Widayati, Tunjung Wahyu and Hermawan, Yulius Deddy (2007) KARAKTERISTIK PENCAMPURAN PADA TANGKI HORIZONTAL BERPENGADUK (THB). In: Prosiding Semnas Teknik Kimia "Kejuangan" 2007 Pengembangan Teknologi Kimia Untuk Pengolahan Sumber Daya Alam Indonesia, 30 Jan 2007, Jurusan Teknik Kimia FTI UPN "Veteran" Yogyakarta.
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Abstract
The horizontal tank is widely used in most industrial processes, for example as an accumulator, a surge tank, or mixer tank. The agiation is also implemented to accelerate the heat and mass transfer processes. This achieved by introducing energy into the vessel with the aid of rotating impeller and converting this energy into hydrodynamic motion. Therefore, a detailed understanding of the hydrodynamics of these vessels (velocity fields, turbulence, etc) is essential for the optimum design of the stirred horizontal tank (SHT). Since the rule of thumb for designing of SHT is rarely given ( may be nothing ), research to study the mixing characteristic in SHT is very important to provide a significant guideline of its optimum design. The goals of this work are to design SHT with various configurations, to examine the ability of each configuration to achieve uniform characteristic, and to study the relationship between Reynolds and Power Number. In this work, a sight glass with horizontal cylinder geometry is used. The vessel volume is about 2 L. The ratio of vessel diameter and length is 2/3. Propeller and turbine are chosen as impellers. Discoloration technique is implemented to find a mixing time in each vessel configuration. The impeller speed is varied, i.e. 250 rpm, 500 rpm, and 750 rpm. The clearances [C] are 1/4 , 2/4, and 3/4. The ratio of impeller and vessel length [Di/L] are 1/4 , 1/3, and 1/2. This research result 18 physical models of SHT. This study reveals that the designed SHT with six blade turbine impeller, Di/L = 1/2, and C=3/4 is the optimum one since this configuration could result the lowest mixing time. The relationship of Power Number (Po) and Reynolds number (Re) is Po = 1.07 x 105 Re -0,78 . Keyword : Stirred Horizontal Tank ( SHT ) , Mixing Time, Discoloration
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Stirred Horizontal Tank ( SHT ) , Mixing Time, Discoloration |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Ir.,MT Tunjung Wahyu Widayati |
| Date Deposited: | 10 Aug 2020 05:03 |
| Last Modified: | 10 Aug 2020 05:05 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/23331 |
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