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All Journal ELPOSYS: Jurnal Sistem Kelistrikan Uranus: Jurnal Ilmiah Teknik Elektro, Sains dan Informatika
Resi Dwi Jayanti Kartika Sari
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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Potensi dan Perbandingan Turbin Crossflow dengan Turbin Kaplan PLTMH Wisata Telaga Muhammad Syafiudin; Resi Dwi Jayanti Kartika Sari; Rahman Arifuddin
Elposys: Jurnal Sistem Kelistrikan Vol. 12 No. 2 (2025): ELPOSYS vol. 12 no. 2 (2025)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v12i2.7221

Abstract

Microhydro power plants present a sustainable energy solution, especially for rural and remote areas like Telaga Jiwa in Sumber Porong Village, Malang. This study aims to evaluate the site's hydro energy potential and determine the most efficient turbine type between Kaplan and Crossflow for application in a small-scale MHP system. Field measurements of water discharge were conducted using the float-area method, while head elevation was obtained through Google Earth data combined with direct site verification. The analysis revealed an average discharge of 0.354 m³/s and an effective head of 9.35 meters, producing a theoretical power output of 24.13 kW. Based on performance analysis, the Kaplan turbine achieved an efficiency of 83%, slightly higher than the 80.5% efficiency of the Crossflow turbine, indicating Kaplan’s suitability for relatively stable flow and medium head conditions. The total system efficiency, accounting for turbine, generator, and transmission losses, reached 72%. This output is sufficient to provide electricity to approximately 86 households with an average daily consumption of 4.7 kWh. The study concludes that implementing an MHP at this location is technically feasible and can contribute significantly to rural electrification, reducing fossil fuel dependency, and supporting national energy resilience. The findings also offer a technical reference for future microhydro development in similar geographic and hydrological conditions.
Sistem Manajemen Baterai Pada Peralatan Catu Daya Di Equipment Room Stasiun Manggarai Dengan Aplikasi Blynk Berbasis Esp8266 Tito Ahmad Fauzan; Rahman Arifuddin; Resi Dwi Jayanti Kartika Sari
Uranus: Jurnal Ilmiah Teknik Elektro, Sains dan Informatika Vol. 2 No. 3 (2024): September: Uranus: Jurnal Ilmiah Teknik Elektro, Sains dan Informatika
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/uranus.v2i3.270

Abstract

This research aims to develop an efficient battery monitoring system using the ESP8266 module and INA219 sensor. Monitoring the battery condition effectively is crucial in various applications, especially in portable systems or isolated systems where real-time supervision is required. The method used in this research is the utilization of the ESP8266 module as the main microcontroller connected to the INA219 sensor to monitor the battery voltage, current, and power in real-time. The data obtained by the INA219 sensor is transmitted through the WiFi network managed by ESP8266 to a server or monitoring platform accessible to users via Blynk a web-based application or mobile application. The test results show that the system is capable of providing accurate information about the battery condition, including the charge level, usage current, and potential issues such as overcharge or undercharge. The implementation of this system is expected to be applicable in various applications, including renewable energy systems, portable devices, and electric vehicles, to improve battery performance and safety. The INA219 module as a voltage and current sensor found a voltage reading error percentage with a range of 0%-0.66% and an average of 0.18%. For readings at current with an error range of 0.91%-7.57%. For internal resistance readings which are calculated based on dividing the clamp voltage value by the circuit current, an error range of 0.04% -30.36% is found.
Co-Authors Muhammad Syafiudin Rahman Arifuddin Tito Ahmad Fauzan