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All Journal PROMINE Angkasa: Jurnal Ilmiah Bidang Teknologi G-Tech : Jurnal Teknologi Terapan Prosiding SNAST Jurnal Teknika : Jurnal Teoritis dan Terapan Bidang Keteknikan Action Research Literate (ARL) Indonesian Community Journal Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Ilmiah Teknik Informatika dan Komunikasi Innovative: Journal Of Social Science Research Jurnal Global Ilmiah Jurnal Teknik Pertambangan (JTP) Diteksi : Jurnal Pengabdian Kepada Masyarakat
I Putu Putrawiyanta
Universitas Palangka Raya
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Journal : Jurnal Riset Rumpun Ilmu Teknik (JURRITEK)

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Analisis Perubahan Kualitas Batubara Sebelum dan Sesudah Swabakar di Stockpile 10 Port Paring Lahung Mellysa Caldera; Deddy Nan Setya Putra Tanggara; Dody Ariyantho Kusma Wijaya; I Putu Putrawiyanta; Yos David Inso
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6878

Abstract

Coal is an important energy source that is still widely used in industry, especially the power generation industry, because of its high energy content. However, in the process of handling and storage, coal has the characteristic of being easily oxidized, This oxidation process, if it occurs continuously, can cause internal heat accumulation which eventually triggers spontaneous combustion. This study aims to analyze changes in coal quality before and after spontaneous combustionto find out how spontaneous combustionaffects coal quality in stockpiles. The research method used is a quantitative method where the data from laboratory tests on coal quality before and after spontaneous combustionis analyzed, the comparison of coal quality in stockpile 10 before and after spontaneous combustionis then graphed to see changes in the quality of each parameter. Based on the results of the analysis of changes in coal quality before and after spontaneous combustion, there were significant changes to several coal quality parameters, namely Total Moisture which was originally from 7.06% to 5.50% (down by 1.56%), Moisture which was originally 3.91% to 3.22% (down by 0.69%), Ash Content which was originally 8.84% to 14.67% (up by 5.83%), Volatile Matter which was originally 39.77% to 35.10% (down by 4.67%), Fixed Carbon from 47.48% to 47.01% (down by 0.47%), Sulphur from 0.55% to 0.46% (down by 0.9%), and Calorific value decreased from 6,921 to 6,289 kcal/kg (down by 632 kcal/kg). This decrease in quality has a direct effect on the selling value and efficiency of coal combustion. The existence of an analysis of changes in coal quality due to spontaneous combustioncan help companies to find out how much of an impact losses can be caused by the occurrence of spontaneous combustion. By considering the potential losses due to spontaneous combustion, the company will make efforts to prevent the occurrence of spontaneous combustion in the future to minimize the losses caused.
Co-Authors Agnesius Adi Lauriandro Aljack, Andreas Asi Ambeng, Rafvie Resido APRILIA, REZA Ariyantho Kusma Wijaya, Dody Asri Fridtriyanda Brianto, Hendrik Deddy Nan Setya Putra Tanggara Deddy Tanggara Djanas Usup, Hepryandi Luwyk Dody Ariyantho Kusma Wijaya Dwi Indah Purnamawati, Dwi Indah Ferdinandus Ferdinandus, Ferdinandus Ferra Murati Fidayanti, Neny Hendrik Brianto Hepryandi L. Dj. Usup Immanuel Nababan Indrajaya, Fahrul Inso, Yos David Irga Loti Rante L., Prayoga Betrio Lumbantoruan, Pudan S. Luwyk Djanas Usup, Hepryandi Mahara, Deo Malau, Andri Antonius Martua Risa Munthe Matius Yosefhin Mellysa Caldera Miftahussalam _ Nababan, Immanuel Nadeak, Romualdo Nasrullah Nasrullah Neny Sukmawatie Ni Putu Ayu Indyastika Novalisae Noveriady Nuansa Mare Apui Ganang Pati Lewar, Immanuel Pebryanto, Pebryanto Prawindya Kumara, I Dewa Made Rante, Irga Loti Rivaldo Tarigan, Rio Samosir, Davidson Saptawartono Saptawartono Saptawartono, Saptawartono Simamora, Andre Sirait, Josua Situmorang, David Benedictus Sukmawatie, Neny Talayuk, Monica Anastacia Oktavia Usup, Hepryandi Luwyk Djanas Virgiyanti, Lisa Wijaya, Dody Ariyantho Kusma Wiryanto, Yustinus Hendra Yosa Yonathan Hutajulu Yossa Yonathan Hutajulu Yulian Taruna Yunida Iashania Yunitae Kristianie Yusias Andri