Aristio, Rinaldi (2016) Desain Gas Burner Pada Mini Plant Boiler Di Workshop Instrumentasi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Tujuan dari penelitian ini adalah mendesain
burner pada mini plant boiler di workshop instrumentasi dan
mengetahui performanya dengan menggunakan variasi diameter
dan excess air factor. Burner yang didesain menggunakan tipe
non-premixed burner dengan penambahan swirler. Performa
burner didapatkan dari simulasi CFD menggunakan model Eddy
Dissipation Model (EDM) dengan parameter turbulensi
Realizable k-epsilon. Analisa hasil simulasi yang dilakukan
adalah pengaruh variasi diameter terhadap kontur temperatur dan
pengaruh variasi excess air factor terhadap fraksi massa emisi gas
buang dan efisiensi pembakaran. Pengurangan diamater nozzle
menyebabkan panjang area temperatur adiabatik semakin panjang
dan meningkatkan temperatur pada boiler. Peningkatan variasi
excess air factor menyebabkan penurunan tempeatur, fraksi
massa emisi NOx, CO dan hidrokarbon (CH4) pada setiap model
diameter. Pada penelitian ini performa burner terbaik dihasilkan
oleh variasi diameter 0.6 cm dengan nilai excess air factor λ = 1.4
dengan hasil temperatur gas buang sebesar 1086.01 K dengan
fraksi massa NOx 1.36.10-5, fraksi massa hidrokarbon (CH4)
sebesar 2.59x10-12, fraksi massa CO sebesar 2.87x10-9 dan
efisiensi pembakaran 93.8%.
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The purpose of this study was to design a mini-burner
on the boiler plant at the workshop instrumentation and knowing
performance by using variation of diameter and excess air factor.
Burner is designed using a type of non-premixed burner with
swirler additions. Burner performance obtained from CFD
simulations using models Eddy Dissipation Model (EDM) with
parameters realizable k-epsilon turbulence. Analysis of the
simulation results are the influence of diameter variation toward
temperature contour and influence of excess air factor toward
mass fraction of exhaust emissions and combustion efficiency.
Reduction of nozzle diameter length result in adiabatic
temperature area getting longer and increases the temperature of
the boiler. Increased variation excess air factor result in decrease
tempeatur, mass fraction emissions of NOx, CO and
hydrocarbons (CH4) on every model diameter. In this study, the
best burner performance generated by variation in the diameter
0.6 cm and excess air factor λ = 1.4 with the results of exhaust
gas temperature of 1086.01 K with 1.36.10-5 NOx mass fraction,
mass fraction of hydrocarbons (CH4) of 2.59x10-12, CO mass
fraction of 2.87x10-9 and 93.8% combustion efficiency.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSF 621.193 Ari d |
| Uncontrolled Keywords: | excess air factor, eddy dissipation model, nonpremixed burner, CFD |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ164 Power plants--Design and construction |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Anis Wulandari |
| Date Deposited: | 14 Jul 2017 05:25 |
| Last Modified: | 26 Dec 2018 04:01 |
| URI: | http://repository.its.ac.id/id/eprint/42164 |
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