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All Journal Jurnal Informatika dan Teknik Elektro Terapan Jurnal Teknik Terapan (J-TETA)
Cahyaning Nur Karimah
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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METODE-METODE HARVESTING ENERGY MEKANIK PADA SEPEDA MOTOR LISTRIK UNTUK MENINGKATKAN EFISIENSI BATERAI Nugraha, Luthfi Dirsya; Moh Rosyid; Sigit Firgo; Haikal Amri Simamora; Iskandar D'last Prince. R; Cahyaning Nur Karimah
Jurnal Informatika dan Teknik Elektro Terapan Vol. 13 No. 3S1 (2025)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v13i3S1.7997

Abstract

Sepeda motor listrik semakin banyak digunakan karena dianggap mampu menjawab kebutuhan transportasi ramah lingkungan. Meski demikian, daya tahan baterai masih menjadi kendala utama dalam pengembangannya. Penelitian ini berfokus pada kajian efektivitas berbagai metode pemanenan energi mekanik sebagai upaya meningkatkan efisiensi energi dan memperpanjang usia pakai baterai. Kajian dilakukan menggunakan Systematic Literature Review (SLR) dengan model PRISMA-SLR. Dari 542 artikel yang dihimpun melalui Google Scholar, disaring menjadi 22 artikel yang relevan dan dianalisis lebih mendalam. Hasil kajian menunjukkan bahwa sistem pengereman regeneratif mampu meningkatkan jarak tempuh hingga 17,1%. Selain itu, penggunaan generator berbasis roda dan turbin angin dinilai cukup efektif sebagai sumber energi tambahan, walaupun kinerjanya sangat dipengaruhi oleh kondisi kecepatan. Metode Vibration Energy Harvesting berbasis piezoelektrik menghasilkan energi tambahan dalam jumlah kecil, namun tetap bermanfaat pada kondisi tertentu. Sementara itu, Kinetic Energy Recovery System (KERS) menunjukkan efisiensi paling tinggi, dengan potensi pemulihan energi hingga 88,2%. Secara keseluruhan, kombinasi beberapa metode pemanenan energi dalam satu sistem yang terintegrasi diyakini mampu mendukung efisiensi penggunaan energi dan mempercepat pengembangan sepeda motor listrik berkelanjutan.
The Free Fatty Acid Reduction Using Cacao (Theobroma cacao L) Bean Husk Charcoal In Used Cooking Oil Dafit Ari Prasetyo; Dicky Adi Tyagita; Cahyaning Nur Karimah; Alex Taufiqurrohman Zain; Umi Sholikah
Jurnal Teknik Terapan Vol. 5 No. 1 (2026): April
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jteta.v5i1.126

Abstract

Used cooking oil if not well-maintained will give some problems to drainage system or surface water. Used cooking oil has the potential to be processed into energy. However, the high free fatty acid (FFA) as a result of the use of cooking oil makes the process into energy more difficult. Because the high free fatty acid content will cause the saponification reakction in making used cooking oil into energy. Cocoa bean husk charcoal (Theobroma cacao L) has a K2CO3 content that similar to its commercial product, and also contains some traces of silicates and sulfates so that it can increase the efficiency of free fatty acids removal in used cooking oil. In this study, tests were carried out to reduce FFA levels in used cooking oil using charcoal from cocoa bean husks activated with 10M of hydrochloric acid, varying the concentrations of 5, 7.5, and 10%-m/v, as well as the temperature treatment during the process of mixing used cooking oil with activated charcoal adsorbent, which was 75, 100, and 150°C. The best FFA reduction results were found in the C2T2 reactor which reached 75% of FFA removal, where the best concentration of cocoa bean husk charcoal as an adsorbent were 7.5%m/v and the temperature of the mixing process was 100°C which can remove FFA content from 2.72 to 0.64
Co-Authors Alex Taufiqurrohman Zain Dafit Ari Prasetyo Dicky Adi Tyagita Haikal Amri Simamora Iskandar D'last Prince. R Nugraha, Luthfi Dirsya Sigit Firgo Umi Sholikah