Article Per Year (5 Year)
p-Index From 2021 - 2026
0.778
P-Index
This Author published in this journals
All Journal International Journal of Marine Engineering Innovation and Research Prosiding SNTTM
Dimas Angga Fakhri Muzhoffar
Universitas Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Multi-Objective Optimization for Topological Shipyard Facility Layout using NSGA-II Ghulam Tulus Pambudi; Gunawan; Dimas Angga Fakhri Muzhoffar; Wanda Rulita Sari
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 3 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i3.4908

Abstract

The increasing complexity in ship construction due to larger vessel sizes has placed significant pressure on the shipbuilding industry to enhance efficiency and reduce costs. This paper focuses on optimizing shipyard facility layouts by minimizing material handling costs (MHC) and area costs (AC) using a topological approach for unequal areas. The objective is to develop a layout that reduces these costs while addressing gaps in previous research, which often assumed uniform department sizes. The proposed method employs the Non-Dominated Sorting Genetic Algorithm-II (NSGA-II), a heuristic algorithm designed for multi-objective optimization. Unlike previous models, this approach allows for variability in department sizes, aligning more closely with real-world conditions. The layout optimization is conducted by considering adjacency and non-adjacency constraints, ensuring an effective arrangement of shipyard departments. The results demonstrate that the proposed method significantly reduces both MHC and AC, leading to a more efficient and cost-effective shipyard layout. The dual-objective approach not only narrows the gap between topological and geometric models but also optimizes space utilization within the shipyard, making it a practical solution for modern shipbuilding challenges.
Systematic Analysis of Potential Marine Renewable Energy for Coastal Ecological Balance on Bawean Island: A Review Wanda Rulita Sari; Gunawan Budiyanto; Adi Surjosatyo; Dimas Angga Fakhri Muzhoffar
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 2 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i2.4995

Abstract

Bawean Island displays significant natural potential with abundant natural resources and natural beauty that is attractive for tourism and industrial development. However, this potential is threatened by various environmental and socio-economic problems such as limited availability of clean water, erosion of coastal structures, accumulation of rubbish, economic challenges, and low levels of community education. To overcome these challenges, an integrated and sustainable approach is needed that involves the government, community, and other related parties in sustainable natural resource management and considers ecological, economic, and social aspects. Systematic analysis is carried out to understand the potential of coastal natural resources and the problems that threaten the ecosystem. An integrated and sustainable approach is needed, involving collaboration between government, society, and related parties. The integration of new technologies, including renewable energy technologies, was identified as a potential solution to several specific problems, such as waste management and clean water supply. An integrated and sustainable approach is analyzed by involving collaboration between government, society, and related parties. With collaboration and a deep understanding of the challenges and potential of Bawean Island, it is hoped that a sustainable coastal ecological balance can be achieved for the welfare of the environment and local communities.
Fuel efficiency and investment feasibility of marine shaft generator installation: A Case study on a very large gas carrier Achmad Riadi; Zoe Gladstone Tarigan; Dimas Angga Fakhri Muzhoffar; Haryanti Rivai
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/yt7std05

Abstract

Penelitian ini mengkaji pengaruh instalasi dan penggunaan marine shaft generator (shaft generator) khususnya pada mode Power Take-Off (PTO) terhadap konsumsi bahan bakar kapal tipe Very Large Gas Carrier (VLGC). Analisis kelayakan investasi juga dilakukan untuk menilai potensi investasi sistem shaft generator pada kapal yang sudah beroperasi tetapi belum memiliki sistem tersebut. Studi ini menggunakan pendekatan kuantitatif berdasarkan data operasional kapal selama satu tahun, dengan mempertimbangkan beberapa skenario penggunaan main engine, auxiliary engine, dan shaft generator pada kondisi PTO aktif (on) maupun nonaktif (off). Hasil analisis menunjukkan bahwa pengoperasian shaft generator dengan mode PTO on secara signifikan menurunkan konsumsi bahan bakar auxiliary engine, meskipun memberikan dampak penuruan kecepatan yang mempengaruhi sailing days. Secara keseluruhan, efisiensi energi kapal meningkat saat PTO on. Selain itu, analisis kelayakan investasi membuktikan bahwa investasi pada shaft generator layak untuk diterapkan, terutama pada kapal dengan rute pelayaran jarak jauh dan jam operasional tahunan yang tinggi.
Analisis pengaruh penggunaan genset tambahan terhadap konsumsi bahan bakar pada kapal Ro-Ro 3500 DWT Dimas Angga Fakhri Muzhoffar; Muhammad Agung Santoso; Achmad Riadi; Raffa Bainan Nunni; Arindra Nur Rakhman Wiambodo
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.
Co-Authors Adi Surjosatyo Arindra Nur Rakhman Wiambodo Ghulam Tulus Pambudi Gunawan Gunawan Budiyanto Haryanti Rivai Muhammad Agung Santoso Raffa Bainan Nunni Riadi, Achmad Wanda Rulita Sari Zoe Gladstone Tarigan