Prasetiyo, Gigih (2016) Penilaian Risiko Dan Perencanaan Inspeksi Pada Sistem Perpipaan Menggunakan Metode Risk Based Inspection DNV-RP-G101. Undergraduate thesis, Institut Technology Sepuluh Nopember.
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Abstract
Industri kimia yang semula memanfaatkan batu bara. Sejak abad
20 memanfaatkan cairan atau gas hidrokarbon sebgai bahan baku.
Cairan atau gas hidrokarbon oleh karena pengaruh lingkungan
yang tidak termonitor, misalnya adanya air, terkontaminasi
dengan elemen korosif, perubahan temperatur operasi yang
melampaui batas toleransi, dan lain sebagainya dapat
mempercepat terjadinya berbagai jenis peristiwa korosi seoerti
general corrosion, stress corrosion cracking, pitting, dan korosi
jenis lainnya.
Aktivitas perawatan pada area plant adalah salah satu hal
terpenting dalam memelihara keutuhan asset. Pada kasus sistem
perpipaan dan bejana bertekanan, penurunan fungsi pada suatu
asset disebabkan oleh degradation mechanisms akibat korosi yang
bisa dideteksi oleh inspeksi diantarnya corrosion uninsulation,
sand erosion, water corrosion, MIC, CO2 corrosion, dan H2S
corrosion.
Risk Based Inspection (RBI) adalah pendekatan yang sistematis
dan terstruktur untuk pengembangan inspeksi berdasarkan profil
risiko pada suatu asset. Ada banyak standar yang berhubungan
x
dengan RBI. Salah satu standarnya yang digunakan untuk sistem
perpipaan yang dipasang pada offshore platform adalah DNV-RPG101.
Karya tulis ini mendiskusikan studi kasus yang
diimplementasikan oleh DNV-RP-G101 pada pemasangan pipa
diatas offshore platform. Hasil studi dari thesis ini berupa optimasi
perencanaan inspeksi untuk sistem perpipaan berdasarkan profil
risiko dari tiap-tiap degradation mechanisms. Untuk corrosion
uninsulation memiliki medium risk level dengan time to inspection
1,1 tahun, sand erosion memiliki high risk level dengan time to
inspection 2,8 tahun, water corrosion memiliki high risk level
dengan time to inspection 1 tahun, MIC memiliki low risk level
dengan time to inspection 14,3 tahun, CO2 corrosion memiliki
high risk level dengan time to inspection 6,4 tahun dan H2S
corrosion memiliki high risk level dengan time to inspection 4,8
tahun.
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The chemical industries originally harness/exploit coal. Since the
20th century, they harness/exploit liquid or hydrocarbon gas as raw
material. The liquid or hydrocarbon gas is caused by
environmental effect which is unmonitored, for instance; water that
is contaminated with corrosive elements and the changes in
operating temperature that goes beyond the limits of tolerance
which can speed up the occurrence of various types of events
corrosion, such as general corrosion, stress corrosion cracking,
pitting, etc.
The maintenance activity in the plant area is one of the most
important things in maintaining the integrity of an asset. In the case
of piping systems and pressure vessels, the decreasing function in
the asset is caused by degradation mechanisms due to corrosion
that can be detected by inspection, such as corrosion uninsulation,
sand erosion, water corrosion, MIC, CO2 corrosion, and H2S
corrosion.
Risk based inspection (RBI) is systematic and structured approach
that is used to develop the inspection based on the risk profile in
an asset. There are so many standards which are related to RBI.
xii
One of the standards in piping systems which is assembled on
offshore platform is DNV-RP-G101. This paper discusses the case
that is implemented by DNV-RP-G101 at the pipe installation on
the offshore platform. The result of this thesis is inspection
planning optimization for piping system based on the risk profile
from every degradation mechanisms. For corrosion uninsulation
has medium risk level with time to inspection 1,1 years, sand
erosion has high risk level with time to inspection 2,8 years, water
corrosion has high risk level with time to inspection 1 year, MIC
has low risk level with time to inspection 14,3 years, CO2
corrosion has high risk level with time to inspection 6,4 years, and
H2S corrosion has high risk level with time to inspection 4,8 years.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSSP 621.867 2 Pra p |
| Uncontrolled Keywords: | Perencanaan Inspeksi, RBI, Sistem Perpipaan, PoF, CoF |
| Subjects: | V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM293 Shipping--Indonesia--Safety measures |
| Divisions: | Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 17 Jan 2020 08:07 |
| Last Modified: | 17 Jan 2020 08:07 |
| URI: | http://repository.its.ac.id/id/eprint/72720 |
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