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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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PENGGUNAAN ABU BATU DAN SPLIT DALAM PEMBUATAN PAVING BLOCK Mulyati, Mulyati
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.1-5

Abstract

This study used stone ash and split as a mixture in the manufacture of paving blocks.  The purpose of this study was to determine the compressive strength and water absorption of paving blocks from the use of stone ash and split.  The mixed ingredients for making paving blocks as a comparison are cement and sand with a composition of 1:8, and the use of cement, stone ash, split with a composition of 1:6:4, 1:8:4, 1:8:8.  Making paving block specimens using a machine with a mold size of 21 cm x 10.5 cm x 6 cm.  Testing of the compressive strength and water absorption of paving blocks was carried out at 28 days of age.  The results of the study used sand and stone ash and split in the manufacture of paving blocks with a ratio of 1:8 and 1:6:4, 1:8:4, 1:8:8, obtained an average compressive strength of 5,.29 and 5.07 MPa, 7.99 MPa, 4.51 MPa respectively, and for water absorption an average of 10,64% and 7.14%, 9.70%, 9.87% respectively. 
KAJIAN KELAYAKAN SISTEM PENTANAHAN PADA TRAVO AUXILIARY CONTROL BUILDING PADA PEMBANGKIT LISTRIK TENAGA AIR (PLTA) SINGKARAK Yan Putra, Dodi; Asrul, Junaidi; Firmansyah, Firmansyah; Roswaldi, Roswaldi; Julsam, Julsam
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.6-11

Abstract

The grounding system at the Singkarak Hydroelectric Power Plant (PLTA) uses the Grid Grounding system. In this study, we re-checked the grounding value at the Travo Auxilary Building control PLTA Singkarang, where the existing results during commissioning during the initial installation of the Travo Auxilary grounding system obtained a value of 1.22 Ohm. While the results of measurements again to carry out the feasibility of the grounding value on the Auxilary building control transformer are obtained the average value of measurements carried out with the ear tester brand Koriyutsu 4106 with a variable auxiliary electrode distance of 5 meters, 10 meters obtained a grounding value on tarvo 1 Auxilary Building 1 of 1.2 Ohm and also on transformer 2 Auxilary building control obtained a grounding value of 1.2 Ohm while the calculation results obtained a grounding value by calculating the Grid method obtained a grounding value of 0.26 Ohm. So from the results of measurements and calculations, a difference of 0.94 Ohm is obtained. From the measurement results and also the calculations, the grounding of the auxiliary building control transformer is still in very proper condition according to SPLN T5.012. year 2020 and PUIL 2011.
PERANCANGAN ALAT MONITORING SISTEM KERJA SOLAR PANEL BERBASIS IoT (INTERNET OF THINGS) Kurnia Putra, Dian; Alfith, Alfith; Shaliha Rosa, Amila
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.12-20

Abstract

Creating a system that can track the position of sunlight to increase the efficiency of receiving light by solar panels, as well as monitor the power generated by solar panels based on the internet of things. The results of this study indicate that increasing solar panel power using a solar tracking system for static solar panels can optimize the output power of solar panels by 27.4%, while increasing solar panel power using a solar tracking system for solar tracking with a fresnel lens can optimize power. solar panel output by 14%.
PENGARUH PENAMBAHAN SERAT KAWAT BENDRAT TERHADAP KUAT TEKAN DAN KUAT TARIK BETON NORMAL A, Arman; Sanjaya, Faldi; Wardi, Syafri
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.21-30

Abstract

Along with the progress of the times, technology in the field of building construction has also experienced rapid development, including concrete technology, almost every aspect of human life is always related to concrete. The use of added materials has been widely used in the concrete mix process. Based on this, this study aims to determine the increase in the compressive strength and optimal split tensile strength of concrete with added material of bendrat wire fiber, and the percentage addition of 0%, 4%, 5%, 6%, the tensile strength of concrete is only around 9% - 15 % of compressive strength. The approximation value obtained from repeated testing reaches a strength of 0.50 – 0.60ƒ????′, so for zero-mal concrete a value of 0.57ƒ????′ can be used. The analysis review of this research is the compressive strength and split tensile strength, with a concrete cylinder test object with a diameter of 15 cm and a height of 30 cm. The results obtained from normal concrete with a compressive strength of 9,62 N/mm2, and a compressive strength of 4%, with a result of 13,01 N/mm2, and a compressive strength of 5%, with a result of 12,45 N/mm2, and a compressive strength of 6 %, with a yield of 11,03 N/mm2. The quality of the concrete planned for K 225 which was tested at the age of 3 and 28 days was 48 samples and consisted of 3 variations, each variation of 6 samples. From the research, it was found that the highest compressive strength of concrete at the age of 3 days was 12,45 Mpa with, at the age of 28 days the highest compressive strength of concrete was 22,08 Mpa. The lowest compressive strength value of concrete at the age of 3 days is 9,62 Mpa with the lowest value of concrete compressive strength at the age of 28 days is 14,72 Mpa. It can be concluded in this study that the more wire fibers used, the higher the value of the compressive strength of concrete. From the research, it was found that the highest split tensile strength of concrete at the age of 3 days was 13,01 Mpa with, at the age of 28 days the highest value of the split tensile strength of concrete was 22,08 Mpa. The value of the lowest split tensile strength of concrete at the age of 3 days is 9,62 Mpa with the lowest value of split tensile strength of concrete at the age of 28 days is 14,72 Mpa. It can be concluded in this study that the more wire fibers used, the higher the value of the compressive strength of concrete.
PEMBUATAN DAN PENGUJIAN MESIN PERAJANG TALAS Wardianto, Dedi; Hafni, Hafni; Hadi Perkasa, Mego
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.31-37

Abstract

This taro chopper machine will work when the electric motor is turned on it will rotate then the rotary motion of the machine is transmitted to the pulley by using a v-belt to move the shaft, the disk where the knife will rotate and the taro is ready to be chopped. After the taro is chopped it will come out through the funnel. So far, industry or industrial machinery products have shown very rapid capabilities, both in terms of volume and in terms of the variety of products produced. Product development is not only marked by the fulfillment of public interest in industrial products, both small and large scale but also leads to exports which will increase foreign exchange for the Indonesian state. There are many agricultural communities, one of which is taro because the season is suitable for the territory of Indonesia. With the development of appropriate technological advances, technological tools can be found that can process agricultural products, so thoughts are made on how to increase and ease work or process crops or process taro products to increase selling prices even better. The general aim of the research is to facilitate the slicing of taro for chip entrepreneurs, especially taro chips, and it can also be operated for cutting or slicing such as tempeh, potatoes, sweet potatoes, carrots, etc. The specific purpose for making this tool is to know the capacity of the taro chopper, to know the components that exist in the taro chopper, and to analyze the results of the taro chopper. From the manufacture of the tool, it can be concluded that this taro chopper is operated semi-automatically using an electric motor. This machine chopping method is a single chopper with 1 type of knife that cuts the taro continuously. This taro chopper machine design requires power from an electric motor of HP. The effective capacity of the tool obtained by the taro chopper machine is 33.3 gr/s.
PENGUJIAN TURBIN ANGIN DENGAN VARIASI KECEPATAN ANGIN, PUTARAN MOTOR DAN PUTARAN GENERATOR DENGAN MENGGUNAKAN TEROWONGAN ANGIN JENIS HORIZONTAL 3 BLADE Sulaiman, Sulaiman; Gunawan, April
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.38-44

Abstract

Where wind is used at speeds of 3,4,5 and 6 m/s .Blade type with pine wood material,with Naca 4412,blade Naca 4412 with 70% epoxsy resin + 30 % glass fiber,Naca blade 4412 with 70% epoxsy resin + 18% glass fiber + 12% coconut fiber,Naca blade 4712 with 70% epoxsy resin+ 18% glass fiber + 12% coconut fiber and Naca 5513 blade with 70% epoxsy resin+ 18% glass fiber+ 12% coconut fiber.Blade type epoxsy resin+ fiber glass + coir Naca 4412 blade has the highest rotation compared to other blade types that have been in the test.Where the generator rotation at awind speed of 3 m/s generator rotation has been calculated to reach an average of 545.29 rpm,a wind speed of 4 m/s generator rotation is 708.9 rpm,and at a wind speed of 5 m/s the generator rotation is 928.94 rpm, and at wind speed of 6 m/s the generator rotates at 928.94 rpm.
ANALISIS KINERJA RUAS JALAN AKIBAT HAMBATAN SAMPING ( STUDI KASUS : Jl. SOEKARNO HATTA PASAR BAWAH KOTA BUKITTINGGI ) Misbah, Misbah; Hendrizal, Hendrizal
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.45-53

Abstract

Jalan Soekarno Hatta is a secondary collector road with 4 lanes 2 directions divided (4/2 D) as the main road to the trading center of the City of Bukittinggi. Based on the initial observations made, it can be seen that vehicles passing through this road are quite busy, and there are often traffic jams caused by the area being a market area and a shopping center which does not have sufficient parking space so that parking activities use a lot of the road body which causes narrowing. effective road width. The purpose of this research is to find out and analyze the performance of Jalan Soekarno Hatta in terms of traffic volume, capacity and level of service (LOS). While the method used is the 1997 MKJI method by collecting primary data, in the form of road geometric data, traffic volume and side barriers obtained directly at the research location, and secondary data, in the form of population data. Based on the research results, it was obtained that the maximum traffic volume occurred on the main survey, namely on Wednesday for both directions of 518.25 pcu/hour and 522.25 pcu/hour at 11.30 to 12.30 WIB and 11.00 to 12.00 WIB. As for the capacity, the same was obtained at 1148.82 pcu/hour for both directions. Then also the average top speed on the Soekarno Hatta Road section, namely motorbikes with a speed of 20.08 Km/hour in the direction of Janjang 40- Bypass and in the opposite direction from Bypass- Janjang 40 the highest speed is also motorbikes with a speed of 20.20 Km/hour. The side barriers on Jalan Soekarno Hatta are included in the very high side resistance (VH) class category. And in terms of the level of service, Jalan Soekarno Hatta is included in category C where for the classification of the road the flow is fairly smooth, the speed is still controlled, the V/C can still be tolerated. The recommended recommendation is to control the parking area for motorbike riders and provide a special place for city transport cars (angkot) to wait for passengers and install signs that prohibit stopping and signs prohibiting parking.
ANALISIS MUTU PAVING BLOCK DENGAN VARIASI AGREGAT HALUS Nofrianto, Hendri; Hutrio, Hutrio
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.54-62

Abstract

Paving block is a building material made from a mixture of cement, sand and water. Paving blocks are widely used in construction, such as sidewalks, highways, parking lots, parks and so on. Ease of installation, cheap maintenance and fulfilling the aesthetic aspects make paving blocks more popular. Along with the many uses of paving blocks in the community, the quality of paving blocks must be improved. Paving block printing uses a multi block machine. The multi block machine is a mass paving block printing machine with hydraulic power. The mold used in this study was rectangular with a size of 21 cm x 10.5 cm x 8 cm. The variation of the mixture used in this study is 1 cement: 1 filler: 3 mediums, 1 cement: 3 fillers: 1 medium, and 1 cement: 3 fillers. With each mixture having 4 samples and the age of the compressive strength test is 28 days. The average compressive strength of paving blocks at the age of 28 days with a mixture composition of 1:1:3 (1 cement: 1 filler: 3 medium) was 194.73 Kg/cm2. For paving blocks with a mixture composition of 1:3:1 (1 cement: 3 fillers: 1 medium) obtained 190.37 Kg/cm2. Meanwhile, paving blocks with a mixture composition of 1:3 (1 cement: 3 filler) were obtained at 217.76 Kg/cm2. Of the 3 variations of the mixture composition tested, the 1:3 mixture composition had the highest compressive strength with a value of 217.76 Kg/cm2. The results of the examination of porosity or water absorption on average obtained the following results. For the 1:1:3 mixture composition, the average water absorption value is 1.30%. For a 1:3:1 mixture composition, the average water absorption value is 1.21%. As for the composition of the 1:3 mixture, the average water absorption value is 1.27%. Thus, all variations of the paving block mixture have met the water absorption limit for paving blocks with quality B in SNI-03-0691-1996, which is a maximum of 6%.
DESAIN DAN IMPLEMENTASI PROGRAMMABLE LOGIC CONTROLLER ZELIO SOFT2 PADA PROSES OTOMASI INDUSTRI PENGEPAKAN Budiyanto, Maun; Prisda Oetari Sihombing, Krystin
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.63-67

Abstract

The industrial world optimizes time, labor and process efficiency in producing goods. The application of automation technology is expected to increase the amount of production quickly and precisely. One of the technologies used is Smart relay. In this study using the Zelio Soft2 PLC smart relay software which is used to design and simulate the ball packing automation process. There are two programming languages ​​provided by Zelio Soft2, namely ladder diagrams (LD) and function block diagrams (FBD). The ladder diagram is designed to simulate the ongoing process step by step, while the FBD shows the type and block diagram used in the process. The designed system utilizes push buttons (on/off), box sensors, tennis ball sensors and driving motors. The results showed that the program simulation worked as planned.
PENGARUH SUDUT ELEKTRODA 75, 85, 90 PADA LONGITUDINAL ARAH MUNDUR TERHADAP PRESENTASE PENETRASI Hafni, Hafni; Rifqi, Rifqi
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.68-74

Abstract

Shielded Metal Arc Welding (SMAW) is one of the liquid welding processes (fusion welding) that produces a homogeneous fusion of the electrode with the base metal (base metal), which is caused by an electric arc that generates high heat to melt the electrode and base metal (base metal). simultaneously and protected by a shielding gas from the chemical reaction of the electrode flux. The depth of fusion formed is determined by the heat input, the electrode angle and the welding direction. The research was conducted at the Mechanical Engineering Laboratory of the Padang Institute of Technology. The base metal used is low carbon steel ST 37 with a thickness of 10 mm and a length of 100 mm. width 100mm. Welding is carried out on the surface of the base metal in the flat position, the type of connection (weld type) is a surfacing weld with 4 welding lines, each strip having a distance of 20 mm. Weld length 100mm. AWS E 6013 electrode specifications with a diameter of 3.2 mm. SMAW welding machine AC current with a voltage of 30 V. current 85 A. The measured electrode angle between the electrode and the welding line is 750, 850, 900. The backward welding direction where the electrode draws the welding fluid into the welding path and the normal arc height where the distance between the electrode and the base metal is equal to the diameter of the electrode. From the welding results, a penetration presentation will be obtained, namely the ratio of the depth of fusion to the width.  The research results obtained welding speed: 2.48 mm/s for electrode angle 750, 2.49 mm/s for electrode angle 850 and 2.51 mm/s for electrode angle 90. Heat input for electrode angle 750 is 1015.93 J/ mm, the heat input for the electrode angle 850 is 1024.20 J/mm and the heat input for the electrode angle 900 is 1015.93 J/mm. From the comparison of the width with the depth of fusion, it is obtained; The electrode angle 85 has a penetration presentation of 9.85%, which is better in height than the electrode angle 750, which has a penetration presentation of 8.43%, and the electrode angle 900 has a penetration presentation of 8.35%.

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