Eddy Simulation(Les). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
Preview |
Text
2407100020-Undergraduate_Theses.pdf - Published Version Download (1MB) | Preview |
Abstract
Desain gas turbin membutuhkan perhitungan efisiensi
dan pencampuran yang bagus pada proses reaksi
pembakaran. Simulasi numerik merupakan salah satu cara
untuk mengatasi permsalahan ini. Hingga saat ini Large Eddy
Simulation (LES) merupakan salah satu metode yang sangat
menjanjikan untuk mengatasi permasalahan ini. Pada artikel
ini diperkenalkan desain swirler dengan memvariasikan
bukaan swirler, terdapat 5 variasi sudut bukaan yaitu 50
, 150, 200, 250 dan 300. Kinerja dari swirler ini diselidiki
menggunakan 5 simulasi CFD yang bertujuan untuk
mengetahui pengaruh sudut bukaan swirler terhadap daerah
resirkulasi pembakaran. Dari hasil simulasi, terlihat bahwa
sudut bukaan 250 pada daerah pembakaran menghasilkan
titik stagnasi yang paling tinggi sekitar 45,26022 mm.
Effisiensi terbesar terjadi pada bilangan Swirl 0,7583 sebesar
89,35%. ========== Efficiency calculation and a good mixing process are
required in designing gas turbine combustor. Numerical
simulations using Large Eddy Simulations are well suited to
address these issues. In this study, a numerical simulation of
non reacting flow in gas turbine combustor was performed.
There were 5 variations of swirler’s angles (50, 150, 200, 250
and 300). Perfomances of these new swirler were investigated.
The main target of this investigation is to get the effect of
swirler’s angle to combustion recirculation zone. The results
show that the longest flame stagnation point of 45,26022 mm
was obtained at 250 of swirler’s angle. The highest efficiency
was obtained at swirl number 0,7583 (300) i.e 89,35 %
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Gas turbin, Large Eddy Simulation, Swirler, Computational Fluid Dynamics (CFD), Gas turbine, Large Eddy Simulation, Swirler, Computational Fluid Dynamics (CFD) |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ778 Gas turbines T Technology > TJ Mechanical engineering and machinery > TJ785 Internal combustion engines. Spark ignition |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | - Davi Wah |
| Date Deposited: | 26 Jul 2019 05:39 |
| Last Modified: | 26 Jul 2019 05:39 |
| URI: | http://repository.its.ac.id/id/eprint/64325 |
Actions (login required)
 |
View Item |