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All Journal International Journal of Electrical and Computer Engineering Transmisi: Jurnal Ilmiah Teknik Elektro Jurnal Keteknikan Pertanian Rekayasa Mesin Turbo : Jurnal Program Studi Teknik Mesin JSI (Jurnal sistem Informasi) Universitas Suryadarma Infotekmesin Teaching and Learning Journal of Mandalika (Teacher) Buletin Poltanesa Jurnal Sosial dan Teknologi Indonesian Journal of Engagement, Community Services, Empowerment and Development (IJECSED) Jurnal Locus Penelitian dan Pengabdian Jurnal Teknik Industri Sinergi Polmed : Jurnal Ilmiah Teknik Mesin Journal of Scientech Research and Development Bhinneka Multidisiplin Journal Science Get Journal Structures, Infrastructure, Planning, Implementation, and Legislation Jurnal Karya untuk Masyarakat (JKuM)
Rismen Sinambela
Universitas Kristen Indonesia
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Study on Material Innovation and Electrochemical Performance in Solid-State Battery Technology for Sustainable Energy Applications Herlina Rahim; Rozlinda Dewi; Venny Yusiana; Rismen Sinambela
Science Journal Get Press Vol 3 No 1 (2026): January, 2026
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/science.v3i1.373

Abstract

Solid-state batteries (SSBs) have gained strong attention for their higher safety, greater energy density, and improved electrochemical stability compared to liquid-electrolyte lithium-ion batteries, although challenges remain in optimizing ionic conductivity, interfacial resistance, and cycling stability. This study investigates the synthesis, structural characteristics, and electrochemical performance of the argyrodite solid electrolyte Li₆PS₅Cl (LPSC), produced via high-energy mechanical milling and integrated into a prototype SSB using a Li-metal anode and NMC811 cathode. XRD analysis confirmed the formation of the cubic argyrodite phase, while SEM revealed a homogeneous particle morphology conducive to efficient ion transport. Electrochemical impedance spectroscopy (EIS) showed an ionic conductivity of 1.87 × 10⁻³ S/cm at 25°C, which increased to 3.41 × 10⁻³ S/cm after annealing at 550°C. Galvanostatic cycling at 0.1C demonstrated stable capacity retention of 92.5% after 50 cycles, indicating strong interfacial contact between the LPSC electrolyte and NMC811 cathode. Comparative evaluation with recent SSB literature shows that the optimized LPSC electrolyte achieves performance levels comparable to state-of-the-art sulfide-based electrolytes due to improved crystallinity and reduced grain-boundary resistance. These results highlight the potential of mechanically milled LPSC as a promising solid electrolyte for next-generation SSB applications.
ANALISA FAKTOR DAYA MENGGUNAKAN CAPACITOR BANK UNTUK MENINGKATKAN KUALITAS DAYA LISTRIK DI WISMA NUSANTARA INTERNASIONAL Tateng Sukendar; Rismen Sinambela; Muryan Awaludin; Alcianno G Gani
JSI (Jurnal Sistem Informasi) Universitas Suryadarma Vol. 11 No. 2 (2024): JSI (Jurnal sistem Informasi) Universitas Suryadarma
Publisher : Fakultas Ilmu Komputer dan Desain - Unsurya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35968/jsi.v11i2.1259

Abstract

Penelitian ini bertujuan untuk menganalisis kualitas daya listrik di Wisma Nusantara Internasional dengan fokus pada penerapan capacitor bank untuk memperbaiki faktor daya. Kualitas daya listrik yang buruk dapat menyebabkan berbagai masalah operasional dan peningkatan biaya energi. Studi ini mengevaluasi parameter kualitas daya, termasuk faktor daya, harmonisa, dan fluktuasi tegangan sebelum dan sesudah pemasangan capacitor bank. Metode penelitian melibatkan pengukuran parameter listrik menggunakan alat ukur daya dan analisis data yang dikumpulkan selama periode tertentu. Hasil penelitian menunjukkan bahwa pemasangan capacitor bank secara signifikan meningkatkan faktor daya dari rata-rata 0,75 menjadi 0,95, mengurangi arus reaktif, dan menurunkan kerugian daya dalam sistem distribusi listrik di gedung tersebut. Selain itu, terdapat pengurangan harmonisa arus pada level yang sesuai dengan standar IEEE 519, serta stabilisasi tegangan yang lebih baik. Penerapan capacitor bank juga berdampak positif pada pengurangan biaya energi listrik dan peningkatan efisiensi operasional peralatan listrik.
Analisis Kinerja Sistem Distribusi Energi Listrik dan Optimalisasi Beban Berbasis Pengukuran Lapangan Fransiskus Xaverius Suryadi; Leonard Lisapaly; Rismen Sinambela; Tri Hannanto Saputra
Infotekmesin Vol 17 No 1 (2026): Infotekmesin: Januari 2026
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v17i1.2903

Abstract

This study analyzes the performance of an electrical energy distribution system and load optimization in a low-voltage distribution network with dynamic load characteristics. Common problems in such systems include phase load imbalance, power losses, and power quality issues that may reduce operational efficiency. Previous studies have mainly focused on utility networks or conventional industrial installations, resulting in limited measurement-based evaluations at the institutional scale. This research aims to assess distribution system performance through direct field measurements, identify phase-current imbalance, evaluate power quality, and formulate load-optimization strategies. Measurements were conducted using a power quality analyzer under normal operating conditions for 30 minutes with a 1-minute recording interval. The results indicate that the distribution transformer operates at an average loading level of 47.4%, with a phase current imbalance of 14.89%, active power losses of 532.5 W, and an average power factor of 0.94. Overall, the findings show that improving load management and power quality plays a more significant role in enhancing system performance than increasing equipment capacity.
Analysis of Energy Transportation and Distribution in Indonesia Suganda P Simanjuntak; Rismen Sinambela; Leonard Lisapaly
TURBO [Tulisan Riset Berbasis Online] Vol 14 No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.3873

Abstract

Energy transportation and distribution are crucial components in the national energy system, serving as the main link between energy sources and consumers. The efficiency of both systems is crucial to maintain the stability of energy supply and minimize energy loss during the distribution process. This study aims to explore the importance of energy transportation and distribution in the context of national energy security and the geographical and energy infrastructure challenges in Indonesia. Using a literature study method, this study collects and analyzes literature from various academic sources and relevant reports. The results show that an efficient energy transportation and distribution system plays a major role in reducing the energy gap between regions, expanding energy access to remote areas, and supporting sustainable economic development. In addition, Indonesia's geographical challenges as an archipelagic country, such as the distance between islands and population inequality, widen the energy infrastructure gap between the western and eastern regions. Investment in energy infrastructure development, especially in disadvantaged areas, and the integration of renewable energy are important steps in strengthening national energy security. This study concludes that in order to achieve better and more equitable energy security, inclusive and sustainable energy infrastructure development policies and strategies are needed.
Using Biotechnology to Make Biofuels from Algae as Renewable Energy Rismen Sinambela; Ilham Samanlangi
Science Journal Get Press Vol 1 No 4 (2024): October, 2024
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/science.v1i3.80

Abstract

According to research published in the Journal of Applied Phycology, algae have the ability to produce biofuels with five times higher energy efficiency compared to soybean plants, making it a highly efficient and sustainable option for renewable fuels. The goal of this research is to use biotechnology to create biofuels from algae as a renewable energy. This study used a laboratory experimental design with a quantitative approach. Population: Microalgae or green algae that have high potential in lipid production, such as Chlorella vulgaris or Spirulina platensis, which are commonly used in biofuel research. Sample: Several species of algae were selected to test their effectiveness as biofuels, including genetically engineered species and natural species as a comparison. The results of the ANOVA analysis showed significant differences in lipid levels between treatment groups. The results of the T/Post-hoc test confirmed that the genetically engineered species had higher lipid levels, supporting the efficiency of biofuels. The regression results showed a strong positive correlation (R² = 0.68), which supports other studies that found that microalgae can produce biomass in a relatively short time with a controlled environment, making it efficient for large-scale biofuel production. The conversion efficiency of lipids to biofuels reached 85.5%, indicating that the transesterification method used in this study is very effective in converting algae lipids to biodiesel. The use of biotechnology in the production of biofuels from algae has great potential as an efficient and sustainable renewable energy source.
Mass Spectrometry-Based Purity Assessment of Hydrogen from Different Production Pathways: Compliance Evaluation with ISO 14687:2019 Standards Rismen Sinambela
Science Journal Get Press Vol 2 No 4 (2025): October, 2025
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/science.v2i4.272

Abstract

The global transition toward low-carbon energy has positioned hydrogen (H₂) as a key renewable fuel, particularly for applications in fuel cells that require ultra-high purity. Ensuring hydrogen quality is essential to prevent catalyst poisoning and system degradation, as defined in ISO 14687:2019 standards. This study presents a simulation-based analysis of hydrogen purity using a Gas Chromatography–Mass Spectrometry (GC–MS) modeling approach to evaluate three production pathways: green hydrogen (from electrolysis), grey hydrogen (from steam methane reforming), and a fuel cell–grade feedstock.The simulation predicts impurity profiles such as O₂, N₂, CO, CO₂, CH₄, sulfur compounds, and water vapor, comparing each with ISO threshold limits. Results indicate that green hydrogen generally complies with ISO standards, while grey hydrogen exceeds CO₂ and sulfur limits. The fuel cell–grade sample shows near-complete conformity due to simulated purification processes such as pressure swing adsorption.These findings highlight that analytical modeling can effectively predict hydrogen quality and compliance potential across different production routes. The study emphasizes that advancing hydrogen technology requires not only cleaner production methods but also reliable analytical simulations to support quality assurance and sustainability in future hydrogen economies.
Co-Authors Aidil, Muhamad Alcianno G. Gani Aldul Rahman Anifatul Faricha Anton Supriadi Wibowo Anugrah Denis Denis Edi Irvan Ambarita Emyr Hidayat Firman’s Bramadhani Flourentina Dwiindah Pusparini Fransiskus Xaverius Suryadi Fuad, Ahsanul G. Gunawan Gema Parasti Mindara Herlina Rahim Ilham Samanlangi Inna Novianty Ito Khikmatulloh Leonard Lisapaly Leonard Lisapaly Martua Manik Muhammad Achirul Nanda Muryan Awaludin Nadeak, David Ryanto Nadeak, Omsar Rudyanto Nurulhaq, Muhammad Iqbal Pradeka Brilyan Purwandoko Purba, Herianto A S Retno Indriyati K Retno Indriyati K. Rozlinda Dewi Serepina Tiur Maida Sholihah, Walidatush Simangunsong, Antonius Simanjuntak, Suganda P Sinambela, Pahala Sitinah Sitinah, Sitinah Sitti Wardiningsih Sitti Wardiningsih Sitti Wardiningsih Suganda P Simanjuntak Taran, Nober Tateng Sukendar Tri Hannanto Saputra Tri Hannanto Saputra Utsman, Fajar Venny Yusiana Widiarto, Indra Yosep Hendriyana Zulkarnaini, Andri