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Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Published by Asosiasi Riset Ilmu Teknik Indonesia
ISSN : 30315018     EISSN : 30313503     DOI : 10.61132
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Industrial & Manufacturing Engineering Mechanical Engineering
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan. is a journal devoted to the publication of scientific articles published by the Indonesian Engineering Science Research Association. This journal is a peer-reviewed and open research journal of the Engineering Science Clump. The fields of study in this journal include the Civil Engineering, Earth and Shipbuilding Engineering sub-groups. The Research Journal of the Engineering Science Clump accepts articles in English and Indonesian. This journal is published 1 year 4 times (February, May, August and November)
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 174 Documents
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Manufaktur Cakram Motor 150cm³ dengan 3 Lubang, Diameter Luar 200mm, Tebal 4mm, Kapasitas 2 Biji/Jam Lailatul Hidayah; Syamsul Hadi; Oliver Mirza Safrilullah; Bima Gananta Ale Majid; Muchammad Tiffa Taufiqur Rachman
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.v4i2.1402

Abstract

The 4 stroke, 150 cm³, 2003 motorcycle brake disc product with 3 holes, 200 mm outer diameter, 4 mm thick is no longer produced by the factory due to the problems faced. The manufacturing goal is to obtain a 150 cm³ motorcycle disc with 3 holes, 200 mm outer diameter, 4 mm thick in order to meet the needs of brake disc products in the market. The brake disc manufacturing method includes: motorcycle brake disc design, selection of medium carbon steel raw materials, AISI 1045, cutting raw materials with a welding flame from 1.5 m x 2 m x 5 mm plate material to 205 x 205 x 5 mm, making center holes with a drilling machine in stages to 56 mm, turning two sides to a diameter of 201 mm x 4.1 mm, drilling 3 holes with a diameter of 8 mm with a radius of 110 mm at an angle of 120o, grinding two sides each 0.5 mm with a roughness of N7 or 1.6 m, and checking the quality and dimensions of the product. The manufacturing results are in the form of brake discs made of AISI 1045 material with an outer diameter of 201 mm, a thickness of 4 mm, a surface roughness of Ra 1.48 um, with 3 M8 bolt holes, a total production cost of IDR 125,000/unit, and a fabrication duration of 24 minutes/unit, which implies that a 4-stroke, 150 cm³, 2003 motorcycle can be re-used using brake discs that meet its specifications.
Fabrikasi Engsel Pintu Pagar Baja Panjang 250mm, Lebar 80mm, Tinggi 100mm, Kapasitas 0,7 Set/Jam Muhammad Afin Khairullah; Syamsul Hadi; Laldy Agum Sartyo; Dafa Ahmad Amrizal; Rizky Khairi Sakha
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.v4i2.1408

Abstract

Broken or deformed hinges due to the inability to withstand the load of the folding gate door are the problems faced. The purpose of fabrication is to obtain folding gate door hinges from AISI 1020 steel with dimensions of 250x80x3 mm, and a height of 100 mm. The fabrication method includes: design of folding gate door hinges with dimensions of 250x80x3 mm, and a height of 100 mm; cutting 2 sheets of AISI 1020 steel measuring 250x80x3 mm; forging to form a circle with a diameter of 11 mm on the 80 mm wide side; drilling 4 holes with a diameter of 9 mm at the position according to the design; making a hinge shaft from an M10 bolt whose head and thread are connected with a connecting rod to a length of 175 mm; assembling 2 pieces of hinges with a hinge shaft; and quality-dimension-packaging inspection. The fabrication results are a pair of folding gate door hinges made of AISI 1020 steel with dimensions of 250x80x3 mm, and a height of 100 mm with an M10 bolt shaft of 175 mm in length with a production cost of IDR 48,000/unit, and a process duration of 88 minutes/unit which implies that the hinges are ready to be welded to the gate with a maximum load of 50 kg and painted before use.
Analisis Perizinan Olah Gerak Kapal (Shifting Permit) menggunakan Sistem Operasi Layanan Kapal Digital guna mendukung Operasional Transhipment di Pt. Dian Ciptamas Agung Site Bunati Vickri Ananda Pringgondani; Sitti Syamsiah; Nurul Hatifah
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 4 No. 3 (2026): Agustus : 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.v4i3.1411

Abstract

This research is motivated by the existing obstacles in processing the shifting permit activities. This study aims to analyze the management of shifting permit activities using the digital ship service operations system at PT. Dian Ciptamas Agung, Bunati Site, as well as to identify and evaluate the obstacles and efforts that can be made to support transhipment operations. This research uses a descriptive qualitative approach with data collection methods including participatory observation, interviews, and document studies. The research is conducted at PT. Dian Ciptamas Agung, Bunati site, South Kalimantan Province. The implementation of this research will take place over approximately 12 months ( August 4, 2024 – July 15, 2025). The process of obtaining a shifting permit for transhipment operations at PT. Dian Ciptamas Agung, Bunati Site has referred to and complied with Law Number 66 of 2024 and Minister of Transportation Regulation Number PM 8 of 2022. This is supported by the existence of digital vessel service operating systems such as Inaportner and Phinnisi. Nonetheless, several obstacles are still encountered, such as the submission of the Letter of Application for Ship Movement (SPOG) being delayed due to the mooring PPK not appearing automatically on Inaportnet, and the submission for pilotage requests on the Phinnisi system being rejected due to the Pelindo operator entering the wrong time in the Vessel Berthing Plan (RPK).
Pembuatan Sabit Panjang 300 mm, Lebar 50 mm, Tebal 5 mm Kapasitas 0,5 Unit/Jam Ahmad Alvino Satria Gama Ramadhani; Syamsul Hadi; Muhammad Firman Agustianto; Kafii Widhyadhana; Nayyaka Kalingga Putra
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.v4i2.1416

Abstract

Broken, bent, and fast wear of farmer's sickle as a problem in its use. The purpose of making is to get a sickle that is not easily broken, not easily bent, and relatively wear resistant. The manufacturing method is through: sickle design measuring 300x250 mm with a sickle width of 50 mm, and a thickness of 5 mm thinning towards the sharp side of the sickle, turning the teak wood handle, trial cutting of medium carbon steel material, AISI 1045 size 20 x 25 x 6 mm or equivalent to 3000 mm3, forging at a temperature of 800-1000 ° C, hardening into a water cooling medium, making a locking ring with copper welding, turning the wooden handle, installing a steel locking ring between the sickle root and the wooden handle, finishing with painting the handle according to the order, and checking the quality and dimensions. The result of the production is a sickle with dimensions of 300x250 mm with a width of 50 mm, and a thickness of 5 mm with a wooden handle, the manufacturing cost is IDR 84,000/unit which requires a production time of 120 minutes/unit which has an impact on the use of the sickle for cutting grass and the like, it can be used for up to around 4 years.
Produksi Katup Bola Rumah SS304 Ukuran 0,5 Inci dengan Kapasitas 2 Biji per Jam Fanni Cicilia Krisani; Syamsul Hadi; Dhia Kemal Ramadhan Wiyono; Aulia Tri Saputra; Hilmi Andyan Rahmaputra
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.v4i2.1424

Abstract

Structural leakage of ball valves in piping systems in industrial areas and in household environments is a problem encountered in the field. The production objective is to obtain a ball valve with a valve housing made of stainless steel, SS304 with a valve ball diameter of 0.5”. The production method includes: design of a 0.5” ball valve; 3D geometric modeling and simulation using CAD/CAM software to extract numerical codes (G-code) and determine the cutting path strategy in machining; optimization of cutting parameters (cutting speed, feed rate, and depth of cut); CNC machining for ball valve components; design of a ball valve plastic lever; design of a ball valve plastic lever mold; and molding of a ball valve plastic lever; assembly of ball valve components; hydraulic testing at a pressure of 10 Bar; and quality-dimensional and packaging inspection. The production results are in the form of a ball valve with a valve housing made of stainless steel, SS304 with a valve ball diameter of 0.5” with a total production cost of IDR 75,000/unit, and a process duration of 30 minutes/unit which means that the ball valve can be used in various water installations in industrial areas and in household environments.
Fabrikasi Kawat Baja Pagar Berduri Galvanis Diameter 3 mm Kapasitas 100 m/Jam Muhammad Rizqi Distiawan; Syamsul Hadi; Satria Dwi Wijaya; Mohammad Arif Dzihni Salim; Immanuel Joseph Isgiarno; Rafi Chozy Asshofi
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

Abstract

The vulnerability of security in various industrial, agricultural, and infrastructure sectors as well as areas that are not always under supervision is a problem faced. The purpose of fabrication is to obtain galvanized barbed wire fences with a diameter of 3 mm that is rust-resistant. The fabrication method includes: wire drawing through a die (die) from a diameter of 4 mm to 3 mm, passing the wire into molten Zinc at 450oC (hot dip galvanization) for 1 minute, making pieces of wire with sharp barbed ends of 40 mm and 70 mm long, inserting 1 piece of wire barb with a length of 40, and winding 1 piece of wire barb with a length of 70 mm around 3 pieces of wire body at every 15 cm distance of 3.8 turns, passing the barbed wire twist in molten Zinc for 1 minute, rolling the barbed wire, quality and dimension inspection. The fabrication results are in the form of 3 mm diameter galvanized barbed wire fences that are rust-resistant, the total production cost is IDR 11,500/m, and the production process duration is 36 seconds/m which implies that galvanized barbed wire fences can be used for protective fences in various industrial, agricultural, and infrastructure sectors and unsupervised areas.
Analisis Pengaruh Perubahan Suhu Batubara terhadap Nilai Total Moisture, Ash content, dan Nilai Kalori Batubara pada Area ROM Coal Stockpile di PT Mahakam Sumber Jaya Indaswati Indaswati; Windhu Nugroho; Albertus Juvensius Pontus; Agus Winarno; Ardhan Ismail
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 4 No. 3 (2026): Agustus : 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.v4i3.1438

Abstract

Coal stacked in stockpiles is directly exposed to sunlight and rain, which can significantly affect coal quality. These enviromental conditions influence the temperature of coal piles, subsequently causing fluctuations in moisture content. This stucdy investigates the effect of coal temperature on coal quality parameters at the ROM Coal Stockpile area of PT. Mahakam Sumber Jaya. Using actual field sampling methods with 30 samples collected form the ROM C HTS (High Total Sulphur) area during November – Desember 2024, coal temperature was measured using a thermogun and quality parameters total moisture, ash content and calorific value were analyzed using ASTM standard. Simple linear regression and correlation analysis were applied for data processing. Result showed that coal temperature has very stong negative correlation with total moisture (r = -0,89), a strong positive correlation with ash content (r = 0,59). The correlation between total moisture and calorific value was strong (r= -0,66). Temperature grouping into three ranges (30-50°C, 50-70°C, and 70-95°C) showed consistent trends: total moisture decreased by 2%, ash content increased by 1%, and calorific value increased by 66 kcal/kg as tempreture rose. These findings suggest that optimal coal tempreture maangement is essential to maintining coal quality during storage .
Analisis Penurunan Produksi Air Tawar pada Fresh Water Generator di MV Sky Free Muhammad Miftahul Alim; Maxima Ari Saktiono; Daryanto Daryanto
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.v4i3.1444

Abstract

This study examines the decline in the performance of the Fresh Water Generator (FWG), an auxiliary system used to produce fresh water for operational activities and crew consumption aboard MV Sky Free. The FWG experienced a reduction in production capacity from the normal output of 10–12 tons/day to only 6–8 tons/day, creating the potential for freshwater shortages during vessel operations. The research employed a descriptive quantitative approach, with data collected through direct observation, documentation, and questionnaires distributed to relevant personnel. Data were analyzed using the Failure Mode and Effect Analysis (FMEA) method to determine the priority of failures based on their Risk Priority Number (RPN). The analysis revealed that scale accumulation on the evaporator plates represented the most critical failure mode, with an RPN of 216, followed by localized overheating of the heating pipe (192), leakage in the vacuum system (135), and condenser fouling combined with non-condensable gas accumulation (120). These failures reduce heat transfer efficiency, disrupt evaporation and condensation processes, and ultimately lower freshwater production. Corrective measures include cleaning the evaporator and condenser, repairing vacuum system leaks, and conducting comprehensive component inspections. Preventive actions involve implementing scheduled maintenance, monitoring operational parameters, and performing regular inspections. Consistent application of preventive and corrective maintenance successfully restores FWG performance, enabling freshwater production to return to its normal capacity of 10–12 tons/day and ensuring a sustainable freshwater supply for ship operations.
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 Kerusakan Sea Water Cooling Pump pada Mesin Induk di Kapal MV. Sjw Mountain George Jonhanes Baramata; Maxima Ari Saktiono; Sugeng Marsudi
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.v4i2.1452

Abstract

Sea water cooling pump is a vital component of the main engine cooling system, responsible for circulating seawater to absorb engine heat. Damage to Sea water cooling pump No. 2 on MV. Sjw Mountain reduced pump pressure from the normal range of 3.5–3.9 bar to 1.5–1.9 bar, causing the cooling system temperature to increase to 80°C and increasing the risk of engine overheating. This study aimed to identify the causes of pump failure, evaluate the level of failure risk, and determine appropriate corrective actions. The research employed the Fishbone diagram and Failure Mode and Effect Analysis (FMEA). Data were collected through observations, interviews with ship engineers, documentation, and questionnaires administered to the Chief Engineer, Second Engineer, Third Engineer , Fourth Engineer, and Oiler. The Fishbone analysis identified five contributing factors: man, method, machine, material, and environment. FMEA results showed that the method factor had the highest Risk Priority Number (RPN) of 210, followed by environment (175), machine (160), material (120), and man (100). The study concluded that inadequate inspection and maintenance practices were the primary causes of pump failure. Recommended improvements include strengthening the Planned Maintenance System (PMS), conducting regular inspections, replacing worn components, and improving crew supervision to maintain optimal cooling system performance.

Page 17 of 18 | Total Record : 174

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