Ghifari, Ahmad Obrain (2017) Studi Numerik Pengaruh Rasio Udara dan Bahan Bakar terhadap Karakteristik Circulating Fluidized Bed Boiler pada Beban Tinggi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Hasil dari simulasi menunjukkan bahwa semakin tinggi nilai Air-fuel ratio maka hasil dari fluidisasi akan meningkat, pasir yang pada awalnya terletak dibawah furnace akan terangkat ke bagian atas furnace jika AFR meningkat. Peningkatan AFR juga berpengaruh pada banyaknya pasir yang bisa masuk kedalam cyclone, hal ini bisa menyebabkan cyclone mengalami erosi dan bisa mengurangi performa dari cyclone itu sendiri. Hal yang sama juga berlaku pada kontur dan vektor kecepatan udara, semakin tinggi nilai AFR maka kecepatan udara yang ada di furnace dan cyclone akan semakin meningkat. Untuk hasil dari temperatur pembakaran nilai temperatur juga akan meningkat sesuai dengan peningkatan AFR, maka dari itu bisa disimpulkan bahwa dengan meningkatkan AFR maka hasil dari kecepatan, temperatur dan volume fraksi pasir akan ikut meningkat meskipun tidak secara signifikan.
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The result of the simulation shows that with the escalation of the air and fuel ratio so the result of the fluidization is also escalate, the sand that at the beginning located at the bottom furnace will lifted to the upper furnace if the AFR escalate. The escalation of AFR is take effect to the amount of the sand that entering the cyclone, this matter will make cyclone experience the erosion by the sand and will reduce the performance of the cyclone. The same thing is applied to the velocity contour and vector of the air, with the escalation of the AFR so the air velocity in the furnace and cyclone will also increase. For the result of combustion temperature the value of the temperature will also escalate if the air-fuel ratio is increasing, so the conclusion is with the increasing of air-fuel ratio so the velocity, temperature and sand volume fraction will also increase although not with significant amount.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 620.106 4 Ghi s |
| Uncontrolled Keywords: | PLTU Air Anyir, Circulating Fluidized Bed (CFB) boiler, Rasio udara dan bahan bakar, Computational Fluid Dynamics (CFD), Beban tinggi, Coal Fired Steam Power Plant Air Anyir, Circulating Fluidized Bed Boiler, Air and fuel ratio, High Load |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ164 Power plants--Design and construction |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Ahmad Obrain Ghifari |
| Date Deposited: | 20 Nov 2017 07:08 |
| Last Modified: | 06 Mar 2019 04:47 |
| URI: | http://repository.its.ac.id/id/eprint/44335 |
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