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Journal of Engineering Science and Technology Applications
Published by CV. Insight Publisher
ISSN : -     EISSN : 29884624     DOI : https://doi.org/10.58227/jesta.v1i1
Core Subject : Engineering,
Engineering
Journal of Engineering Science and Technology Applications (JESTA) E-ISSN 2988-4624 is a peer-reviewed journal that aims to publish and disseminate original research articles on the latest developments in all fields of engineering science and technology applications. The journal publishes original papers contributing to understanding engineering science and improving technology and engineering education. The articles can be theoretical (including computational), experimental, or both. Published by Insight Publisher located in Makassar City, Indonesia. JESTA invites researchers, investigators, and students to contribute their studies and research by submitting original articles and not simultaneously submitting articles to other journals or conferences. The journal covers topics related to engineering fields in bioelectrical engineering, electronic engineering, informatics engineering, computer science, mechatronics engineering, mechanical engineering, automotive engineering, construction engineering, industrial engineering, chemical engineering, mining engineering, environmental engineering, engineering, applied technology, and other engineering fields.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 2 No. 1 (2024): Journal of Engineering Science and Technology Applications" : 5 Documents clear
Analisis Dampak Kenaikan Suhu Terhadap Penurunan Kualitas Batubara Muara Bengalun PT Mitrabara Adiperdana Tbk: Analysis of the Impact of Temperature Increase on the Decrease in Coal Quality of Bengalun Muara PT Mitrabara Adiperdana Tbk Bakri, Suriyanto; Thamsi, Alam Budiman; Muhdi, Irawan
Journal of Engineering Science and Technology Applications Vol. 2 No. 1 (2024): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i1.194

Abstract

Umumnya, batubara di Indonesia dimanfaatkan sebagai bahan bakar yang biasa disebut batubara uap atau sebagai bahan baku industri baja. Meningkatnya permintaan bahan bakar batubara untuk industri menyebabkan PT Mitrabara Adiperdana Tbk., terus menerus meningkatkan produksinya. Batubara yang dihasilkan dari front penambangan pada umumnya tidak langsung dikirim ke konsumen sehingga batubara tersebut harus ditumpuk di tempat penumpukan yang disebut dengan istilah stockpile (Area timbunan). Permasalahan utama yang dihadapi PT Mitrabara Adiperdana Tbk., dalam penumpukan batubara pada stockpile adalah terjadinya peningkatan temperatur. Oleh sebab itu, perlu dilakukan analisis dampak apa saja yang terjadi pada area timbunan yang mempengaruhi kualitas batubara pada perusahaan ini. Metode penelitian diawali dengan mencari literatur laporan penelitian terdahulu dan data lainnya. Selanjutnya dilakukan observasi dan analisis kondisi di lapangan. Lokasi survey dilakukan di area PT Mitrabara Adiperdana Tbk., Kabupaten Malinau Kalimantan Utara. Pengambilan sampel dilakukan pada stockpile Muara Bengalon. Tahap ketiga dilakukan analisis data dalam menganalisis kualitas batubara di PT Mitrabara Adiperdana. Hasil penelitian menunjukkan bahwa terjadi peningkatan suhu batubara di stockpile. Pada pagi hari, suhu batubara berkisar antara 26,50ºC hingga 44,71ºC, sedangkan pada siang hari suhu meningkat menjadi 30,50ºC hingga 50,85ºC. Peningkatan suhu ini berdampak pada penurunan kualitas batubara, yang berpotensi menyebabkan swabakar
Analisis Dampak Aktivitas Industri Minyak Dan Gas Terhadap Sektor Ekonomi Di Kabupaten Seram Bagian Timur: Analysis of the Impact of Oil and Gas Industry Activities on the Economic Sector in East Seram Regency Asmiani, Nur; Rahareng, Sutriani; Thamsi, Alam Budiman; Aswadi, Muhammad
Journal of Engineering Science and Technology Applications Vol. 2 No. 1 (2024): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i1.200

Abstract

PT Kalrez Petroleum Seram Ltd is a company engaged in the oil and gas mining sector. The company started operations in 2001 and is part of South Sea Petroleum Holdings Ltd, based in Hong Kong. This study aims to analyze the base sectors that can support economic growth and examine the potential of the mining and quarrying sector in supporting economic development in the region. The data used in this study is secondary data obtained from various related agencies, one of which is the Central Statistics Agency (BPS). The data analyzed includes the Gross Regional Domestic Product (GDP) of Eastern Seram Regency and Maluku Province based on constant prices by business field in the 2011-2020 period. This study uses Location Quotient (LQ) and shift-share analysis methods to identify the base sector and analyze the dynamics of economic growth. The results of the analysis show that the base sectors in this area include the fisheries, forestry, and agriculture sectors with an LQ value of 1.06; mining and quarrying sector with an LQ value of 11.37; real estate services with an LQ value of 1.13; and health services and social activities with an LQ value of 1.07. However, the growth of the value of GDP in the mining sector during the 2011-2020 period experienced a significant decrease, namely -6,323.94 million rupiah. Other growth indicators, namely the Proportional Growth Contribution (KPP) of -0.22 and the Regional Growth Contribution (KPPW) of -0.14, also show that the mining and quarrying sector is relatively slow in growth, although it remains competitive at the regional level. The decline in the value of KPP and KPPW with a negative sign (-) in the mining and quarrying sector confirms that this sector is experiencing suboptimal growth. Although its competitiveness is relatively still there, this persistent decline indicates the need for more attention to improving efficiency and innovation within the sector. This is important so that the mining and quarrying sector can contribute more to improving the regional economy in a sustainable manner. To support the development of this sector, strategic policies, investment in technology, and synergy between the government and industry players are needed to overcome existing challenges
Identifikasi Bahaya Dan Pengendalian Resiko di Area Produksi Penambangan: Hazard Identification And Risk Control in Mining Production Areas Yusril, Yusril
Journal of Engineering Science and Technology Applications Vol. 2 No. 1 (2024): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i1.201

Abstract

Mining companies have provided a level of security related to OHS, but there are still work accidents, occupational diseases, fires, explosions, avalanches, and the environment. Thei causei of worki accidentsi is determined byi thei actionsi ofi peoplei whoi doi noticomplyi withi worki safetyi (unsafei actions) and environmental conditions (unsafe conditions). Thei purposei of thisi studyi is to idetermine the potentiali hazardsi in mining activities and control controls in mining activities. This researchi iwas conductedi at PT Bumi Sentosa Jaya, locatedi ini Boedingi iVillage, Lasoloi Islandsi iDistrict, iNorth Konawei iRegency, Southeasti Sulawesii iProvince. The research was conducted usingi the HIRARCi (Hazardi iIdentification, Riski Assessmenti, and Riski iControl) imethod. Data on hazardi and riski controli are processed using the semi-quantitative.The findings were 20 potential hazards, with an incident rating obtained Extremely low 0%, Priority 20%, Medium 65%, Acceptable 15%After controlling the risk, the residual risk obtained is 40%. 60% is acceptable. Control is carried out by hierarchical control, consisting of engineering, administrative, work practices, and control methods.
Kajian Revegetasi Pada Aktivitas Reklamasi Lahan Bekas Tambang Batubara: Revegetation Study on Reclamation Activities of Former Coal Mine Land Nurwaskito, Arif; Akbar, Muhammad; Thamsi, Alam Budiman; Aswadi, Muhammad
Journal of Engineering Science and Technology Applications Vol. 2 No. 1 (2024): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i1.202

Abstract

Before carrying out mining, it must take into account the impact of mining activities, namely changes in the landscape, it is necessary to re-vegetate and replant. This research was conducted to find out and provide a solution to the problem of revegetation failure that often occurs to achieve revegetation success and to identify and improve the factors that cause many dead plants. The location of this research was conducted in Bantuas Village, Palarang District, Samarinda Municipality, East Kalimantan Province, the data collection technique was carried out by direct collection in the field by taking data on plant types and soil pH, data processing was carried out by processing the collected data by entering data into in excel software aims to make the data neatly arranged and the data analysis method used is qualitative. There are several factors that cause plants to die, namely due to an error in selecting plant species and not paying attention to acidic soil pH. The way to overcome this is by choosing plant types that are suitable for the revegetation area and using dolomite to neutralize acidic soil pH and to achieve success it is necessary to pay attention to plant types, maintenance, planting preparation, monitoring.
Karakteristik Mineral Pembawa Pasir Besi Daerah Pantai Pancana Kabupaten Barru Provinsi Sulawesi Selatan: Characteristics of Iron Sand Carrying Minerals in Pancana Beach Area, Barru Regency, South Sulawesi Province Zulfadli, Zulfadli; Nawir, Alfian; Harwan, Harwan; Bakri, Suriyanto
Journal of Engineering Science and Technology Applications Vol. 2 No. 1 (2024): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i1.203

Abstract

Iron sand is one of the industrial minerals. The utilization of iron sand in Indonesia is still limited to being used as a raw material for cement factories in the manufacture of concrete. Iron is given the symbol (Fe) in the periodic table's chemical element. The purpose of this study was to determine the mineral properties of iron sand and the chemical characteristics of iron sand. The research location is in the Barru district in the province of South Sulawesi, Indonesia. This research method uses XRD and XRF analysis methods. From the results of the XRD analysis, it was found that 2 minerals carrying iron sand, including the minerals Magnetite and Hematite with the percentage content of these minerals, are. Magnetite mineral (Fe3O4) 9,3% and Hematite mineral (Fe2O3) 0,3%. The results of XRF analysis show that the chemical composition contained in F2O3 minerals, containing oxide and hydroxide elements Fe, O, and Oxide, is a chemical compound that contains at least one oxygen atom and at least one other element.

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