cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota cimahi,
Jawa barat
INDONESIA
Jurnal Teknik
Published by Universitas Jenderal Achmad Yani
ISSN : 14128810     EISSN : 25802615     DOI : -
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal Teknik merupakan jurnal peer-reviewed dalam Bahasa Indonesia di bidang keteknikan yang terbit 2 kali dalam setahun. Terbit di bulan Mei dan November.
Arjuna Subject : -
Articles 466 Documents
 39   40   41   42   43 
Diagnosis Kondisi Minyak Tranformator Menggunakan Teknik Dissolved Gas Analysis Fauzia Haz; Muhammad Rizki Akbar; Giri Angga Setia
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 1 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

At the Cikalong hydropower plant there are 3 power transformers with a voltage rating of 6.3/77 kV, because of their long life, it is necessary to analyze the condition of the transformer oil. One way to determine the level of fault gas contained in transformer oil is the DGA (Dissolved Gas Analysis) test. DGA will extract the gas to find out indications of disturbance based on the interpretation of the dissolved gases data, namely the Total Dissolved Combustible Gas (TDCG), Key Gas, Roger's Ratio, Doernenberg's Ratio and Duval's Triangle methods. This method is in order to determine the condition of the transformer oil is normal or not, measure the breakdown voltage value and calculate the correlation value between operating hours and the amount of power production. The results of the DGA analysis on transformer units 1, 2, and 3 of the Cikalong hydropower sub-unit show the TDCG value in condition 1, which includes all transformers in good condition. The value of the correlation coefficient between hours of operation and the number of kWh production with TDCG is 0.267 and 0.297, respectively, which indicates the relationship between these variables is a weak relationship (standard value is close to 1).
Sistem Pengaturan Pendingin Ruangan dengan Menggunakan Thermoelectric dan Blower Motor Direct Current Zul Fakhri; Ahmad Daelami; Bayudin; Atik Charisma
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 1 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The increase in temperature affects the comfort of the dwelling, especially the bedroom area, so it requires a room conditioning tool so that the temperature remains stable and comfortable. Air conditioning tools that are commonly used by the public are now using less environmentally friendly substances because they can damage the ozone layer and are expensive to operate and maintain. Cooling and air conditioning technology is becoming very important at this time. Various technologies are already on the market to meet people's needs. This research describes the design and realization of an air conditioning control system using a thermoelectric and direct current blower motor. This system consists of a Peltier, a DS18B20 temperature sensor and a DC blower motor using PID control. In the test the blower temperature without peltier is measured with an average temperature of 25,650C while with peltier it is 22,270C. The most optimal PID parameters using the trial and error method are Kp = 20, Ki = 2, and Kd = 20 with a set point of 170C.
Kajian Optimasi Kapasitas Danau Tempe untuk Mengurangi Banjir di Kabupaten Sidrap, Kabupaten Soppeng, dan Kabupaten Wajo - Provinsi Sulawesi Selatan Agustin Purwanti; Roni Farfian; Chairunnisa; Rifaldi Aji Sarifudin; Aditya Wisnu M.P
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 1 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tempe Lake is a floodplain lake in South Sulawesi Province. The capacity of Tempe Lake is affected by the inflow into the lake. The high intensity of rain causes the lake water to overflow and flood the area around the lake. To reduce the flood inundation, an optimization study was carried out on the capacity of Tempe Lake. Optimization is carried out by adjusting the optimal height of the gate opening on the Tempe Moveable Weir using a hydrological model. The curve number (CN) of rivers flowing into the lake is used, which is a function of 2 land cover scenarios, namely the existing condition and the RTRW plan for South Sulawesi Province. Based on hydrological modeling, it was found that the inflow of Tempe Lake (Q25) for the existing condition scenario was 11,825.83 m3/s, and for the RTRW plan of South Sulawesi Province, scenario was 11,606.62 m3/s. The 2D hydrodynamic modeling simulates various heights of gate openings on the Tempe Moveable Weir with respect to the flood inundation area. The optimal capacity of Tempe Lake to reduce flooding is achieved by maintaining the water level at +7.53 m above sea level with a gate opening height of 4 m.
Simulasi Indoor Building Coverage (IBC) Pada Teknologi Long Term Evolution (LTE) Di Gedung Hindarto Joesman Fakultas Kedokteran UNJANI Gusvira Lestari; Hajiar Yuliana; Sofyan Basuki
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 1 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Hindarto Joesman Building, Faculty of Medicine is one of the lecture buildings at Jenderal Achmad Yani University which consists of 4 floors and has a building area of ??4125.6 m². The building has a low signal quality for the indoor LTE network. This is due to the construction and materials in the building which can weaken the quality of the LTE signal received. These conditions make the Faculty of Medicine UNJANI building require a separate indoor network installation to cover user needs inside the building. Indoor Building Coverage planning for this building can help to improve signal level and value of Reference Signal Received Power (RSRP) and Signal to Interference Noise Ratio (SINR). The process of calculating coverage planning in indoor network planning uses the Cost propagation model 231 Multi Wall Model and is simulated in the Radiowave Propagation Simulator 5.4 software. Based on the simulation results, the average RSRP value is -20.59 dBm and SINR is 34.30 dB. The average value can cover the signal quality in the building area of ??89.12% for RSRP and 97.45% for SINR. The results of the planning and simulation of the Indoor Building network have met the standard RF parameters for operators.
Studi Awal Pembuatan Polymer Matrix Composite (PMC) Epoksi yang Didoping Nanopartikel ZnO sebagai Material Antibakteri Manty Aldilani Ikaningsih; Ghazi Alwan Rafi; Djoko Hadi Prajitno
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 1 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Bacteria that stick to and accumulate on the toothbrush can cause infection or disease in the oral cavity. Therefore, many antibacterial materials are being researched to inhibit bacterial growth, even kill bacteria. In this preliminary research, polymer matrix composite with an epoxy matrix doped with ZnO nanoparticles was carried out as an antibacterial material on toothbrushes. The epoxy matrix, hardener, and ZnO nanoparticles are mixed until they are homogeneous and then printed like a toothbrush. The ratio of resin and hardener varied 1R:1H and 2R:1H with variations of ZnO are 0%; 0.6% and 0.9%. XRD, hardness, FTIR, and bending tests have been carried out to determine the characteristics of PMC. The hardness of PMC with ZnO 0%; 0.6%; 0.9% respectively are 55.6; 58.5; 60.5 for 1R:1H and 73.3; 74.3; 74.8 for 2R:1H. Testing for antibacterial properties using a spectrophotometer with the optical density method was carried out to determine the antibacterial. The highest antibacterial properties were PMC with ZnO 0.9% 2R:1H. Based on data, it was found that the hardness was getting higher along with the increasing ZnO nanoparticles and the ratio of resin. For testing antibacterial properties, increasing ZnO nanoparticles resulted in an increase in the antibacterial properties.
Pengaruh Kontaminan Air terhadap Tegangan Tembus Isolasi Cair Minyak Mineral dan Nabati sebagai Alternatif Isolasi Minyak Transformator Christiono; Miftahul Fikri; Dhami Johar Damiri; Muh. Rezha Safariansyah; Syahty Pratiwi; M. Reza Hidayat
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 1 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

One of the effects of reduced transformer life is the frequent occurrence of disturbances, disturbances that can occur in the form of contamination of insulating oil which has an impact on transformer damage. To reduce the damage, a research was carried out, in this study it was carried out to see the effect of water contaminants contained in the insulation of transformer oil using the Breakdown Voltage method by looking at the value of the translucent voltage. There are 2 types of insulating oil used during testing, mineral, and vegetable oil, while the test equipment used is the BAUR Oil Tester DPA, with the standard IEC 60156:2018 test equipment. Which is adapted to the standard specification SPLN 49-1:1982 which states that new oil has a breakdown voltage value of 30 kV/2.5 mm. The results of the test show that the breakdown voltage value is influenced by water contaminants where the more contaminants contained, the faster the breakdown voltage value will decrease. This research can be an indication to maintain the transformer resistance.
Dehidrasi Etanol Menggunakan Zeolit Teraktivasi Irradiasi Lampu Sinar Ultraviolet (UV Light) pada Kolom Fixed Bed M. Praditia Ansor; Simparmin Br. Ginting; Muhammad Haviz; Darmansyah
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 1 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

To obtain ethanol purity >99.5%, an adsorption method using Lampung Natural Zeolite (ZAL) is needed. In order to be used as a zeolite adsorbent, activation must be carried out using UV light lamp irradiation germicidal lamp 254 nm, blacklight lamp 360 nm and insect lamp 546 nm. The results of the BET characteristic test showed that the surface area of ??the non-treated zeolite was 41,331 m2/g, the germicidal lamp was 41,158 m2/g, the black light lamp was 40,399 m2/g and the insect lamp was 38,796 m2/g. The largest total pore volume was obtained from UV germicidal lamp activated zeolite 0.0690 cc/gram and the average pore size was found in insect lamp activated zeolite 35.57. After the activation of the zeolite, pellets were formed using a binder from wheat flour with a composition of 35% by weight of zeolite, then the zeolite was calcined to remove the binder that was still attached and opened the pores that were closed by the binder. The results obtained were dehydrated ethanol to increase purity using zeolite activated by UV germicidal lamp 98.69% v/v for 45 minutes, blacklight and insect lamp 98.69% v/v for 55 minutes.
Penilaian Simpangan Pergerakan Interpolasi Angular pada Mesin Frais CNC Menggunakan Double Ballbar Gagan Tabah; Brilliant Dwinata
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 1 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Computer Numerical Control machine is capable of making circular paths by moving two axes simultaneously in one of the XY, XZ, or YZ planes. If the coordination of the two axes is not good, it will cause circle interpolation errors that affect the roundness error in the machining workpiece. The error of the movement of the two axes can be measured using a double ballbar, to find out the error of the movement, it is varied with three feeding speeds. The research method used is the method of comparative analysis of double ballbar measurement results. some information from the measurement results is the error value of Circularity, Backlash, Squareness, Straightness, and Center offset. Feeding speed is very influential on geometric errors, the greater the value of feeding speed, the greater the error value. In addition to feeding speed, there are many factors that affect the results of double ballbar measurements, including ballscrew, clearance, servo mismatch, test repetition, etc.
Rancang Bangun Sistem Presensi Pegawai Menggunakan Pintu Otomatis Berbasis NFC (Near Field Communication) Kusnandar Kusnandar; Ni Ketut Hariyawati Dharmi; Andika Dwi Naviandi; Yusuf Nugraha
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 2 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol21no2.443

Abstract

The attendance system is considered to be able to assist an agency in providing information about a person's attendance schedule. The attendance system can also be used as an effective tool for implementing discipline in an agency because, in this attendance system, we can see the difference between people's discipline through the timeliness of attendance that has been determined at each of these agencies. In designing this system the method used is NFC (Near Field Communication) where this system can be used to help record someone's attendance schedule. The hardware used is a door lock solenoid, and personal computer devices, while the software used is Wemos D1 Mini. For recording the database used is MySql. The results of presence system using NFC using the Key Door Lock method have a very high level of accuracy for reading an identity card. It can be seen from the data that has been collected that the accuracy of reading an identity card by an NFC reader shows that there is no error or error. The results of response time check test on the NFC reader reading can be proven by formula, where average time value of response time check test is 0.67 minutes.
Analisis Ekonomi Awal Proses Produksi Biobutanol dari Tandan Kosong Sawit dengan Proses Hidrolisis dan Fermentasi Secara Terpisah Reno Susanto; Tjokorde Walmiki Samadhi; Winny Wulandari; Said Zul Amraini
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 2 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol21no2.447

Abstract

The limitation of petroleum reserves and environmental issues have led countries worldwide to shift towards producing and utilizing biofuels as an alternative solution to replace fossil fuels. One of the biofuels that can be used is biobutanol, which can be produced from residual waste containing lignocellulose. An empty fruit bunch (EFB) from oil palm is a residual waste used as raw material for biobutanol production. The method that can be used in biobutanol production is the Separated Hydrolysis and Fermentation (SHF) process, which allows the cellulose hydrolysis process to be pre-treated with acid at lower temperature but for longer time or at higher temperature for shorter time. The product from Clostridium acetobutylicum using hydrolysate from cellulose hydrolysis is higher than that from acid hydrolysis. The cellulase enzyme hydrolysis process can be separated from the fermentation process according to their optimum conditions. From the initial economic analysis calculation with production basis of 10,000 tons per year, total gross profit margin of IDR 39,459/kg was obtained, indicating that biobutanol production from EFB biomass is economically feasible and profitable. Further study is needed to conduct a techno-economic analysis of the biobutanol production process using EFB as raw material.

Page 41 of 47 | Total Record : 466

 39   40   41   42   43 

Filter by Year

2002 2025


Reset
Filter By Issues
All Issue Vol 24 No 1 (2025): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 23 No 2 (2024): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 23 No 1 (2024): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 1 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 2 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 1 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 20 No 2 (2021): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 20 No 1 (2021): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 19 No 2 (2020): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 19 No 1 (2020): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 18 No 2 (2019): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 18 No 1 (2019): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 18 No 1 (2019): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 17 No 2 (2018): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 17 No 2 (2018): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 17 No 1 (2018): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 17 No 1 (2018): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 16 No 2 (2017): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 16 No 2 (2017): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 11 No 2 (2012): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 11 No 1 (2012): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 10 No 2 (2011): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 10 No 1 (2011): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 9 No 2 (2010): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 9 No 1 (2010): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 8 No 2 (2009): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 8 No 1 (2009): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 7 No 2 (2008): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 7 No 1 (2008): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 6 No 2 (2007): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 6 No 1 (2007): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 5 No 2 (2006): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 5 No 1 (2006): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 4 No 1 (2005): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 3 No 2 (2004): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 3 No 1 (2004): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 2 No 2 (2003): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 2 No 1 (2003): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 1 No 2 (2002): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 1 No 1 (2002): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik More Issue