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JURUTERA (Jurnal Umum Teknik Terapan)
Published by Universitas Samudra
ISSN : 23565438     EISSN : 23565438     DOI : https://doi.org/10.55377/jurutera.v10i02.8268
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Mechanical Engineering
Jurnal Ilmiah Jurutera menerbitkan dalam berbagai topik dalam bidang rekayasa dan sains yang dapat dikategorikan kedalam tema-tema berikut: - Teknik Elektro dan Informatika - Teknik Geologi dan Pertambangan - Teknik Arsitektur dan Perencanaan Wilayah dan Kota - Teknik Mesin dan Industri - Teknik Sipil dan Lingkungan - Teknik Perkapalan, Sistem Perkapalan, dan Kelautan - Multidisiplin
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 161 Documents
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PENGARUH PENGGUNAAN KOIL STANDAR DAN KOIL RACING DENGAN PENAMBAHAN KABEL GROUNDING TERHADAP UNJUK KERJA MESIN PADA SCORPIO Z 225 Wiryadinata, Fahry; A. Abdullah, Nasruddin; Bahri Widodo, Syamsul; Yakob, Iskandar
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 01 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i01.11608

Abstract

This study aims to determine the effect of using standard coils, racing coils, and racing coils with the addition of grounding cables on the performance of the Scorpio z 225 engine. Variations in the type of ignition coil with the addition of grounding cables are used to evaluate their impact on engine performance such as torque, power, fuel consumption, AFR, volumetric efficiency, thermal efficiency and ignition mass resistance. The results of the experimental test showed that the use of a racing ignition coil with the addition of a grounding cable obtained the highest torque and power at 8000 rpm, which were 19.21 Nm and 16.05 kW, respectively. Fuel consumption is also more efficient due to the use of a racing ignition coil with the addition of a grounding cable because combustion becomes more perfect. The use of a racing ignition coil and grounding cable can also provide better AFR than a standard ignition coil. The use of a racing ignition with the addition of a grounding cable provides the highest values ​​for volumetric efficiency and thermal efficiency at 8000 rpm of 62.8% and 42.99%. The lowest ignition mass resistance is also obtained from the use of a grounding cable with a value of 7.6 ohms at 8000 rpm.
Preventive and Corrective Maintenance Management of Sheng Jin RTM1300 Double PUR Coating Machine at PT Kayu Lapis Indonesia Yahya Hidaytullah, Muhammad; Safi'i, Muhammad
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 01 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i01.11632

Abstract

Abstrak Berdasarkan hasil analisis dan studi lapangan jadwal Maintaince dibuat dalam kegiatan pengabdian Kerja Praktek Kepada PT. Kayu Lapis Indonesia ini dibuat dengan membandingkan dan mengidentifikasi Maintainance prevective yang sudah ada dan Maintainance Corrective pada saat dilapangan. Ide ini didasari oleh data perwatan berkala terdahulu maupun perawatan setelah mengalami kerusakan, Jadwal Maintainane Berkala ini Dapat Bermanfaat dan dapat meminimalisir Kecelakaan kerja yang disebabkan oleh Mesin, dapat menghasilkan Produksi yang optimal dan mengurangi Maintainance Corrective (MC). Maintainance Preventif Tindakan preventif sangat penting untuk menjaga aset tetap berfungsi dengan baik. Dengan melakukan inspeksi rutin, Perawatan korektif adalah tindakan untuk memperbaiki peralatan setelah rusak. Sudah banyak penelitian tentang perawatan Mesin Coating dengan metoda RCM (Reability Centered Mainteinance), FMA (Failure Method Analisys) baik melalui eksperimen, asalisis, maupun studi numerik namun belum ada analisa perawatan terencana dan tidak tercana pada mesin Coating Merek Sheng jin dan Type RTM1300 Double PUR Perekatan Mesin Perekat di PT.Kayu Lapis Indonesia, Singkatnya penelitian ini akan mengkaji Analisa perawatan Mesin Coating Merek Sheng jin dan Type RTM1300 Double PUR Perekatan Mesin Perekat ditinjau dari Maintanance Preventif dan Maintainance Corrective Di PT. Kayu Lapis Indonesia, Kendal dengan pendekatan Analisa langsung guna untuk mengetahui performa dan umur komponen mesin tersebut, diharapkan hasil penelitian ini dapat di apliksikan dan diterpkan secara langsung di lapangan.
Fenomena aliran melintasi empat buah silinder sirkular yang tersusun in line square Manuels, Arif; Cut, Banta; Arif, Zainal
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 01 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i01.11828

Abstract

The development and application of circular cylinders are extensively used in various fields of engineering. These applications include the construction of offshore support pipelines, subsea pipeline networks, and shell-and-tube heat exchangers. Previous research has consistently shown that drag force, lift force, and vortex shedding occur when fluid flows past these cylinder arrangements. Consequently, further investigations have been conducted through numerical simulations, primarily aiming to mitigate these undesirable phenomena of drag, lift, and vortex shedding within the circular cylinder arrangements. This particular study focuses on four circular cylinders arranged in an in-line square configuration. The main cylinder diameter (D) is 25 mm, while the diameter of the disturbing body (BP) (d) is 4 mm, resulting in a diameter ratio (d/D) of 0.16. This cylinder arrangement was positioned within a narrow square channel with cross-sectional dimensions of H = 300 mm and L = 1500 mm. The setup had a blockage ratio of 25% and was tested at a Reynolds number (Re) of 5.0×104, based on the cylinder diameter. For the study, three variations of Inlet Disturbance Bodies (IDB) were placed at angles of 0o, 90o, and 270o in front of the two upstream cylinders, maintaining a gap ratio (G/D) of 0.16 relative to the circular cylinders. This numerical simulation research was carried out using 2D Unsteady-RANS via Ansys Fluent Student R2021 software. A structured mesh was employed for meshing, and the k-ω-SST model was selected for turbulence modeling. The findings of this research indicate that both the distance (L/D) and the implementation of three IDBs significantly influence the drag coefficient observed on the four circular cylinders arranged in an in-line square formation. Specifically, the addition of three IDBs around the two upstream cylinders at angles of 0o, 90o, and 270o proved to be highly effective in reducing the drag coefficient (CD) on cylinder 3 (downstream top) and cylinder 4 (downstream bottom).
Machinability of Polymer Foam Composites Reinforced with Oil Palm Empty Fruit Bunch (OPEFB) Fibers for Robot Car Body Applications Rosyadan, Dafa Amrina; Arif Adlie, Taufan; Arif, Zainal
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 01 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i01.12083

Abstract

Oil Palm Empty Fruit Bunches (OPEFB) is one of the solid wastes of the palm oil industry that is used as an alternative material to replace composite products. Composite is a material that is formed from a combination of two or more materials so that a composite material is produced that has different mechanical properties and characteristics from the forming material. This research aims to make the body of a food delivery car robot and obtain the characteristics of being able to machine (Drilling and Sawing), The test material used is a foamed polymer composite material reinforced with OPEFB fiber. The composite manufacturing process is carried out by the hand lay-up method. This test was carried out using 3 variations of drill bits with diameters of 4 mm, 6 mm, and 8 mm and by using cutting speeds of 20 m/min, 40 m/min, and 60 m/min. From the results of the comparison, the use of drill bits with a diameter of 8 mm obtained the most optimal results, where a cutting speed of 20 m/min produced a rotation speed of 796.17 rpm, a cutting speed of 40 m/min produced a rotation speed of 1592.3 rpm, and a cutting speed of 60 m/min produced a rotation speed of 2388.5 rpm. The greater the cutting speed, the greater the spindle rotation produced; the low cutting speed followed by the low spindle rotation does not raise the cutting force enough so that the composite plane will break.
PENGARUH RADIASI CAHAYA TERHADAP PANEL SURYA DAN BATERAI LITHIUM-ION PADA ROBOT PENGANTAR MAKANAN (STUDI EKSPERIMEN INDOOR DAN OUTDOOR) Halim Vizar, Mhd. Raqhil; Arif Adlie, Taufan; Amin, Muhammad
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 01 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i02.12099

Abstract

This research utilizes solar energy to generate electricity through solar panels with experimental study methods in outdoor (sunlight) and indoor (lights) conditions. Experiments using two 500-watt (12000 Lux) incandescent lamps produced a maximum power of 5.25 watts at 35°C with an intensity of 94.8 W/m², while sunlight produced up to 13.93 watts of power at 55°C with an intensity of 206.6 W/m² using a 20 Wp polycrystalline panel. The power increases to the optimum temperature, then decreases due to thermal effects. Low temperature improves efficiency; high temperature lowers it. A 21.6 Ah (12 V) lithium-ion battery stores 259.2 Wh of energy, and with the slow charging method, it takes about 2 hours to reach the 20% discharge limit. Indoor testing with light lamps provides a more stable alternative. The increase in light intensity increases power to a certain point before decreasing due to temperature.
Experimental Study of Heat Absorption in Concrete with Paraffin and Beeswax Encapsulated in Plastic Balls as Phase Change Materials Rejeki Josua Purba, Heri; Amin, Muhammad; Arif, Zainal
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 02 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i02.12058

Abstract

Energy consumption in the building sector, particularly for air conditioning (AC), accounts for approximately 30% of global energy use and one-third of greenhouse gas emissions. In urban areas, the use of conventional materials such as red bricks and concrete blocks contributes to increased indoor temperatures, thereby raising electricity demand. One promising solution is thermal energy storage technology using Phase Change Materials (PCM). This study presents an experimental investigation of heat absorption in 30×30×15 cm concrete specimens with the addition of paraffin and beeswax PCM encapsulated in plastic balls. The PCM content was varied at 0%, 5%, 10%, and 15% of the concrete volume. Heating was applied using three 160-watt incandescent lamps. The results showed that concrete containing PCM absorbed more heat than the control specimens. Heat absorption by paraffin was 8.19%, 9.83%, and 16.39%, while beeswax achieved 4.91%, 8.19%, and 14.75%. These findings suggest that the use of PCM encapsulated in plastic balls can enhance the thermal energy efficiency of concrete and reduce electricity consumption in buildings.
Analisis Pengaruh Besar Sudut Potong & Ketebalan Mata Pisau Pada Mesin Pencacah Daun Kering Terhadap Hasil Cacahan Izhar Amri, Muhammad; Bahri Widodo, Syamsul; Arif, Zainal
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 02 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i02.12077

Abstract

Technology development aims to simplify work and improve equipment efficiency, including modifying the dry leaf chopper to optimize chopping results. This modification focuses on variations in the angle and thickness of the blade to obtain finer shreds that meet the needs. This study aims to determine the most effective cutting angle and blade thickness in producing the best shreds. The research was conducted at the Mechanical Engineering Laboratory of Samudra University in August 2024. The blades used varied in cutting angles of 30°, 20°, and 10° and thicknesses of 3 mm and 5 mm. The quantitative analysis method was applied in this study using the independent sample T-test to evaluate the effectiveness of each variable. The results showed that a blade angle of 10° was the most effective angle for softening the chopped dry leaves. In addition, the most optimal blade thickness to produce fine shreds was 3 mm. This modification shows a significant improvement compared to the previous shredder, which used an angle and blade thickness with less than optimal results. With this research, it is expected that the dry leaf shredder can function more efficiently and produce shreds that meet the standards
Design and Test of Heat Absorption Using Heat Pipe Condenser for Patchouli Essential Destilazion Alfarizi, Daffa; A. Abdullah, Nasruddin; Amir, Fazri; Harmin, Amalia
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 02 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i02.12082

Abstract

This study aims to design and analyze a heat pipe condenser for heat absorption in the patchouli essential oil distillation process. The condenser was equipped with 6 heat pipes to condense patchouli essential vapor into liquid. In this design, the pan used is made of stainless steel with a capacity of 5 kg. In this study, a spiral copper pipe is also equipped to support heat absorption during the patchouli essential oil distillation process. In this study, several tests were carried out. the first without using a heat pipe, then a test equipped with a heat pipe, and the last using a heat pipe but not using water in a stainless steel pan. From the results of the study after the distillation of patchouli essential oil is as follows with testing without using a heat pipe on the condenser, the results of the absorption power were 840 J, and those using heat pipes had an absorption power of 42,924 J, and those using heat pipes but not using water in the pan had an absorption power of 39,900 J. Where in this study the heat pipe successfully absorbed heat power during the distillation process of patchouli essential oil.
Tungku Pemanas Logam Inovatif Untuk Proses Perlakuan Panas Berbahan Bakar Gas LPG Andriansah, Febri; Arif, Zainal; Suheri
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 02 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i02.12086

Abstract

This LPG gas-fueled metal heating furnace is designed to support heat treatment and metal smelting processes in small to medium-scale industries. With dimensions of 50 × 90 × 67 cm, this furnace is equipped with a 3600 RPM Sumura burner and blower to improve combustion efficiency and even heat distribution. The wall structure consists of SK32 firebrick, a fireproof blanket, caliboard, and an iron plate as outer protection. This layered insulation system aims to contain the heat in the combustion chamber so that it does not propagate out excessively. Tests showed that the combustion chamber temperature (T6) reached 1023°C in 60 minutes. The temperature decreases gradually from the inner to the outer layers: T5 (SK32 brick) 832°C, T4 (outer brick) 69°C, T3 (fiber blanket) 49°C, T2 (clapboard) 45°C, and T1 (iron plate) 43°C. The total heat transfer by conduction was recorded at 20.671 kW. These results show that the layered insulation design is effective in maintaining thermal efficiency and improving user safety. This furnace design has great potential to be applied in metal heat treatment activities by small industry players because it is energy efficient, easy to control, and economical. This research also opens up further development opportunities, such as the integration of an automatic control system and optimization of the shape of the combustion chamber.
Solar Distillation Experiment Parabolic Dish Integrated with Spiral Copper Tube Condenser Kurniawan, Wahyu; Amin, Muhammad; A. Abdullah, Nasruddin
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 02 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i02.12060

Abstract

The availability of clean water has become a major challenge due to population growth and climate change, despite 97.5% of the Earth's surface consisting of water, only 2.5% is suitable for consumption. Desalination has become an important solution to convert seawater into fresh water. One of the technologies used is the parabolic solar concentrator, which focuses sunlight to a single point to generate steam. Research using a parabola measuring 71.98 cm × 50 cm with a focal point of 62 cm produced 0.88 liters of distilled water with a cooler and 0.23 liters without a cooler. The efficiency increased from 11% to 12.5% with the use of a cooler. Spiral tubes also help to reduce the temperature of the outgoing steam, enhancing the effectiveness of the system.

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