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All Journal Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer OPERATION EXCELLENCE: Journal of Applied Industrial Engineering MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering DEDIKASI PKM Jurnal Pengabdian Masyarakat (ABDIRA) Jurnal Minfo Polgan (JMP) Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Integrasi : Jurnal Ilmiah Teknik Industri International Journal of Education, Vocational and Social Science JIPITI: Jurnal Pengabdian kepada Masyarakat
Lia Nur Octavia
Institut Teknologi Perusahaan Listrik Negara
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Nursing Public Health Social Sciences Other

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Integrated Pretreatment of B40 Biodiesel in Steam Power Plants: Operational Mitigation, K3L Implementation, and Professional Ethics Lia Nur Octavia; Aries Susanty
International Journal of Education, Vocational and Social Science Vol. 5 No. 04 (2026): International Journal of Education, Vocational and Social Science( IJVESS)
Publisher : Cita konsultindo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63922/ijevss.v5i04.6394

Abstract

The implementation of a 40% biodiesel blend (B40) in steam power plants presents operational challenges associated with fuel viscosity, hygroscopicity, oxidation stability, and particulate contamination. This study evaluates an integrated pretreatment approach combining additive treatment, ceramic membrane separation, and thermal conditioning to improve B40 fuel quality and mitigate potential operational risks in power generation systems. Experimental tests were conducted by varying the 2-Ethylhexyl nitrate (2-EHN) additive concentration at 200–1100 ppm, applying ceramic membrane filtration with a 0.01 μm pore size at 1–2 bar, and heating B40 to 40–50°C. Fuel quality was evaluated based on viscosity, cetane number, TFr, and particulate concentration, while combustion-related emissions were assessed using a 9-hp diesel engine. The results showed that heating B40 to 50°C reduced viscosity from 4.6 to 3.6 mPa·s, indicating improved fuel-flow characteristics. Additive treatment also substantially reduced measured particulate concentrations, with reductions of 77%, 87%, and 95% for particles ≥4, ≥6, and ≥14 μm, respectively, at 1000 ppm. The cetane number showed a favorable response at selected additive concentrations, particularly within the 400–900 ppm range. Combined additive treatment and thermal conditioning produced improvements in several fuel-quality parameters. At 100% engine load, CO emissions were approximately 250–270 mg/m³, while NOx decreased from approximately 740 to 510 mg/m³ under the tested conditions. From a K3L perspective, the integrated treatment requires controls for chemical handling, pressurized filtration, fuel heating, leakage, fire hazards, and waste management. Overall, the findings indicate that integrated pretreatment has potential to mitigate key B40 operational challenges, although further validation under actual PLTU operating conditions is required.
Pengaruh Material Elektroda dan Variasi Elektrolit terhadap Kinerja Elektrolisis Air pada Arus 10–50 A dalam Sistem Skala Kecil Nadira Ghina Azzahra; Muhammad Ridwan; Lia Nur Octavia; Rudina Okvasari
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 5 No. 2 (2026): Jurnal Teknik Mesin, Industri, Elektro dan Informatika
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v5i2.6062

Abstract

The growing demand for clean energy sources has driven the development of efficient hydrogen production technologies, one of which is water electrolysis. The performance of electrolysis systems is influenced by various parameters; however, understanding of the dominant factors in small-scale systems remains limited. This study aims to examine the effects of electrolyte type (NaOH, KOH, and NaCl), electrolyte concentration (1N–5N), electrode material (stainless steel 316 and aluminum), and electrode thickness on the performance of water electrolysis under electric current variations of 10–50 A. System performance was evaluated based on the volume of gas produced within a fixed operating time of 5 minutes. The results indicate that increasing electric current consistently enhances the volume of gas generated under all experimental conditions. Nevertheless, differences in system performance are more strongly influenced by electrolyte characteristics than by other parameters. The KOH electrolyte produced the highest gas volume across all current variations, with an increase of approximately ±10–15% compared to NaOH and ±20–30% compared to NaCl. Increasing electrolyte concentration improved performance up to a certain limit before mass transport limitations occurred. Overall, system performance is more strongly governed by electrolyte type and concentration than by electrode characteristics, indicating that electrolyte-based optimization is a more effective approach.
Co-Authors Ade Caswito Ade Caswito Adiwijaya, Rangga Prasetya Aminullah Assagaf Amirulloh, Fikri Ahmad Annisa Fauziah, Annisa Apsari, Risha Firly Arief Suardi N Chairat Aries Susanty Asnul, Nur Shania Bahasoan, Alisya Sulifianti Chairat, Arief Suardi Nur Charly, Plasidus Desiawan, Victor Assani Eko Sulistiyo Eri Prabowo Firmansyah, Fariz Giri Wahyu Alam Habibie, Muhammad Yusuf Hendri Hendri Hotmauli Simatupang Kusumastuti, Dyah Pratiwi Lili Rasyidi M. Hilal Baiquni Al Mahdi Maulana Aditya Muhammad Ahsan Muhammad Ridwan Nadira Ghina Azzahra Putri Mutiara Qalbi Riskin, Annisa Nadilah Rudina Okvasari Rusjdi, Halim Salsabila, Mawarita Suhengki Suhengki Sulastri Sulastri Syis Maulana Tara Syauqina Taufik Hidayat Theresia M Napitupulu Tri Wahyu Adi Tri Wahyu Oktaviani Putri Utami Wahyuningsih