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JTT: Journal Teknik Dan Teknologi
Published by Universitas Pejuang Republik Indonesia
ISSN : -     EISSN : 31106005     DOI : -
Core Subject : Engineering,
Engineering
JTT: Journal Teknik Dan Teknologi : Berperan dalam merancang, menganalisis, dan memelihara sistem mekanik seperti alat berat, mesin bor, sistem transportasi tambang, dan peralatan produksi. Teknik Mesin memberikan dasar keteknikan untuk memastikan efisiensi kerja alat serta ketahanan terhadap tekanan dan keausan. Fokus pada eksplorasi, ekstraksi, dan pengolahan sumber daya mineral. Dalam kolaborasi ini, Teknik Pertambangan menyediakan data kondisi medan dan kebutuhan operasional di lapangan tambang untuk menyesuaikan desain alat dan proses kerja agar sesuai dengan karakteristik geologi dan keselamatan kerja. Menjadi penghubung sistem mekanik dan operasi tambang dengan teknologi digital, melalui pengembangan perangkat lunak, sistem berbasis IoT, pemrosesan data real-time, serta penerapan kecerdasan buatan dan sistem pakar untuk monitoring, prediksi kerusakan, dan optimasi proses tambang.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol. 2 No. 01 (2025): Desember" : 5 Documents clear
Pengaruh Ukuran Venturi Karburator Terhadap Kinerja Mesin Honda Supra X Muh Fadli; Risa Bernadip Umar; Ramli
Journal Teknik Dan Teknologi  Vol. 2 No. 01 (2025): Desember
Publisher : Journal Teknik Dan Teknologi 

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Abstract

The use of motorcycles is currently increasing very rapidly. The impact is that fuel consumption is also increasing. Motorcycle technology is increasingly advanced and developing, from 2-stroke engines to 4-stroke engines, from carburetor fuel systems to injection. Motorcycles still use 2-stroke engines and carburetor systems. Inside the carburetor there is a venturi hole/pipe which has a very large effect on engine speed and fuel consumption according to the size of the venturi. From this background, an analysis of the effect of venturi size on fuel consumption can be carried out. The study was conducted with variations in carburetor venturi sizes of 18.3 mm, 18.8 mm and 22.8 mm with an engine speed of 4000 rpm (54 km / h) and premium fuel. Testing was carried out by measuring and recording the time of fuel consumption, then analyzing the standard venturi, enlarging and reducing the venturi diameter. The results of each carburetor venturi diameter on fuel consumption are each 18.3 mm venturi is 8.48 minutes, on the 18.8 mm venturi (standard) is 7.14 minutes and on the 22.8 mm venturi is 6.15 minutes. So that the reduction in the diameter of the carburetor venturi can reduce fuel consumption by 18.77% without reducing vehicle performance.
ANALISIS PROXIMATE UNTUK MENENTUKAN KUALITAS BATUBARA DI PT.GEOSERVICES KECAMATAN TANJUNG REDEB KABUPATEN BERAU PROVINSI KALIMANTAN TIMUR Elta rani kalimbuang; Hendra Sani; Kasmira
Journal Teknik Dan Teknologi  Vol. 2 No. 01 (2025): Desember
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Abstract

The purpose of this study to determine the quality of coal in terms of proxymate analysis of the results of the analysis of samples by using the ISO standard and ASTM. The Oversight data collection was done by testing samples of 6 samples in the PT.Geoservices laboratory. Based on the results of the testing showed that the testing moisture at sample using standard ASTM showed 14:09%, 13:51%, 10:22%, 13.83%, 14:11%, 14:11%, 14:01% and for ISO 13:06%, 13:00%, 12.96 %, 12.98% 12.90%, 13.08%, 12.94%. Based on data analysis, can be Conculated that the data in the analysis is Coal Sub-Bituminous ranged between 10% - 25%. Percentage of ash content of the test results in laboratory obtained percentage for the standard AST M is 7:52% 4:46%, 33.44%, 14:56% 4:34% 6:21% and to ISO 5:58% 5:48% 5:56%, 5.62% 5:56% , 5.64%. the percentage of volatile matter of the analysis results in laboratory obtained percentage for AST M standard is 41.11%, 44.45%, 30.81%, 39 .71%, 39.71%, 43.84%, 43.79% d late to the ISO standards are 37.10%, 37.32%, 37.00%, 37.16%, 36.92%, 37.19% fixed carbon grade not analyzed in laboratory but obtained from the calculation of indirect in getting the percentage for AST M 37.28%, 37.58% 25.53%, 31.90%, 37.71%, 35.99% and for ISO namely 44.26%, 44.20%, 44.46%, 44.32%, 44.44%, 44.23%. On Sample Coal studied in PT.Geoservices entered in the class of Coal Sub-Bituminous based classification of coal according to ASTM Standards, and Deserves to be marketed depending demand client.
EVALUASI DIMENSI SETTLING POND 6 BLOK KEUNO PADA PT. BUKIT MAKMUR INSTINDO NIKELTAMA (BUMANIK) KECAMATAN PETASIA TIMUR KABUPATEN MOROWALI UTARA PROVINSI SULAWESI TENGAH Supriandi; Gina Audina P Alhabsyi; Ruth Bunga R
Journal Teknik Dan Teknologi  Vol. 2 No. 01 (2025): Desember
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Abstract

The purpose of this study was to determine the dominance size of the settling pond, calculate the discharge and the runoff volume of the Keuno Block B Pit. The purpose of making this settling pond is to accommodate runoff water flow that will enter the mining area in Pit B of the Keuno Block. The research method used is descriptive research to provide information about facts and phenomena that occur at the research site. Data was collected through field observations, interviews, and document studies. Association obtained 1) Water entering the Pit B Block of Keuno in the form of runoff water with a discharge of 2,72 m3 / sec at DTH, 0,609 m3 / sec at DTH II, and 1,081 m3 / sec at DTH III 1,069 m3 / sec. 2) From the results of runoff discharge calculations, the dimensions of the first settling pond plan are made: Water Discharge (Q) = 2,72 m3 / sec, Pool Volume (V) = 1000 m3, Pool Length I ( P) = 35 m, Pool Length II (P) 30 m, Pool length III (P) 25 m. Pool side width I (L) = 24 m, Pool side width II (L) 22 m, Pool side width (L) = 20 m. Pool Depth (d) = 5 m.
Deflector; Efficiency; 180° Twist Angle; Savonius Turbine; Wind Energy; Timotius Pabura; Ramli Ramli; Aslim Muda Aziz; M Ilham Nur; Risa B Umar; Haslinda
Journal Teknik Dan Teknologi  Vol. 2 No. 01 (2025): Desember
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Abstract

Savonius wind turbines are a type of vertical axis wind turbine that is widely developed because it is able to operate at low wind speeds and has a simple construction. However, the performance of the Savonius turbine is relatively low due to the negative torque in the returning blade blade. One method that can be applied to improve turbine performance is the use of deflectors as wind flow directers. This study aims to analyze the effect of deflector angle variations on the performance of a two-blade twist type Savonius wind turbine with a twist angle of 180°. The research method used is an experimental method with testing using a wind tunnel. The variations of deflector angles used include no deflector, 30°, 45°, and 60°. The performance parameters analyzed include rotational speed, torque, turbine power, tip speed ratio, and turbine efficiency. The results of the study show that the addition of a deflector has a significant effect on improving turbine performance. The deflector angle of 60° delivers the best performance with the highest efficiency value compared to other variations. This is due to the ability of the deflector to direct the wind flow more optimally to the advancing blade blade and reduce the negative torque on the returning blade.
Perhitungan Cadangan Dan Stripping Ratio Dengan Menggunakan Software Surpac 6.3 Pada Pit Padawa-1 Di Pt. Pam Mineral Tbk Desa Laroenae Kecamatan Bungku Pesisir Kabupaten Morowali Provinsi Sulawesi Tengah Litho Aron Palangga; Hasni Kasim; Hendra Sani
Journal Teknik Dan Teknologi  Vol. 2 No. 01 (2025): Desember
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Abstract

PT. PAM Mineral Tbk is one of the companies with Production Operation Mining Business License Area (IUP-OP) with an area of 106 Ha. To carry out the mining process, mine planning is first carried out so that it can be considered with the existing capacity and avoid losses until the mining process takes place. Due to the nature of the relatively uneven distribution of ore content. One of them is making a pit design as a reference and guide before the mining process occurs. In designing a mining pit, it is intended to calculate the volume of reserves, Over Burden, and stripping ratio , so that a mining pit can be designed that takes into account aspects of quality, capacity, economy, environment and safety factors

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