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All Journal Jurnal Teknologi dan Manajemen Industri Terapan Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Teknik Mesin, Industri, Elektro dan Informatika International Journal of Science and Environment
Wulan Marlia Sandi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mathematics Physics

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Prototype Pendeteksi Beban Berlebih Untuk Keamanan Operasi Hydraulic Crane Di Kapal Penumpang Ivana Wika Aprilia; Antonius Edy Kristiyono; Teguh Pribadi; Sonhaji Sonhaji; Wulan Marlia Sandi
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 3 No. 3 (2024): September : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v3i3.4082

Abstract

The safety and protection of the hydraulic crane is an important aspect that ensures the charging operation runs safely and efficiently, this study aims to provide protection against crane damage and minimize work accidents by providing overload detection sensors using loadcells and hx711 as the primary sensor in charging this device. This tool is a miniature crane that uses a servo motor and a DC motor as a replacement for the hydraulic on the crane. Where the same function, to move the arm of the crane and crane can rotate left, right, and up. The researchers used prototype methods to build and develop prototypes of cranes. To monitor this control system, use ESP32 as the transmitter and receiver of the joystick motion response. The received data will be processed and displayed on the LCD. Testing this device can detect how much load is lifted and detect if the load is over lifted, the device's operating system will lower the load again if overloaded.
Analisis Pengaruh Tingkat Kevakuman Terhadap Produksi Air Tawar Pada Fresh Water Generator Di Kapal MT. Savir Lion Laso Alfasa Yusuf; Agus Prawoto; Trisnowati Rahayu; Shofa Dai Robbi; Wulan Marlia Sandi
Jurnal Teknologi dan Manajemen Industri Terapan Vol. 5 No. 1 (2026): Jurnal Teknologi dan Manajemen Industri Terapan
Publisher : Yayasan Inovasi Kemajuan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55826/jtmit.v5i1.1630

Abstract

Penelitian ini bertujuan untuk memahami bagaimana tingkat kevakuman memengaruhi produksi air tawar pada Fresh Water Generator (FWG) tipe Sondex SFD23/35 di kapal MT. Savir Lion. FWG merupakan mesin penting di kapal karena menyediakan air tawar untuk kebutuhan sehari-hari, baik untuk akomodasi maupun untuk keperluan ruang mesin. Selama penulis melaksanakan praktek berlayar, produksi air tawar mengalami penurunan yang cukup besar—dari kapasitas normal 10–15 ton per hari menjadi sekitar 5 ton per hari. Kondisi ini menimbulkan kendala dalam pemenuhan kebutuhan air di kapal. Penelitian ini menggunakan metode deskriptif kualitatif melalui observasi langsung, wawancara dengan masinis yang bertanggung jawab, serta peninjauan dokumen operasional FWG. Hasil penelitian menunjukkan bahwa penurunan kevakuman terutama disebabkan oleh melemahnya tekanan pada ejector pump, kerusakan pada air ejector, penyumbatan pada jalur kondensor, serta penumpukan kerak pada plate evaporator. Setelah dilakukan perawatan seperti pembersihan plate, perbaikan sistem pemipaan, dan penggantian air ejector, tingkat kevakuman kembali meningkat dan produksi air tawar pulih ke kondisi normal. Secara keseluruhan, penelitian ini menegaskan bahwa tingkat kevakuman merupakan faktor utama yang menentukan efisiensi proses penguapan di dalam FWG. Semakin stabil dan kuat kevakumannya, semakin optimal produksi air tawar yang dihasilkan. Oleh karena itu, perawatan rutin, pemeriksaan berkala, dan pemantauan tekanan sistem sangat diperlukan untuk memastikan FWG dapat beroperasi dengan baik selama pelayaran.
Pengaruh Potensi Bahaya Overhaul Auxiliary Engine Terhadap Pencegahan Kecelakaan Kerja Awak Kapal Alfina Dwi Restyaningtyas; Monika Retno Gunarti; Elly Kusumawati; Shofa Dai Robbi; Wulan Marlia Sandi
Jurnal Teknologi dan Manajemen Industri Terapan Vol. 5 No. 1 (2026): Jurnal Teknologi dan Manajemen Industri Terapan
Publisher : Yayasan Inovasi Kemajuan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55826/jtmit.v5i1.1669

Abstract

Penelitian ini dilatar belakangi oleh tingginya risiko kecelakaan kerja pada pelaksanaan pekerjaan overhaul auxiliary engine di kapal. Pekerjaan tersebut melibatkan berbagai potensi bahaya yang dapat mengancam keselamatan awak kapal. Penelitian ini bertujuan untuk mengidentifikasi potensi bahaya pada pekerjaan overhaul auxiliary engine, mengkaji upaya pencegahan kecelakaan kerja yang dilakukan, serta menganalisis pengaruh potensi bahaya terhadap upaya pencegahan kecelakaan kerja awak kapal. Metode penelitian yang digunakan adalah metode kuantitatif dengan pendekatan deskriptif. Data dikumpulkan melalui penyebaran kuesioner kepada 29 responden yang merupakan awak kapal bagian mesin yang terlibat langsung dalam pekerjaan overhaul. Analisis data dilakukan menggunakan statistik deskriptif dan uji korelasi Pearson Product Moment dengan bantuan perangkat lunak SPSS untuk menguji hubungan antar variabel. Hasil penelitian menunjukkan bahwa pekerjaan overhaul auxiliary engine memiliki tingkat potensi bahaya yang tergolong tinggi, mencakup risiko mekanik (tangan terjepit, tertimpa komponen), risiko lingkungan (lantai licin, ventilasi kurang), serta faktor manusia. Di sisi lain, tingkat pencegahan kecelakaan kerja awak kapal ditemukan berada pada kategori sangat tinggi, yang ditandai dengan kepatuhan penggunaan Alat Pelindung Diri (APD), penerapan Standard Operational Procedure (SOP), dan pelaksanaan safety briefing. Hasil uji korelasi menunjukkan nilai koefisien korelasi (r) sebesar 0,216 dengan nilai signifikansi 0,261 (p > 0,05), yang berarti terdapat hubungan positif namun lemah dan tidak signifikan secara statistik antara potensi bahaya dengan upaya pencegahan. Hal ini menunjukkan bahwa meskipun potensi bahaya tinggi, awak kapal telah menerapkan sistem keselamatan kerja yang efektif sehingga risiko tersebut dapat dikendalikan dengan baik.
The Effect of Refrigerant Pressure on The Accommodation Cooling System on The MV. Meratus Medan 1 Ship Riko Dwi Cahyo; Azis Nugroho; Shofa Dai Robbi; Antonius Edy kristiyono; Wulan Marlia Sandi
International Journal of Science and Environment (IJSE) Vol. 6 No. 2 (2026): May 2026
Publisher : CV. Inara in Colaboration with www.stie-sampit.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i2.494

Abstract

The ship's accommodation cooling system is crucial for crew comfort, but often experiences decreased performance due to suboptimal refrigerant pressure. This study aims to analyze the effect of refrigerant pressure on the performance of the accommodation cooling system on the MV. Meratus Medan 1. Using a descriptive quantitative approach with primary data from observations and interviews with second engineers, as well as secondary data from log books. The population is operational data from one year of sea practice, purposive samples from daily measurements. Instruments include a manometer and SPSS for regression analysis (F, t, R² tests). The results show R² 0.960, F test sig. 0.000, and the equation Y = 122.644 – 1.435X1 – 4.712X2, confirming the significant effect of low (X1) and high (X2) pressure on room temperature (Y). The conclusion recommends routine PMS maintenance to prevent leaks and optimize COP, with limited generalization to normal sailing conditions.
Efforts to Prevent Oil Spills in Accordance with Annex I Implementation on the MT Capella Ship I Komang Gede Dimas Saputra; Sutoyo; Wulan Marlia Sandi; Upik Widyaningsih
International Journal of Science and Environment (IJSE) Vol. 6 No. 2 (2026): May 2026
Publisher : CV. Inara in Colaboration with www.stie-sampit.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i2.497

Abstract

Oil spills from tanker operations threaten marine ecosystems, especially in busy lanes such as the Malacca Strait, where operational failures in manifold connections during cargo handling are a major contributor to incidents. This study analyzes oil spill prevention efforts in accordance with MARPOL Annex I on the MT. Capella and identifies the causal factors through a descriptive qualitative case study. Data were collected from purposive sampling of key informants (Master, Chief Officer, Boatswain), semi-structured interviews, participant observation during 12 months of sailing practice, and analysis of ship documents, processed through thematic reduction, source triangulation, and interpretive verification. The findings indicate the systematic implementation of preventive measures including pre-operation toolbox meetings, visual inspections of reducers/gaskets/flange, installation of drip trays, and recording in the Oil Record Book, which successfully controlled a minor leak on February 17, 2025, without significant marine pollution. The main causes included technical factors (gasket wear, uneven bolt tightening, pressure surges) and human factors (lack of strict supervision, weak communication), confirmed through triangulation. The conclusions confirm that procedural compliance is effective but hampered by a lack of scheduled maintenance and scalable emergency response. Recommendations include standardizing torque wrenches, routine gasket stocking, intensive drilling, and regulatory audits to optimize Annex I compliance in Indonesian tanker operations.
Pengaruh Jam Kerja Pemakaian Minyak Lumas terhadap Suhu Mesin Diesel Generator di Kapal Muchammad Afilla Nurrahman; Nasri Nasri; Wulan Marlia Sandi; Shofa Dai Robbi; Intan Sianturi
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 2 (2026): : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i2.8673

Abstract

Generators are one of the important auxiliary aircraft needed on ships for power generation. During the operation of a diesel generator, continuous rotation occurs resulting in friction and erosion of the moving parts. The supporting factor for the smooth running of a diesel engine is a lubrication system that is supported by good lubricating oil quality, besides that it also needs to be supported by an adequate and good cooling system. The use of lubricants is one of the most important factors to ensure the performance of diesel engines. The lubricant is in charge of maintaining the condition of the engine so that it remains stable. This study aims to analyze the effect of using lubricating oil beyond the operating hours limit on engine heat. Furthermore, it also discusses steps to ensure diesel engine temperatures remain normal. This research was carried out during the practice of sailing on a ship for approximately one year. This study uses a descriptive quantitative research method. The primary data obtained directly utilizes observation methods, and documentation. Secondary data was obtained from existing articles and journals. The data analysis techniques used are descriptive analysis and inferential analysis. The results of this study show that the working hours of lubricating oil use have a significant influence on the increase in the temperature of diesel generator engines as evidenced by hypothesis tests on two engine units, namely AE1 and AE2. In the AE1 unit, a t-value of 18.467 with a significance of 0.000 was obtained, while in AE2 the t-value was 14.289 with a significance of 0.000. The significance value in both units is less than 0.05 so it can be concluded that the working hours of lubricated oil have a significant influence on the temperature of the genarato diesel engine on the ship.
Pengaruh Kerusakan Mechanical Seal terhadap Kinerja Hidraulik Steering Gear di Kapal AHTS Logindo Stamina Ibnu Septian, Wahyu; Antonius Edy Kristiyono; Prima Yudha Yudianto; Agus Prawoto; Wulan Marlia Sandi
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 2 (2026): : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i2.8767

Abstract

The steering gear is a vital component in ship operations, functioning to control the ship’s direction accurately. The reliability of this system highly depends on the performance of the hydraulic system, where the mechanical seal plays a key role in maintaining system pressure and preventing oil leakage. This study aims to identify the main factors causing mechanical seal damage and analyze its impact on the performance efficiency of the steering gear AHTS Logindo Stamina. Qualitative data were obtained through participatory observation and in-depth interviews with the second engineer. Meanwhile, quantitative data were gathered by measuring technical parameters such as oil pressure, operating temperature, and rudder movement time, which were then compared with SOLAS standards. This damage results in oil leakage through the mechanical seal gap, abnormal noise in the hydraulic system, and a significant decrease in working pressure of -25,86%. The operational impacts include the occurrence of steering gear failure alarms, decreased hydraulic efficiency of 25.87%, and the risk of system failure that could endanger ship maneuverability. This study recommends preventive maintenance through oil quality monitoring, environmental condition control in the steering gear room, and periodic mechanical seal replacement in accordance with operational standards to maintaining optimal steering system performance.
Co-Authors Agus Prawoto Alfina Dwi Restyaningtyas Antonius Edy Kristiyono Azis Nugroho Elly Kusumawati I Komang Gede Dimas Saputra Ibnu Septian, Wahyu Intan Sianturi Ivana Wika Aprilia Laso Alfasa Yusuf Monika Retno Gunarti Muchammad Afilla Nurrahman Nasri Nasri Prima Yudha Yudianto Riko Dwi Cahyo Shofa Dai Robbi Sonhaji *), Ferra Ika Wardani Solechan Sutoyo Teguh Pribadi Trisnowati Rahayu Upik Widyaningsih