Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Jurnal Distilasi International Journal of Research in Vocational Studies (IJRVOCAS)
Rahmadina, Nisa
Unknown Affiliation
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
PENGGUNAAN DEEP EUTECTIC SOLVENT DALAM PENURUNAN FFA MINYAK JELANTAH SERTA PENGARUH KECEPATAN DAN WAKTU PENGADUKAN Dzakiroh, Ayu; Rahmadina, Nisa; Syarif, Aida; Fatria, Fatria; Rusnadi, Irawan; Erlinawati, Erlinawati
Jurnal Distilasi Vol 6, No 2 (2021): Jurnal Distilasi
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jd.v6i2.4128

Abstract

Biodiesel merupakan salah satu sumber energi alternatif yang dapat di perbaharui dan mampu untuk mengurangi ketergantungan energi nasional terhadap energi fosil. Biodiesel diproduksi dari minyak tumbuhan atau lemak hewan. Minyak nabati yang dapat digunakan sebagai bahan baku adalah minyak jelantah. Minyak jelantah mengandung asam lemak bebas atau Free Fatty Acid (FFA) yang tinggi. Penurunan kadar FFA dilakukan melalui cara ekstraksi menggunakan DES yang terbuat dari campuran Choline Chloride dan Ethylene Glycol dengan rasio molar 1:2. Dalam penelitian ini dlakukan variasi rasio molar Minyak Jelantah:DES sebesar 1:1, 1:2, 1:3, dan 1:4, variasi kecepatan pengadukan 150 rpm dan 300 rpm, dan variasi waktu selama 60 menit dan 120 menit pada suhu 60oC. Hasil penelitian menunjukkan bahwa rasio molar terbaik adalah 1:4, kecepatan pengadukan 300 rpm, dan waktu selama 120 menit dengan penurunan FFA hingga 0,55%.
The Comparison of Hydrogen Purity on Brown’s Gas Using Dry Cell Electrolyzer with/without Polyvinyl Alcohol (PVA) Separator Membrane Rahmadina, Nisa; Bow, Yohandri; Yusi, Syahirman
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 2 (2023): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i2.205

Abstract

Global environmental issues that demand good air quality have encouraged various energy sources to develop environmentally friendly energy. Brown’s Gas is produced by using an electrolysis system to separate water into Hydrogen (H2) and Oxygen (O2) gas. The dry cell is an electrolyzer that is widely used for both small and large-scale hydrogen production systems. A dry cell electrolyzer was designed with 12 stages of 316 stainless steel with Polyvinyl Alcohol as a polymer membrane to prevent mixing H2 and O2 to get a high percentage of hydrogen purity. This study compares hydrogen purity on Brown’s gas using a dry cell electrolyzer with PVA with/without a PVA separator membrane. The result shows that the PVA membrane significantly impacted hydrogen purity. The hydrogen purity on Brown’s gas without PVA membrane for KOH, NaOH, KCl, and Seawater was 58.37%, 56.42 %, 50.16%, and 55.22 %. Compared to using the membrane was 78.32%, 77.80%, 63.16%, and 74.0 %, with the highest hydrogen obtained was KOH electrolyte.
Co-Authors AIDA SYARIF Dzakiroh, Ayu Erlinawati Erlinawati, Erlinawati Fatria, Fatria Irawan Rusnadi Yohandri Bow Yusi, Syahirman