Analisa Numerik Pengaruh Ukuran Kokas Terhadap Distribusi Temperatur Dan Tekanan Mini Blast Furnace

Hidayatullah, Nur, M. (2016) Analisa Numerik Pengaruh Ukuran Kokas Terhadap Distribusi Temperatur Dan Tekanan Mini Blast Furnace. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Studi pemodelan mini blast furnace (MBF) telah dilakukan dengan melakukan scaledown terhadap program yang digunakan untuk penelitian blast furnace Institute of Multi-disciplinary Research for Advanced Material dari Universitas Tohoku Jepang. Pemodelan dilakukan untuk mengetahui pengaruh dari ukuran diameter kokas terhadap performa MBF. MBF yang digunakan dari Anyang Steel dengan kapasitas 300 m3. Modifikasi program dilakukan dengan mengubah jumlah node pada mesh geometri MBF. Hasil scaledown divalidasi dengan data operasi MBF dengan rata-rata persentase error 1,9%. Variasi diameter kokas digunakan antara lain 28 mm, 48 mm, 78 mm dan 118 mm. Temperatur maksimal MBF yang diperoleh berturut-turut 1990 oC; 2000 oC; 2030 oC; 2250 oC. Pressure drop yang diperoleh berturut-turut 0,93 atm; 0,75 atm; 0,63 atm; 0,54 atm. Semakin bertambah ukuran kokas produktifitas menurun, konsumsi kokas fluktuatif, efisiensi MBF semakin menurun, waktu residence dari udara menurun, kecepatan blast makin meningkat, tekanan udara depan tuyer semakin menurun, kecepatan burden semakin meningkat dan laju slag semakin meningkat. Dari hasil grafik produktifitas dan konsumsi kokas didapatkan trenline dengan perpaduan produktifitas tertinggi dan konsumsi kokas terendah pada ukuran diameter kokas 48 mm. =========================================================== Modeling studies mini blast furnace (MBF) is done by scaledown of the program used for research at blast furnace Institute of Multi-disciplinary Research for Advanced Materials of Tohoku University - Japan. Modelling conducted to determine the effect of the size of the diameter of the coke on the performance of MBF. MBF use of Anyang Steel with a capacity of 300 m3. Modification program is done by changing the number of nodes in MBF mesh geometry. Scaledown results validated by MBF operating data with the average percentage error of 1.9%. Variations in coke diameter is 28 mm, 48 mm, 78 mm and 118 mm. Maximum temperature MBF obtained successively 1990oC; 2000oC; 2030oC; 2250oC. Pressure drop obtained successively 0.93 atm; 0.75 atm; 0.63 atm; 0.54 atm. Increasing the size of the coke causes decreased productivity, fluctuating coke consumption, MBF efficiency decreases, residence time of the air decreases, blast velocity increases, blast pressure in front tuyer decreases, speed of burden and rate of slag increases. From the results of productivity and coke consumption graph trenline obtained with a blend of the highest productivity and the lowest consumption of coke in coke size 48 mm diameter.

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 669.141 3 Nur a
Uncontrolled Keywords: Mini Blast Furnace, diameter kokas, pemodelan smelter, ekstraksi bijih besi.
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL671.6. Materials--Fatigue.
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: EKO BUDI RAHARJO
Date Deposited: 01 Nov 2019 08:12
Last Modified: 01 Nov 2019 08:12
URI: https://repository.its.ac.id/id/eprint/71544

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