Analisis Fenomena Multifasa Bagian Bawah Mini Blast Furnace Terhadap Distribusi Fasa, Tekanan, dan Kecepatan Gas Dengan Variasi Sudut Tuyere Menggunakan DEM-CFD Coupled Model.

Sumantri, Rizki (2020) Analisis Fenomena Multifasa Bagian Bawah Mini Blast Furnace Terhadap Distribusi Fasa, Tekanan, dan Kecepatan Gas Dengan Variasi Sudut Tuyere Menggunakan DEM-CFD Coupled Model. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Terobosan yang dilakukan untuk mengolah bijih nikel laterit ialah menggunakan mini blast furnace yang dilakukan di Departemen Teknik Material Institut Teknologi Sepuluh Nopember yang berbasis eksperimen. Sehingga diperlukan analisis permodelan berbasis simulasi pada mini blast furnace dengan menganalisis fenomena multifasa pada mini blast furnace di dalamnya. Pemodelan ini menggunakan DEM-CFD coupled model (gas-solid phase) dan CFD Fluent model (gas-solid-liquid model) terhadap variasi sudut pada tuyere (0°, 3°, 7°, dan 11°). Dari hasil pemodelan menunjukkan variasi sudut tuyere berpengaruh pada distribusi fasa. Pada gas-solid phase, semakin meningkat sudut tuyere maka voidage pada coal semakin besar namun pada raceway apabila sudut terlalu tinggi atau rendah maka bentuk raceway tidak besar dan spherical, dan berlaku pada gas-solid phase dan gas-solid-liquid phase. Kecepatan gas dipengaruhi oleh variasi sudut tuyere, semakin meningkatnya sudut tuyere maka semakin tinggi nilai kecepatan gas. Nilai tekanan juga dipengaruhi oleh sudut tuyere, semakin meningkat sudut pada tuyere, maka nilai tekanan pada MBF semakin tinggi. Sehingga sudut paling optimal yang digunakan adalah sudut 0° pada tuyere dikarenakan kecilnya pressure drop dan kecilnya kecepatan gas. ======================================================================================================================== A development undertaken to process lateritic nickel ore is to use a mini blast furnace at the Department of Materials Engineering Institute of Technology, November 10, based on experiments. So it is necessary to analyze modeling based on simulation on the mini blast furnace by analyzing the multiphase phenomenon inside the mini blast furnace. This modeling uses the DEM-CFD coupled model (gas-solid phase) and CFD Fluent model (gas-solid-liquid model) with respect to angle variations in the tuyere (0°, 3°, 7°, and 11°). From the results of modeling shows the variation of tuyere angle affects the phase distribution. In the gas-solid phase, the tuyere angle increases, the voidage in coal is higher. But in the raceway, if the angle is too high or low, the raceway is not large and spherical, and applies to the gas-solid phase and gas-solid-liquid phase. Gas velocity is influenced by tuyere angle variation. By increasing tuyere angle, the higher the gas velocity value in MBF multiphase. The pressure value is also influenced by the tuyere angle, the more the angle of the tuyere increases, the higher the pressure value on the MBF Multiphase. So, the most optimal tuyere angle used is 0° of tuyere angle due to less pressure drop and less velocity.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: CFD, distribusi fasa, EDEM, fenomena multifasa, kecepatan gas, Mini Blast Furnace, sudut tuyere, tekanan. CFD, EDEM, gas velocity, Mini Blast Furnace, multiphase phenomena, phase distribution, pressure, tuyere angle.
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method
T Technology > TN Mining engineering. Metallurgy
T Technology > TN Mining engineering. Metallurgy > TN677 Blast furnaces.
T Technology > TN Mining engineering. Metallurgy > TN799.N6 Nickel--Metallurgy
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: Rizki Sumantri
Date Deposited: 13 Aug 2020 01:12
Last Modified: 13 Aug 2020 01:12
URI: http://repository.its.ac.id/id/eprint/77779

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