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Jurnal Teknologi Terapan
Published by Politeknik Negeri Indramayu
ISSN : 24773506     EISSN : 25491938     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Mechanical Engineering
JTT memuat naskah hasil-hasil penelitian di bidang teknologi terapan.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 292 Documents
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RANCANG BANGUN DC TO DC BUCK CONVERTER DENGAN SISTEM KENDALI PI PADA NI ELVIS II DAN ANTARMUKA BERBASIS LABVIEW Afaf Fadhil Rifai; Wahyudi Purnomo; Revirda Eka Putri
Jurnal Teknologi Terapan Vol 7, No 2 (2021): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v7i2.333

Abstract

Understanding basic concepts is an important thing in electronics, especially regarding the teaching aid of power electronic components. Given the need for students to study the model of electronic schematic with feedback controller, a media that can support this is needed. One of the developments in component technology and electronic circuits that can be studied is the DC voltage conversion, namely the DC to DC buck converter. This teaching aid model uses software, namely LabVIEW and the control and data acquisition hardware, namely NI ELVIS II. DC to DC buck converter schematic that can reduce the variable output voltage with a value range of 6 - 18VDC from an input voltage of 24VDC. PI feedback controller testing in the system experiment resulted in a difference of 0.1567% error using the PI controller parameter of Kp = 3.00 and Ti = 0.01. The test results with the PI controller show the expected response and can be applied to the buck converter circuit system. Testing the interface of the buck type DC to DC converter system is considered feasible as a learning aid with an overall interface quality value of 83.8% with student responds.
STUDI EKSPERIMEN PANEL SURYA DENGAN KOLEKTOR PEMANAS UDARA Mega Lazuardi Umar; Prabuditya Bhisma Wisnu Wardana; Asmar Finali; Agung Fauzi Hanafi; Rizqi Ilmal Yaqin
Jurnal Teknologi Terapan Vol 7, No 2 (2021): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v7i2.335

Abstract

Solar panel is popular renewable energy technology because it is environmentally friendly, zero emissions, and environmentally clean.  However, the energy conversion value from solar radiation to electricity is quiet small, more than 70% of solar radiation is discharged into heat energy.  Therefore, a heat collector is needed to take advantage of the heat dissipation from solar panel. In this study, an air heat collector is placed at the bottom of the panel to indicating the potential energy, electrical efficiency and heat efficiency. It was found that solar panels with air heat collectors were able to increase the electrical efficiency of solar panels by 0.70%. The daily primary total energy efficiency value of solar panels with a heat collector is 17.47% higher than a solar panel without a collector. In the future, the results of this research can be a reference for academics and industry to develop their renewable energy potential.
PENGARUH PERLAKUAN ANNEALING DAN SHOOT PEENING TERHADAP KEKERASAN DAN STRUKTUR MIKRO PADA BAJA KARBON JIS S45C Bambang Hari Priyambodo; Rizqi Ilmal Yaqin; Margono Margono; Kacuk Cikal Nugroho
Jurnal Teknologi Terapan Vol 7, No 2 (2021): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v7i2.347

Abstract

The industrial world is currently growing rapidly. The need for JIS S45C as a structural steel is increasing which is used to manufacture machine components. Efforts to improve the mechanical properties of steel can use heat treatment and surface treatment. One of the surface treatments that is often used in the industrial world is shot peening. This study aims to determine the effect of annealing and shot peening treatment on S45C steel. The effect of treatment is indicated by changes in the results of both transverse and surface hardness tests and the microstructure of the treatment results. The result is a change in the value of hardness and microstructure changes in JIS S45C from the effect of annealing and shot peening treatments. The highest hardness in the annealing heat treatment and the 15 minute shot peening treatment was 252.08 kgf/mm2. The shot peening treatment causes the grains to become finer from the surface to the subsurface depending on the distance from the surface to the surface depth. These changes cause the surface and subsurface of JIS S45C carbon steel to increase in mechanical properties.
RANCANG BANGUN SUPERVISI SISTEM PENCEGAH DAN PEMADAM KEBAKARAN BERBASIS IOT Sandy Bhawana Mulia; Nur Wisma Nugraha; Ilham Rafif Mochamad
Jurnal Teknologi Terapan Vol 7, No 2 (2021): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v7i2.339

Abstract

Fire is a disaster that often occurs but can be prevented. Based on data from the Bandung City Central Bureau of Statistics (BPS), in 2018 there were 198 fire incidents (16.5 events / month), and in a periode 2012 - 2017 fires caused by LPG gas had the second largest percentage at 17%. Therefore a fire extinguishing system that can detect and prevent it quickly and can be monitored remotely in real time will help minimize losses. This system design uses an LM35 sensor which can detect temperature, the KY-026 sensor can detect the presence of hotspots in any room, and the MQ-6 sensor can detect the levels of LPG gas in the room. Moreover, this system design is also able to drive 2 emergency doors, pumps and exhaust fans according to the specified algorithm. The system interface can provide actuator information on the prototype as well as the location of the fire plan with a delay of each data change of 6.67 seconds. And the system is able to provide an indicator of the evacuation route during a fire.
Cover Vol 7 no 2 JTT Polindra
Jurnal Teknologi Terapan Vol 7, No 2 (2021): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v7i2.374

Abstract

Cover JTT Vol 7 no 2
SIMULASI NUMERIK DISTRIBUSI POLUSI UDARA DALAM RUANGAN Bowo Yuli Prasetyo; Arda Rahardja Lukitobudi; Ade Suryatman Margana
Jurnal Teknologi Terapan Vol 8, No 1 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i1.377

Abstract

The kitchen is a vital area that provides energy sources through food processing for residences. However, the cooking process can also produce pollutants that are harmful to the body. This study aims to investigate the concentration and distribution of contaminants (CO and CO2) generated from the kitchen to all rooms in the house. In addition, Air temperature and velocity are investigated to observe their relationship with the distribution of pollutants. The investigation procedure utilizes a numerical simulation of a dwelling with two different ventilation cases. The simulation results show no significant difference in air velocity between the two cases. While the addition of natural ventilation in the kitchen area can reduce CO and CO2 concentrations throughout the room by 25.8% and 24.9%, respectively. On the other hand, the indoor air temperature can also be reduced by 4.9% with the same treatment. In conclusion, the addition of a window in the kitchen area has a significant impact on reducing temperature and pollutant concentrations all over the room.
SISTEM PENDUKUNG KEPUTUSAN PEMBERIAN PINJAMAN MENGGUNAKAN METODE MULTIATTRIBUTE APPROXIMATION BORDER AREA COMPARISON (MABAC) Iklima Ermis Ismail; Aisyah Dewi Hasanah
Jurnal Teknologi Terapan Vol 8, No 1 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i1.322

Abstract

The process of determining loan provision at Teacher Cooperative of SMAN 1 Jasinga is still using a manual system. Treasurer of Cooperative conduct the determining lending based on feasibility assessment of Cooperative members to receive loans without calculate the percentage of the borrower's eligibility value. This study aims to produce a Decision Support System (DSS) in assessing and ranking loan applications using the Multi-Attributive Border Approximation Area Comparison (MABAC) method in the Teacher Cooperative of SMAN 1 Jasinga. The MABAC method has 6 process steps, namely ordering the initial decision matrix, normalizing the initial matrix elements, calculating the weighted matrix elements, determining the area estimate matrix, calculating the alternative distance matrix elements from the border area and alternative ranking. The results of this study is a decision support system based on four predetermined criteria namely the purpose of loan, the amount of loan, the amount of saving and the amount of salary. This Decision Support System can accelerate the calculation process in determining loan provision by the Treasurer of Teacher Cooperative so that it becomes more efficient and right on target. Testing is done using 40 loan applications data. Based on the accuracy results of the comparison between the real data with DSS calculation data is obtained value 87.5%.
KARAKTERISTIK PROSES GASIFIKASI TEMPURUNG KELAPA MENGGUNAKAN UPDRAFT GASIFIER TIPE HISAP Icha Syahrotul Anam; Bambang Purwantana; Radi Radi
Jurnal Teknologi Terapan Vol 8, No 1 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i1.380

Abstract

Energy demand continues to increase in line with the increasing population which results in high energy consumption. Utilization of biomass waste such as coconut shells as an alternative energy source is very beneficial, because it can reduce dependence on fuel oil. One of the technologies that can be used to produce alternative energy is biomass gasification. The purpose of this study was to determine the character of the biomass gasification process using a suction type updraft gasifier with varying the size of the material and air flow rate. The biomass used was coconut shell with a moisture content of 8-10%. The research method used by varying the size of the material and the air flow rate. The weight of the material tested was 5 kg with additional 200 grams of charcoal. The results showed that coconut shell gasification using updraft gasifier with suction type was able to produce combustible gas with the characteristics of the gasification process including the effective gasification time of 15-21 minutes, gasification process temperature > 700° C, flame temperature 400-800° C, mass of charcoal and ash 138-223 grams, tar mass 38-95gram and effectiveness 25-94%. The flames characteristic at an air flow rate of 0.17m/s tend to be solid, at an air flow rate of 0.23 m/s the flames are high, and 0.3 m/s the flames are mostly filled with smoke. The highest effectiveness is achieved at a variation of 0.17 m/s, which indicates that with the increasing rate of incoming air, the effectiveness of gasification will be lower.
PENGUJIAN TURBIN AIR PUSARAN GRAVITASI DENGAN VARIASI OVERLAP RATIO ROTOR DAN PENGGUNAAN ENDPLATE Muhammad Luthfi; Meri Rahmi; Rachmatullah Rachmatullah
Jurnal Teknologi Terapan Vol 8, No 1 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i1.389

Abstract

The gravitational water vortex turbine is a turbine system that can convert the energy from artificial water vortex by means of the drained water through the basin outlet to the kinetic energy of rotor rotation Many researches were conducted to improve the efficiency of this turbine by changing the shape of basin, or the rotor. Meanwhile, the Savonius rotor has good starting rotation and ease of fabrication, but low efficiency. One way to increase the efficiency of this rotor is to apply the gap between the blades which is called Overlap Ratio (OR). In this research, the gravitational water vortex turbine with the conical-shape basin was combined with the various-OR Savonius rotors with area proportion of 26,88% and without endplate and the effect was observed to the efficiency of turbine. This research aims to study the effect of various OR values and use of endplate of Savonius rotor to the efficiency of Gravitational Water Vortex Turbine System. The volume flowrate of channel was maintained constant at 0,005 m3/s. The result showed that for all rotors, the greater efficiency occurred in the low rotational speed. Moreover, the rotor with OR of 0,15 had greater mechanical efficiency which was around 22,78% for the rotor with endplate 26,88% and 27,18% for the rotor without endplate than rotor with OR of 0. Meanwhile, rotor without endplate had higher maximum mechanical efficiency for all OR variation than that with endplate 26,88%.
RANCANG BANGUN SISTEM BRINE COOLING UNTUK PENYIMPANAN UDANG 5 KG MENGGUNAKAN SECONDARY REFRIGERANT JENIS ETHYLENE GLYCOL Sunanto sunanto
Jurnal Teknologi Terapan Vol 8, No 1 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i1.280

Abstract

Tujuan dari penelitian ini untuk mengetahui perbandingan nilai kinerja dari mesin brine cooling dengan media refrrigeran sekunder menggunakan 100% ethylene glycol. Serta mengetahui kinerja mesin pendingin COP dengan metode sistem konvensional yang ditambahkan refrigeran sekunder untuk mendinginkan produk yang ada pada dalam kabin. Untuk mencapai tujuan tersebut peneliti melakukan perhitungan beban pendinginan pada sistem brine cooling. Beban pendinginan yang dihasilkan pada mesin brine cooling yaitu 0,85 kJ/s, temperatur ethylene glycol yang dicapai dalam 2 jam yaitu -16,5°C dan temperatur produk yang dicapai dalam 2 jam -4°C, COPactual yang didapat dari sistem brine cooling ini ialah 3,14 dan efisiensi 72 %, daya listrik 29,2 Watt. Dan daya listrik perbulan Rp 26.317,86

Page 21 of 30 | Total Record : 292

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