Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Jurnal Polimesin
Muhamad Roni Hajianto
Unknown Affiliation
Automotive Engineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Energy Engineering Materials Science & Nanotechnology Mechanical Engineering

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

Found 2 Documents
Search

 1 
Studi Fluida Kerja pada Pemanfaatan Panasbumi Temperatur Rendah di Pulau Ambon dengan Siklus Biner Muhamad Roni Hajianto
Jurnal Geologi dan Sumberdaya Mineral Vol. 23 No. 4 (2022): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v23i4.714

Abstract

Studi ini membahas peluang pemanfaatan panasbumi temperatur rendah keluaran wellpad di Pulau Ambon sebagai pembangkit listrik tenaga panasbumi baru menggunakan siklus biner. Analisis termodinamika dilakukan dengan variasi 5 jenis fluida kerja, yaitu Isopentane, N-pentane, R245fa, Isobutane dan N-butane. Fluida kerja N-butane menghasilkan daya turbin bersih terbesar, yaitu 1,287 MW dan efisiensi termal sebesar 10,911 %. Fluida kerja isobutane menghasilkan daya bersih sebesar 1,259 MW dan efisiensi termal 10,093 %. Fluida kerja R245fa menghasilkan daya bersih sebesar 1,231 MW dan efisiensi termal 10,674 %. Fluida kerja N-pentane menghasilkan daya bersih sebesar 1,231 MW dan efisiensi termal 10,186 %. Fluida kerja Isopentane menghasilkan daya bersih sebesar 1,188 MW dan efisiensi termal 10,589 %.Analisis ekonomi dilakukan pada siklus biner ini untuk mendapatkan harga purchase equipment cost (PEC) dan menentukan biaya pembangunan instalasi pembangkit. Fluida kerja N-butane menghasilkan harga terendah pada biaya pembangunan pembangkit sebesar 2.150 USD/kW. Pertimbangan terakhir adalah dampak lingkungan dan keamanan fluida kerja. Fluida kerja N-butane penurunan emisi CO2 sebesar 6.608,98 ton/tahun. Fluida N-butane termasuk memiliki safety group A3, 0 (nol) ODP dan 0 (nol) GWP.Katakunci: Biaya pembangkitan, emisi Co2, siklus biner, temperatur rendah
Harnessing oil refinery exhaust heat via organic rankine cycle for green hydrogen production toward net-zero emissions Hajianto, Muhamad Roni; Mutaqien, Gilang Nurul; Wibowo, Dipta Ario; Latifin, Latifin
Jurnal Polimesin Vol 23, No 4 (2025): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i4.7217

Abstract

The increasing CO2 emissions and the complexity of human activities have driven the Indonesian government to enact Law Number 16 of 2016 to achieve greenhouse gas emission reduction targets by 2030. Oil refineries, which previously only disposed of waste heat without being utilized, have now become potential sources of sustainable energy. Through the development of Organic Rankine Cycle (ORC) technology, this waste heat can be converted into electricity. This research focuses on four types of working fluids, namely Propane, Isopentane, Isobutane, and R245fa. The results showed that the electricity generated from each ORC system was 18.34 MWh (Propane), 52.77 MWh (Isopentane), 32.17 MWh (Isobutane), and 21.23 MWh (R245fa), respectively. This electricity can be used to produce green hydrogen through electrolysis methods, resulting in 366.83 kg (Propane), 1055.42 kg (Isopentane), 643.33 kg (Isobutane), and 424.67 kg (R245fa) of green hydrogen. Compared to hydrogen production through fuel technology, ORC implementation can reduce CO2 emissions by 12.64 t.CO2 (Propane), 36.36 t.CO2 (Isopentane), 22.16 t.CO2 (Isobutane), and 14.63 t.CO2 (R245fa). All calculations were based on 24-hour operation. Isopentane produces the highest power among the four other organic working fluids and generates the largest profit from green hydrogen production through electrolysis processes, amounting to Rp. 55,069,944.78 per day. The innovation of applying ORC systems in oil refineries is an effective step in reducing carbon emissions to support sustainable energy production.
Co-Authors Latifin, Latifin Mutaqien, Gilang Nurul Wibowo, Dipta Ario