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All Journal Antivirus : Jurnal Ilmiah Teknik Informatika al Kimiya : Jurnal Ilmu Kimia dan Terapan
Ardiansa
Department Of Electrical Engineering, Faculty Of Engineering, Universitas Teknologi Sulawesi
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT

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PERANCANGAN ALAT PENGUBAH ARUS DC KE AC BERBASIS MIKROKONTROLER SEBAGAI PENGGANTI PAGAR KEBUN Ardiansa; Ayu Annisa Akbar
Antivirus : Jurnal Ilmiah Teknik Informatika Vol 15 No 2 (2021): November 2021
Publisher : Universitas Islam Balitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/antivirus.v15i2.1721

Abstract

Farming is the main source of livelihood of Indonesians living in rural areas, one of which is corn. Corn yields are influenced by many factors, among others, the ever-changing climate, water availability, soil fertility, crop management systems and so on. At the time of initial observation to the farmer group failure is often also experienced due to the disruption of pig pests at night. So that a system is needed that can control the handling of pig pests by making traps using a stun tool. To convert DC (Direct Current) current into AC (Alternating Current) can be done with a series of power transistors. The power transistor designed is using the flip-flop method, both transistors will work alternately, this type of change includes a phase changer. The goal in this study was to create a microcontroller-based garden fence control device. This tool is able to provide an alternative in making it easier for farmers to control the land so as to avoid pig pests. The results of the trial DC current changer to AC d field is very well functioning so that farmers no longer experience pig pest disturbances at night.
Treatment of Eceng Gondok Waste into Electrical Based on Microbial Fuel Cell Hijrah Amaliah Azis; Ardiansa Ardiansa; Riki Kusuma Purnama
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol 9, No 2 (2022): al Kimiya: Jurnal Ilmu Kimia dan Terapan
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v9i2.20974

Abstract

The increasing consumption of electrical energy and still dependent on non-renewable energy has encouraged the implementation of effective, efficient, and environmentally friendly technologies to produce electrical energy. Microbial Fuel Cell (MFC) is one of the alternative technologies that utilize microorganisms in converting chemical energy from organic compounds under anaerobic conditions to be converted into electrical energy.  The study was conducted to determine the potential of electrical energy generated from the treatment of eceng gondok waste (Eichhornia crassipes) with variations in the addition of buffer solutions and combinations of electrolyte solutions using the microorganism Saccharomyces cerevisiae through Microbial Fuel Cell technology. This study consists of three stages and methods, namely sample preparation, MFC media preparation, and analysis of pH, current, voltage, and power density. Measurement of the value of the maximum voltage, maximum current and power density is carried out every 3 hours for 27 hours for each treatment. The results were obtained as follows consecutively: firstly, for variations without the addition of buffers and electrolyte solutions are 0.25 volts; 0.08 mA; 13.05 mW/m2, secondly, with buffer and electrolyte solution KMnO4 0.2 M are 1.12 volts; 0.77 mA; 562.92 mW/m2, and thirdly, with buffer and K3Fe(CN)6 0.2 M are 0.47 volts; 0.48 mA; 147.26 mW/m2. Based on the results of the study, it was concluded that the most optimal variation in producing electrical energy was in the variation in the addition of a phosphate buffer and  0.2 M KMnO4 solution.  Eceng gondok waste has the potential to be used as a source of electrical energy.
Co-Authors Ayu Annisa Akbar Chatarina Umbul Wahyuni Hijrah Amaliah Azis Riki Kusuma Purnama