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All Journal REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) METAL : Jurnal Sistem Mekanik dan Termal
DINI FAUZIAH
Institut Teknologi Nasional Bandung
Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Prediksi usia pakai baterai pada sistem pencadangan unit 3 PLTU Suralaya: Prediction of battery life in the backup system of unit 3 PLTU Suralaya Dini Fauziah; Riyan Indra Laksono
JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Vol. 1 No. 2: September 2021
Publisher : Jurusan Teknik Elektro, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (476.342 KB) | DOI: 10.35313/jitel.v1.i2.2021.147-154

Abstract

Sistem cadangan sangat penting dan wajib dimiliki dalam sebuah sistem produksi. Sistem ini berfungsi untuk menjaga keandalan dari sistem tersebut. Pembangkit Listrik Tenaga Uap (PLTU) PT. Indonesia Power Suralaya merupakan salah satu perusahaan penghasil listrik yang menggunakan baterai sebagai sistem cadangan, terutama pada peralatan listrik yaitu menggunakan sistem baterai 220 VDC. Pada sistem pencadangan ini terdiri dari 104 sel baterai dan masing-masing sel baterai bernilai 2 VDC berjenis asam timbal. Masalah yang sering terjadi pada sistem baterai tersebut yaitu suhu kerja yang melebihi suhu yang ditentukan oleh spesifikasi baterai untuk bekerja maksimum dikarenakan faktor cuaca lingkungan. Permasalahan ini berdampak terhadap usia pakai baterai menjadi lebih pendek. Oleh karena itu, penelitian ini bertujuan untuk mengetahui pengaruh suhu lebih terhadap usia pakai baterai asam timbal. Data pada penelitian ini diperoleh berdasarkan pengukuran rutin bulanan yang diukur langsung menggunakan thermogun dengan analisis data menggunakan metode regresi linier. Berdasarkan hasil analisis didapat bahwa usia pakai baterai pada saat kondisi ini akan bertahan selama 13 tahun 2 bulan sejak awal dipasang yaitu sejak bulan Februari tahun 2017, dengan usia pakai seharusnya yaitu 20 tahun atau berkurang sekitar 7 tahun (± 35%) dibandingkan spesifikasinya. Dengan demikian, pada bulan Agustus tahun 2029 baterai direkomendasikan untuk diganti.
Development of Prayer Rakaat Counter Using Piezoelectric Sensor Decy Nataliana; Dini Fauziah; Mellynda Riska Dianti
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 3, No 2 (2022): REKA ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v3i2.134-141

Abstract

In this study, a rakaat counter tool was designed and implemented to reduce mistakes in calculating the number of rakaat during prayer. The piezoelectric is used as sensor which is placed on the top of the prayer mat. Rakaat is calculated when piezoelectric has detected twice prostration. There are four modes in this system, namely fardhu prayer with seven segment display, fardhu prayer with  LED display, sunnah prayer with seven segment display, and sunnah prayer with  LED display.. There is an LED indicator when the rakaat is done which should be in accordance with the prayer time using RTC. The first test of this tool was carried out with piezoelectric calibration when pressed by the load and forehead. This was accomplished to determine when piezoelectric counting proceeded as piezoelectric was connected directly to the ADC of Arduino Uno. The second test was carried out by testing the tool to be used for 3 days in 5 fardhu prayers and 1 sunnah prayer. From the results of the testing it is proven that this tool works properly, and piezoelectric can be used as a replacement button as a tool for rakaat counter.
Design and Construction of Micro-hydro Model With Different Flowrate as a Learning Medium Diki Ismail Permana; Dini Fauziah; Decy Nataliana
METAL: Jurnal Sistem Mekanik dan Termal Vol 4, No 1 (2020): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1864.732 KB) | DOI: 10.25077/metal.4.1.28-32.2020

Abstract

Renewable energy generation such as hydropower, micro-hydro, and pico hydro are among the concerns of the government to reduce the greenhouse effect, gas emissions, and global warming and have set targets in 2025. Higher education institutions are expected to contribute to government development targets, one of which is by producing human resources, which is reliable, especially in the field of renewable energy and hydropower generation. So, we need innovative learning methods or media in the teaching and learning process. In this case, a set of demonstration tools in the form of a micro-hydro system model with varying parameters so that students can easily understand a course and could connect the theory with the real world/industry.
Co-Authors Decy Nataliana DECY NATALIANA Diki Ismail Permana Mellynda Riska Dianti Riyan Indra Laksono