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Journal : Jurnal JEETech

Rancang Bangun Prototipe Solar Home System Menggunakan Baterai Lithium Sebagai Penyimpan Energi Marhatang, Marhatang; Yusuf Yunus, Muhammad; Sonong, Sonong; Lewi, Lewi; Tandioga, Remigius; Ruswandi Djalal, Muhammad
Jurnal JEETech Vol. 5 No. 1 (2024): Nomor 1 May
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/jeetech.v5i1.5106

Abstract

Utilizing the Solar Home System requires a battery as an energy storage medium produced from photovoltaic modules. Today's batteries are lead-carbon Valve Regulated Lead Acid (VRLA) batteries. This type of battery has a 90-95% round-trip efficiency and a deep discharge (DOD) level of 80%. This type of battery is not environmentally friendly because it produces lead acid. Therefore, the development of batteries in the SHS system from lithium battery technology is carried out. Besides being environmentally friendly, its round-trip efficiency is quite good compared to lead-carbon, which is 92-96% with a DOD level of 100%. In this study, it is proposed to apply lithium batteries on a lab scale so that they can assist students in developing scientific fields, especially lithium battery-based energy storage. In addition, this research will describe the process of making and prototyping lithium batteries in solar practicum learning media. From the test results obtained, a laboratory-scale Solar Home System prototype for solar power system practicum using Lithium batteries as Energy Storage. The average effect of charging the battery is 21.09 watts. With the highest battery charging voltage set at 14.08 Vdc. And the highest charging current rate is 1.37 A, with the highest battery charging efficiency rate of 12%. The characteristics of the Lithium battery itself, the DoD shown is also good when the capacity read on the battery meter is 0%. The battery can still supply 15 watts of load for 20 minutes
Rancang Bangun Modul Praktikum Penyearah Satu Fasa Terkendali Marhatang, Marhatang; Tandioga, Remigius; Ruswandi Djalal, Muhammad; Muh. Ilham, Andi; Dwia Ayanis, Rifa
Jurnal JEETech Vol. 3 No. 1 (2022): Nomor 1 May
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1237.744 KB) | DOI: 10.32492/jeetech.v3i1.3109

Abstract

The Industrial Electronics Practicum is an advanced learning process complementing theoretical knowledge and is mandatory for every student in the Energy Conversion Engineering (TKE) Study Program at Ujung Pandang State Polytechnic (PNUP). Nevertheless, its implementation is often suboptimal due to the lack of practicum modules available in the TKE Laboratory. To address this issue, this research aims to design and create a practicum module for a controlled single-phase rectifier, filling the gap in the TKE Laboratory's offerings. The design carried out in this research begins with thyristor selection, control circuit design, mechanical design, and power circuit design. After the design is carried out, it continues with manufacturing and assembly, tool testing, and data analysis. In the practical module testing, this controlled single-phase rectifier uses half waves, with a resistive load (R). The test results of the module that has been created show that this practical module can operate well and produce an output waveform that can be said to be in accordance with theory.