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All Journal Jurnal Pendidikan Teknologi dan Kejuruan Journals Mining Engineering : Bina Tambang Journal of Geoscience, Engineering, Environment, and Technology INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Geosains dan Teknologi Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Eksakta : Berkala Ilmiah Bidang MIPA Journal of Applied Engineering and Technological Science (JAETS) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Jurnal Teknologi Lingkungan Lahan Basah Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Penelitian Pendidikan Indonesia Journal of Civil Engineering and Vocational Education Jurnal Keilmuan dan Aplikasi Teknologi Industri
Heri Prabowo
Departemen Teknik Pertambangan, Fakultas Teknik, Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Astronomy 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 Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Transportation Other

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Geometry and Maintenance Analysis of All Wheater Road (AWR) TS +35 to TLS 2 Tambang Air Laya, PT. Bukit Asam, Tbk. Anjung Enim, South Sumatera Fathi Aulia Dhanio Zuhri; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 9, No 1 (2024): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i1.127572

Abstract

Indonesia has many coal resources that can play an important role in meeting domestic energy needs. The mining system applied by PT Bukit Asam Tbk is open mining with open pit mining method. The mining industry is one of the industries that is capital intensive, technology intensive, and very risky. One of the important things in mining activities is coal transportation to achieve production targets. Some factors that affect the conveyance cannot operate optimally include narrow haul road conditions so that when the conveyance passes one of the conveyances must stop, bumpy road conditions so that during transportation a lot of material is scattered. the purpose of this study is to control the condition of the haul road to be traversed so that production targets and operator safety in the mining area can be maintained properly. The width of the haul road in straight and bend conditions is different, the width of the mine road on the bend is always made larger than the straight road. This is intended to anticipate deviations in haul road width caused by the angle formed by the front wheels with the truck body when crossing the curve. A good mine road has a transverse slope between 20 mm/m and 40 mm/m or 2% to 4% for every 1m of mine haul road width. From the results of the calculations that have been carried out, the haul road geometry on the TS +35 to TLS 2 road has a length of 3,125 m by making as many as 5 segments, namely 10 straight road sections and 6 bend road segments. On the straight road there are 2 sections whose road width still does not meet the standards of Kepmen No. 1827/K/30/MEM/2018, which will have an impact on the performance of the conveyance used and can cause human error when vehicles pass each other. Meanwhile, the width of the bend road and the cross slope value on several road sections have met the road standards.
Mining Activities at the Pit 2 Electrification Mine Location at West Banko PT Bukit Asam, Tbk. Tanjung Enim, South Sumatera Monica Fadhillah Afrina Wati; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 9, No 2 (2024): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i1s.127819

Abstract

PT Bukit Asam (Persero) Tbk is a State-Owned Enterprise (BUMN) which was founded on March 2 1981 located in Tanjung Enim, South Sumatera. The purpose of production activities is to produce minerals that have a price or selling value. In coal production activities there are two productions that can be carried out, namely coal production and overburden production. PT Bukit Asam Tbk. implementing open-pit mining methods. The mining method in Pit 2 Banko Barat uses the strip mining method, because this method is used in coal deposits with a relatively small slope (dip), the slope (dip) in Pit 2 Banko Barat is N200OE/25O. Mining activities in Pit 2 Banko Barat are still being carried out are mining (exploitation), processing, marketing and post-mining activities. In coal mining activities, PT Bukit Asam Tbk. using a shovel PC 3000 earth digging tool and a Belaz transportation tool. Apart from loading and unloading excavation equipment as the main mining equipment, there is also supporting equipment such as motor graders, bulldozers, water tanks and fuel tanks to obtain optimal and maximum production results. In coal mining activities in the West Banko Mine area, PT Bukit Asam Tbk. using a Shovel PC 3000 for overburden activities, while the transportation equipment is a DT Nissan CWB 45 for coal mining activities and the HD rigid truck Belaz 75135 for overburden activities 
Distribution system dewatering in coal mining at PIT Sena Sungai Lilin District, Musi Banyuasin Regency, South Sumatra Province Prabowo, Heri; Wahyudi, Wahyudi; Rolitu, Rolitu
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.32623

Abstract

The purpose of this research is to calculate the total design discharge of water entering the mining site in the sena pit of PT Putra Muba Coal (PMC), design the appropriate shape and dimensions of the sump to accommodate the amount of water entering the mining site and calculate the number of pumps needed to remove water entering the mine to the settling pond. The source of water entering the mine area comes from rainwater entering the mine opening, water runoff from the rainwater catchment area in the area around the mine opening, and groundwater rise. Based on the results of the analysis of rainfall data for 2013-2022, a rainfall plan of 77, 225 mm/day, rainfall intensity of 9.714 mm/hour with a rainfall return period of 2 years was obtained. The rainfall catchment area at the research site is 72,936 m2 with a discharge generated of 0.03 m3 / second and groundwater discharge of 0.00812 m3 / second. To remove the water entering the mine, it is flowed naturally into the sump with dimensions of 50 m length, 14 m top width, 13 m bottom width, and 5 m depth. The dimensions of the open channel are planned with a channel width of 32 cm, a flow depth of 28 cm, a wet cross-sectional area of 13.6 cm2, a wet circumference of 97 cm, a hydraulic radius of 9.25 cm, and a channel length of 233m. The water in the sump is pumped into an open channel. The pump used has a maximum discharge of 150 m3 / hour and a total pump head of 11.8712 m with a pipe diameter of 6 inches.
Penetralan pH Air Asam Tambang Menggunakan Metode Pasif Open Limestone Channel dengan Penambahan Fly Ash, Zeolite, dan Pasir Silika Pada Pengujian Skala Laboratorium Ananda, Rizky; HAR, Rusli; Prabowo, Heri; Rahman, Harizona Aulia
Jurnal Geosains dan Teknologi Vol 7, No 1 (2024): April 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jgt.7.1.2024.75-82

Abstract

Air Asam Tambang memiliki pH yang rendah dengan kandungan logam terlarut yang tinggi. Kondisi ini apabila tidak dilakukan pengelolaan akan memberikan dampak buruk bagi lingkungan, seperti turunnya kualitas air sungai sehingga mengganggu ekosistem sungai terutama. Untuk itu penelitian ini perlu dilakukan dengan berfokus pada upaya penetralan pH air asam tambang atau air tambang dengan memanfaatkan cara pengelolaan pasif yaitu saluran kapur terbuka batu kapur (Open Limestone Channel) dengan memodifikasi melalui penambahan beberapa bahan yang dianggap mampu menetralkan pH berdasarkan penelitian sebelumnya seperti pencampuran air asam tambang dengan fly ash, penambahan zeolit pada saluran open limestone channel, dan pemanfaatan pasir silika sebagai penyaring air sehingga dapat meningkatkan pH air yang ada. Nilai pH awal air asam tambang yang digunakan pada penelitian ini adalah dengan pH 3,75, dan dari hasil pengujian yang dilakukan diperoleh nilai rata-rata pH akhir sebesar 6,59 dan efisiensi peningkatan pH dari pH awal pada setiap pengujiannya dengan rata-rata 76%.
Y Zeolite-Based Catalyst for Palm Oil Cracking to Produce Gasoline Algifari, Arif; Makertihartha, I. G. B. N.; Subagjo, Subagjo; Prabowo, Heri
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 1 Year 2025 (April 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20267

Abstract

The increasing demand for oil fuel and the decline of crude oil reserves highlight the need for alternative energy sources. Palm oil, as a renewable resource, has potential for biofuel production through catalytic cracking. This study aims to develop and evaluate modified zeolite-based catalysts, particularly ZSM-5/HY, to produce palm oil-derived gasoline that meets European fuel standards. The research involved catalyst preparation, modification with ZSM-5 and phosphorus, and activity testing in a fixed-bed reactor. Gasoline yield and catalyst performance were analyzed using gas chromatography. The results showed nearly 100% conversion of palm oil under optimal conditions, with gasoline yield meeting European standard. The addition of ZSM-5 improved conversion and RON, while phosphorus modification reduced catalyst acidity, affecting yield and coke formation. This study concludes that modifying zeolite catalysts with ZSM-5 and phosphorus enables efficient palm oil-derived gasoline production with high RON and reduced aromatic content, contributing to sustainable energy solutions. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Kajian Teknis Produktifitas dan Keserasian Excavator dengan Dump Truck pada Kegiatan Coal Getting Seam 18 PT. Kurnia Alam Investama Kabupaten Batanghari Provinsi Jambi Prabowo, Heri; UZD, Marcelino
CIVED Vol. 10 No. 2 (2023): June 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i2.397

Abstract

Penelitian ini bertujuan menghitung produktifitas dan keserasian excavator dengan dump truck pada kegiatan coal getting seam 18. Produktivitas dan kesesuaian peralatan penggalian dan pengangkutan perlu dihitung untuk menentukan nilai produktivitas mesin dalam memenuhi target produksi batubara yang ditetapkan. Metode penelitian dengan cara observasi di lapangan menggunakan data primer yang digunakan untuk perhitungan cycle time dari excavator dan alat angkut pada kegiatan coal getting. Menganalisis data dari nilai produktivitas mesin yang digunakan dalam kegiatan penambangan batubara serta kesesuaian excavator dan dump truck dalam mencapai target produksi. Produktifitas excavator kabelco SK 330 dalam durasi 60 menit kerja dapat melakukan mengeluarkan batubara sebanyak 182,92 MT/jam. Produktifitas 1 unit dump truck Mitsubishi Fuso 200 PS dapat melakukan penggangkutan 6,66 MT/jam. Berdasarkan perhitungan match factor (keserasian) antara 18 dump truck Mitsubishi Fuso 220 PS dan 1 excavator kabelco SK 330, maka diperoleh angka match factor < 1, berarti excavator harus menunggu dump truck Mitsubishi Fuso 220 PS. Pengoptimalan match faktor dan produktivitas dilakukan dengan metode trial & error dengan penambahan 3 unit dump truck dari 18 menjadi 21 dump truck, pengisian bucket 12 kali, perbaikan waktu edar (cycle time) alat gali muat menjadi 20 detik, dan waktu edar (cycle time) alat angkut menjadi 5200 detik. Maka nilai MF menjadi 1 artinya tidak ada waktu tunggu antara Excavator dengan Dump Truck.
Optimizing Digging Equipment Productivity Using Overall Equipment Effectiveness (OEE) Method in Coal Overburden Mining Activities Prabowo, Heri; Hutmi, Rahul; Dewata, Indang
invotek Vol 23 No 2 (2023): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v23i2.1097

Abstract

Coal companies have an overburden stripping production target of 95,000 bcm in January 2022, while the realization of production with the Sumitomo SH 350 LHD excavator and Hitachi Zaxis 350 H excavator is only 77,000 bcm or 82% of the production target. The purpose of this study was to obtain an analysis of the productivity of the Sumitomo SH 350 LHD Excavator (40) and Hitachi Zaxis 350 H Excavator (31) in the overburden stripping activity in January 2022, analyze the obstacle factors that caused the available working hours to be reduced by using the Fishbone diagram method, get an analysis of the Overall Equipment Effectiveness (OEE) value of the Sumitomo SH 350 LHD Excavator (40) and Hitachi Zaxis 350 H (31) Excavator before being optimized, and get the analysis and productivity of the Sumitomo SH 350 LHD Excavator (40) and the Hitachi Zaxis 350 H Excavator (31) which has been optimized with the implementation of Overall Equipment Effectiveness (OEE) to achieve the overburden stripping production target. After analysis and improvement efforts, the total overburden stripping production was 149,000 bcm, which means that it has reached the target and even exceeded the production target of 95,000 bcm/month with the OEE value of the digging equipment of 41% and 43%, respectively. However, the OEE value is still very low compared to the world-class standard OEE value, which is 85% and there is still room for improvement.
Distribution system dewatering in coal mining at PIT Sena Sungai Lilin District, Musi Banyuasin Regency, South Sumatra Province Prabowo, Heri; Wahyudi, Wahyudi; Rolitu, Rolitu
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.32623

Abstract

The purpose of this research is to calculate the total design discharge of water entering the mining site in the sena pit of PT Putra Muba Coal (PMC), design the appropriate shape and dimensions of the sump to accommodate the amount of water entering the mining site and calculate the number of pumps needed to remove water entering the mine to the settling pond. The source of water entering the mine area comes from rainwater entering the mine opening, water runoff from the rainwater catchment area in the area around the mine opening, and groundwater rise. Based on the results of the analysis of rainfall data for 2013-2022, a rainfall plan of 77, 225 mm/day, rainfall intensity of 9.714 mm/hour with a rainfall return period of 2 years was obtained. The rainfall catchment area at the research site is 72,936 m2 with a discharge generated of 0.03 m3 / second and groundwater discharge of 0.00812 m3 / second. To remove the water entering the mine, it is flowed naturally into the sump with dimensions of 50 m length, 14 m top width, 13 m bottom width, and 5 m depth. The dimensions of the open channel are planned with a channel width of 32 cm, a flow depth of 28 cm, a wet cross-sectional area of 13.6 cm2, a wet circumference of 97 cm, a hydraulic radius of 9.25 cm, and a channel length of 233m. The water in the sump is pumped into an open channel. The pump used has a maximum discharge of 150 m3 / hour and a total pump head of 11.8712 m with a pipe diameter of 6 inches.
Industrial work practice, discipline, and vocational interest on motorcycle engineering students’ work readiness Rian Mahesa; Hasan Maksum; Wagino Wagino; Heri Prabowo
JPPI (Jurnal Penelitian Pendidikan Indonesia) Vol. 12 No. 1 (2026): JPPI (Jurnal Penelitian Pendidikan Indonesia)
Publisher : Indonesian Institute for Counseling, Education and Theraphy (IICET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/020266965

Abstract

This study aimed to examine the influence of Industrial Work Practice, Discipline, and Vocational Interest on students’ work readiness in the Motorcycle Engineering Department at SMK Negeri 2 Palembang. This research employed a quantitative correlational design involving 72 twelfth-grade students selected using saturated sampling. Data were collected through Likert-scale questionnaires and analyzed using descriptive statistics, Pearson correlation, simple regression, and multiple linear regression with IBM SPSS 25. The results showed that Industrial Work Practice had a positive and significant effect on work readiness (R² = 0.171; p < 0.05), Discipline demonstrated the strongest influence (R² = 0.390; p < 0.05), and Vocational Interest also significantly affected work readiness (R² = 0.122; p < 0.05). Simultaneously, the three variables contributed 59.2% to students’ work readiness. These findings indicate that practical industrial experience, strong discipline, and vocational interest are important factors in improving vocational students’ readiness to enter the workforce.
Linking Gamification Technology, Motivation, and Flow to Student Engagement and Problem-Solving in Education Dedy Irfan; Didik Hariyanto; Heri Prabowo; Zulhendra Zulhendra; Edidas Edidas; Andhika Herayono
Journal of Applied Engineering and Technological Science (JAETS) Vol. 7 No. 2 (2026): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/a75mdr10

Abstract

The use of gamification in higher education has been widely explored as a strategy to enhance student engagement and learning outcomes. However, many empirical studies on gamified learning primarily examine direct relationships between gamification and motivational outcomes, while the underlying experiential mechanisms that connect gamification with sustained engagement and higher-order cognitive performance remain insufficiently understood. In particular, few structural modeling studies simultaneously examine the roles of motivation, flow, and presence within a unified experiential framework. This study investigates how gamification technology influences student engagement and problem-solving competence through the experiential mechanisms of motivation, flow, and presence. A quantitative research design was employed involving 100 undergraduate students enrolled in technology-oriented programs (electronics engineering education and informatics engineering education) at Universitas Negeri Padang. Data were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) to examine the proposed mediation pathways. The results indicate that gamification technology significantly influences motivation (β = 0.412, p < 0.001), flow (β = 0.508, p < 0.001), and presence (β = 0.436, p < 0.001). Among the experiential constructs, flow shows the strongest influence on student engagement (β = 0.483, p < 0.001), while the effect of motivation on engagement is not statistically significant (β = 0.097, p = 0.18). Student engagement subsequently demonstrates a significant effect on problem-solving competence (β = 0.498, p < 0.001). The structural model explains 30.6% of the variance in student engagement and 24.8% of the variance in problem-solving competence. These findings suggest that immersive experiential states, particularly flow, play an important role in shaping engagement in gamified learning environments. The study contributes to the gamification literature by proposing and empirically testing an experiential pathway model that integrates psychological immersion mechanisms with behavioral learning outcomes in technology-enhanced education.
Co-Authors Adhitya Baron Admizal Nazki Adree Octova Alfa Candra Yarsila Algifari, Arif Alifa Alifa Amrina, E. Amrina, Elita Ananda, Rizky Ananda, Sri Sovia Duha Andhika Herayono Andri Van Deni Anggi Saputra Ansosry Ansosry Ari Dwi Ananda Arief Dwi Purnomo aufa fikri abdillah Aulia Hidayat Burhamidar Aulia Mutiara C Bambang Heriyadi Bambang Heriyadi Benti Jul Sosantri Chelly Septynia Mukhti Clara Febriani Dedi Yulhendra Dedy Irfan Dian Kurnia Didik Hariyanto Dimas Agung Hermawan.HL Edidas , Edidas Eka Retno Sari Eric Sandeir Fachrur Isgianda Fadhilah Fadhilah Fadhilah Fadhilah Fahrul Fathan Fajar Rofiescha Fakhri Afif Rifa&#039;i Fariz Aditya Fathi Aulia Dhanio Zuhri Febyola Mustika Fikriansyah Ersyad Fitri Rahma Yenni Gary Aprio Gilang Oktafi Hendri Hafiz Zakwan HAR, Rusli Harizona A. Rahman Harizona Aulia Rahman Hasan Maksum Hendra Hendra Heru Premana Hutmi, Rahul Ichsan Invanni Baharuddin Ilal Fajri Setiawan Indang Dewata Jukepsa Andas Jukepsa Andas Khairunisa Putri Amalia Lulu Dwi Oktari M Adli Fikri M. Ravil Akbar Elfiantra Makertihartha, I. G. B. N. Massytah Massytah Maulana Assidikkey Iqra Monica Fadhillah Afrina Wati Muhamadinda Debeno Habibie Muhammad Abbil Raihan Muhammad Dian Muhammad Fahrurrozi Satria Muhammad Fikri Muhammad Yazi&#039;d Muhammd Thoriq Mulya Gusman Mutia Zara Nurul Anisa Ardianti Osmaini Sutra Haryati Putra Alfarizi Rahmad Thry Arswendo Rahul Hutmi Raimon Kopa Rangga Agung Pribadi Heriawan Riam Marlina A. Rian Mahesa Riandy Kurniawan RIDHO FADHIL HERNAWAN Rifaldi, M. Rijalnur Hidayatullah Riki Rinaldo Riko Maiyudi Rinaldi Suntana Rinaldo Maretto Patar Simangunsong Riri Ferdian Riri Rahmahwati Joni Risma Erwi Gusvita Rizki Agusta Yusra Rizky Ananda Rolitu, Rolitu Rudi Anarta Rudy Anarta Rully Septian Rusli HAR Saldy, Tri Gamela Subagjo Subagjo Sultan Muhammad Taufik Sumarya Sumarya Tamrin Kasim Thessania Sherry Ariani Zebua UNP, Dahroni UZD, Marcelino Wafiqah Azizah Syahputri Wagino Wagino Wahyudi Wahyudi Wike Mardatila Wina Partiwi Wuni Aprila Yoszi Mingsi Anaperta Yozsi Mingsi Aneperta Yunas ril Yunasril Yunasril Zulhendra Zulhendra