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All Journal Jurnal Sains Teknologi Transportasi Maritim Indonesian Journal of Computing, Engineering, and Design Maritime Park: Journal Of Maritime Technology and Socienty Prosiding SNTTM
Santoso, Muhammad Agung
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Return On Investment Of An Open Loop Wet Scrubber On A Dry Bulk Carrier Muzhoffar, Dimas Angga Fakhri; Prasetio, Mathias Bimo; Santoso, Muhammad Agung; Nugraha, Muhammad Irfan Septian; Jamil, Muhamad Sabran
Nama Jurnal Akmi Vol 6 No 2 (2024): Jurnal Sitektransmar November 2024
Publisher : LPPM AKMI SUAKA BAHARI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51578/j.sitektransmar.v6i2.97

Abstract

With the increasing global focus on emission reduction in the maritime industry, this study evaluates the decision to implement an Open Loop Wet Scrubber system on a 50,000 DWT Bulk Carrier. The primary objectives of this research are to assess the role of scrubbers in supporting operational efficiency and compliance with MARPOL Annex VI regulations, to determine the optimal timing for scrubber installation to minimize financial risks before ship retirement and to compare the economic efficiency of using scrubbers with high sulfur fuel oil (HSFO) against using low sulfur fuel oil (LSFO) without scrubbers. Through operational simulations on coastal and ocean-going routes, the analysis identifies potential savings, calculates return on investment (ROI), and determines the break-even point (BEP). The results indicate that the installation of an Open Loop Wet Scrubber offers significant long-term savings, with the payback period varying based on route selection and fuel strategy. This research provides critical insights for shipping companies seeking to enhance their competitiveness by balancing compliance with environmental regulations and operational efficiency.
Fire Safety Assessment of a Typical Sports Hall Building Based on Fire Dynamics and Crowd Movement Models Thareq, Achmad Efrizal; Purnomo, Dwi Marhaendro Jati; Auzani, Ahmad Syihan; Nugroho, Yulianto Sulistyo; Santoso, Muhammad Agung
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 6 No. 2 (2024): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v6i2.458

Abstract

Fire risk analysis is one of the essential components of building design to ensure the safety of occupants and properties in case of fires. Currently, the Ministry of Public Works and Housing Regulation No. 20/PRT/M/2009 provides guidelines for conducting a fire risk analysis, however, without a clear consideration of fire dynamics in the estimation of the fire risk level. In this work, we investigate the fire safety aspects of a typical sports hall buildings by a fire dynamics deterministic model (Fire Dynamics Simulator (FDS) of the National Institute of Science and Technology, USA) and crowd movement model for occupant evacuation (Pathfinder of Thunderhead Engineering). Systematic investigations were made on the effects of the fire growth category and smoke extraction system on the Available Safe Egress Time (ASET). The results of ASET were then compared to the Required Safe Egress Time (RSET) which is obtained from the evacuation model. Our results suggest that ASET decreases exponentially with fire growth rate, especially from slow to medium growth rate. The fire growth rate significantly affects the acceptable fire risk of ASET longer than RSET. Occupant capacity, fire management systems, and smoke extraction systems play important roles in reducing fire risk. However, as the fire growth rate increases, the effects of smoke extraction in maintaining safe conditions diminish. This study provides recommendations to reduce risks to the occupants in case of fire, contributing to the considerations of the design and management of a typical sports hall building.
Monte Carlo-Based Risk Probability Modeling for Ship Incident Muzhoffar, Dimas Angga Fakhri; Tumenggung, Teddy; Riadi, Achmad; Budiyanto, Muhammad Arif; Santoso, Muhammad Agung
Maritime Park: Journal of Maritime Technology and Society Volume 4, Issue 3, 2025
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.vi.46416

Abstract

The shipping industry, a critical component of global logistics, faces persistent operational risks that threaten safety, environmental integrity, and economic stability. Traditional risk assessments, often reliant on descriptive statistics, fail to capture the probabilistic and multifaceted nature of maritime accidents. This study bridges this gap by developing a robust Monte Carlo simulation framework to quantify incident probabilities for a tanker fleet. Utilizing a comprehensive dataset from a shipping company, including incident reports, tanker characteristics, and root causes, the model iteratively samples operational and technical variables up to 50,000 iterations to project risk distributions and identify critical failure pathways. The results demonstrate that risk is highly contextual and not an intrinsic tanker property. The analysis reveals that mid-sized tankers (20,000–35,000 GT) are most susceptible to technical failures like propulsion and auxiliary machinery breakdowns, aligning with their high risk for asset loss and security breaches. Conversely, larger tankers (> 60,000 GT) exhibit systematically lower risk across most categories, which is attributed to advanced safety systems and stricter protocols. A notable exception is environmental risk, where smaller tankers (≤ 5000 GT) pose the lowest threat due to their limited spillage potential. The simulation achieved convergence at 10,000 iterations for personnel injury and security breach incidents, and 5000 for asset loss and environmental impacts, providing a validated threshold for reliable prediction. This study concludes that the Monte Carlo method effectively translates historical data into actionable insights, enabling proactive, precisely timed mitigations tailored to specific tanker profiles and incident types. The findings offer a paradigm shift from reactive to predictive risk management in maritime operations.
Analisis pengaruh penggunaan genset tambahan terhadap konsumsi bahan bakar pada kapal Ro-Ro 3500 DWT Muzhoffar, Dimas Angga Fakhri; Santoso, Muhammad Agung; Riadi, Achmad; Nunni, Raffa Bainan; Wiambodo, Arindra Nur Rakhman
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/w96h4a73

Abstract

Dalam industri perkapalan Indonesia, kapal bekas pakai sering kali menjadi pilihan untuk rute tertentu. Kapal-kapal ini kerap dioperasikan melampaui umur ekonomisnya. Kondisi ini mengakibatkan pola operasional yang tidak lagi sesuai dengan spesifikasi mesin bantu (AE), khususnya pada mode idle saat menunggu berlabuh, di mana beban listrik jauh di bawah rentang optimal AE. Sebagai solusi, dilakukan retrofit dengan menginstal genset tambahan (GT) berdaya lebih kecil. Penelitian ini menganalisis data historis konsumsi bahan bakar sebelum dan setelah retrofit untuk mengevaluasi keefektifan langkah tersebut. Hasilnya menunjukkan penghematan bahan bakar yang signifikan. Pendekatan teoritis berdasarkan spesifikasi teknis mesin mengungkap bahwa sebelum retrofit, AE beroperasi di luar area efisiensi optimalnya akibat usia ekonomisnya. Sementara, GT yang masih baru, beroperasi pada rentang beban yang sesuai dengan spesifikasinya, sehingga konsumsi bahan bakarnya lebih efisien. Temuan penelitian ini memberikan kerangka kerja praktis untuk mengidentifikasi ketidakefisienan operasional mesin. Hasil dan pembahasan yang disajikan diharapkan dapat menjadi acuan dalam pemetaan parameter operasi, optimasi kinerja mesin, dan perencanaan retrofit. Akhirnya, penelitian ini diharapkan dapat menjadi panduan bagi operator kapal dalam menyusun strategi operasi yang berkelanjutan, termasuk pengendalian konsumsi bahan bakar dan penetapan target reduksi emisi.
Evaluasi keselamatan kebakaran kendaraan bermotor Nugroho, Yulianto Sulistyo; Nugroho, Reza Adyanto; Adhitya, Mohammad; Santoso, Muhammad Agung
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/qmde8743

Abstract

Risiko kebakaran kendaraan bermotor terus meningkat sejalan dengan meningkatnya populasi kendaraan bermotor serta mobilitas masyarakat. Kebakaran kendaraan bermotor dapat terjadi di perjalanan, di stasiun pengisian bahan bakar umum atau di dalam bangunan saat kendaraan di parkir. Kebakaran kendaraaan bermotor bukan saja menimbulkan kerusakan pada kendaraan, bangunan gedung parkir, tetapi juga dapat mengakibatkan cidera bahkan fatalitas penumpang kendaraan bermotor tersebut. Risiko kebakaran kendaraan bermotor baik berupa kendaraan dengan mesin pembakaran dalam (internal combustion engine - ICE) atau kendaraan listrik (electric vehicle – EV) ditandai dengan laju pelepasan kalor (heat release rate) akibat terbakarnya komponen / bahan mampu bakar yang ada di dalam kendaraan, maupun terbakarnya bahan bakar atau baterei sebagai sumber energi penggerak utama kendaraan bermotor. Untuk memberikan Gambaran mengenai risiko kebakaran kendaraan bermotor, makalah ini menyajikan metode pengukuran laju pelepasan kalor, kaji literatur hasil pengukuran eksperimental, dan evaluasi keselamatan kebakaran kendaraan bermotor sebagai upaya meningkatkan kepedulian dan keselamatan masyarakat pada umumnya.   
Analisis multi-kriteria bahan bakar rendah sulfur untuk mesin diesel kapal tanker: Kinerja, emisi, dan biaya Budiyanto, Muhammad Arif; Hanin Safiya; Santoso, Muhammad Agung
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/c7mkyj59

Abstract

Masalah pencemaran lingkungan akibat aktivitas transportasi laut menjadi perhatian utama bagi International Maritime Organization (IMO) dan para pemangku kepentingan. Untuk mengurangi dampak negatif emisi dari kapal terhadap kualitas udara, IMO menetapkan regulasi global melalui MARPOL 73/78. Penelitian ini menggunakan pendekatan komparatif untuk mengevaluasi efektivitas empat jenis bahan bakar berdasarkan kinerja mesin, tingkat emisi, dan aspek biaya. Analisis dilakukan melalui simulasi menggunakan perangkat lunak Diesel-RK serta perhitungan manual pada mesin diesel laut empat langkah tipe C32 ACERT yang umum digunakan pada kapal tanker minyak. Keempat jenis bahan bakar yang diuji, yakni High Sulfur Fuel Oil (HSFO), Low Sulfur Fuel Oil (LSFO), Ultra-Low Sulfur Fuel Oil (ULSFO), dan Biosolar B30, memiliki kadar sulfur yang berbeda namun digunakan pada mesin yang sama. Secara umum, HSFO merupakan bahan bakar dengan harga paling ekonomis dibandingkan ketiga bahan bakar lainnya. Hasil penelitian menunjukkan bahwa Biosolar B30 memberikan performa mesin tertinggi dengan capaian sebesar 88,88%. Dari sisi emisi, ULSFO menunjukkan tingkat emisi NOx dan SO₂ paling rendah, masing-masing dengan persentase rata-rata 39,1% dan 0,02% dibandingkan emisi tertinggi. Sementara itu, untuk emisi CO₂, Biosolar B30 menghasilkan emisi paling rendah dengan rata-rata pengurangan sebesar 90%. Di sisi lain, dari aspek biaya operasional tanpa penggunaan scrubber, Biosolar B30 tercatat sebagai bahan bakar dengan harga tertinggi, yakni sebesar 77% dari total biaya operasional.
Co-Authors Auzani, Ahmad Syihan Budiyanto, Muhammad Arif Hanin Safiya Jamil, Muhamad Sabran Mohammad Adhitya, Mohammad Muzhoffar, Dimas Angga Fakhri Nugraha, Muhammad Irfan Septian Nugroho, Reza Adyanto Nunni, Raffa Bainan Prasetio, Mathias Bimo Purnomo, Dwi Marhaendro Jati Riadi, Achmad Thareq, Achmad Efrizal Tumenggung, Teddy Wiambodo, Arindra Nur Rakhman Yulianto Sulistyo Nugroho