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ITS » Undergraduate Theses » S1 Teknik Kimia - Lintas Jalur
Posted by dee@its.ac.id at 09/01/2015 20:47:01  •  649 Views


SIMULASI FLUIDIZED BED DRYER BERBASIS COMPUTATIONAL FLUID DYNAMIC UNTUK BATUBARA KUALITAS RENDAH

SIMULATION FLUIDIZED BED DRYER BASED COMPUTATIONAL FLUID DYNAMIC FOR LOWRANK COAL

Author :
ARDANI, REZA KURNIAWAN ( 2311105005 )
PRADANA, RENDRA NUGRAHA




ABSTRAK

Penelitian ini bertujuan untuk mempelajari pengaruh adanya internal heater serta variasi propertis-propertis lainya. Upaya pemecahan masalah dalam penelitian ini akan dilakukan melalui study menggunakan metode simulasi berbasis Computational Fluid Dynamic CFD. Simulasi berbasis CFD yang memperhitungkan pola alir fluida secara simultan mampu menyajikan informasi terperinci tentang apa yang terjadi di dalam fluidized bed dryer. Gambaran rinci mengenai profil distribusi partikel kecepatan aliran konsentrasi di setiap titik di dalam fluidized bed dryer memberikan alternatif pemecahan masalah untuk mengetahui kondisi fluidisasi pada fluidized bed dryer. Geometri fluidized bed dryer yang digunakan berbentuk tabung dengan panjang silinder fluidized bed dryer 1370 mm diameter silinder 152 mm serta menggunakan bundle heater di dalamnya. Bahan yang digunakan pada penelitian ini berupa pulverized coal dengan jenis batubara Buckheart dimana ukuran partikel di anggap monodispers dengan particle size sebesar 1.43 mm dengan kecepatan supervicial sebesar 1.1 ms. Metodologi yang dilakukan meliputi beberapa tahapan diantaranya membuat model geometri dan grid-nya menentukan model kondisi operasi kondisi batas parameter dan hidrodinamika pada fluidized bed dryer. Dari hasil simulasi yang dilakukan diperoleh pola aliran udara dalam fluidized bed tanpa internal heater lebih stabil dibandingkan dengan fluidized bed yang menggunakan internal heater. Untuk fluidized bed yang menggunakan internal heater tidak menunjukan penambahan tinggi bed yang signifikan sebelum dan sesudah dialirkan udara sebesar 1.1 ms sedangkan fluidized bed tanpa internal heater mengalami ekspansi bed dari 390 mm menjadi 454 mm.


ABSTRACT

This research aims to study the effect of the presence of an internal heater and other variations of properties - properties . Problem-solving efforts in this research study will be conducted through the use of simulation -based method of Computational Fluid Dynamic CFD . CFD -based simulations which take into account the pattern of fluid flow simultaneously capable of presenting detailed information about what is happening in the fluidized bed dryer . A detailed description of the particle distribution profile flow velocity concentration at any point in the fluidized bed dryer provide alternative solutions to determine the condition fluidization in a fluidized bed dryer . Geometry of fluidized bed dryer is used with long tubular cylindrical fluidized bed dryer 1370 mm 152 mm diameter cylinder and use heater bundle in it . Materials used in this study of pulverized coal with coal type Buckheart where the particle size is considered monodispers with particle size of 1.43 mm with supervicial velocity 1.1 ms . The methodology includes several steps performed are create a model of its geometry and grid determine the model operating conditions boundary conditions parameters and hydrodynamics in a fluidized bed dryer . From the results obtained by the simulation of airflow patterns in the fluidized bed without internal heater is more stable than the fluidized bed which uses an internal heater and the fluidized bed which uses an internal heater showed no significant increase bed height before and after the air flowed while fluidized bed without internal heater expanded bed of 390 mm to 454 mm .



KeywordsCFD; batubara; fluidized bed dryer; hidrodinamika
 
Subject:  Dinamika zat cair;Batu bara
Contributor
  1. Prof. DR. Ir. Sugeng Winardi, M. Eng
  2. DR. Tantular Nurtono, ST., M. Eng
Date Create: 03/02/2014
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-Undergraduate-23101150006348
Collection ID: 23101150006348
Call Number: RSK 662.623 Ard s


Source
Undergraduate Thesis of Chemical Engineering, RSK 662.623 Ard s, 2014

Coverage
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Copyright @2015 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




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  1.  ITS-Undergraduate-35400-2311105005_2311105015-abstract_id.pdf - 83 KB
  2.  ITS-Undergraduate-35400-2311105005_2311105015-abstract_en.pdf - 83 KB




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