JEEE-U (Journal of Electrical and Electronic Engineering-UMSIDA)
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122 research outputs found
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Plastic Optical Fiber as Water-Level Sensor: Serat Optik Plastik sebagai Sensor Level Air
Full text linkThis research presents a low-cost sensor for measuring liquid levels using plastic optical fibers (POF). The sensor reduces the scattering-based optical losses in the fiber, which increase linearly with the liquid height. A U-bent fiber probe and photodetector are used to detect the change in optical intensity. The U-bent probe serves as a test probe for measuring the liquid level. The voltage response difference of the photodetector provides liquid level measurement. This study demonstrates the sensor's responsiveness to liquid level fluctuations above 55 cm at varying temperatures. Sensitivity levels of 1.4 and 3.3 mV/mm were achieved for water level fluctuations below and above 45 cm, respectively. Furthermore, the sensor demonstrated consistently stable responsiveness over multiple cycles
Prototype Monitoring and Controlling of Wastewater Treatment Plant (WWTP) on IoT-Free Output Channels : Prototype Monitoring dan Controlling Instalasi Pengolahan Air Limbah (IPAL) pada Saluran Output Berbasis IoT
Full text linkThe largest water pollution occurs due to the disposal of waste from the industrial sector, while some of it comes from the household sector. In the labor-intensive industrial sector and the household sector, domestic liquid waste is generated. The high level of liquid waste pollution can be overcome by using a wastewater treatment plant (WWTP). Wastewater parameters according to research that has been done, namely pH, Turbidity, and Ammonia are very important parameters and the main priority for the quality of wastewater discharged into the environment. In this study, a prototype monitoring and controlling WWTP on the output channel was designed by measuring wastewater parameters and an Internet of Things (IoT) based pump output control system. This prototype is programmed with 2 mode options, namely auto mode where the controlling system works based on program commands with target limits, namely pH 6 – 9, Turbidity < 300 NTU, and Ammonia < 20 PPM, if the wastewater measurement value is on target, the system activates the outgoing pump. for direct disposal to the environment. Meanwhile, if it does not meet the target, the system activates the treatment pump to return the wastewater back to the WWTP. Then the manual mode, which is the controlling system, works by operating the operator directly to activate the outgoing or treatment pump on a smartphone using the Blynk application. In Auto and Manual mode, wastewater parameters can be monitored on a smartphone using the Blynk application. All sensors used have been calibrated with 2 calibrator solutions. The calibration results show an error value of 0.115 for the pH sensor, an error value of 0.075 for the Turbidity sensor, and an error value of 0.115 for the Ammonia sensor.
 
Analysis Of The Effect Of Loading On Parallel Generator Work At PT. Mitrabara Adiperdana Tbk: Analisa Pengaruh Pembebanan Terhadap Kerja Paralel Generator Pada PT. Mitrabara Adiperdana Tbk
Full text linkGenset is a combination of two different devices: the engine as a rotating device and the generator as a generating device. Genset at PT. Mitrabara Adiperdana. Tbk is used as a backup when the electricity source from PLN goes out. Due to fluctuating loads, an ample power supply is needed when the conveyor is operating, so more than one generator is needed to supply electricity according to load demand. To meet the power needs at PT. Mitrabara Adiperdana. Tbk, 2 gensets with a capacity of 500 kVA and 3 gensets with a capacity of 800 kVA were synchronize. Generator synchronization aims to obtain optimal power, good efficiency and efficient specific fuel consumtion (SFC). When 5 generator units were paralleled, the lowest efficiency was 19.2% with an SFC of 0.48 liters/kWh in September with a capacity of 800 kVA, while the highest efficiency was 62.98% with an SFC of 0.15 liters/kWh in July with a capacity of 800 kVA. The calculation result, when given the same loading, obtained the lowest efficiency of 1% with an SFC of 9.3 liters/kWh in August with a capacity of 500 kVA and the highest efficiency of 51.45% with an SFC of 0.18 liters/kWh in August with a capacity og 800 kVA. The calculation result show that the efficiency is affected by the amount of output power, the difference in the initial year of operation, anf the difference in several parameters of the nmaplate. Meanwhile, the generator’s Specific Fuel Consumtion (SFC) is influenced by the output and hours meter
Design the Back-Up Line of Power Supply Automatic Fireplace Building in Angkasapura II Bandung: Perancangan Jalur Back-Up Catu Daya Listrik Gedung Pemadam Kebakaran Secara Otomatis di Angkasapura II Bandung
Full text linkAngkasapura II is a State-Owned Enterprise (BUMN) that serves air traffic travel using airplanes which cannot be separated from the need for electricity. Almost all services use electricity, without exception the PKP-PK Building or the fire fighting building. This is because this building has an integrated fire detector that is connected from every room throughout the Angkasapura II area directly with the PKP-PK Building or the fire department building. The problem is because the PKP-PK power source is still sourced from the TNI AU base and has not been sourced from PT Angkasa Pura II. It is feared that if the main source of PKP-PK electricity is interrupted, there will no longer be a backup power supply in the PKP-PK area. From the results of this study, a backup power supply line for the PKP-PK area was made from Angkasapura II, with this if the main electricity had problems, the area could operate smoothly because it had been backed up by the electricity supply from PLN and the Angkasapura II Genset.
Monitoring and Controlling System of Chopped Tobacco Dryer Using Fuzzy Logic Method: Sistem Monitoring dan Controlling Pengering Tembakau Rajangan Dengan Metode Fuzzy Logic
Full text linkTechnological developments in post-harvest on the tobacco drying system which is a process of evaporation of water using heat energy or hot air flow aims to inhibit the growth of fungi and bacteria. The method of processing tobacco using the hot air flow method in the oven currently uses a temperature setting that is done manually and strict supervision must be carried out so that the results of the tobacco oven are not damaged. An automatic tobacco drying system can be an option so that the drying process can produce quality tobacco. By embedding the Fuzzy Logic Controller (FLC) method in the tobacco drying system, the temperature can be controlled by controlling the PWM which aims to turn the heater on and off. The tobacco drying oven system controls the oven to adjust the temperature according to the setting point of 35° and an error of 0.02% and reduces the moisture content to 25.6% remaining in the tobacc
Cafe Selection Recommendation System in Semarang City Uses Collaborative Filtering Method with Item Based Filtering Algorithm: Sistem Rekomendasi Kafe di Kota Semarang Menggunakan Collaborative Filtering Dengan Algoritma Item Based Filtering
Full text linkThe cafe selection recommendation system in the city of Semarang aims to provide recommendations for users in finding the desired café according to the type of café expected. This recommendation system serves to predict an item that is of interest to the user. Implementation of recommendation system using Collaborative Filtering and Item Based Filtering algorithms. Collaborative filtering is a recommendation system algorithm where recommendations are given based on consideration of data from other users while the Item Based Filtering algorithm to provide recommendations based on similarities between customer tastes and café characteristics
Sales Information System On The Liemo'S Trophy Cup Using Apriori Algorithm: Sistem Informasi Penjualan Piala Liemo'S Trophy Menggunakan Algoritma Apriori
Full text linkThe Liemo'S Trophy trophy shop was pioneered in early 1996 until 2022. Currently, we can see the rapid development of business in the field of trophy sales, with many trophy shops that have been opened. Therefore Liemo'S Trophy trophy shop must take steps forward to achieve high sales strategy by its competitors. The rapid development of information technology and information systems in the era of globalization, makes information can be obtained easily and quickly, one of which is the business field in the era of globalization, there are many information systems that provide convenience and good service for users of information system services, because information systems is the key in the development of an information technology. Like the Liemo's Trophy Cup shop, it sells various kinds of trophies, medals, plaques, and sells spare parts and trophy needs including figures and various other accessories, but this shop still processes data manually so that sellers will find it difficult to manage sales data. Creating a sales information system using a web-based Apriori Algorithm is expected to get a sales strategy and can be widely used in the sales process to increase the marketing of goods widely through online sites
Pitch Angle Design with Tunning Bat Algorithm (BA) on Wind Turbine Using PID Controller: Desain Pitch Angle dengan Tunning Bat Algorithm (BA) pada Wind Turbine Menggunakan PID Controller
Full text linkIncreased national economic growth has an impact on increasing electricity consumption in Indonesia every year. If the supply of electricity is not fulfilled and is not in line with the huge needs of the community, it will become a problem. The state must meet the demands for continuous and quality electrical energy needs. In general, coal is a primary energy source that is used as the basic material for power plants operating in Indonesia, coal is a fossil energy source that cannot be renewed and will someday experience a reduction, therefore alternative energy sources for power generation need to be considered. Alternative energy sources such as solar energy, bio gas energy, water flow energy, wind energy. Wind is a renewable natural resource, using the principle of energy conversion, namely by converting wind energy into electrical energy. Artificial Intelligent (AI)-based intelligent control has developed a lot to improve conventional controls to control so that the output voltage is always rated constant at varying loads. From the trials conducted, the results of the running program showed that the tunning system using the BA method obtained the most optimal and stable torque value of 1.04 - 4.75 Nm A_Peak when compared to the standard PID and PID_ZN methods
Smart Trolley for Surya Janti Supermarkets Slahung District Based on ATMega 328p: Troli Pintar untuk Swalayan Surya Janti Kecamatan Slahung Berbasis ATMega 328p
Full text linkShopping in terms of shopping is an activity of the community that purchases a need either in the market or in the market. According to the Director-General of Domestic Trade, Suhanto, the growth of consumption of retail goods or referred to as FMCG (Fast Moving Customer Goods) from April 2018 to April 2019 in Indonesia grew positively by 1.8% compared to the previous year with details for the minimarket format growing by 12,1%. With the increasing number of buyers in supermarkets, there will be queues at the cashier when scanning goods during payment. In addition, buyers often have difficulty in knowing product descriptions and total spending, so they cannot estimate total spending with the money owned by buyers, as happened at Surya Janti Supermarket, Slahung District. Ponorogo Regency. From this research, the Smart Trolley for Surya Janti Supermarkets, Slahung District Based on ATMega 328p solves problems in supermarkets. This smart trolley is equipped with a barcode scanner as data input, an LCD that will display a description of the goods and the total shopping, and an ATMega328p Microcontroller as the main control of the trolley. This trolley is also equipped with a door that will open by pressing the keypad to minimize fraud during the scanning process and is integrated with a telegram as storage for transaction data that will be checked again by the cashier
Planning and Manufacturing of Four Axis Solar Panels With Reflector Angle Adjustments: Perencanaan dan Pembuatan Panel Surya Four Axist Dengan Pengaturan Sudut Reflektor
Full text linkSolar thermal energy is one type of renewable energy, so this type of energy can be converted into other energy. This study uses a four-axis solar tracker with angle settings on the reflector to get optimal sunlight, scanning to determine the optimal lighting angle, measurement results are stored in real-time in the data logger. This study uses an LDR (Light Dependent Resistor) as a sunlight detector, equipped with several sensors, namely: current, voltage and power sensor (INA219), light sensor (MAX4409), and temperature sensor (DS18B20), and reflector angle as a parameter of solar efficiency panels. . The results showed that a four-axis solar tracker equipped with a reflector was able to increase the output power. The maximum power production produced by solar panels is: At a reflector angle of 300, the maximum power generated by a static panel is 143.43 W while a solar tracker is 175.15 W. At a reflector angle of 450 the maximum power generated by a static panel is 170.01 W and solar tracker 236.36 W. At an angled reflector of 600 the full power generated by a static panel is 87.77 W, and a solar tracker is 123.36 W. This study concludes that a solar tracker panel with an angle setting of 300 is more capable of maximizing power output than a static solar panel