Journal of Energy, Material, and Instrumentation Technology

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ISSN / EISSN : 2747-2043 / 2774-2091
Total articles ≅ 47
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Ahmad Aziz Arrizal, Sri Wahyu Suciyati, Arif Surtono, Gurum Ahmad Pauzi
Journal of Energy, Material, and Instrumentation Technology, Volume 3, pp 57-62; https://doi.org/10.23960/jemit.v3i2.101

Abstract:
The laboratory access restriction system has been realized using RFID and keypad technology, based on an Arduino microcontroller as a processor. The system has recorded users who entered the room by identifying the RFID tag (transponder) used to open the door from the outside. As for access outside the room, the user only needs to enter the password as identification data on the keypad, and the system would reduce the number of room users and open the door. The output of this system was a solenoid lock which functions as an electronic lock and an LCD to display the status of the RFID reading. The test results showed that the system created can work well. RFID Reader was able to read tags with a maximum distance of 4 cm. The program counter functions well, so the number of users was limited to 15 (50% of the maximum capacity).
Wulan Oktaviani, Sri Wahyu Suciyati, Gurum Ahmad Pauzi, Junaidi Junaidi
Journal of Energy, Material, and Instrumentation Technology, Volume 3, pp 39-43; https://doi.org/10.23960/jemit.v3i2.68

Abstract:
An Arduino-based stepper motor was used to create a nanofiber spinning machine. The hardware for this tool includes an Arduino Mega module, a 4x4 keypad, a TM1637 type seven-segment display, and L298N type stepper motor driver, a 17Hs4401 type stepper motor, a Pushbutton, and an ultrasonic sensor. The software utilized is the Arduino IDE, which is written in C. This tool's operating premise is that the Arduino processes input from the Keypad, and then the Stepper Motor Driver drives the stepper motor, which moves the collection drum up and down. The results of reading the tool will be presented in the seven segments in the form of RPM, altitude, and time. The tool has a height range of 1-10 cm, an RPM range of 10-100 RPM, and a time range of 1 minute to 1 hour. According to the test results, the tool has 99.8 percent accuracy at RPM, 99.92 percent accuracy at the time, and 97.89 percent accuracy at altitude.
Lola Adetia, Sri Wahyu Suciyati, Amir Supriyanto, Gurum Ahmad Pauzi
Journal of Energy, Material, and Instrumentation Technology, Volume 3, pp 63-73; https://doi.org/10.23960/jemit.v3i2.99

Abstract:
In this research, the design of an automatic plant watering device and a real-time soil moisture monitoring system was realized in an internet of things (IoT) based papaya farm. The design of this automatic plant watering device aims to create an automatic plant watering system using the FC-28 sensor and a monitoring system using the Blynk application on papaya fields. In the system, the microcontroller used is an Arduino UNO with outputs, namely a dc pump, 16X2 LCD, and Blynk application. Based on the android interface app, the Blynk app can monitor the soil moisture value in real-time every 1 second. Data collection was done by measuring the moisture value in 3 papaya farms with different crop ages, and the tool will water when the soil moisture value read by the sensor is> 350 or <65%. Based on the study results, the device can run well, as shown by the pump can water when the soil moisture value is> 350 or <65 %, and the pump will stop when the soil moisture value is <350 or> 65%.
Syarifuddin Aprian Hidayatullah, Sri Wahyu Suciyati, Gurum Ahmad Pauzi, Arif Surtono
Journal of Energy, Material, and Instrumentation Technology, Volume 3, pp 44-49; https://doi.org/10.23960/jemit.v3i2.100

Abstract:
In this study, water content measurements were carried out using a physical method using a capacitive sensor. Measurement with these two methods aims to get the most efficient method for tapioca flour's water content value. The samples used were six samples of tapioca flour from the way good factory. Each sample was measured using a thermogravimetric method and a capacitive sensor measuring instrument three times per sample. The measurement results produce a polynomial graph with a coefficient of determination of 0.9702. The graph shows that the higher the water content, the higher the value detected by the capacitive sensor. The thermogravimetric method used as a reference takes 6 hours to get results, and the physical method takes less than one minute. To compare measurements, measurements were made using the thermogravimetric method to measure the percentage of water content in tapioca flour. This study indicates that the physical measurement method with a capacitive sensor instrument requires a shorter time than the thermogravimetric method. And the higher the water content, the shorter the storage time.
Gurum Ahmad Pauzi, Muhammad Ridwan, Amir Supriyanto, Sri Wahyu Suciyati
Journal of Energy, Material, and Instrumentation Technology, Volume 3, pp 50-56; https://doi.org/10.23960/jemit.v3i2.93

Abstract:
Electricity needs in mountainous areas have not been optimal, so there need to be alternative power plants to meet the electricity supply in the mountainous area. For this reason, this study made an alternative power plant tool with the title Nano-hydro Generator Design Easy to Carry For Lighting In Mountainous Areas. The creation of this tool has several stages, including the first stage of making graphic design through SketchUp applications, then the second stage of the tool assembly in the form of mechanical design and civilian build, then the third stage of testing tools through water media, and the last stage of data retrieval to see if this tool works optimally. Based on the results of trials and data collection obtained, the average rotation speed of the turbine of 48.6 rpm, the rotation speed of the generator of 194.3 rpm, and a voltage of 6.3 volts.
Mey Puji Astuti, Yanti Yulianti, Posman Manurung, Simon Sembiring
Journal of Energy, Material, and Instrumentation Technology, Volume 3; https://doi.org/10.23960/jemit.v3i1.85

Abstract:
The research about the calculation of burn-up model of the hexagonal assembly in SCWR reactor using thorium as fuel materials has been done. This research uses thorium-232 and uranium-233 as fuel materials. Calculations were performed using the ASMBURN code in the SRAC program, by determining fuel enrichment, cell radius, analyzing atomic density after burn up, increasing burn up level, and change of linear heat. The calculation results obtained show the value of efficient fuel enrichment at 4% enrichment, with 0.3902 cm of fuel cell radius, 0.4508 cm of cladding, and 0.5586 cm of moderator. The atomic density of Th232 decreased for each burn-up period meanwhile, the atomic density of U233, U235, and Pu239 increased. The keff value will decrease along with the addition of burn-up and greater change of linear heat.
Ulfa Nurini, Ediman Ginting Suka, Roniyus Marjunus
Journal of Energy, Material, and Instrumentation Technology, Volume 3; https://doi.org/10.23960/jemit.v3i1.89

Abstract:
This research aims to determine the effectiveness of ketapang leaf extract (Terminalia catappa L.) as inhibitor on AISI steel in corrosive medium NaCl 3%. Specifically, the purpose of this research is to know the effect of the addition of 0%, 2%, 4%, 6%, 8%, dan 10% inhibitor concentration of ketapang leaf extract and 6 daysto the corrosion rate. To find out the corrosion rate resulted by weight reduction method with an inhibitor efficiency value of 69,9%. The x-ray diffraction (XRD) results show that the phase formed is pure Fe phase. The results of scanning electron microscopy (SEM) show the presence of lumps on steel surfaces of various sizes which are the product of corrosion. This is reinforced by the results of energy dispersive spectroscopy (EDS) which shows that the increasing number of lumps on the steel surface leaves fewer Fe elements.
Riski Wulan Sari, Ediman Ginting Suka, Pulung Karo Karo
Journal of Energy, Material, and Instrumentation Technology, Volume 3; https://doi.org/10.23960/jemit.v3i1.86

Abstract:
This research aims to determine the effectiveness of sapodilla leaf extract (Manilkara zapota L) as inhibitor on AISI steel in corrosive medium NaCl 3 %. Specifically, the purpose of this research is to know the effect of the addition of 0%, 2% and 4% inhibitor concentration of sapodilla leaf extract and 3 days, 6 days and 9 days to the corrosion rate. To find out the corrosion rate resulted by weight reduction method with an inhibitor efficiency value of 59,2%. The x-ray diffraction (XRD) results show that the phase formed is pure Fe phase. The results of scanning electron microscopy (SEM) show the presence of lumps on steel surfaces of various sizes which are the product of corrosion. This is reinforced by the results of energy dispersive spectroscopy (EDS) which shows that the increasing number of lumps on the steel surface leaves fewer Fe elements.
Sharen Herya Reafinola, Yanti Yulianti, Syafriadi Syafriadi
Journal of Energy, Material, and Instrumentation Technology, Volume 3; https://doi.org/10.23960/jemit.v3i1.84

Abstract:
Calculation of the rate of fission and neutron capture reactions with a filter and without a filter has been carried out using a hexagonal geometry model using the REACT code SRAC program. This research uses uranium-235 and uranium-238 as fuel. Calculation results The rate of fission reaction in material 1 and material 3 using a filter and without a filter increases with the increase in the percentage value of U235 enrichment. The highest value for the neutron fission reaction rate of material 1 without a filter is found in the second mesh with 1% enrichment, which is 3.0747x10-2 reactions/cm3s. Meanwhile, the rate of neutron capture reaction using a filter increases with the increase in the percentage of U235 with 1% enrichment of the 5th mesh, with a value of 9.8627 x10-2 reactions/cm3s. Then the unfiltered neutron fission reaction rate on material 3 increased along with the increasing percentage in the 5th 1% enrichment mesh, which was 9.4778 x10-2 reactions/cm3s. This is due to the increasing percentage of U235 enrichment in the fuel pin. While the rate of capture reaction using a filter on material 1 with a percentage of 1% of the second mesh has the highest value compared to the filter, which is 9.8181 x10-2 reactions/cm3s.
Gurum Ahmad Pauzi, Nilla Anggi Pratiwi, Arif Surtono, Sri Wahyu Suciyati
Journal of Energy, Material, and Instrumentation Technology, Volume 3; https://doi.org/10.23960/jemit.v3i1.88

Abstract:
The research was conducted to analyze the effect of variations in pH of acid zinc solution in two compartment voltaic cells with Cu(Ag)-Zn electrodes on the value of electrical characteristics and the resulting corrosion rate. The Cu(Ag)-Zn pair is used to generate voltage and current in the cell with seawater electrolyte and zinc acid solution. The two compartments are lined with salt bridge made from mixture of Al2O3 (aluminum oxide), NaCl (seawater) 1 mole concentration dissolved in “tiga roda” white cement. The voltaic cell consisted of 5 cells arranged in series circuit, for each cell at the cathode (Cu(Ag)) containing ± 250 ml seawater and at the anode (Zn) containing ± 200 ml cid zinc solution which was varied with a pH of 4.5 and 6. The voltaic cell was measured with multitester every 1 hour for 3 days. Based on the research that has been done, it can be concluded that by using an acid zinc electrolyte solution which has a lower pH value, it will increase the value of the electrical characteristics and increase the corrosion rate produced by voltaic cell.
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