Article Per Year (5 Year)
p-Index From 2021 - 2026
2.127
P-Index
This Author published in this journals
All Journal Jurnal Teknologi SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin JMPM (Jurnal Material dan Proses Manufaktur) Authentic Research of Global Fisheries Application Journal (Aurelia Journal) International Journal of Engineering, Technology and Natural Sciences (IJETS) Jurnal Bluefin Fisheries Journal of Innovation Research and Knowledge Innovative: Journal Of Social Science Research
Mustopa Kamal
Politeknik Ahli Usaha Perikanan
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
ANALISIS RISIKO KESELAMATAN PEMBUATAN POROS PROPELLER DENGAN METODE HIRADC DI PT ASIA MAKMUR REJEKI Marsono Marsono; Ade Hermawan; Samsi Samsi; Mustopa Kamal; Sobri Sobri; M. Alfan Anshori; Syafiul umam
Journal of Innovation Research and Knowledge Vol. 5 No. 11 (2026): April 2026
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kinerja karyawan harus optimal untuk mencapai tujuan perusahaan, sehingga penting untuk menciptakan lingkungan kerja yang nyaman dan tenang. Perusahaan juga harus memperhatikan keselamatan dan kesehatan kerja untuk mencegah kecelakaan. Pekerjaan dapat dianggap aman jika dapat menghindari risiko. Proses pembuatan shaft propeller dari stainless steel dengan mesin bubut adalah penting dalam industri kapal. Pontensi bahaya pada proses pembuatan poros propeller muncul pada semua tahapan proses meliputi, Pemindahan material poros propeller, pembubutan, pengeboran, dan penghalusan material poros propeller. Bentuk risiko tersebut diantaranya, cedera fisik karena kontak dengan mesin, cedera otot dan tulang saat mengangkat material, serta paparan debu logam dan kebisingan yang dapat membahayakan kesehatan. Analisis yang dihasilkan dari identifikasi variasi risiko yang memiliki nilai tertinggi dengan menggunakan metode Hazard Identification, Risk Assessment and Determining Control (HIRADC) ada beberapa bahaya yang teridentifikasi meliputi risiko tertimpa benda berat, paparan benda tajam, cedera pada mata, iritasi, kontak dengan mesin bergerak, gangguan pendengaran, serta luka dan memar. Dalam pengukuran risiko, ditemukan bahwa nilai tertinggi mencapai 6, sementara nilai terendah adalah 1. Hasil dari studi ini memberikan pemahaman yang penting mengenai keselamatan dan kesehatan kerja di workshop dalam proses pembuatan poros propeller.
Analysis of Metal Contaminants and Wear in Lubricating Oil of Two-Stroke Diesel Engines Based on ASTM Testing Standards Mustopa Kamal; Ade Hermawan; Achmad Syarifudin; I Ketut Daging; M Yusuf Yusuf Syam; Raedy Anwar S; Angga Putra Jaya
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 19 No. 1 (2025): SINTEK JURNAL
Publisher : Faculty of Engineering, Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.19.1.72-81

Abstract

Common issues in diesel engines include lubricating oil contamination and metal wear, which significantly degrade oil quality. This study analyzes contamination and metal wear in the lubricating oil of a two-stroke diesel engine using American Standard Testing and Material (ASTM) methods. Data were obtained from 130 mL lubricating oil samples taken from a main engine and tested according to ASTM standards. The observed variables included independent factors (contamination and metal wear levels) and the dependent variable (lubricating oil quality), all analyzed in a laboratory. Testing methods comprised ASTM D445-21e2/ASTM D2896-21 (Cannon CT-500 Series II viscometer), ASTM D5185-18 (ICP-OES 5100 VDC spectrometer), and ASTM E2412-18 (Thermo Scientific Nicolet FTIR spectrometer), conducted at PT Petrolab Services Laboratory. Results from oil samples used for 7,744.5 and 10,576.5 operational hours indicated the presence of sodium (Na) and silicon (Si), suggesting a coolant leak containing salt. Furthermore, component friction generated significant wear metal particles—iron (Fe), copper (Cu), aluminum (Al), lead (Pb), and chromium (Cr)—which were trapped in the oil filter. This accumulation decreased lubricant quality by forming wear debris and sludge, potentially clogging lubrication channels. It was concluded that the lubricating oil quality degraded over four months of use. This issue can be mitigated by inspecting and repairing or replacing contaminated or worn parts, partially draining the oil via the underdrain tap during circulation, and topping up with the same oil grade.
Rebuilding Mobile Cold Storage System to Maintain Fishery Product Quality Mustopa Kamal; Berbudi Wibowo; Faizal Fachruddin; M. Alpandi Rizki
Jurnal Internasional Teknik, Teknologi dan Ilmu Pengetahuan Alam Vol 8 No 1 (2026): International Journal of Engineering, Technology and Natural Sciences
Publisher : Universitas Teknologi Yogyakarta, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46923/ijets.v8i1.583

Abstract

The inadequate performance of the refrigeration compressor can limit the ability of a mobile cold storage system to maintain stable low temperatures during continuous operation, potentially affecting its application for fishery-product storage and distribution. This study aims at evaluating the technical performance of a rebuilt mobile cold storage system following the replacement of its original automotive air-conditioning compressor with a 1 HP air-conditioning compressor. An experimental case-study method was conducted using a 1,560-L mobile cold storage unit located at the Center for Testing the Application of Marine and Fisheries Products in East Jakarta. The rebuilding procedure comprised initial system inspection, removal of the existing compressor, modification of the compressor mounting, installation of the 1 HP compressor, reconnection of the suction and discharge refrigerant lines, electrical-system adjustment, system evacuation, refrigerant charging, leak inspection, and operational testing. Cooling performance was evaluated from the temperature reduction during an 8-h experimental test using 10 L of water as the test medium, with an initial temperature of approximately 30°C. The rebuilt system reduced the test-medium temperature from approximately 30°C to -4°C within 8 h and maintained stable cooling operation throughout the test period. These results demonstrate that replacement of the automotive air-conditioning compressor with a 1 HP air-conditioning compressor restored the cooling capability of the 1,560-L mobile cold storage system. The findings indicate that targeted compressor replacement, supported by appropriate mechanical, refrigerant-piping, and electrical modifications, provides a practical component-level rebuilding approach for restoring existing mobile cold storage systems used in fishery-product applications.
Co-Authors Abbas, Aries Achmad Syarifudin Achmad Syarifudin Ade Hermawan Ade Hermawan Ade Hermawan Agus Heri Kuswoyo Angga Putra Jaya Aprizha Muhammad Fadhil Basino, Basino Berbudi Wibowo Binardi, Teguh Daging, I Ketut Doly Andrian Harahap Eddy Mustono Fachruddin, Faizal Faizal Fachruddin Faizal Fachruddin I Ketut Daging Karepesina, Musa M Yusuf Yusuf Syam M. Alfan Anshori M. Alfan Anshori M. Alpandi Rizki Made Ariana Marsono Marsono Marsono Marsono Muditha, Dewa Made Pahruzi, Rahmat Priyantini Dewi Raedy Anwar S Raedy Anwar Subiantoro Riyadhi, Alwan Sabiqunassabiqun, Sabiqunassabiqun Sakti P. Nababan Samsi Samsi Saputra, Alfian Ady Sobri Sobri Syafiul umam Syam, M Yusuf Teguh Binardi Yusep Sugianto