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All Journal Devotion: Journal of Research and Community Service Mechanical Engineering for Society and Industry Jurnal Informasi Sains dan Teknologi (ISAINTEK) International Journal of Science and Environment Jurnal Sosial dan Sains Journal of Artificial Intelligence and Digital Business Innovative: Journal Of Social Science Research Indonesian Journal of Innovation Multidisipliner Research Impression : Jurnal Teknologi dan Informasi Indonesian Journal of Innovation Multidisipliner Research J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
Prawoto, Agus
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Underwater Remotely Operated Vehicle Control System Ar-chitecture Sutrisno, Imam; Widiarti, Yuning; Priyonggo, Projek; Hartanto, Tri Mulyatno Budhi; Santosa, Ari Wibawa Budi; Nofandi, Faris; Gunarti, Monika Retno; Prawoto, Agus; Wahyuni, Anak Agung Istri Sri
Indonesian Journal of Innovation Multidisipliner Research Vol. 2 No. 2 (2024): June
Publisher : Institute of Advanced Knowledge and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69693/ijim.v2i2.132

Abstract

Underwater Remotely Operated Vehicle (ROV) control system architecture, work Class II - underwater inspection is demonstrated. The object is programmed on MATLAB simulink. The nonlinear modeled plants were processed by approximation way. Author planned a controller of an underwater ROV object. PID controller is used modeled plant. Tuning PID tool is used MATLAB for choose underwater ROV controller. Researchers tested an underwater ROV for system and solving problems an underwater ROV architecture.
Analisis Komprehensif Faktor-Faktor yang Mempengaruhi Produksi Air Tawar FWG di Kapal MT. Pangkalan Brandan Prawoto, Agus; Fauzi Muryadih, Izzul Luthfie; Sutrisno, Imam
Innovative: Journal Of Social Science Research Vol. 4 No. 2 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i2.9907

Abstract

Fresh Water Generator (FWG) merupakan alat penting di kapal untuk menghasilkan air tawar dari air laut. Ketersediaan air tawar sangat krusial untuk berbagai keperluan, baik di akomodasi maupun ruang mesin. Gangguan pada FWG dapat menyebabkan kekurangan air tawar dan berakibat fatal pada operasional kapal. Penelitian ini bertujuan untuk: Mengidentifikasi faktor-faktor yang menyebabkan penurunan produksi air tawar pada FWG. Menganalisis upaya-upaya yang dilakukan untuk mencegah penurunan produksi air tawar. Mengevaluasi keefektifan upaya pencegahan tersebut. Penelitian ini dilakukan dengan: Mengkaji literatur terkait FWG dan faktor-faktor yang mempengaruhi produksinya. Melakukan observasi dan pengukuran pada FWG di kapal. Menganalisis data yang diperoleh untuk mengidentifikasi faktor penyebab dan upaya pencegahan. Hasil penelitian menunjukkan bahwa faktor-faktor yang menyebabkan penurunan produksi air tawar pada FWG antara lain: Proses evaporasi pada evaporator yang rendah. Rendahnya hasil kondensasi pada condenser. Rendahnya tekanan pada pompa ejector. Upaya pencegahan yang dilakukan untuk meningkatkan produksi air tawar antara lain: Pembersihan kerak dan endapan garam pada evaporator dan condenser. Pemantauan dan pengaturan suhu evaporator, condenser, dan air pendingin. Perawatan dan pemeriksaan pompa ejector secara berkala. Upaya pencegahan tersebut terbukti efektif dalam meningkatkan produksi air tawar. Hasil penelitian menunjukkan adanya peningkatan produksi air tawar dari X m3/hari menjadi Y m3/hari setelah upaya pencegahan dilakukan. Faktor-faktor utama yang menyebabkan penurunan produksi air tawar pada FWG adalah proses evaporasi yang rendah, kondensasi yang rendah, dan tekanan pompa ejector yang rendah. Upaya pencegahan yang dilakukan, seperti pembersihan kerak dan endapan garam, pemantauan suhu, dan perawatan pompa ejector, terbukti efektif dalam meningkatkan produksi air tawar.
Analisis Fishbone Diagram Pada Kerusakan Turbin Blade dan Dampaknya Pada Kinerja Turbocharger Main Engine di Kapal Km Sirimau Abhyasa, Ardian; Robbi, Shofa Dai; Gupron, Akhmad Kasan; Prawoto, Agus; Syahputra, Rama
Innovative: Journal Of Social Science Research Vol. 5 No. 2 (2025): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i2.18644

Abstract

The turbocharger is a critical component in a ship's main engine system, enhancing combustion efficiency and engine performance by accelerating airflow into the cylinder combustion chamber. One of its key components is the turbine blade, which converts exhaust gas energy into mechanical energy to drive the compressor.This study aims to analyze damage to the turbine blade caused by exhaust valve rupture, where broken valve fragments enter the turbine side, negatively affecting turbocharger performance. The research employs a descriptive analysis method using fishbone analysis, with data collected from observations, logbooks, journals, manuals, documentation, and interviews.The findings indicate that the primary cause of turbine blade damage is foreign object ingestion (FOI), specifically fragments from a fractured exhaust valve in the main engine’s cylinder head. This fracture led to blade failure, significantly reducing the turbocharger’s efficiency. To maintain optimal main engine performance, strict adherence to the onboard manual book is strongly recommended.
Analisis Menurunnya Kinerja Main Air Compressor Tipe J.P Sauer & Sohn WP 81l-100 Dikapal MV. Tangguh Sago Adiwidya Rosyidah, Anata; Retno Gunarti, Monika; Prawoto, Agus; Edy Kristiyono, Antonius
Jurnal sosial dan sains Vol. 4 No. 12 (2024): Jurnal Sosial dan Sains
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jurnalsosains.v4i12.31870

Abstract

Latar Belakang: Penurunan kinerja main air compressor tipe J.P Sauer & SOHN WP 81L-100 di kapal MV. Tangguh Sago menjadi masalah serius yang dapat menghambat operasional kapal secara keseluruhan. Compressor ini memiliki peran penting sebagai sumber utama udara bertekanan yang digunakan untuk berbagai kebutuhan vital, termasuk sistem pneumatik kapal dan pengoperasian mesin utama. Tujuan: Penelitian ini bertujuan untuk menganalisis penyebab penurunan kinerja compressor dan merumuskan solusi perawatan yang efektif. Metode: Metode yang digunakan dalam penelitian ini adalah metode kualitatif dengan pendekatan fishbone (diagram tulang ikan) untuk mengidentifikasi akar masalah. Pengumpulan data dilakukan melalui observasi langsung, wawancara dengan awak kapal, serta dokumentasi terkait perawatan dan performa compressor Hasil: Hasil analisis fishbone menunjukkan bahwa penurunan kinerja compressor disebabkan oleh beberapa faktor utama, yaitu keausan komponen, kurangnya perawatan preventif, penumpukan kotoran pada bagian internal, dan rendahnya pemahaman awak kapal mengenai prosedur perawatan yang benar. Kesimpulan: Kesimpulan dari penelitian ini menekankan pentingnya perawatan yang lebih terstruktur serta peningkatan pemahaman teknis bagi awak kapal guna memulihkan kinerja optimal kompresor. Penelitian ini merekomendasikan peningkatan kesadaran awak kapal tentang pentingnya menjaga kinerja kompresor udara, disertai dengan penambahan frekuensi pengecekan rutin untuk mencegah terjadinya penurunan kinerja di masa mendatang
Analisa Menurunnya Tekanan Minyak Lumas pada Diesel Generator Hyundai H32/40 di Kapal MV.CMA CGM Verdi dengan Metode Fishbone Aryanti, Deniar Esa; Prawoto, Agus; Pribadi, Teguh; Robbi, Shofa Dai
Jurnal sosial dan sains Vol. 5 No. 1 (2025): Jurnal Sosial dan Sains
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jurnalsosains.v5i1.31967

Abstract

Sistem pelumasan memiliki peran vital dalam mendukung kinerja permesinan di kapal, termasuk diesel generator yang berfungsi sebagai pembangkit listrik utama. Penelitian ini bertujuan untuk menganalisis penyebab menurunnya tekanan minyak lumas pada diesel generator Hyundai H32/40 di kapal MV.CMA CGM VERDI. Metode penelitian yang digunakan adalah kualitatif dengan pendekatan diagram fishbone. Data dikumpulkan melalui observasi, wawancara, dan dokumentasi selama pelaksanaan praktek laut.. Hasil penelitian menunjukkan bahwa penyebab utama penurunan tekanan minyak lumas adalah kelalaian operator dalam perawatan mesin, kerusakan komponen pompa dan filter LO yang kotor, tidak optimalnya pelaksanaan sistem perawatan terjadwal (PMS), serta kualitas minyak lumas yang buruk. Akibatnya, sistem pelumasan tidak berfungsi secara optimal, mengakibatkan gesekan antar komponen mesin meningkat, keausan prematur, dan overheating yang dapat berujung pada kerusakan mesin secara menyeluruh. Untuk mengatasi masalah ini, diperlukan penerapan PMS yang ketat, termasuk pemeriksaan rutin filter dan pompa minyak lumas, analisis berkala terhadap kualitas minyak lumas, serta pemantauan visual kondisi mesin untuk deteksi dini tanda-tanda masalah. Penelitian ini memberikan kontribusi signifikan dalam meningkatkan pemahaman dan pengelolaan sistem pelumasan diesel generator di kapal, yang pada akhirnya dapat meningkatkan efisiensi operasional dan mengurangi risiko kerusakan mesin.
Analisis Retaknya Crankshaft pada Auxiliary Engine Mv. Manalagi Tisya Menggunakan Fault Tree Analysis Robbi, Shofa Dai; Danuaga, Anak Agung Gede Agung; Seno, Abdi; Kristiyono , Antonius Edy; Prawoto, Agus; Fitriani, Rika
Jurnal Informasi, Sains dan Teknologi Vol. 8 No. 2 (2025): Desember: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v8i2.364

Abstract

The crankshaft is a vital component of an engine that converts the linear motion of the piston into rotational motion to produce mechanical power for electricity generation. This study employs a descriptive qualitative method, utilizing data collection techniques such as observation, interviews, and literature review. The objective of this research is to analyze the factors contributing to the occurrence of cracks in the crankshaft of a diesel engine used as a generator prime mover. The findings indicate that the cracks are primarily caused by contamination of the lubricating oil with water, resulting from leakage in the lubricating oil cooler or tube oil cooler. Another contributing factor is the loosening of the connecting rod bolts, which may occur if they are not tightened to the specified torque or if a torque wrench is not used during installation. Corrective measures undertaken include replacing the gasket, repairing or replacing the leaking tube oil cooler, and retightening the connecting rod bolts using a torque wrench in accordance with the manufacturer’s specifications.
The Influence of Puncture Valve Wear on Bosch Pump Pressure and Main Engine Performance: A Quantitative Analysis of KM. Tanto Bersinar Setiawan, Langgeng; Prawoto, Agus; Ratnaningsih, Dyah; Robbi, Shofa Dai; Kristiyono, Antonius Edy
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 5 No. 1 (2026): Februari - April
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v5i1.6544

Abstract

The Main Mover Diesel Engine or Main Engine on a ship is the main device responsible for moving the ship forward and backward. The diesel engine fuel system, which includes the Bosch Pump, is a critical component in maintaining the engine's performance by providing the fuel necessary for combustion and propulsion of the vessel. The injector, which is used to spray fuel into the engine cylinder, is an important part of the system that supports the efficient combustion process in the main engine. The method used is a quantitative method which includes the collection and analysis of numerical data. By conducting surveys, experiments, or secondary data analysis, researchers can find patterns or generalizations in a larger population. By using quantitative methods, it will be possible to determine the cause of the decrease in Bosch pump pressure on the ship MV.Tanto Bersinar. The analysis of running hoaurs of puncture valve on the fuel injection pump for cylinder 1-8 demonstrates that the wear of puncture valve especially in cylinder 2 with 4.970 hours approaching the planned maintenance system (PMS )limit of 5.000 hours significantly affects injection pressure stability ,combustion,quality ,and main engine officiency ,which can be restored throngh critical component replacement,inspections close to PMS and injection pump recalibration.
The Influence of The Chief Engineer's Leadership Style on The Performance of Crew Members in The Engine Room Rafasya, Agraprana; Retno Gunarti, Monika; Kusumawati, Elly; Dai Robbi, Shofa; Prawoto, Agus
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 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.v6i1.439

Abstract

Human resource management in ship engine rooms faces challenges such as low productivity and high turnover due to the ineffective leadership style of the chief engineer. This study aims to analyze the influence of the chief engineer's leadership style on the performance of crew members (ABK) in the engine room. Using a quantitative explanatory approach with a descriptive survey design, the population includes all crew members in the engine room of the marine practice ship Polytechnic of Shipping Surabaya, with a sample of 35 respondents through purposive sampling. The Likert scale questionnaire instrument (1-5) was analyzed using SPSS for descriptive statistics, validity/reliability tests, simple linear regression, t-test, and R². The results showed a significant positive effect (t-count 5.370 > t-table 2.034; sig. 0.000), with R² 0.450 which means leadership explains 45% of the performance variation. The conclusion states that chief engineers need to implement proactive leadership to improve shipping efficiency and safety.
Air Compressor Design and Construction With Esp32 Based Microcontroller Monitoring System Surya Tutuko, Junaedy; Prawoto, Agus; Ratnaningsih, Dyah; Edy Kristiyono, Antonius; Dai Robbi, Shofa
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 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.v6i1.440

Abstract

: Air compressors serve as vital auxiliary engines on ships for starting main engines and operating valves, yet manual monitoring leads to inefficiencies and frequent failures, contributing to 20% of machinery downtimes globally. This study aims to design and build a prototype air compressor with ESP32-based microcontroller monitoring system for real-time electrical parameter tracking. Employing an experimental prototype development design, the research utilized laboratory-scale prototype as subject, with hardware including PZEM-004T sensor, LCD I2C, and Blynk app; data analyzed via comparative quantitative measurements against standard multimeter for accuracy assessment. Results demonstrate 100% consistency in voltage (230V), current (6.1A), power (1015W), and frequency (50Hz) readings across LCD and remote app during static/dynamic tests. In conclusion, the prototype enhances predictive maintenance and educational training for maritime students, although field testing in harsh conditions is recommended
The Relationship Between The Implementation of Occupational Safety and Health Management and Work Productivity in The Engine Room of Km. Dharma Kartika IX Brahmada, Iksan; Dirhamsyah; Purwitasari, Diyah; Prawoto, Agus; Sianturi, Intan
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 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.v6i1.445

Abstract

The maritime sector faces rising ship accidents, with 3,310 cases in 2024, highlighting risks in engine rooms. This study aims to analyze the relationship between occupational safety and health management (K3) implementation and work productivity in the engine room of KM. Dharma Kartika IX. Using a quantitative correlational cross-sectional design, data were collected via Likert-scale questionnaires from 30 purposive-sampled engine room workers during 12 months in 2026. Instruments were validated (Pearson, r_table=0.306) and reliable (Cronbach Alpha >0.60), analyzed with simple linear regression via SPSS 26, including prerequisite tests (normality, linearity). Results show a significant positive influence (t=4.305 >1.701, sig=0.001, R=0.780, R²=0.608; Y=22.892+0.253X), with high variable descriptions. In conclusion, enhanced K3 boosts productivity by 60.8%, recommending training and SOP enforcement
Co-Authors Abhyasa, Ardian Adiwidya Rosyidah, Anata Ajie, Kuntoro Bayu Akhmad Kasan Gupron, Akhmad Kasan Alfayer, Marcelly Nur Anak Agung Istri Sri Wahyuni Ardiyan Wicaksono, Moh. Afif Ari Wibawa Budi Santosa Aryanti, Deniar Esa Ashari, Muhammad Sadeli Avchandra, Prassetya Wira Aziz Nugroho Brahmada, Iksan C. I. Sutrisno Choirul Anam AM Diponegoro Dai Robbi, Shofa Daniel Happy Putra Danuaga, Anak Agung Gede Agung Dari , Riris Anandita Wulan Dirhamsyah Dirhamsyah, Dirhamsyah Edy Kristiyono, Antonius Effendi, Muhammad Ilham Eko Prayitno Fahdihilah, Talitha Tahara Zada Sani Faris Nofandi Fauzi Muryadih, Izzul Luthfie Fauzi, Wahyu Nur Fernanda, Muhammad Reza Gunarti, Monika Retno Hartanto, Tri Mulyatno Budhi Herlambang, Sri Mulyanto Imanto, Frenki Irfan, Saiful Kristiyono , Antonius Edy Kristiyono, Antonius Edy Kusumawati, Elly Lestari, Elise Dwi Maryandi, Dwi Cahyo Mohamad Faris Setiyawan Monika Retno Gunarti Mulyanto, Sri Nasri Nasri, Nasri Noviantara, I Ketut Pria Nugroho, Azis Nugroho, I Gede Widhyantara Erix Prayogi, Setiawan Bagus Pribadi , Teguh Projek Priyonggo Sumangun Lukitadi Purwitasari, Diyah Rafasya, Agraprana Ratnaningsih, Dyah Retno Gunarti, Monika Rika Fitriani Robbi , Shofa Dai Robbi, Shofa Dai Salsabila, Trya Samudra, Bagus Purwo Sandi, Wulan Marlia Seno, Abdi Setiawan, Langgeng Sianturi, Intan Surya Tutuko, Junaedy Syahputra, Rama Teguh Pribadi Trisnowati Rahayu Wardana, Ricco Kusuma Wirawan, Willy Artha Yudianto, Prima Yudha Yuning Widiarti Yusr, Daffa Izaz Rafi Afif Fauzi ZAINUDDIN, MOCHAMMAD