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All Journal Jurnal Teknik ITS International Journal of Marine Engineering Innovation and Research Sewagati

Priyanta, Dwi

Departemen Teknik Sistem Perkapalan Institut Teknologi Sepuluh Nopember Surabaya

Author-ID : 2776269

Arts Humanities Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Evacuation Analysis of 1200 GT Passenger Ship in Case of Fire using Agent-Based Modeling Approach Zaman, Muhammad Badrus; Priyanta, Dwi; Afrianza, Ilham
International Journal of Marine Engineering Innovation and Research Vol 1, No 1 (2016)
Publisher : Institut Teknologi Sepuluh Nopember

This study discusses about safety on board especially during fire condition. During fire, all passengers and crew had to beevacuated into safe place. The study observe at 1200 GT passenger ships, a typical ship which have small dimension vessel characteristic but able to carry passenger more than four hundred persons and also could containt cargo. When the ship was on fire at any circumstances that requires passengers need to be evacuated, itâ€™s obvious that there will be a buildup of passengers when passing through stairs and corridors. The calculation use to estimate evacuation time required based on the IMO guidelines. Studies continued by creating evacuation simulation using Agent-Based Modeling, a simulation modeling that assume human being as an agent that has characteristics resemble to real state of motion. The comparation between the two methods, calculation and simulation are both using two scenarios, day and night conditions. Result show that the simulation generates evacuation time shorter than the calculation method. In the numerical calculation takes 689 seconds and 1595 seconds in day and night conditions, while in the simulation process takes 548 seconds and 1374 seconds in day and night conditions sequentially. This studies also followed by fire modeling study that aims to determine the spread of heat and smoke produced from fire. On the condition of fire, smokewords. production will interfere passengers in the evacuation process. The evacuation time becomes longer and estimates the potential victims affected by fire.

The Implementation of Norsok Z-008 for Equipment Criticality Analysis of Gas Central Processing Plant Priyanta, Dwi; Siswantoro, Nurhadi; Zaman, Muhammad Badrus; Prasetyo, Dimas Fajar
International Journal of Marine Engineering Innovation and Research Vol 4, No 1 (2019)
Publisher : Institut Teknologi Sepuluh Nopember

The gas central processing plant as a facility used to process natural gas had a variety of components that were so complex and many in number. To reduce the risk of failure of these components it was necessary to carry out maintenance. But it would be very inefficient if all the components were treated at the same level, considering that there were so many and the human resources that were owned were very limited. Therefore, in taking care of these components it was necessary to prioritize them according to their critical level. In this research, in determining the critical level of a component using risk-based methods according to the available standards, namely NORSOK Z-008. By making a hierarchy and asset level register of all components, then the value of the probability rating and consequence rating was determined. So that the criticality ranking of each component was obtained according to the criticality risk matrix that was converted from the company's risk matrix, so that the critical level of the component was obtained in the levels of H (high), M (medium), and L (low). With the critical level of this component, the company did not need to take care of all the components. In this research, there was 33 equipment with 140 subunits/subsystems, and the total number of components was 674. Of the 674 components as many as 28 components had a critical level of H (high), 192 components had a critical level M (medium), and 454 components had L critical level (low) of each critical level that has been obtained, it is not necessary to carry out maintenance with the same level to all components. In this research, every component that has H (high) criticality level will be treated as a Preventive Maintenance, while a component with a critical level of M (medium) will be Preventive Maintenance if needed, and a component with L critical level (low) will be treated Corrective Maintenance.

Implementasi Discrete Event Simulation untuk Analisis Evakuasi Penumpang Kapal Ro-Ro Pada Kondisi List dan Normal Angga Angga Praditya; Trika Trika Pitana; Dwi Dwi Priyanta
Jurnal Teknik ITS Vol 3, No 1 (2014)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Menurut data dari Komisi Nasional Keselamatan Transportasi (KNKT), dari tahun 2009 hingga tahun 2011 terjadi peningkatan terjadinya kecelakaan transportasi laut, baik karena kapal tenggelam, tubrukan maupun karena kapal terbakar. Selama rentang tahun tersebut, sebanyak 658 orang meninggal dunia dan 568 orang mengalami luka. Penyebab kecelakaan tersebut dikarenakan masalah teknis sebesar 51% dan 49% karena human error. Oleh karena itu perlu diberikan rekomendasi kepada para pihak terkait untuk meminimalisir terjadinya kecelakaan transportasi laut. Selama ini analisis evakuasi yang digunakan untuk mengevaluasi evakuasi penumpang dan kru kapal menggunakan data kecepatan berlari yang dikeluarkan oleh International Maritime Organization (IMO) di dalam IMO MSC.1/Circ.1238. Para peneliti yang lain mayoritas menggunakan objek penelitian dari amerika maupun eropa sesuai dengan negara mereka berasal, yang mana karakteristik penduduk dan kondisi sarana transportasinya berbeda jauh dengan Indonesia dan negara-negara di kawasan Asia Tenggara. Di penelitian ini akan dilakukan eksperimen kecepatan berjalan penumpang Indonesia saat di kapal. Kemudian hasil eksperimen tersebut digunakan sebagai bahan analisis evakuasi penumpang di kapal untuk mengetahui apakah waktu evakuasi total masih memenuhi standar yang ditetapkan oleh IMO pada IMO MSC.1/Circ.1238. Evakuasi siang hari pada kondisi list tidak sesuai dengan aturan IMO MSC.1/Circ.1238 sehingga perlu diberikan rekomendasi rute evakuasi dan skenario distribusi penumpang. Rekomendasi prosedur keselamatan diberikan sebagai saran dan masukan bagi para awak kapal dalam melakukan proses evakuasi dengan harapan bisa meminimalisir terjadinya korban jiwa.

Analisis Remaining Life dan Penjadwalan Program Inspeksi pada Pressure Vessel dengan Menggunakan Metode Risk Based Inspection (RBI) Dyah Arina Wahyu Lillah; Dwi Priyanta; Dhimas Widhi H
Jurnal Teknik ITS Vol 5, No 2 (2016)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23373539.v5i2.19100

Seiring perkembangan eksplorasi minyak dan gas bumi di dunia, perusahaan minyak dan gas di Indonesia juga turut berlomba-lomba untuk mendapatkan ladang minyak dan gas bumi sebanyak-banyaknya. Perkembangan ini turut dipengaruhi oleh aturan-aturan pemerintah mengenai keselamatan dan pencegahan bahaya baik pada unit yang dikelola maupun tenaga kerja pengelola. Untuk itu semua perlatan-peralatan (unit kerja) harus dijamin kehandalaannya agar tidak menimbulkan bahaya baik bagi pekerja maupun lingkungan. Subjek penelitian dalam tugas akhir ini ialah pada pressure vessel yang dimiliki oleh Terminal LPG Semarang. Kemungkinan bahaya yang dapat menyebabkan kerusakan pada pressure vessel perlu dianalisis agar dapat meminimalkan resiko yang akan terjadi. Metode Risk Based Inspection (RBI) diharapkan dapat meminimalkan resiko yang ada pada pressure vessel. Penilaian resiko dalam tugas akhir ini mengacu pada standar API RP 581. Untuk mengetahui besarnya resiko yang ada pada plant, maka terlebih dahulu harus dihitung besarnya probabilitas kegagalan dan konsekuensi apabila terjadi kegagalan. Langkah selanjutnya ialah membandingkan besarnya resiko yang didapat dengan target resiko yang dimiliki oleh perusahaan. Dari hasil perbandingan ini dapat diketahui tingkat resiko pressure vessel, sehingga dapat ditentukan jadwal inspeksi dan metode inspeksi yang tepat.

Scheduling Program Analysis of Pressure Relief Device (PRD) According to RBI API 581 on Production Gas Separator System Dwi Priyanta; Nurhadi Siswantoro; Muhammad Saifulloh
International Journal of Marine Engineering Innovation and Research Vol 3, No 1 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

Pressure relief device serves to control and limit the pressure by directing the flow into an additional path. In the process of purification of oil and gas, application of PRD are found in production gas separator system. However, based on API 581, the PRD also has a risk of failure that every oil and gas company needs to conduct regular inspections to ensure the reliability of PRD. One approach to evaluating critically the PRDs for arranging and scheduling programs is to use the risk-based inspection (RBI) method. The RBI is a systematic approach to the method of inspection management of equipment or works unit based on the level of risk that the equipment or work units. Risk assessment for production gas separator system’s PRD has based on API RP 581 third edition. After knowing the level of risk for PRD, the risk needs to be evaluated. For acceptable risk, it can be used as a reference to determine the next inspection until risk target. Meanwhile, unacceptable risk should be inspected immediately after RBI analysis.

Analysis of the Suppression Device as Vortex Induced Vibration (VIV) Reducer on Free Span using Finite Element Method Dwi Priyanta; Anang Abdullah
International Journal of Marine Engineering Innovation and Research Vol 1, No 1 (2016)
Publisher : Institut Teknologi Sepuluh Nopember

Subsea pipeline is a transportation infrastructure of oil and gas as an alternative for ship tanker. The uneven topography surface of the sea floor resulting the pipe undergoes free span. The free span is a condition endured by the pipe where the pipe position has distance or gap with the seabed supported by two pivot. The free span is at risk of experiencing a vibration caused by the presence of dynamic load that is current and the wave. The vibration that occurs is the impact of the presence of the phenomenon of Vortex Induced Vibration (VIV). The Phenomenon Of VIV occur on a cylindrical component caused by ocean currents, causing the occurrence of vibration by the movement of fluid on the pipe so that it raises the vortex at the rear of the direction of oncoming flow. One way to dampen or reduce the impact of VIV is by adding suppresion device. VIV suppression device is a tool that is installed on the pipeline on offshore piping installationcthat serves to dampen or reduce the impact of VIV. One of the simulations used to know the characteristics of a fluid is to use (CFD) Computational Fluid Dynamic. With the addition of suppression device can add the rest of the operating time on a free span of affected VIV, on the condition of free span critical exposed VIV (Vortex Induced Vibration value) has a life time on plain pipe 44.21 years, on pipe with 53.09 years and Fairing on the pipe with the Helical strike 52.95 year.

Implementation of Reliability Centered Maintenance Method for the Main Engine of Tugboat X to Select the Maintenance Task and Schedule Dwi Priyanta; Nurhadi Siswantoro; Madina Nur Pratiwi
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Tugboat is the supporting system that plays an essential role in port. A tugboat used for maneuvering, primarily pulling or pushing bigger vessel in open seas or river to be able to lean in port. PT.X known as a company has a prominent business field in provides such as tugboat. On the PT. X Annual Report of 2018 reported several cases that caused that related to the reliability of the main engine. The failure occurred on the main engine, affected commission days targeted was not achieved. Reliability-Centered Maintenance (RCM) is a maintenance method that focused on elevating the reliability of a component in the system(s). RCM used a risk management principle to determine the maintenance task and schedule appropriately. RCM process implemented using the Guide for Survey Based on Reliability-Centered Maintenance (RCM) by the American Burau of Shipping (ABS). Based on the results of this research, there were 38 task list type which is obtained based on the analysis of maintenance task allocation and planning. The percentage of maintenance types from each failure mode (task type) Preventive Maintenance (PM) is 29%, Condition Monitoring (CM) is 29%, Finding Failure (FF) is 21% and One-Time Change (OTC) is 21%. Work package for each interval is created from every failure mode for each interval for maintenance/inspection.

Inspection Scheduling Programs Analysis of Amine Reboiler Heat Exchanger Using Risk-Based Inspection API 581 Method Khoirunnisa Mahdiyah Syawalina; Dwi Priyanta; Nurhadi Siswantoro
International Journal of Marine Engineering Innovation and Research Vol 5, No 4 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

In the oil and gas industry, the purification and handling of oil and petroleum gas, the cycle of warmth transformation is expected to isolate the H2S and CO2 from natural gas with an amine. The cycle happens inside the amine reboiler which is a shell and tube heat exchanger type. Cycle liquid streaming in the Amine Reboiler are Lean Amine on the shell side (HEXSS) and Therminol-55 on the cylinder/tube side (HEXTS). With such synthetic arrangement, worked with high weight and temperature, makes the liquid into a destructive climate for Amine Reboiler. Along these lines, an exact review and planning program is needed to guarantee equipement’s life, guaranteeing the protected establishment and wellbeing of laborers. Thus, it is important to direct a danger assessment for shell and tube heat exchanger gear utilizing the Risk-Based Inspection technique which alludes to the API RP 581. The danger of Amine Reboiler is a mix of the Probability of Failure (PoF) and the Consequence of Failure (CoF). From the PoF and CoF acquired, the HEXSS hazard level on the danger lattice at the RBI date and RBI plan date are ordered as Low Risk and Medium Risk. While the danger level of HEXTS on danger network at RBI date and RBI plan date both are ordered as Medium-High Risk. At that point the prescribed date to do the assessment is January 1, 2020.

Risk Based Inspection of Gas-Cooling Heat Exchanger Dwi Priyanta; Nurhadi Siswantoro; Alfa Muhammad Megawan
International Journal of Marine Engineering Innovation and Research Vol 1, No 4 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

On October 2013, Pertamina Hulu Energi Offshore North West Java (PHE – ONWJ) platform personnel found 93 leaking tubes locations in the finfan coolers/ gas-cooling heat exchanger. After analysis had been performed, the crack in the tube strongly indicate that stress corrosion cracking was occurred by chloride. Chloride stress corrosion cracking (CLSCC) is the cracking occurred by the combined influence of tensile stress and a corrosive environment. CLSCC is the one of the most common reasons why austenitic stainless steel pipework or tube and vessels deteriorate in the chemical processing, petrochemical industries and maritime industries. In this thesis purpose to determine the appropriate inspection planning for two main items (tubes and header box) in the gas-cooling heat exchanger using risk based inspection (RBI) method. The result, inspection of the tubes must be performed on July 6, 2024 and for the header box inspection must be performed on July 6, 2025. In the end, RBI method can be applicated to gas-cooling heat exchanger. Because, risk on the tubes can be reduced from 4.537 m2/year to 0.453 m2/year. And inspection planning for header box can be reduced from 4.528 m2/year to 0.563 m2/year.

Implementation of Risk-Based Inspection (RBI) in Condensate Separator and Storage Vessel: A Case Study Nurhadi Siswantoro; Dwi Priyanta; Jamal Ramadhan
International Journal of Marine Engineering Innovation and Research Vol 6, No 1 (2021)
Publisher : Institut Teknologi Sepuluh Nopember

In the processing of oil and gas, a pressure vessel is an important piece of equipment. It needs a method to prevent the failure of the pressure vessel. The Risk-Based Inspection (RBI) is a systematic approach to the inspection management method for equipment based on the level of risk. RBI is expected to provide sufficiently accurate recommendations to prevent equipment failures. In this research, the objects to be carried out are the 10V2102 condensate separator and the 10V2103 condensate storage vessel. According to RBI analysis, the risk category of the current RBI date is low risk for the condensate separator 10V2102 and condensate storage vessel 10V2103. Meanwhile, the inspection date of Condensate Separator 10V2102 is 2 April 2026 and 11 February 2027 for Condensate Storage Vessel 10V2103 and selected inspection methods are Visual Testing, Ultrasonic Testing (UT), Radiography Test (RT), Eddy Current Test, and Magnetic Particle Inspection.

Co-Authors Afrianza, Ilham Afrianza, Ilham Alfa Muhammad Megawan Anang Abdullah Angga Angga Praditya Aydin Doğan Dhimas Widhi H Dimas Fajar Prasetyo Dyah Arina Wahyu Lillah Hari Prastowo Jamal Ramadhan Khoirunnisa Mahdiyah Syawalina Madina Nur Pratiwi Muhammad Badrus Zaman Muhammad Saifulloh Nurhadi Siswanto Prasetyo, Dimas Fajar Semin Semin Trika Pitana

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