Husainiy, Mirza Quanta Ahady (2014) Investigasi Karakteristik Aliran Fluida Dan Perpindahan Panas Pada Desain Helical Baffle Penukar Panas Tipe Shell And Tube Berbasis Komputasi Dinamika Fluida (Cfd). Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.
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Abstract
Telah dilakukan studi numerik pengaruh tipe baffle
segmental dan helical dengan variasi sudut baffle terhadap
karakteristik aliran fluida dan perpindahan panas dengan
menggunakan simulasi CFD. Penelitian ini bertujuan untuk
menganalisis karakteristik aliran, yaitu kecepatan aliran
fluida, temperature, koefisien perpindahan panas konveksi
dan pressure drop terhadap pengaruh geometri berupa
variasi tipe dan sudut baffle. Verifikasi dilakukan dengan
membandingkan hasil simulasi terhadap data kuantitatif
dari eksperimen Zhang dkk. (2011).
Analisis kualitatif ditunjukkan pada kontur dan vector
kecepatan, kontur turbulensi dan kontur temperatur.
Analisis kuantitatif ditunjukkan dengan peningkatan nilai
bilangan Reynolds, heat transfer rate, koefisien
perpindahan panas konveksi dan pressure drop oleh ketiga
variasi tipe baffle pada peningkatan debit aliran fluida.
Adanya turbulensi pada hasil simulasi meperlihatkan
adanya efek pengeblokan aliran akibat adanya baffle
dengan tipe yang berbeda. Hal ini menyebabkan
terbentuknya olakan aliran pada sisi shell. Vektor
kecepatan memberikan prediksi arah aliran terhadap
pengurangan temperature pada aliran fluida sisi shell.
Hasil analisis menunjukkan karakteristik perpindahan
panas dan aliran fluida terbaik diperoleh pada tipe helical
baffle dengan sudut baffle 7
0
dengan peningkatan koefisien
perpindahan panas konveksi sebesar 7.63 x 10
K dan
penggunaan baffle helical hanya cocok untuk jarak aliran
fluida yang lebih pendek karena akan menyebabkan
pressure drop bernilai sangat besar yaitu 137.26 Pa
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Numerical studies have been done about the influence of
segmental baffle type and helical baffle type with the variation of
baffle angles towards fluid flow characteristic and heat transfer
using CFD simulation. This study aims to analyze fluid flow
characteristic which is fluid flow velocity, temperature, heat
transfer coefficient and pressure drop towards the influence of
geometry such as variation of type and baffle angles. Verification
has done by compared simulation result towards quantitative data
from Zhang’s experiment.
Quantitative analyze has shown in the countour and
vector of velocity, turbulence countour and temperature countour.
Quantitative analyze has shown in the increasing of Reynolds
Number, heat transfer rate, heat transfer coefficient and pressure
drop by the all three variations of baffle type in the increasing of
fluid flow rate. The presence of turbulence in simulation result
has shown us about flow-blocking effect due to the different type
of baffle. This led to the formation of Eddy flow on the shell side.
Velocity vector gives a prediction about fluid flow directions
towards the reductions of fluid flow temperature in shell side.
Analytical result shown the best characteristic of heat
transfer and fluid flow obtained on helical baffle type with baffle
angle 7
0
with the increased heat transfer coefficient of 7.63 10
6
2
W/m
K and the applications of this baffle only suitable for smaller
fluid flow distance because it will cause a large pressure drop
which shown in the simulation is 137.26 Pa
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSF 621.402 5 Hus i |
| Uncontrolled Keywords: | segmental baffle, helical baffle, CFD, karakteristik aliran fluida, karakteristik perpindahan panas |
| Subjects: | Q Science > QC Physics > QC320 Heat transfer T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 21 Sep 2020 03:30 |
| Last Modified: | 21 Sep 2020 03:30 |
| URI: | http://repository.its.ac.id/id/eprint/81993 |
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