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All Journal Wave: Jurnal Ilmiah Teknologi Maritim Jurnal Aplikasi Pelayaran dan Kepelabuhanan Maritime Park: Journal Of Maritime Technology and Socienty JPMP Amal Ilmiah: Jurnal Pengabdian Kepada Masyarakat Nusantara Journal of Multidisciplinary Science Jurnal Inovasi Global Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan International Journal of Marine Engineering and Applications WAVE: Jurnal Ilmiah Teknologi Maritim Jurnal Bahari dan Teknologi (BARTEK)
Awwalin, Rodlitul
Universitas Hang Tuah
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STUDI PENAMBAHAN FUNGSI KAPAL MELALUI PEMANFAATAN KAPAL TIPE LIGHTER ABOARD SHIP (LASH) UNTUK PULAU-PULAU KECIL: STUDI KASUS KEPULAUAN KANGEAN KABUPATEN SUMENEP Rodlitul Awwalin; Setyo Nugroho
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 12 No. 2 (2018)
Publisher : National Research and Innovation Agency (BRIN Publishing)

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Abstract

Produksi, ketersediaan dan harga kebutuhan pangan telah menjadi perhatian utama dan masalah rumit saat ini khususnya di daerah pulau-pulau kecil. Hal ini menjadikan pentingnya perubahan sistem logistik yang dapat memecahkan masalah sistem logistik di daerah pulau-pulau kecil. Salah satu fokus utama untuk menangani situasi ini adalah untuk menciptakan koneksi yang baik melalui pulau-pulau kecil yang ada di wilayah pulau-pulau di Indonesia, terutama di Kepulauan Kangean. Untuk menghubungkan pulau-pulau di Kepulauan Kangean, dengan gagasan pemanfaatan kapal tipe Lighter Abroad Ship (LASH) yang dioperasikan untuk menopang sistem logistik yang baik dalam aspek waktu, dan efisiensi penanganan muatan di pelabuhan kecil. Kapal ini adalah kapal kargo yang memuat tongkang-tongkang kecil sebagai kemasan, sehingga cocok untuk area operasional di negara-negara berkembang dan kepulauan, konsepnya adalah penanganan tongkang-tongkang yang efektif terhadap waktu, tongkang sebagai gudang apung ditinggalkan dan kapal langsung berlayar kembali, sehingga tidak membutuhkan antrian yang lama di pelabuhan serta menambah kinerja kapal dalam beroperasi. Tantangan memperbaiki logistik nasional memiliki banyak kendala seperti bentuk kondisi geografis yang berupa pulau-pulau kecil serta berjumlah banyak, dan kurangnya alat akses untuk menjangkau pulau-pulau terkecil tersebut menjadi kendala yang perlu diatasi. Untuk itu tujuan dari penelitian untuk mempelajari bagaimana pemanfaatan kapal tipe LASH, dengan menggunakan pendekatan berupa jumlah pertumbuhan penduduk serta Asal Tujuan Transportasi Nasional (ATTN) barang ke Kepulauan Kangean, untuk menentukan kapasitas muatan kapal, serta metode perhitungan optimasi biaya per-unit ton muatan paling rendah untuk memilih model kapal dan rute terpendek, kemudian penentuan konfigurasi gudang terapung yang berupa tongkang apung. Sehingga didapatkan model kapal dengan biaya perunit ton muatan paling rendah adalah kapal tipe LASH Gantry Crane rute R-2 (Situbondo-Sumenep-Sapudi-Arjasa-Kangayan-Sapeken-Situbondo) dengan biaya sebesar Rp. 625.912,-.
Analisis Kerusakan Pompa Pendingin Air Laut pada Mesin Induk di Mv. Manalagi Wanda Fikri Aldiyansyah; Sugeng Marsudi; Rodlitul Awwalin
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 4 No. 2 (2026): Mei: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v4i2.1449

Abstract

This study aims to identify the causes of sea water cooling pump failure, analyze its impact on the main engine cooling system, and explain the corrective actions taken to restore pump performance on board MV. Manalagi Wanda. The sea water cooling pump is one of the essential auxiliary machines responsible for circulating seawater as a cooling medium to maintain the main engine operating temperature within a safe range during ship operations. This research employed a descriptive qualitative method with data collected through direct observation, interviews with the Chief Engineer, Fourth Engineer, and Foreman, as well as documentation during the sea practice period. The collected data were analyzed to determine the relationship between pump component failures and the decline in the performance of the main engine cooling system. The findings revealed that the pump pressure decreased from 2.4 bar to 1.4 bar, causing the main engine High Temperature (HT) to rise from 80.5°C to 82.5°C. Inspection and dismantling of the pump identified damage to the mechanical seal, bearing, and shaft. These damaged components resulted in leakage, excessive vibration, unstable pump rotation, and reduced seawater flow rate. Corrective maintenance was carried out by replacing the damaged components with new parts according to the manufacturer's specifications. After reassembly and a successful test run, the pump pressure returned to 2.4 bar, while the HT temperature decreased to approximately 80.0°C, allowing the cooling system to operate normally and efficiently once again.
Analisis Kegagalan Sistem Pelumasan Piston pada Diesel Generator Nomor 1 di Kapal MV. Hanglima Moh. Rifqi Bagus Wahyudi; Sugeng Marsudi; Rodlitul Awwalin
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 4 No. 2 (2026): Mei: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v4i2.1460

Abstract

This study analyzes the causes of piston lubrication system failure and its impact on the performance of Diesel Generator No. 1 aboard MV. Hanglima. The lubrication system is essential for reducing friction, cooling engine components, and preventing wear to ensure reliable diesel engine operation. This research employed a qualitative descriptive approach using direct observation in the engine room, interviews with engine crew members, and documentation from engine logbooks and engine disassembly results. The findings show that the engine initially operated normally, but a significant increase in fresh water and lubricating oil temperatures, followed by a drop in lubricating oil pressure below the minimum operating limit of 2.5 bar, activated the Low Lubricating Oil Pressure alarm. This condition caused the engine speed to decrease from 1200 RPM to approximately 700 RPM, reducing both frequency and electrical power output. Engine disassembly revealed that the failure was primarily caused by a blocked piston cooling jet in Cylinder No. 3, contaminated oil filters, sludge accumulation in the oil sump, and wear on the piston and cylinder liner. Regular preventive maintenance is therefore essential to ensure stable and reliable diesel generator performance.
Analysis of Fuel Efficiency and Speed Increase on Ferry MV BATAM FAST 20 (High Speed Craft) through the Installation of a Hull Vane Ardiansyah, Angga Andi; Suwasono, Bagiyo; Awwalin, Rodlitul
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 2 (2026): bulan Maret
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i2.189

Abstract

This study investigates the impact of Hull Vane System installation on fuel efficiency and speed enhancement for High Speed Craft (HSC) ferries, focusing on MV. Batam Fast 20 operating on the Batam–Singapore route. The Hull Vane, a fixed hydrofoil mounted at the stern below the waterline, is designed to reduce hydrodynamic resistance and improve vessel performance. Numerical simulations using Computational Fluid Dynamics (CFD) with RANSE-based solvers were conducted across various speeds (10–25 knots) and foil attack angles (0°, 2°, 4°,6°). Results indicate that Hull Vane offers significant drag reduction only at low speeds (10 knots), achieving up to 26.99% resistance reduction. However, at operational speeds (20–25 knots), the system increases resistance due to excessive lift, causing bow trim and higher wetted surface area. Validation was performed through grid independence studies and comparison with experimental data and Maxsurf Resistance software. The findings conclude that Hull Vane System is unsuitable for MV. Batam Fast 20 due to its hull geometry and waterjet configuration. The study recommends exploring alternative technologies such as bow foils or automated trim control systems for high-speed vessels, emphasizing the need for adaptive hydrodynamic solutions in modern ferry operations.
Analysis of Gearbox Ratio Mismatchwith Main Engine RPM, Resulting in High Temperature Lubricating Oil Lubrication in the Gearbox of MV. Prakarsa Mas Riswanto, Adi; Saktiono, Maxima Ari; Awwalin, Rodlitul
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 2 (2026): bulan Maret
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i2.191

Abstract

Gearbox is a vital component in the ship propulsion system that functions to transmit power from the main engine to the propeller. On the MV. Mas Initiative, found a discrepancy between the gearbox rotation ratio with the RPM of the main engine, which has an impact on increasing the lubrication temperature of the gearbox lubricating oil to exceed the optimal limit. This condition can reduce lubrication efficiency, accelerate component wear, andreduce overall ship performance. This study aims to analyze the factors that cause gearbox ratio mismatch, evaluate its impact on lubricant temperature, and develop technical recommendations to overcome these problems. The method used is descriptive qualitative approach through direct observation, interviews with the crew, and literature studies. The results showed that the main causes of this discrepancy include damage to gearbox components, a non-optimal lubrication system, as well as a lack of regular maintenance. The high temperature of the lubricant has an impact on decreasing the viscosity of the oil and decreasing the efficiency of power transmission. Recommended solutions include regular cleaning of the oil cooler and filter, checking the pressure of the oil pump, as well as regular oil quality testing. It is expectedthat the results of this study canbe a referencein gearbox maintenance to improve the reliability and operational efficiency of the ship.
Comparative Analysis of Cost and Durability of Sch 40 Galvanized Pipe and Sch 80 Black Pipe for Seachest Sea Water Systems KM. Pratiwi Indah Mursidi, Mursidi; Awwalin, Rodlitul; Zunaeda, Wingky Okta
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 2 (2026): bulan Maret
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i2.208

Abstract

The seawater piping system on KM. Pratiwi Indah plays an important role in supporting ship operations; however, it is highly susceptible to damage due to the corrosive marine environment. This study aims to identify the causes of the seawater piping system replacement, compare the costs between galvanized pipe SCH 40 and black pipe SCH 80, and analyze the corrosion resistance of both pipe types. The research methods include the calculation of corrosion rate, remaining life, and Life Cycle Cost (LCC), supported by data presentation in tables and graphs. The analysis results indicate that the galvanized pipe has a corrosion rate of 0.35 mm/year with a remaining life of 15.14 years, while the black pipe has a corrosion rate of 0.53 mm/year with a remaining life of 16.41 years. Although the black pipe shows a slightly longer remaining life, the LCC calculation over a 30-year analysis period demonstrates that the galvanized pipe results in a lower total life cycle cost. Based on the technical and economic analysis, the galvanized SCH 40 pipe is recommended as the more optimal material for the seawater piping system on KM. Pratiwi Indah.
Desain Stasiun Pengisian Baterai Tenaga Surya untuk Efisiensi Operasional Penangkapan Benih Lobster Ali Munazid; Sutiyo Sutiyo; Bagiyo Suwasono; Rodlitul Awwalin
Amal Ilmiah: Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 3 (2026): Edisi November 2026
Publisher : FKIP Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36709/amalilmiah.v7i3.724

Abstract

Penangkapan benih lobster di Teluk Brumbun, Jawa Timur, selama ini bergantung pada generator berbahan bakar bensin untuk menyalakan lampu pada bagan apung. Penggunaan generator tidak hanya meningkatkan biaya operasional nelayan, tetapi juga menimbulkan dampak lingkungan berupa emisi gas buang, kebisingan, dan risiko pencemaran bahan bakar. Kegiatan ini merancang dan mengimplementasikan stasiun pengisian baterai berbasis sel surya berkapasitas 1 kW sebagai solusi penyedia energi bersih bagi nelayan yang bertujuan untuk mengefisiensi penggunaan energi pada operasional penangkapan benih lobster. Dengan tujuan tersebut metode yang dilakukan dalam beberapa tahap: survei kondisi dan kebutuhan, merancang teknologi, pembuatan dan implementasi serta evaluasi dan analisis dampak stasiun pengisian baterai bagi masyarakat. Hasil perancangan menunjukkan kapasitas produksi energi harian sebesar 2,86 kWh, cukup untuk menyuplai lima unit bagan apung setiap malam. Secara ekonomi, sistem ini mampu menghemat biaya operasional sebesar Rp 36–45 juta per tahun untuk lima Bagan, dibandingkan penggunaan bensin 4–5 liter per malam. Secara lingkungan, sistem ini mengurangi emisi sebesar 8–10,5 ton CO₂ per tahun serta menghilangkan potensi pencemaran perairan. Inovasi ini terbukti meningkatkan efisiensi, menurunkan biaya operasional, dan mendukung praktik perikanan tangkap yang lebih berkelanjutan dan rendah karbon.  Implementasi sistem ini memiliki potensi replikasi yang tinggi di wilayah pesisir lain dengan karakteristik radiasi surya dan pola operasi penangkapan malam hari yang serupa.
Analisis Tidak Sempurnanya Pengabutan Injektor pada Mesin Induk No 1 di TB Nisrina Riski Samudera Reda Pradana; Mursidi Mursidi; Rodlitul Awwalin
JURNAL BARTEK Vol 2 No 2 (2026): Jurnal Bahari dan Teknologi [BARTEK]
Publisher : Politeknik Bumi Akpelni Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.6425/4c6z6549

Abstract

Uncomplete fuel atomization in the No. 1 main engine injector of TB Nisrina Riski Samudera VII was associated with reduced engine performance, elevated exhaust gas temperature, black smoke, and abnormal engine vibration during operation. This study aimed to identify the causes of incomplete injector atomization, describe its effects on main-engine performance, and determine corrective actions. A descriptive qualitative approach was applied during the sea-practice period on board the vessel. Data were obtained through direct observation, interviews with engine-room crew, documentation, and review of ship and engine references. The findings showed three dominant technical conditions: carbon deposits partially blocked the nozzle holes, injector-spring elasticity decreased so that opening pressure fell below the specified value, and the injector needle became dirty and stuck. The injector test recorded about 28 MPa (290 kg/cm²), whereas the manual-book value used in the study was 34 MPa (350 kg/cm²). The incomplete spray pattern contributed to incomplete combustion, exhaust-gas temperature of 550–600 °C, black smoke, unstable combustion, and a reduction of engine speed to around 1200 rpm under high towing load. Cleaning the nozzle and needle, replacing the weakened spring, periodically replacing the fuel filter, cleaning the fuel tank, and retesting injector pressure restored the spray pattern to normal at 34 MPa.
Analisis Kerusakan Main Air Compressor Nomor 1 Di Kapal MT. Eleanor I Sifa’ulumuddin; Rodlitul Awwalin; Daryanto
Nusantara Journal of Multidisciplinary Science Vol. 4 No. 1 (2026): NJMS - Agustus 2026
Publisher : PT. Inovasi Teknologi Komputer

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Abstract

Main Air Compressor merupakan mesin bantu yang menyediakan udara bertekanan untuk starting mesin induk, mesin bantu, dan sistem pneumatik di kapal. Kerusakan kompresor dapat menurunkan tekanan udara dan mengganggu operasional kapal. Penelitian ini bertujuan menganalisis faktor penyebab kerusakan Main Air Compressor Nomor 1 di Kapal MT. Eleanor I, dampak yang ditimbulkan, serta upaya perbaikan dan perawatan untuk mencegah kerusakan serupa. Penelitian menggunakan metode deskriptif kualitatif dengan pengumpulan data melalui observasi langsung di kamar mesin, wawancara dengan awak kapal bagian mesin, dokumentasi, dan studi pustaka. Analisis dilakukan terhadap kondisi kompresor sebelum kerusakan, mendekati abnormal, saat abnormal, dan setelah overhaul. Hasil penelitian menunjukkan kerusakan terutama terjadi pada katup High Pressure dan Low Pressure berupa keausan dan penumpukan karbon yang menyebabkan kebocoran kompresi. Tekanan udara pada kondisi normal mencapai 29 bar dalam 15 menit, sedangkan saat kerusakan hanya 15 bar. Setelah overhaul melalui pembersihan, perbaikan atau penggantian komponen katup, kompresor mampu mencapai 30 bar dalam 15 menit. Preventive maintenance sesuai Planned Maintenance System, pemeriksaan katup secara berkala, pembersihan endapan karbon, dan penggantian komponen yang rusak diperlukan untuk menjaga keandalan kompresor
Analisis Kebocoran Sea Water Cooling Pump Pada Auxiliary Engine No. 1 Di Kapal KM Sabuk Nusantara 76 Enriko Fahmi Zulfikar; Rodlitul Awwalin; Daryanto
Nusantara Journal of Multidisciplinary Science Vol. 4 No. 1 (2026): NJMS - Agustus 2026
Publisher : PT. Inovasi Teknologi Komputer

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Abstract

Kebocoran Sea Water Cooling Pump pada Auxiliary Engine No. 1 di KM Sabuk Nusantara 76 menyebabkan penurunan tekanan aliran air laut dan kenaikan suhu mesin bantu. Penelitian ini bertujuan mengidentifikasi penyebab kebocoran, menganalisis dampaknya terhadap sistem pendinginan dan kinerja Auxiliary Engine No. 1, serta menentukan tindakan perbaikan dan preventive maintenance. Metode yang digunakan adalah studi kasus dengan dukungan data kualitatif dan kuantitatif sederhana yang diperoleh melalui observasi langsung, wawancara dengan Kepala Kamar Mesin dan masinis, dokumentasi, serta analisis engine logbook. Hasil penelitian menunjukkan keausan mechanical seal, kerusakan bearing, korosi dan endapan pada casing serta saluran pompa, potensi misalignment poros, dan preventive maintenance yang belum optimal sebagai faktor penyebab. Tekanan keluaran pompa turun dari 2,5 bar menjadi 1,5 bar dan suhu Auxiliary Engine No. 1 meningkat dari 74°C menjadi 88°C. Perbaikan dilakukan melalui pembongkaran, pembersihan, penggantian mechanical seal dan bearing, pemeriksaan poros dan alignment, perakitan, serta pengujian. Pencegahan memerlukan inspeksi rembesan, pemantauan tekanan, suhu dan getaran, pembersihan strainer, serta preventive maintenance yang terdokumentasi
Co-Authors Ali Munazid Ardiansyah, Angga Andi Atmojo, Gatot Priyo Tri Bagiyo Suwasono Bagiyo Suwasono Bagiyo Suwasono, Bagiyo Daryanto Daryanto Daryanto Enriko Fahmi Zulfikar FATHUL BARI Faulina Khusniawati Fikri Aldiyansyah Hidayatullah, Anton Marsudi, Sugeng Maxima Ari Saktiono Moh. Rifqi Bagus Wahyudi Mursidi Mursidi Mursidi MURSIDI MURSIDI, MURSIDI Nasihah, Ainun Reda Pradana Riswanto, Adi Setyo Nugroho Setyo Nugroho Setyo Nugroho Sifa’ulumuddin Sugeng Marsudi Sugeng Marsudi Supangat Sutiyo Sutiyo Zunaeda, Wingky Okta