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Jurnal Teknologi dan Vokasi
Published by Institut Teknologi Padang
ISSN : 29858690     EISSN : 29643694     DOI : https://doi.org/10.21063/jtv
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering
Jurnal Teknologi dan Vokasi (JTV) mengakomodasi pemaparan informasi ilmiah dalam bentuk artikel penelitian, artikel teknis, artikel konseptual, ataupun artikel laporan studi kasus yang sesuai dengan fokus dan ruang lingkup jurnal ini. Ruang lingkup JTV mencakup semua masalah di bidang Teknologi Rekayasa Listrik, Rekayasa Kontruksi Bangunan, dan Teknik Mesin, tapi tidak terbatas pada topik: Sistem tenaga listrik, Mesin-mesin listrik dan sistem konversi energi, Mikrokontroler dan arduino, Teknologi informasi dan sistem kontrol, telekomunikasi, Teknik elektromedik Transportasi Jalan dan Jembatan Manufaktur Material Energi Baru dan Terbarukan Go Green
Arjuna Subject : Energi (semua kategori) - Energi (Lain-Lain)
Articles 141 Documents
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PEMBUATAN PAVING BLOCK BERONGGA MENGGUNAKAN AGREGAT BERGRADASI SERAGAM Mulyati, Mulyati; Misbah, Misbah; Aryf Prasetyo, Dymas
Jurnal Teknologi dan Vokasi Vol 3 No 1 (2025): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2025.3.1.72-78

Abstract

Pervious paving blocks are type of concrete brick (paving block) that is designed with pervious or gaps in the interior which become water absorption pathway into the soil, thereby helping reduce waterlongging and supporting a natural drainage system.  This research aims to obtain compressive strength values and maximize the infiltration rates of perforated paving bocks using uniformly graded aggregates.  The coarse aggregate used is split sizes 2-10 mm 1nd 10-20 mm with a mixture ratio of 1 Pc : 2 Split, 1 Pc : 3 Split, and 1 Pc : 4 Split.  The paving block test object uses a rectangular mold with dimensions of 20 cm x 10 cm x 6 cm.  Tests carried out on paving block test specimens were compressive strength and infiltration rate at the age of the test object of 28 days.  Test results for compressive strength and infiltration rate of paving block specimens using a 5-10 mm split for a ratio of 1:2, 1:3, and 1:4 respectively, the compressive strength was 14.50 MPa; 8.17 MPa; 5.33 MPa, and  an infiltration rate of 3.16 mm/s; 6.15 mm/s; 8,61 mm/sec, and using a split 0f 10-20 mm for a ratio of 1:2, 1:3, and 1:4 respectively, the compressive strength is 21.83 MPa; 10.87 MPa, 7.30 MPa, and an infiltration rate of 4.04 mm/s; 7.18 mm/s; 10.04 mm/sec.  Using a larger uniformly graded aggregate size can increase the compressive strength and maximize the infiltration rate of paving block.  The mixture ratio using more uniformly graded aggregate can increase the infiltration rate but decrease the compressive strength of the paving block.   Keywords: Compressive Strength, Infiltration Rate, Hollow Paving Blocks, Uniformly Graded Aggregate, Mix Ratio, Continuous Drainage
ENHANCING VOLTAGE STABILITY AND ENERGY OUTPUT OF PLTM SALIDO IN THE PLN DISTRIBUTION NETWORK Alfith, Alfith; Indriani, Rani; Bandri, Sepannur
Jurnal Teknologi dan Vokasi Vol 3 No 1 (2025): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2025.3.1.79-86

Abstract

Distributed generation (DG) integration in PLN’s extended distribution network often encounters voltage instability issues due to high voltage drops. These challenges restrict power delivery and can lead to disconnection, particularly during peak load conditions. This study investigates methods to enhance voltage stability and optimize the energy output of PLTM Salido. Using ETAP Power Station software, various operational schemes were simulated to address the problem of low terminal voltage. The study focused on the impact of reactive power injection and governor settings optimization to maintain generator performance under high demand. Results indicate that reactive power injection significantly improves terminal voltage, ensuring continuous power delivery. Adding a third generator unit further increased energy supply capacity, leveraging the full potential of available hydropower. The optimized operation of PLTM Salido with two generators increased daily energy output by 32.2%, while introducing a third generator boosted energy delivery by 107%. This research highlights the critical role of reactive power management and system configuration in enhancing the performance of small-scale hydropower plants in rural distribution networks.
PERANCANGAN SISTEM KENDALI HEXACOPTER MENGGUNAKAN FUZZY LOGIC CONTROL Al, Al; Saputra, Arifwindi; Premadi, Aswir; Effendi, Asnal; Dasman, Dasman
Jurnal Teknologi dan Vokasi Vol 3 No 1 (2025): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2025.3.1.87-95

Abstract

The development of hexacopters has progressed significantly in both hardware and software, leading to increased complexity. Despite these advancements, several challenges remain. The nonlinear, multivariable, and dynamic nature of hexacopter systems often results in flight instability, suboptimal precision in movements, and reduced flight duration. To address these issues, this study proposes the implementation of a fuzzy logic control (FLC) system to enhance the performance and stability of hexacopters during flight. The control system aims to minimize rise time, settling time, and overshoot. The research methodology involves developing a mathematical model of the open-loop system using the System Identification Toolbox in MATLAB, optimizing PID values through the PID Tuner, and designing the fuzzy control system based on error and delta error. The open-loop system demonstrates performance metrics of rise time (Tr) 4.60 s, delay time (Td) 2.76 s, peak time (Tp) 6.50 s, settling time (Ts) 5.91 s, and overshoot (Mp) 1.29%. With PID control, the performance improves to rise time (Tr) 3.24 s, delay time (Td) 1.85 s, peak time (Tp) 10.00 s, settling time (Ts) 9.55 s, and overshoot (Mp) 0%. Furthermore, the fuzzy logic controller achieves superior results with rise time (Tr) 3.19 s, delay time (Td) 1.53 s, peak time (Tp) 4.64 s, settling time (Ts) 3.37 s, and overshoot (Mp) 0%.
STUDI GANGGUAN TRANSFORMATOR DISTRIBUSI PADA JARINGAN DISTRIBUSI 20 KV DI PT PLN (PERSERO) RAYON NATAR Khalifah K, Siti; Anasta, Nambi
Jurnal Teknologi dan Vokasi Vol 3 No 1 (2025): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2025.3.1.96-100

Abstract

The use of distribution transformers has a very important role in the distribution of electrical energy in a distribution system. The transformer used must be maintained properly so that its reliability is maintained stable, so as to avoid the form of interference. If a disturbance occurs, it will result in a break in the continuity of electricity distribution to consumers and also losses for consumers and PLN itself. Some disturbances that often occur are due to overloads, unbalanced loads, lightning strikes and internal disturbances in the transformer (disturbances originating from the transformer itself). Through this research, a case study will be taken on the 20 kV distribution network at PT PLN (Persero) Rayon Natar. Keywords : Distribution System, Transformer, PLN, Rayon Natar
STUDI NUMERIK ALIRAN 3D INTERAKSI AIRFOIL DAN PLAT DATAR Rachman, Arfidian; Yuana Dewi, Arfirta; Effendi, Asnal
Jurnal Teknologi dan Vokasi Vol 3 No 1 (2025): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2025.3.1.101-107

Abstract

The effect of secondary flows in the wing-body configuration on aircraft—that is, the presence of wingtip-vortex on the tip region and the creation of multiple elements of the vortex flow on the endwall region—is the basis for studies of the existence of these secondary flow structures. These two factors combined will obstruct the main flow. The presence of this blocking effect will have an impact on the lift and drag aerodynamics, which directly impacts the wing's efficacy and efficiency. The saddle point's position shifting toward the pressure side is a phenomenon that can be seen in the endwall area. On the other hand, the area of maximum pressure on the lower surface travels towards the press side, and the movement of the minimum pressure point on the upper surface is found to be closer to the leading edge based on the isobar contour. The study will be carried out experimentally on a flat plate model with a wing shape change with an angle of attack variation (α) = 0o.
PENGARUH LUBANG DAN JUMLAH DISK TERHADAP PERFORMA TURBIN TESLA Marfizal, Marfizal; Wardianto, Dedi; Sufiyanto, Sufiyanto
Jurnal Teknologi dan Vokasi Vol 2 No 1 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.1.17-26

Abstract

This research focuses on the effect of holes and the number of disks on the performance of the Tesla turbine, where this experiment uses one Tesla turbine unit with a constant inflow discharge of 0.037 m3/s and a constant load of 50 kg on. Then testing was carried out by varying the number of holes on the disk (4, 6, 8) and varying the number of disks (11,13, 15) with a hole diameter of 10 mm, disk diameter of 160 mm, disk thickness of 0.5 mm. After testing and data analysis, it can be seen that the variations in the number of holes on the disk (4,6,8) and the number of disks factor can be concluded that the maximum power is 310,148 Watts for the number of holes on the disk factor while for the number of disks factor it is 301,154 Watts, where there is a difference of 8,994 Watts. Meanwhile, the maximum efficiency is 73.754 for the number of holes in the disk, while for the number of disks it is 71.652, where there is a difference of 2.102.
PENGARUH PENAMBAHAN BAHAN PLASTIK MIKA SEBAGAI FILLER PADA CAMPURAN (AC-WC) DENGAN PENGUJIAN MARSHALL Misbah, Misbah; Wahyuni, Serli
Jurnal Teknologi dan Vokasi Vol 2 No 1 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.1.1-8

Abstract

In terms of improving road pavement, there are several things that must be paid attention to, namely the quality of the aggregate used, the method of implementation, and the quality of the asphalt. The method that is often used to improve the quality of asphalt is by adding additives. These include charcoal, plastic, and others. Plastic has many benefits but also has negative sides, especially plastic waste. However, plastic waste opens up opportunities to be used in the field of road construction. In research, mica plastic can be used because it has characteristics that are stronger than other types of plastic and more elastic when heated. Mica plastic is thermoplastic, not reactive at room temperature, except for certain types of solvents which can cause damage. In this research the author tries to determine the effect of adding mica plastic and determine the aggregate gradation characteristics of the Asphalt Concrete Wearing Course (AC-WC) mixture based on the Marshall test. The results of this test show that all experiments with the addition of mixing carried out for the addition of 0% mica plastic obtained an optimum asphalt content of 5.50%, with an addition of 2% the optimum asphalt content was 5.50%, with the addition of mica plastic as much as 5.50%. 4% cannot be used because the test results do not meet specifications, whereas with the addition of 6% mica plastic, the optimum asphalt content value is 6.25%. So, the best effect of adding mica plastic to hot asphalt (AC-WC) is mixing plastic levels of 0% and 2% with the optimum asphalt content obtained at 5.50%. For the Stability, Flow, VMA, and VFB values, the average results meet the specified specifications, while for the MQ and VIM values, the values ​​increase and decrease at each specified percent, thus affecting the results and performance of the asphalt used. So, it can be concluded that adding mica plastic to the asphalt mixture cannot be used, further research is needed to get more accurate results.
PENGARUH PENAMBAHAN SILIKA FUME TERHADAP KUAT TEKAN BETON A, Arman; Mulyati, Mulyati; Nugroho, Fajar; Fakhrizal, Fakhrizal; Fadhil Azman, Hanif
Jurnal Teknologi dan Vokasi Vol 2 No 1 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.1.9-16

Abstract

The development of technology in Indonesia is currently experiencing a fairly rapid development, especially in the construction sector. Concrete is one of the construction materials that is often used in various types of construction such as buildings, bridges, roads, dams and other civil infrastructure. Concrete consists of a mixture of coarse aggregate, fine aggregate, cement, water and sometimes concrete can also be added with chemicals and non-chemicals in certain ratios. Therefore, this study aims to determine the effect of the addition of Silica fume on the compressive strength of concrete. In this study using Silica fume with percentages of 0%, 4%, 7%, and 10% of the cement weight with 1 sample for each percentage. Examination of the physical properties of the concrete material is carried out in the Civil Engineering laboratory of ITP and testing of the compressive strength of concrete is carried out in the laboratory of the Department of Public Works. This research uses the standard material of SNI 7656-2012. The test object used is a steel cylinder with a diameter of 150 mm x a height of 300 mm. Based on the results of the compressive strength test of concrete carried out at the Department of Public Works laboratory at the age of 28 days from normal concrete, the compressive strength value was 27.03 MPa, concrete with the addition of 4% Silica fume experienced an increase in compressive strength of 1.59% with the obtained value The compressive strength is 27.46 MPa, the concrete with the addition of 7% Silica fume has decreased the compressive strength by 8.38% with the obtained compressive strength value of 24.76 Mpa, and the concrete with the addition of 10% Silica fume has decreased the compressive strength by 26.89% with the obtained compressive strength value of 19.76 Mpa. From this data it is known that the optimum compressive strength value is obtained with the addition of 4% Silica fume, which is 27.46 Mpa. After conducting this research, it can be concluded that the addition of Silica fume to the mixture for making concrete can be carried out with the provisions for the addition of Silica Fume below 4% of the weight of cement.
PERBANDINGAN METODE COILED TUBING DAN PUMP PADA APLIKASI SOLVENT TREATMENT BERDASARKAN PARAMETER SUCCESS RATIO DAN CUT OFF DI LAPANGAN FASH Melysa, Richa; Anwar, Irwan; Sulistya, Jehan; Afdal, Afdal
Jurnal Teknologi dan Vokasi Vol 2 No 1 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.1.27-38

Abstract

The Fash field is a heavy oil category managed by PT. Chevron Pacific Indonesia with sandstone rock type. So that along with the production of oil to the surface, there will be production problems such as asphaltene. To overcome the problem of asphaltene, a solvent is used to dissolve asphaltene in the form of a solvent. There are 2 methods used to perform solvent injection, namely by using a coiled tubing and by using a pump. This research will discuss the success rate of each method in the solvent treatment application and the determination of the threshold value in order to determine the right candidate well for each method of use. In determining the level of success, Minimum oil recovery for each method, namely coiled tubing and pump is 8 bopd and 4 bopd and to determine the threshold value, a parameter that has a certain value is used as a reference to maximize the use of existing methods in solvent treatment applications. The parameters used are asphaltene content (%), water cut (%), wellhead temperature (°F), and reservoir temperature (°F).    
ANALISIS PUSAT LISTRIK MINIHIRO (PLTM) STUDI KASUS : SALIDO KECIL PESISIR SELATAN SUMATERA BARAT Indriani, Rani; Alfith, Alfith
Jurnal Teknologi dan Vokasi Vol 2 No 1 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.1.39-46

Abstract

In this research, we used a variety of methods that can be applied to the PLTM Salido to address the very low voltage terminal problem of the generator. This is especially true in situations where peak loads occur, which requires these plants to be removed from the system. The power flow analysis is performed using the ETAP Power Station program to simulate the search for operating schemes that can fix the situation. The results of the analysis show that through the injection of reactive power from the generator to the PLN network and the optimization of the governor settings, PLTM Salido can generate more energy by supplying power to PLN networks, even under peak load conditions. This allows PLTM Salido to increase the amount of energy sent from the power plant to the South Coast distribution network. After optimization, the value increased to 14.06 MWh per day from the previous 10.64 MWh By adding one more power plant unit, the energy supply of the PLTM salido could increase to 22 MWh a day.

Page 7 of 15 | Total Record : 141

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