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All Journal Majalah Ilmiah Teknologi Elektro Jurnal Teknologi Elektro CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Angkasa: Jurnal Ilmiah Bidang Teknologi Martabe : Jurnal Pengabdian Kepada Masyarakat CYBERNETICS Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Vocatech : Vocational Education and Technology Journal IJPD (International Journal Of Public Devotion) JTIKOM: Jurnal Teknik dan Sistem Komputer Journal Social Science And Technology For Community Service Jurnal Rekayasa, Teknologi, dan Sains Jurnal Abdi Masyarakat Saburai (JAMS) Journal of Engineering and Information Technology for Community Service Electrician : Jurnal Rekayasa dan Teknologi Elektro Majalah Ilmiah Teknologi Elektro
Novia Utami Putri
Universitas Teknokrat Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Social Sciences Other

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Implementasi Sensor PH-4502C dan Sensor Suhu DS18B20 Untuk Pemantauan Air Kolam Nila Pratama, Wayan Rio Adi; Dalimunthe, Ernando Rizki; Putri, Novia Utami
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 19 No. 2 (2025)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v19n2.2671

Abstract

In cultivating freshwater fish, especially tilapia, water quality is a very important factor and influences the survival of the fish being farmed. Several parameters that must be considered in improving the development of tilapia fish are temperature and pH of the water. So, a water quality monitoring system is needed to be able to assess these parameters simultaneously in one time (real time) to maintain the quality of fish cultivation. The system designed for monitoring water quality uses a pH sensor with a 4502C module and a Ds18b20 temperature sensor which is then processed using an Arduino Uno so that it can be seen on the LCD. The results of designing a temperature and pH monitoring system carried out for three days in tilapia ponds obtained an error rate in measuring the pH of pond water of 0.87% on the first day, 0.94% on the second day, and 0.79% on the third day. Apart from pH measurements, the pool temperature was measured using a comparison of two Ds18b20 temperature sensors with research results showing the highest temperature measurement at 12.00 WIB was 30.25?C for three days.
Analisa Limbah Kulit Pisang Ambon dengan Campuran Air Laut Sebagai Energi Alternatif Bio Baterai Bayu Wibowo; Novia Utami Putri; Ernando Rizki Dalimunthe; Dwi Agus Riyanto
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 19 No. 2 (2025)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v19n2.2678

Abstract

A battery is a device that can store electrical energy. Batteries are currently widely used for humanneeds such as batteries in clocks, remotes and children's toys. The batteries currently used by humans are disposable batteries, so over time they can cause environmental pollution because batteries are made from chemicals [1]. This research aims to reduce battery waste by using Ambon banana peels as a substitute for battery chemical content. The battery will be made from pure Ambon banana peel which contains potassium and chloride [2]. Chloride is a strong electrolyte that can conduct electric current and to get more electric current, Ambon banana peel is mixed with sea water. This research compares the length of use between batteries that use a seawater mixture and those that do not use a seawater mixture that will be installed on a wall clock. Batteries that use sea water have a battery life of 9 hours with a ratio of more sea water, the same amount, and more banana peels. The voltage produced by more sea water is 1.53 V with a current of 0.00069 and a power of 0.0010557 W. The voltage produced by the same ratio of sea water and banana peel is 1.65 V with a current of 0.00059 A and power 0.0009735 W. The voltage produced by comparing banana peels is more than sea water at 1.43 V with a current of 0.00064 A and a power of 0.0009152 W, while the battery that is not mixed with sea water only lasts 4 hours with the resulting voltage of 1.44 V with acurrent of 0.00082 and a power of 0.001180 W. So it can be concluded that research using an equal ratio of sea water and banana peel is the most optimalcomparison in this research because it has the highest stress level.Chemicals; Ambon Banana Peel, Sea water, Electrolyte, Bio Battery.
Analisis Perbandingan Tegangan Pada Baterai Berbahan Baku Limbah Barubara dengan Kulit Pisang sebagai Energi Alternatif arif maulana; novia utami putri; adam wisnu murti; agus apriyanto; bayu wibowo; fauzi ibrahim
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 19 No. 1 (2025)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v19n1.2773

Abstract

Pelatihan Bisnis Digital Dan Teknologi Produksi Bagi Masyarakat Pekon Mataram Kecamatan Gading Rejo Kabupaten Pringsewu Provinsi Lampung Ibrahim, Fauzi; Putri, Novia Utami; Apriyanto, Agus; Murti, Adam Wisnu; Pratiwi, Dian; Wahyu, Wahyu
JURNAL ABDI MASYARAKAT SABURAI Vol 6, No 01 (2025): JURNAL ABDI MASYARAKAT SABURAI
Publisher : Universitas Sang Bumi Ruwa Jurai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24967/jams.v6i01.3946

Abstract

Program Pengabdian kepada Masyarakat (PKM) ini dilatarbelakangi oleh permasalahan rendahnya pemanfaatan teknologi dalam proses produksi dan pemasaran yang dihadapi oleh pelaku usaha mikro di Desa Mataram, Kecamatan Gading Rejo, Kabupaten Pringsewu. Masyarakat desa sebagian besar bergantung pada sektor pertanian dan usaha mikro, namun keterbatasan dalam akses teknologi, literasi keuangan, dan strategi pemasaran digital menyebabkan rendahnya daya saing produk mereka di pasar yang lebih luas. Kegiatan ini dilaksanakan di Balai Desa Mataram pada tanggal 31 Desember 2024 dengan tujuan untuk meningkatkan kapasitas ekonomi masyarakat melalui pelatihan dan pendampingan yang terintegrasi. Pelatihan mencakup tiga aspek utama, yaitu pelatihan teknologi produksi (penggunaan alat pengering dan pengemasan vakum), pelatihan manajemen usaha (literasi keuangan dan penyusunan rencana bisnis), serta pelatihan pemasaran digital (penggunaan media sosial, e-commerce, dan branding produk). Hasil kegiatan menunjukkan adanya peningkatan pemahaman dan keterampilan masyarakat mitra dalam mengadopsi teknologi dan strategi bisnis modern. Evaluasi menggunakan kuesioner menunjukkan peningkatan pemahaman hingga 80 persen setelah pelatihan. Program ini diharapkan mampu membangun ekosistem usaha berbasis digital yang mandiri dan berkelanjutan di desa, mendukung visi Smart Village.
Optimizing MATLAB Applications to Advance Automotive System Development Ibrahim, Fauzi; Hadi, Agung Efriyo; Marjuni, Teuku; Apriyanto, Agus; Putri, Novia Utami; Wahyudi, Retno; Sembiring, Alexander; Murti, Adam Wisnu
Jurnal Rekayasa Teknologi dan sains Vol 9, No 2 (2025): Jurnal Rekayasa, Teknologi, dan Sains
Publisher : Fakultas Teknik Universitas Malahayati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jrets.v9i2.21385

Abstract

The automotive industry continues to evolve with the integration of sophisticated computational tools to optimize design, analysis, and control systems. MATLAB, known for its powerful numerical and simulation capabilities, has emerged as a key tool in achieving efficiency, accuracy, and automation across automotive engineering processes. This study explores the strategic utilization of MATLAB in areas such as engine modeling, vehicle dynamics simulation, embedded system development, and control system design. The research employs a qualitative method supported by case studies from various industrial applications, highlighting how MATLAB toolboxes like Simulink, Stateflow, and Simscape contribute to reducing development time and improving system performance. Results show that optimized MATLAB use not only accelerates prototyping and testing phases but also enhances precision in control strategies, especially for electric and autonomous vehicles. This paper concludes by emphasizing the growing importance of MATLAB proficiency among automotive engineers and its role in driving digital transformation in the industry. 
Analysis of Thermal Efficiency of the Honda GK5 Engine Fueled with Young Coconut Waste Bioethanol Using a Thermodynamic Approach Wahyudi, Retno; Ibrahim, Fauzi; Sembiring, Alexander; Apriyanto, Agus; Murti, Adam Wisnu; Putri, Novia Utami
VOCATECH: Vocational Education and Technology Journal Vol 7, No 1 (2025): August
Publisher : Akademi Komunitas Negeri Aceh Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38038/vocatech.v7i1.214

Abstract

The global energy crisis and increasing awareness of the negative environmental impacts of fossil fuels have driven the development of sustainable alternative energy sources. One promising renewable fuel is bioethanol, especially when produced from agricultural waste such as young coconut waste. This study aims to evaluate the effect of using bioethanol derived from young coconut waste on the thermal efficiency of the Honda GK5 engine through thermodynamic analysis based on the Otto cycle model and verification using experimental data. The research method includes laboratory testing of the Honda GK5 engine with variations in fuel mixtures: E0, E10, E20, and E30. The test results show a significant increase in thermal efficiency up to the E20 mixture, with an experimental efficiency of 31.8% and a theoretical efficiency of 32.0%. This improvement is attributed to the high octane number of bioethanol, which supports more complete combustion. However, at the E30 mixture, a decrease in efficiency is observed due to the lower heating value of bioethanol. The Otto cycle model successfully represents the trend of thermal efficiency with an average deviation of 1–1.5% compared to experimental results. Therefore, bioethanol from young coconut waste proves not only to be environmentally friendly but also capable of enhancing engine energy performance optimally without requiring significant modifications.
Analisa Pengaruh Jumlah Sudu dan Model Sudu Turbin Terhadap Daya Turbin Undershot Pembangkit Listrik Tenaga Mikro Hidro Hendrawan, Resnandi Hendrawan; Novia Utami Putri; Ernando Rizki Dalimunthe; Dwi Agus Riyanto
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 19 No. 3 (2025)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v19n3.2680

Abstract

Micro Hydro Power Plant is a small scale power plant that uses hydropower as its energy source. The power to drive the PLTMH turbine is in the form of water flow originating from irrigation canals and rivers. The undershot turbine is a type of water turbine that utilizes river flow or irrigation channels as the driving force for the undershot turbine. In this research, based on the problems used in undershot turbines in order to get maximum results, the researcher designed a PLTMH prototype by analyzing the effect of the number of blades and the turbine blade model on the power produced by the generator in the undershot turbine of a micro hydro power plant so that it would be known that the number of blades was 12 , 14, 18 and the triangular blade model which obtains better PLTMH output. In this study, the number of blades was 14 which was the best with a resulting voltage of 9.4 volts, a current of 0.96 amperes and a power of 9.02 watts.
Analisis Kinerja Komprehensive Sistem Pendingin Primer terhadap Efisiensi Pembangkit Listrik Tenaga Panas Bumi Tipe Flash Steam Apriyanto, Agus; Novia Utami Putri; Retno Wahyudi; Alexander Sembiring; Fauzi Ibrahim; Adam Wisnu Murti
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 19 No. 3 (2025)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v19n3.2855

Abstract

Abstract. Geothermal power plants rely heavily on the efficiency of their cooling systems to optimize overall energy conversion. This study investigates the performance of the primary cooling systems, namely direct contact condensers and mechanically induced flow cooling towers in Unit 3 of PT. Pertamina Geothermal Energy Tbk, Ulubelu Area, Lampung. Performance metrics are assessed using parameters such as range, approach, and effectiveness for the cooling tower, and thermal efficiency calculations for the condenser and steam turbine. Daily operational data were collected and analyzed. The results show that fluctuations in cooling tower effectiveness significantly affect condenser vacuum and turbine efficiency. The average actual cooling tower effectiveness is 70.06%, lower than the design effectiveness of 78%. The condenser shows an average thermal efficiency of 93.80%, with effectiveness variations between 83.23% to 86.44%. The turbine efficiency based on design is 87.51%, while the actual efficiency drops to the range of 81.84% to 82.48%. This decrease indicates a performance degradation of approximately 0.94% per year. This finding underlines the important role of cooling system optimization in improving the performance of geothermal power plants.
Co-Authors Agrananto Ghozanfar Agus Apriyanto Agus Mulyanto Agus Riyanto, Dwi Akhmad Jayadi Alexander Sembiring Ananda, Novan Dwiki Apriyanto, Agus Ardiantoro, Nur Faqih Arif Fauzi, Muhammad Arif Fauzi, Muhammad Arif Fauzi Arif Maulana Arif Maulana, Arif Asri Alawiyah Bayu Wibowo Dalimunthe, Ernando Rizki Dian Pratiwi Dian Pratiwi Dirga Rama Setiadi dirga, Dirga Rama setiadi Dwi Agus Riyanto Elka Pranita Erliyan Redi Susanto Ernando Rizki Dalimunthe Ernando Rizki Dalimunthe Faidar, Muhammad Anwar Sadat Fajar Anggit Nugroho Fauzi, Muhammad Arif Febrihadi, Ahmad Fauzan Firman Fahrodin Hadi, Agung Efriyo Hardianto, muhammad andre Hegen Persada Hendrawan, Resnandi Hendrawan I Wayan Sudana Ibrahim, Fauzi Ida Ayu Putu Sri Widnyani imas stiyawan Jaka Persada Sembiring Jupriyadi, Jupriyadi Leny Meilisa Lie Jasa Marjuni, Teuku Muhamad Randyka Rojat muhammad Arif Fauzi Muhammad Bakri Muhammad Dandy Muhammad Kiki Darmawan Muhammad Riski Murti, Adam Wisnu Nanda Dana Pala Neneng Neneng Nur Faqih Ardiantoro Nur Faqih Ardiantoro Okky Adi Darmawan Pala, Nanda Dana Pranita, Elka Pratama, Wayan Rio Adi Qadhli Jafar Adrian Ramadani Ahmad Prayoga Ramadhani Ahmad Prayoga Retno Wahyudi Satriyan Utama Selo Jelang Pangestu Selvi Helina Sembiring, Alexander Solehudin Solehudin Solly Aryza suaidah suaidah SUAIDAH SUAIDAH, SUAIDAH Tegar Arya Pratama Tri Darma Rosmala Sari Tria Prameswari Try Susanto Usman Nur Ikhsan Utama, Satriyan Wahyu Wahyu Wahyudi, Retno Wayan Rio Adi Pratama Yusak Maryunianta Yusup, Maulid Wahid Zahwa Khoirunnisa Zain, Alfath