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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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DESAIN PEMBANGKIT LISTRIK TENAGA SURYA Marfizal, Marfizal; Tonadi Shodiq, Een; Wardianto, Dedi; Sufiyanto, Sufiyanto
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.13-21

Abstract

The distribution of PLN electricity to remote areas has not been achieved so there are other alternative resources needed, for example solar power plants. The aim of this research is to design and analyze the potential for a solar power plant with an off-grid system that can be used to supply residential homes when PLN power goes out. This solar power plant is designed for a load of 17 kwh / per day, the efficiency (ηinv) of the inverter is 93%, the efficiency of the battery block is ηBAh = 85%, the DC system voltage is chosen as 48 V. The solar power generation system designed in this research is an off system -lattice. The main components were chosen based on the calculation results for the number of panels of 3563 Wp, with a total storage battery of 1172 Ah. If you use 48v/160ah Lithium batteries connected in parallel using 7 batteries with a charging time of 7.3 hours, minimum scc current of 74 Ah, inverter current of 41.6 Ah with a panel tilt angle of 15 degrees.
PERENCANAAN SISTEM KENDALI MODEL REFERENCE Al, Al; Rahmawati, Gusri; Premadi, Aswir; Effendi, Asnal
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.37-46

Abstract

The commercial use of drones has increased rapidly in this sector in the last few decades, one of which is the Hexacopter Type Unmanned Aerial Vehicle (UAV). Hexacopter is a flying robot without a pilot that can be controlled manually using a remote control and controlled automatically or on autopilot. The advantage of the hexacopter is its ability to maneuver flexibly, it can move in 8 cardinal directions without needing to turn first. However, despite their advantages, certain hexacopters must continue to fly stably under a variety of changing conditions, such as changing weather, different loads, or changing environmental conditions. For this reason, a control system is needed that is able to adapt to these changes. This condition makes it interesting to carry out experimental and simulation studies, namely designing a hexacopter with Model Referene Adaptive Control (MRAC) control. By using a Model Reference Adaptive Control (MRAC) control system with the main control using PID control, the response given is good and optimal, the system parameters reach the values: rise time (ts) 1.0709 s, delay time (td) 0.99 s, peak time (tp ) 2.6600 s, settling time (ts) 3.9351 s, overshoot (mp) 4.0847 and steady state error 0.0001%. The mathematical analysis of the MRAC control system needs to be studied in more depth so that the MRAC control calculations become more accurate.
RANCANG BANGUN ALAT PERAJANG UBI KAYU DENGAN TRANSMISI PULI DAN SABUK PADA PUTARAN MOTOR LISTRIK 1400 RPM DAN DAYA MOTOR 0,5 HP Anwar, Irwan; Afdal, Afdal; Wardianto, Dedi
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.30-36

Abstract

Cassava is one of a growing food commodity today, the perpetrators were racing home industry to produce cassava-based foods are diverse. In the process of its managing society many still use the traditional way. The process of working with the traditional way gives less satisfactory results because of low productivity, therefore the authors are trying to develop a device capable of producing sweet chopper effective and efficient productivity. Tool chopper cassava with transmission pulleys and belts on electric motor rotation 1400 rpm and 0.5 hp motor power, capable of generate the cutting capacity up to 66 kg / hr. This sweet chopper tool has two blades that the bolts on the disc blades, disc with angular velocity 73 rad / s and the force in the result by a disk of 24.56 N. Round of 700 rpm drive pulleys with a reduction ratio of 2. Materials used are pulleys FC30 and belt types used are belt type A, with a shaft diameter of 12 mm and the shaft is in motion the 15 mm. Bearings used are bearing 6202. The tool has a grounding chopper yam piece with sisitem spring press, which can minimize the accident rate.
PERENCANAAN DAN PEMBUATAN ALAT PENGUPAS KULIT JAGUNG Sulaiman, Sulaiman; Aprilianto, Karolus
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.47-53

Abstract

Food crop commodities are the dominant commodities and are developed intensively, especially corn. After the corn is harvested, it is necessary to take several handling steps, one of which is by peeling the skin and shelling corn, previously farmers carried out the process of peeling the skin and picking corn manually which requires a lot of labor and costs and a long time. This causes very little yield, and not infrequently a lot of corn is of poor quality due to ineffective processing. From the existing problems, the author designed and made a combination of peeling machine and corn sheller. The design of the corn peeler and sheller uses an electric motor with a capacity of 0.5 HP as a drive. From the test results of the corn peeler and sheller machine, trials were carried out three times with a period of 2 kg, 3 kg, and 4 kg of corn that was still intact with skin. After the corn has been weighed, the corn is then put into the corn peeler and sheller machine with different treatments, namely putting corn into the machine one by one with pauses, inserting corn one by one, and the third trial is inserting corn one by one without pause, so that the average time produced is 1 minute 6 seconds from the peeling and picking process.
ANALISIS RUGI-RUGI DAYA DAN JATUH TEGANGAN PADA SALURAN TRANSMISI 150 KV GARDU INDUK PANDEAN LAMPER-PUDAK PAYUNG Khoirunnisa, Ulfah; Bayu Murti, Budi; Budiyanto, Maun
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.54-68

Abstract

The need for electrical energy now extends to remote areas. According to KESDM, the number of household and industrial customers in Central Java and DIY increased from 2020 to 2022. To maintain system balance and accommodate the increasing load, power distribution efficiency is required. At the transmission stage, electrical energy is transferred on a large scale from the power plant to the substation through a 150 kV SUTT. During the distribution of energy, power losses and voltage drops often occur, which are influenced by transmission distance, conductor cross-sectional area, conductor resistance, and load. To ensure that power losses and voltage drops remain below 5% according to SPLN No. 72 of 1987, it is necessary to evaluate whether the transmission load of the Pandean Lamper-Pudak Payung Substation is in accordance with the capabilities of the 1xACSR 240/40 conductor. The research method uses voltage and current data at peak load which is analyzed by manual calculation and ETAP 19.0.1 simulation. The results of the percentage comparison of manual calculation and simulation of power losses and voltage drops are between 0.5%-1%. The largest power loss occurred on January 15, 2024 amounting to 543 kW from manual calculation and 563.5 kW from simulation results. The percentage value of power losses reached 5.66%, which exceeded the SPLN limit. The highest voltage drop of 2.01% occurred on the same date. Based on this value, the Pandean Lamper-Pudak Payung Substation transmission line has reached its maximum load and it is necessary to increase transmission capacity by adding conductors.     
PEMANFAATAN SERAT BAMBU SEBAGAI BAHAN TAMBAH CAMPURAN BETON Mulyati, Mulyati; Arman, Arman; Aulia Farhan , Muhammad; Alawiyah, Nurfelia
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.69-76

Abstract

Bamboo is a fiber-producing plant that can be used as an alternative fiber additive for concrete mixes to overcome cracks in concrete. The aim of this research is to determine the compressive strength and split tensile strength values of concrete from the use of bamboo fiber as an additional ingredient in the concrete mixture. The bamboo used is petung bamboo and apus bamboo, the fiber size is 20 mm long and 1-2 mm in diameter, with a percentage of 1%, 2%, 3%, 4%, 5% of the cement weight. Concrete mix planning uses SNI 7656-2012 for a planned compressive strength of 20 MPa at 28 days. The results of testing the compressive strength and split tensile strength of concrete from the percentage of use and, for petung bamboo, the average concrete compressive strength was respectively 23.58 MPa, 24.69 MPa, 19.45 MPa, 17.17 MPa, 13.02 MPa, and the split tensile strength of concrete were respectively 2.05 MPa, 2.40 MPa, 2.06 MPa, 2.03 MPa, 2.02 MPa, while for apus bamboo the average concrete compressive strength was obtained respectively 22.56 MPa, 23.07 MPa, 15.37 MPa, 14.09 MPa, 14.07 MPa, and the average splitting tensile strength of concrete is 2.15 MPa, 2.50 MPa, 2.47 MPa, 2.40 MPa. Using of up to 2% bamboo fiber in the concrete mixture can increase the compressive strength of the concrete, and using up to 5% bamboo fiber can increase the split tensile strength of the concrete. Petung bamboo fiber produces a higher compressive strength of concrete than apus bamboo fiber, while apus bamboo fiber produces a higher split tensile strength of concrete than petung bamboo fiber
VARIASI KETINGGIAN SUMBER AIR TERHADAP TEKANAN DAN DEBIT AIR POMPA HIDRAM Eka Putra, Ismet; Wardianto, Dedi; Pratama, Agung
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.77-83

Abstract

The hydram pump is a water pump that is energy efficient and environmentally friendly. The hydram pump is an appropriate technology in the field of pumping that uses water momentum (water hammer) to raise water, so the hydram pump is one of the water pumps that does not use fuel and electricity. Much research has been carried out regarding hydram pumps, but there is still much that needs to be studied so that knowledge about hydram pump planning is better. The effective performance of a hydram pump is influenced by several parameters, including drop height, pipe diameter, pipe type, characteristics of the waste valve, length of the inlet pipe and length of the pipe on the waste valve. The water source comes from the Unand Dam River flow, with variations in the height of the water source, namely 0.7m, 1.3m and 1.9m. with water flowing using an inlet pipe with a pipe diameter of 2 inches with a pipe length of 8 meters, and an outlet water pipe with a diameter of 1 inch with a height of 8 meters. The first test with a water source height of 0.7m obtained an inlet water pressure of 1.1 bar and an outlet water pressure of 1bar, with an outlet water pipe height of 8 meters which resulted in an outlet water discharge of 0.037 (L/second). In the second test with a water source height of 1.3 m, the inlet water pressure was 1.3 bar and the outlet water pressure was 1.2 bar, with an outlet water pipe height of 8 meters which resulted in an outlet water discharge of 0.071 (L/second). And in the third test with a water source height of 1.9m, the incoming water pressure was 1.4 bar and the outgoing water pressure was 1.3 bar, with an outgoing water pipe height of 8 meters which resulted in an outgoing water discharge of 0.091 (L/second).
SISTEM TRACKING DAN MONITORING MOBIL RENTAL MENGGUNAKAN SENSOR GPS BERBASIS NODEMCU ESP32 Alfith, Alfith; Effendi, Asnal; Al, Al; Maulana, Rizki
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.84-96

Abstract

Obtained conditions in which the Neo6 GPS module can detect the Earth's coordinates in the form of latitudes and volumes as well as the speed of the vehicle's movement to its coordinates. The app knows where you are based on the coordinates, speed, and impact of the car. In addition, the app sends speed warning notifications. In addition, the application can detect the correct or incorrect username and password to protect the view form. In addition, for research on a straight road and at a constant speed, the accuracy of the equipment will be tested by collecting GPS speed data and actual speed data if there is a significant change in speed in a short period of time. With four vehicle collision detection positions, testing this system yields an accurate conditional value. If an accident occurs, it will be immediately sent to the application and sent to a vehicle crash site used, as well as to the firebase database.
KONSERVASI ENERGI SISTEM PENCAHAYAAN UNTUK KENYAMANAN RUMAH TINGGAL DUA LANTAI MENGGUNAKAN SIMULASI DIALUX EVO Matalata, Hendi; Wustha Johar, Leily; Manap, Abdul; Yulianto, Didik
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.97-105

Abstract

In order to improve energy conservation efforts and comfort in building structures, all building managers such as professional associations, consultants, contractors, suppliers can apply the concepts of lighting system design procedures in building structures that can be utilized by planners as required by SNI 6197:2020. In this study, technical calculations were carried out using dialux evo software to obtain lighting intensity based on the function of the residential room. From the results of the research that has been carried out, the minimum average lighting level of the lighting intensity of each room function in natural lighting during the day, there are 2 rooms that meet the requirements, namely the bedroom and bathroom (KM1, for this purpose artificial lighting is carried out using lamps, at night the minimum average lighting level on the first floor gets a large lighting intensity of the room that meets the requirements based on SNI 6197:2020 which is required for each room function. To save energy, the bedroom and bathroom (KM1) switches are in the off position during the day while at night the switches for each room are in the on position.
STUDI ALIRAN 3-D NEAR ENDWALL PADA INTERAKSI AIRFOIL DAN PLAT DATAR Rachman, Arfidian; Yuana Dewi, Arfita; Effendi, Asnal
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.106-112

Abstract

Studies of the existence of these secondary flow structures are based on the effect of the emergence of secondary flows in the wing-body configuration on aircraft, i.e. the presence of wingtip-vortex on the tip region and the creation of several elements of the vortex flow on the endwall region, both of which together will cause the blockage of the main flow. The existence of this blockage effect will affect the aerodynamic characteristics of the lift and drag, where it directly affects the effectiveness and efficiency of the wing. In the endwall area the phenomenon can be observed is the shift of the position of the saddle point towards the pressure side. Whereas from the isobar contour the movement of the minimum pressure point on the upper surface is found to be closer to the leading edge, and the area of maximum pressure on the lower surface moves towards the press side. The research will be conducted experimentally on a wing geometry variation modeled on a flat plate with an angle of attack variation (α) = 0o.

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