Faradyta, Nimas (2016) Optimasi Geometri Split Ring Screen Wash Pump - Pltgu Pt. Pjb Up Gresik Dengan Metode Elemen Hingga. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
PLTGU memiliki sistem pendingin yang terdiri dari beberapa
peralatan yang saling mendukung.Salah satunya adalah screen
wash pump yang berguna untukmembersihkan travelling screen.
Dari data kegagalan selama beberapa tahun terakhir, sering
ditemukan permasalahan pada bagian screen wash pump yang
terjadi pada komponen split ring yang berfungsi sebagai
penghubung dua shaft dan meratakan permukaan sambungan.
Material yang digunakan yaitu stainless steel tipe 316.Komponen
ini memiliki umur pakai selama dua tahun tetapi hampir setiap
bulan pecah. Pada penelitian ini, dilakukan analisis statis dan
fatigue dengan menggunakan perangkat lunak untuk
mengevaluasi desain split ring yang ada agar dapat mengurangi
kegagalan serupa. Hasil simulasi menunjukkan bahwa distribusi
tegangan tertinggi pada desain intermediate joint screen wash
pump saat ini terletak di di ujung permukaan desain dengan
besar tegangan 316 MPa.Mekanisme kegagalan pada split ring
diduga akibat adanya getaran antara split ring dengan
intermediate shaft coupling. Mengingat dari beban torsi tidak
didapatkan tegangan yang signifikan. Desain intermediate joint
modifikasi mampu mengurangi daerah kritis yang sebelumnya
terlihat pada desain saat ini.
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PLTGU has a cooling system consisting of several devices that
support each other. One of them is the screen wash pump that is
useful for cleaning traveling screen. From the failuredata during
last few years, often found the problem on the part of screen wash
pump that occurs in a split ring, component that connecting the
two shafts and make the surface flush. The material used is
stainless steel type 316. These components have a life time for
two years but failure almost every month. In this study, an
analysis of the static and fatigue conducted using software to
evaluate split ring design in order to reduce similar failures. The
simulation results showed that the highest stress distribution at
the intermediate joint of screen wash pumpcurrentdesign is
located at the end of the design surface of 316 MPa.Failure
mechanismat split ring allegedly as a result of vibrations between
the split ring to the intermediate shaft coupling. The given torque
shows no significant stress obtained. Intermediate joint design
modification can reduce the critical areas that previously seen in
the current design.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | split ring, pompa, pemodelan elemen hingga, beban torsi, optimasi geometri |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 07 Nov 2019 06:47 |
| Last Modified: | 07 Nov 2019 06:47 |
| URI: | http://repository.its.ac.id/id/eprint/71640 |
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