Article Per Year (5 Year)
p-Index From 2020 - 2025
3.182
P-Index
This Author published in this journals
All Journal Indonesian Mining Journal Journal Transformation of Mandalika Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Sains dan Teknologi Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan JURNAL TEKNOLOGI MINERAL FT UNMUL Indonesian Mining Journal Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Venus: Jurnal Publikasi Rumpun Ilmu Teknik Jipmor: Jurnal Ilmu Pendidikan Dan Humaniora
Harjuni Hasan
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering 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 Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Transportation

Published : 25 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 25 Documents
Search

 1   2   3 
Pemanfaatan Limbah Hasil Pembakaran Batubara Faba (Fly Ash dan Bottom Ash) PLTU Menjadi Paving Block Dian Isnandar; Harjuni Hasan; Albertus Juvensius Pontus; Agus Winarno; Windhu Nugroho
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 2 No. 4 (2024): Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v2i4.603

Abstract

Water absorption test and compressive strength test were conducted to determine the quality standards of paving blocks. This research was conducted by using a mixture of fly ash, bottom ash and cement. The tests carried out in this study were water absorption test and compressive strength test using 3 compositions of 5%, 8% and 12%. In each composition using 3 samples for testing. Tests were carried out with a vulnerable time between 7 days, 14 days and 28 days. The highest water absorption results in the 8% composition with water absorption of 1.467%. The highest compressive strength results in the 8% composition with a compressive strength of 10.479 Mpa.
Penentuan Geometri Jalan Akses Berdasarkan Aashto dan Kepmen 1827 di Pit A4 Benaung PT.Energi Cahaya Industritama Arya Mu’min Wally; Tommy Trides; Agus Winarno; Harjuni Hasan; Revia Oktaviani
Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Vol. 3 No. 1 (2025): Januari: Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik S
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/konstruksi.v3i1.716

Abstract

Mining roads are one of the most important facilities that greatly affect the smoothness of production and affect mining costs. Therefore, the construction of mining roads must be carried out carefully to meet technical and work safety standards. Road conditions, distance, road slope and road carrying capacity will greatly affect the production capacity of heavy equipment, especially the production capacity of transport equipment. The location of this research is at PT. Energi Cahaya Industritama, precisely in Palaran sub-district, Samarinda city, East Kalimantan province. After observations were made at the research location, it was found that the geometric conditions of the road did not comply with the standards based on the overburden transport equipment or the largest transport equipment, for example, the width of the road on bends and the slope of the road. After conducting the research, the results of the data from the geometry of the access road were obtained, namely, the actual condition of the geometry of the access road on the straight road width is divided into 6 segments with a width of 13.3 meters, 14.3 meters, 14.5 meters, 13.2 meters, 15 meters, 15.7 meters. Meanwhile, the width of the bend road is also divided into 2 segments with a width of 15.9 meters and 15.5 meters respectively. And on the slope of the road there are 2 segments with values ​​of 11.1% and 14.8% respectively. Based on the results of the simulation software, the productivity of the transport equipment was obtained at 92.42 BCM/hour, which shows that productivity has increased by 12.23 BCM/hour from the actual productivity value of 80.109 BCM/hour. It has an average cycle time of 10.33 minutes, which shows a reduction in time or 6.01 minutes faster than the actual average cycle time of 16.34 minutes.
Pengaruh Total Resistance Terhadap Produksi Dump Truck Lgmg CMT96 Pada Pengangkutan Overburden PT Ansaf Inti Resources Kabupaten Kutai Kertanegara Provinsi Kalimantan Timur Arsuwendi Arsuwendi; Harjuni Hasan; Albertus Juvensius Pontus
Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Vol. 3 No. 1 (2025): Manufaktur : Publikasi Sub Rumpun Ilmu Keteknikan Industri
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/manufaktur.v3i1.773

Abstract

PT Ansaf Inti Resources is a company engaged in coal mining using the open pit method. In the process of mining in open pit mines, haul roads are indispensable in the process of transporting overburden and play an important role in the mining production cycle. The purpose of the study is to determine the total resistance to overburden production of the LGMG CMT96 conveyance based on the haul road segment that has been determined from the overburden loading point to the disposal of the material, then a calculation is made based on the standard number of good total resistance to the actual haul road. After calculating all segments of the haul road, the results of plotting the total obstacle graph against the speed, travel time, and production of the haul. So every 1% increase in total resistance will reduce the speed of the conveyance 1.346 km / h, while every 1% increase in total resistance will reduce the travel time of the conveyance 0.0464 minutes. The production results of the CMT96 conveyance before the improvement of the total obstacle to the road surface amounted to 55 lcm and 49 lcm, while after the improvement of the total obstacle to the road surface there was an increase in the production of the conveyance of 68 lcm and 62 lcm. So every 1% increase in total resistance will reduce the production of conveyance by 4.7429 lcm.
PERHITUNGAN KONSUMSI BAHAN BAKAR PADA HD 465 -7R MENGGUNAKAN METODE RPM MESIN DAN PENDEKATAN PER SEGMENT PADA PERUSAHAAN PERTAMBANGAN DI KALIMANTAN TIMUR Pranajiwa; Shalaho Dina Devy; Albertus Juvensius Pontus; Windhu Nugroho; Harjuni Hasan
Indonesian Mining Journal Vol 27 No 2 (2024): Indonesian Mining Journal, October 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No2.2024.1578

Abstract

Fuel is usually used by engines to move or do work. In this article, the machine is a mining industry vehicle with the code HD 465 – 7R type from the Komatsu company. The vehicle is used to move overburden material from the loading area to the disposal area. Fuel consumption is usually influenced by several factors, the most influential of which are the slope of the road, the type of material used for the road, and the distance from the loading place to the dumping place. There are several methods are used to calculate fuel consumption, the most familiar of which is the vehicle working hours (hour meter) method. In this research, the calculation of fuel consumption uses engine RPM with a segment approach method taken with a segment distance of between 100 - 200 meters. The results of calculating fuel usage on the HD 465 – 7R have a figure of 51.7 liters/hour, with the actual value being 51.9 liters/hour. The conclusion of this research is that by using the engine RPM method, the results of fuel usage calculations are also close to the actual values. Testing by RPM with an hour meter is very different, where testing by RPM is based on the length of duration at that RPM number; the higher the RPM and the longer the duration of time, the greater the fuel released. This is continuous with the road segment, where an uphill road segment will definitely increase travel time due to a decrease in speed, and the RPM will increase.
PERHITUNGAN KONSUMSI BAHAN BAKAR PADA HD 465 -7R MENGGUNAKAN METODE RPM MESIN DAN PENDEKATAN PER SEGMENT PADA PERUSAHAAN PERTAMBANGAN DI KALIMANTAN TIMUR Pranajiwa; Shalaho Dina Devy; Albertus Juvensius Pontus; Windhu Nugroho; Harjuni Hasan
Indonesian Mining Journal Vol 27 No 2 (2024): Indonesian Mining Journal, October 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No2.2024.1578

Abstract

Fuel is usually used by engines to move or do work. In this article, the machine is a mining industry vehicle with the code HD 465 – 7R type from the Komatsu company. The vehicle is used to move overburden material from the loading area to the disposal area. Fuel consumption is usually influenced by several factors, the most influential of which are the slope of the road, the type of material used for the road, and the distance from the loading place to the dumping place. There are several methods are used to calculate fuel consumption, the most familiar of which is the vehicle working hours (hour meter) method. In this research, the calculation of fuel consumption uses engine RPM with a segment approach method taken with a segment distance of between 100 - 200 meters. The results of calculating fuel usage on the HD 465 – 7R have a figure of 51.7 liters/hour, with the actual value being 51.9 liters/hour. The conclusion of this research is that by using the engine RPM method, the results of fuel usage calculations are also close to the actual values. Testing by RPM with an hour meter is very different, where testing by RPM is based on the length of duration at that RPM number; the higher the RPM and the longer the duration of time, the greater the fuel released. This is continuous with the road segment, where an uphill road segment will definitely increase travel time due to a decrease in speed, and the RPM will increase.
STUDI PENCAMPURAN BATUBARA KUALIATAS RENDAH DENGAN ARANG GERGAJI KAYU SENGON PADA PROSES PEMBUATAN BRIKET Donal; Harjuni Hasan; Agus Winarno; Windhu Nugroho; Shalaho Dina Devy
Jipmor: Jurnal Ilmu Pendidikan Dan Humaniora Vol 2 No 1 (2024): June
Publisher : Institut Pendidikan Alfatah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jipmor.v2i1.16

Abstract

Abstract: Abstract: This research aimed to discover the percentage of the proximate analysis results in the coal and to discover its effect on the calorific value of the coal it was conducted by obtaining the coal samples to be analyzed, and the samples were then processed to produce the samples ready to testing. The results have shown that variations of adhesive had a significant effect on moisture, ash content, volatile matter, fixed carbon, temperature of combustions while not affected the rate and density and compressive strength. The best treatment from this study was obtained from treatment charcoal and with compostions 50% coal : 50 sengon charcoal with sampel code KH (pulaubalang) and resulting from this treatment briquettes were moisture of 5.99 % ; ash content 6,92 % ; volatile matter 11,42% fixed carbon 75,65% burning rate of 3,74 g/minute; fire ignition 6: 36 minute; density of 0,23 g/cm3; compressive strength of 38,22 kg/cm2. Briquets with composition 50% coal : 50 sengon charcoal with sampel code KP (balikpapan) and resulting from this treatment briquettes were moisture of 6,96 % ; ashcontent 4,73 % ; volatile matter 11,92% fixed carbon 76,39% burning rate of 2,61 g/minute; fire ignition 6: 57 minute; density of 0,21 g/cm3; compressive strength of 24,70 kg/cm2.
Penjadwalan Kerja Motor Grader GD14M Menggunakan Metode URCI Untuk Peningkatan Produksi Alat Angkut Di PIT 2 Banko Barat PT. Bukit Asam, Tbk, Tanjung Enim Sumatera Selatan. Fery Ferdiansyah; Harjuni Hasan; Lucia Litha Respati; Agus Winarno; Tommy Trides
Journal Transformation of Mandalika, e-ISSN: 2745-5882, p-ISSN: 2962-2956 Vol. 4 No. 5 (2023): Mei
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jtm.v4i5.1634

Abstract

PT Bukit Asam adalah salah satu perusahaan energi kelas dunia yang bergerak dibidang pertambangan batubara. PT Bukit Asam memiliki beberapa lokasi tambang yang salah satunya adalah Tambang Banko Barat Pit 2 yang menggunakan sistem penambangan truck dan shovel. Jalur pengangkutan untuk kegiatan produksi batubara merupakan salah satu aspek penting dalam operasi penambangan batubara di tambang Banko Barat. Untuk menunjang agar jalur pengangkutan tersebut dapat berfungsi dengan baik, maka diperlukan Motor Grader yang memiliki kinerja yang andal. Penelitian ini membahas kinerja motor grader Caterpillar 14M3. Tujuan penelitian ini adalah mengetahui penggunaan waktu edar alat angkut, menentukan penjadwalan kerja motor grader dalam maintenance jalan angkut, mengetahui produktivitas alat angkut batubara sebelum dan sesudah perawatan jalan. Kondisi jalan aktual diketahui dengan mengukur nilai daya tahan menggunakan penilaian URCI. Cycle time alat angkut DT Kamaz 6520 berkurang setelah dilakukan maintenance dari 29,93 menit menjadi 26,88 menit. Penjadwalan motor grader di pit 2 dilakukan dengan prioritas maintenance sebagai berikut: segmen 1 setiap 150 menit, segmen 2 setiap120 menit, segmen 3 setiap 129 menit, segmen 4 setiap 205 menit, segmen 5 setiap 180 menit, segmen 6 setiap 560 menit, segmen 7 setiap 67,2 menit, segmen 8 setiap 71,3 menit, segmen 9 setiap 300 menit, segmen 10 setiap 92 menit, segmen 11 setiap 65, dan segmen 12 setiap 324 menit. Produktivitas dump truck Kamaz 6520 bertambah setelah dilakukan maintenance dari 42,30 ton/jam meningkat menjadi 47,10 ton/jam
Pengolahan Air Asam Tambang dengan Limbah Tempurung Sawit untuk Adsorpsi Fe, Mn, dan pH Pond Evo Kristina; Agus Wirnarno; Harjuni Hasan; Windhu Nugroho; Lucia Litha Respati
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 3 No. 2 (2025): Mei : Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v3i2.814

Abstract

One of the negative impacts of the mining process is acid mine drainage which is formed from the oxidation of minerals containing iron sulfur, such as pyrite (FeS2) and pyrothite (FeS) by oxidizers such as water and oxygen. To handle or control acid mine drainage, one way is to use activated carbon or often referred to as activated charcoal, which is a type of carbon that has a very large surface area. Charcoal is a porous solid that contains 85% to 95% carbon, produced from materials containing carbon by heating at high temperatures without oxygen (pyrolysis). Activated carbon made from palm shells is an adsorbent that can be used to treat coal mine acid water, so that the water meets standards for flowing into the environment. This study used concentration variants of 4 grams, 6 grams, 8 grams and contact times of 30 minutes, 60 minutes and 150 minutes. The results of this study show that the concentration of palm oil shell activated carbon adsorbent influences the reduction of iron (Fe) and manganese (Mn) metal levels as well as the pH conditions in acid mine drainage water. The higher the concentration and the longer the contact time, the more heavy metals are adsorbed, the contact time is the highest. The optimal concentration in this study was 150 minutes and the optimal concentration was 8 grams with physical activation.
Studi Sistem Drainase Air Tambang Batubara di Sump Pit Bara4 PT Berkat Anugerah Sejahtera Faras Dwi Putra; Salaho Dina Devy; Agus Winarno; Harjuni Hasan; Windhu Nugroho
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 3 No. 2 (2025): Mei : Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v3i2.816

Abstract

Open-pit mining system mining is greatly influenced by surface runoff, rainwater and groundwater. This surface water runoff is highly dependent on rainfall catchment areas, climate, and land use. Handling surface water runoff entering the mining area by creating water channels in the form of open channels and closed channels. One of the mining methods that is generally carried out in Indonesia is the open-pit mining method, which is widely found in East Kalimantan. Large basins will be created as a result of this mining technique, which could eventually serve as a reservoir for water from both surface runoff and groundwater. Therefore, an analysis of the runoff water output in the sump is required, sump capacity and appropriate pumping ratio so that mining activities can continue. The results of the study obtained the runoff discharge value in the sump was 4,071.37 m3/day, the sump capacity was 207,474.07 m3, the water balance in the sump with a total runoff discharge of 5,871.37 m3/day, and the existing volume of water in the sump was 24,771 m3. evaporation of 4.36 m3/day, infiltration of 91.36 m3/day, and pump discharge of 8,229.27 m3/day. A pumping ratio of 0.71 was obtained.
Evaluasi Performance Ban Micheline dan Brigstone Alat Angkut pada Pengangkutan Overburden dari Front Kerja Ke Disposal PT.Kaltim Diamond Coal Kabupaten Berau Kalimantan Timur Yoga Achmad Rynaldy; Harjuni Hasan; Tommy Trides
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 3 No. 2 (2025): Mei : Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v3i2.817

Abstract

Dump truck tires are an important component in the operation of wheel-type units that require routine inspection because they directly affect the availability and performance of the transport equipment. In the OHT 777 type unit, six tires are used with a configuration of two tires in the front and four tires in the rear. This study aims to evaluate tire performance through the analysis of Key Performance Indicator (KPI) parameters, namely Ton Kilometer Per Hour (TKPH), Tread Utilization Rate (TUR), and tire life (lifetime), in order to assess the achievement of performance targets. The research method uses a quantitative approach with actual data collection in the field, including the preparation stages, primary and secondary data collection, data processing, and preparation of the final report. The data is processed to obtain the tire KPI value. The results of the analysis show that the TUR value for MICHELIN brand tires is 68.9% and BRIDGESTONE is 70.7%, still below the company's target of 85%. The TKPH value for the OHT 773 unit is 149 (with a TKPH rating of 207) and the 777 unit is 241 (with a TKPH rating of 514). The actual lifetime of BRIDGESTONE tires was recorded at 1,698.6 hm and MICHELIN at 2,268 hm, far below the target of 8,500 hm. Tire damage found included impact (23%), sidewall damage (18%), run flat (18%), bread damage (18%), sounder cut (14%), and foreign object puncture (9%). This evaluation is expected to be the basis for improving tire management, so that tire performance in the future can be more optimal and support the smooth operation of the unit.
Co-Authors Agus Winarno Agus Winarno Agus Wirnarno Albertus Juvensius Pontus Anisah Azizah Ardhan Ismail Arsuwendi Arsuwendi Arya Mu’min Wally Brilliant Mercy Geometri Dian Isnandar Donal Dwi T. S. Fambudi Evo Kristina Fajar Ramadhan Faras Dwi Putra Fery Ferdiansyah Hamzah Umar Henny Magdalena Indri Tenri Datu Joko Suhadha Harta Nadi Koeshadi Sasmito Lucia Litha Respati M Ilham Nirwana Putri Nur Muhammad Agung Nurul Idar Ilahi Bakti Pranajiwa Reonaldo Purba Rety Winonazada Revia Oktaviani Roland Fatar Fernados Sirait Ruslan Patur Sahar S Sakdillah . Salaho Dina Devy Saskiyah Saskiyah Shalaho Dina Devi Shalaho Dina Devy Sri Wahyuni Tommy Trides windhu Nugroho Yoga Achmad Rynaldy