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FAQIH
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Teknik Elektro Fakultas Teknik Universitas Widyagama Malang Jl. Taman Borobudur Indah 03 Malang Jatim Indonesia
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JASEE Journal of Application and Science on Electrical Engineering
Published by UNIVERSITAS WIDYAGAMA MALANG
ISSN : 27213625     EISSN : 2721320X     DOI : https://doi.org/10.31328/jasee.v1i02
Core Subject : Engineering,
Control & Systems Engineering Electrical & Electronics Engineering
Teknik Elektro Fakultas Teknik Universitas Widyagama Malang mempublikasikan JASEE Journal of Application and Science on Electrical Engineering sebagai jurnal open access yang memuat tulisan ilmiah hasil review, penelitian, aplikasi dan pengembangan di bidang Teknik Elektro. Focus and Scope : Sistem pembangkit, transmisi, distribusi dan proteksi tenaga listrik, Transformator, elektronika dan kualitas daya listrik, motor-motor listrik, Sistem kendali, pengukuran dan instrumentasi elektronik, mikrokontroler, sistem tertanam berbasis arduino dan FPGA, instrumentasi medik, Pengolahan sinyal multimedia, jaringan telekomunikasi dan sensor, jaringan komputer, elektronika komunikasi, disain antena komunikasi, radio kognitif, Robotika dan aplikasi kecerdasan buatan.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 5 Documents
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Search results for , issue "Vol. 6 No. 2 (2025): JASEE-September" : 5 Documents clear
Perancangan dan Implementasi Sistem PLTS Off-Grid pada Gerobak Bakso: : Solusi Efisiensi Energi dan Mobilitas Enggri, Enggri Vristanto; Siswanto, Diky; Setiawidayat, Sabar
JASEE Journal of Application and Science on Electrical Engineering Vol. 6 No. 2 (2025): JASEE-September
Publisher : Program Studi Teknik Elektro - Fakultas Teknik - Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jasee.v6i2.01

Abstract

This study investigates the design and implementation of an off-grid solar photovoltaic (PV) system for a meatball cart as a renewable energy solution for small mobile food businesses that still commonly rely on conventional energy sources for lighting and heating. The developed system integrates a 120 Wp monocrystalline PV module, a 12 V 100 Ah LiFePO4 battery, a PWM solar charge controller, a 1000 W inverter, and an automatic soup-heating subsystem based on a DS18B20 temperature sensor, thermocontroller, and solid-state relay. Field testing was conducted on a meatball cart in Pakis District, Malang Regency, for two weeks of operation. The results show that the system was functionally able to operate the supporting loads and maintain soup temperature within 85–95°C through automatic switching control. However, the total daily load of 3810 Wh was still higher than the available daily energy of about 1920 Wh. This finding indicates that the current configuration is feasible as an implementation prototype but has not yet achieved fully autonomous full-load operation. Overall, the study demonstrates the potential of integrating off-grid PV and closed-loop thermal control to reduce dependence on fossil energy and improve the operational flexibility of micro-enterprises.
PENGARUH KEBOCORAN RADIATOR PADA MAIN TRANSFORMER TERHADAP KINERJA OPERASI PEMBANGKITAN LISTRIK: STUDI KASUS PLTA AMPELGADING MALANG Affansyah, Thaariq; Setiawidayat, Sabar; Siswanto, Diky; Mukhsim, Mohammad
JASEE Journal of Application and Science on Electrical Engineering Vol. 6 No. 2 (2025): JASEE-September
Publisher : Program Studi Teknik Elektro - Fakultas Teknik - Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jasee.v6i2.02

Abstract

This study aims to analyze the impact of radiator leakage in the main transformer on the power generation performance at the Ampelgading Hydroelectric Power Plant, Malang. Radiator leakage reduces the volume of insulating oil, leading to increased operating temperatures and degradation of insulation quality. A quantitative descriptive method with a case study approach was employed by analyzing temperature data, Breakdown Voltage (BDV), Dissolved Gas Analysis (DGA), and energy production data before and after the disturbance. The results indicate that radiator leakage caused a significant increase in winding and oil temperatures, along with a decline in insulation oil quality marked by elevated dissolved gas levels. Operationally, the disturbance resulted in a power output reduction of 18.27%. Corrective actions, including cold welding, load reduction, and oil purification, were effective in restoring transformer performance, as evidenced by an average BDV value of 68.1 kV categorized as very good, and improved energy production after maintenance. This study concludes that the reliability of the transformer cooling system, particularly the radiator, plays a crucial role in maintaining operational stability and efficiency in hydroelectric power generation.
Implementasi GPS Tracker pada Sistem Pemesanan Travel berbasis IoT dengan Metode Adaptive Software Development Prakoso, Anton Bondan; Siswanto, Diky; Istiadi
JASEE Journal of Application and Science on Electrical Engineering Vol. 6 No. 2 (2025): JASEE-September
Publisher : Program Studi Teknik Elektro - Fakultas Teknik - Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jasee.v6i2.04

Abstract

High population mobility requires travel services that are fast, transparent, and able to provide reliable vehicle position information. However, many travel service providers still use manual booking and reporting mechanisms, so customer service, data management, and vehicle monitoring are not yet optimal. This study aims to design and implement a web-based travel booking system integrated with real-time vehicle tracking using Internet of Things technology. The system was developed using the Adaptive Software Development method through the stages of speculation, collaboration, and learning. Vehicle position data were acquired using a Global Positioning System NEO6MV2 module connected to a NodeMCU ESP8266 microcontroller, then transmitted to a server through a web-based application programming interface and displayed on the booking dashboard. System testing showed an average data transmission delay of 1.8 seconds, a data delivery success rate of 98%, and coordinate accuracy within ±3–5 meters. These findings indicate that the proposed system can improve booking data management, accelerate vehicle location monitoring, and increase service transparency for users and administrators. In conclusion, the integration of Internet of Things-based tracking and Adaptive Software Development provides an effective approach for developing adaptive, responsive, and integrated telematics applications for travel service operations.
SISTEM MONITORING SUHU KOTAK SMARTPHONE CHARGER TENAGA SURYA MENGGUNAKAN NODEMCU ESP8266 Tolomaking, Yohanes Skifoanus Nogo; Hunaini, Fachrudin; Uhida Subhan, Moh; Siswanto, Diky
JASEE Journal of Application and Science on Electrical Engineering Vol. 6 No. 2 (2025): JASEE-September
Publisher : Program Studi Teknik Elektro - Fakultas Teknik - Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jasee.v6i2.03

Abstract

Growing energy demand and the depletion of fossil fuel resources have increased the need for sustainable alternative energy sources. Solar energy is suitable for tropical regions and can be applied to small-scale charging systems. This study designs and implements a temperature monitoring and control system for a solar-powered mobile phone charging box to maintain internal temperature stability and support battery charging performance. The system uses a NodeMCU ESP8266 microcontroller, DHT22 sensor, cooling fan, lighting load, Wi-Fi communication, and Blynk Internet of Things platform for real-time smartphone monitoring. Temperature and humidity data are collected inside the box and transmitted to Blynk, while the fan is activated automatically when the temperature exceeds the predefined threshold. Test results show that the system detected changes in operating conditions. When the fan was off and the lamp was on, the temperature was 28°C with 68.40% humidity. When the fan was on and the lamp was off, the temperature reached 30°C with 78.50% humidity. Solar panel output varied from 19.9 V, 0.393 A, and 7.834 W in the morning to 16.02 V, 0.16 A, and 2.563 W in the afternoon. These findings indicate that the proposed system can support real-time monitoring and automatic thermal control.
PENGENDALI ALIRAN AIR BERDASARKAN PEMANTAUAN INTENSITAS UV LAMP STERILIZER PADA PRODUKSI AIR MINUM DALAM KEMASAN BERBASIS IoT Krisdiyanto; Istiadi; Muhsim, Mohammad
JASEE Journal of Application and Science on Electrical Engineering Vol. 6 No. 2 (2025): JASEE-September
Publisher : Program Studi Teknik Elektro - Fakultas Teknik - Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jasee.v6i2.05

Abstract

Bottled drinking water production requires reliable sterilization to ensure microbiological safety after groundwater filtration. Ultraviolet lamps are commonly used as sterilizers; however, decreased light intensity can reduce sterilization effectiveness and affect product quality. This study aims to design and evaluate an Internet of Things-based online monitoring system integrated with Telegram to supervise ultraviolet lamp performance and control product return when the lamp intensity declines. The system was developed using a light-intensity sensor placed at several distances from the ultraviolet lamp, a controller, Telegram notification, and an automatic return valve. Experimental testing was conducted by observing the relationship between sensor distance and received ultraviolet light intensity, followed by regression analysis to determine the warning threshold. The results show that the received light intensity decreases as the sensor moves farther from the ultraviolet lamp, following an exponential trend with a coefficient of determination of 0.8396. When the detected intensity falls below the 75% threshold, the system sends a Telegram warning and activates the return valve to redirect the product to the previous process. Therefore, the proposed system can support real-time monitoring, preventive maintenance, and quality assurance in bottled drinking water production.

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