Studi Karakteristik Fluidisasi Dan Aliran Dua Fase Padat- Gas (Pasir Besi- Udara) Pada Pipa Lurus Vertikal
| Main Author: | Perpustakaan UGM, i-lib |
|---|---|
| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Laboratorium aekologi Fak. Biologi UGM
, 2006
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/21670/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=4540 |
Daftar Isi:
- Fluidization and solid � gas flow have been applied in many industrial devices, e.g. fluidized bed combustor, cyclone pre-heater, electrostatic precipitator, pneumatic conveyor and solid-fuel drying installation. This research is aimed to investigate the characteristics of fluidization and solid � gas flow of iron sand � air in a vertical tube. The iron sand particles were placed in 24 mm I.D. bed column and blown by air which had 1,0 � 1,1 kg/cm' in pressure and 28,75°C in average temperature. They were lifted and moved along the column. There were given some variation, i.e. bed height, particle's size, hole's number of the grid and superficial velocity. Pressure drop was measured by using water column manometer. Results of this research were compared to the theoretically estimation. Result shows that the minimum fluidization velocity for particles whose mean diameter of 0,1896 mm and 0,3103 mm occurs in range of 0,13 - 0,2 m/sec. Pressure drop gradient of minimum fluidization are found in range of 18 � 24 kPa/m. While, the terminal velocity occurs at 1,8 � 2,0 m/sec. Keywords: fluidization, solid-gas flow, iron sand - air, vertical straight tube, air superficial velocity, pressure drop