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All Journal SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Jurnal Ilmu Fisika
Andre Mahendra
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Astronomy Automotive Engineering Control & Systems Engineering Earth & Planetary Sciences Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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RANCANG BANGUN INSTALASI SISTEM PNEUMATIK PADA BENGKEL SEPEDA MOTOR KAPASITAS 5 PIT Syawaluddin, Syawaluddin; Mahendra, Andre
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 6, No 1 (2012): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

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Abstract

Dengan pertumbuhan penggunaan sepeda motor yang demikian pesatnya, maka bermunculanlah tempat-tempat perawatan sepeda motor,  mulai dari kelas pinggir jalan hingga bengkel-bengkel resmi ATPM, maka faktor-faktor yang mempengaruhi perancangan ini adalah Kebutuhan akan gerak yang dilakukan oleh sistem pneumatik, Komponen-komponen apa saja yang diperlukan, Efisiensi antara kebutuhan dengan jumlah komponen yang diperlukan. Untuk itu dirancang suatu alat dengan sistem pneumatik dan hasil perhitungan diperoleh kebutuhan udara mampat rata-rata 319,6 liter/menit, sehingga untuk memenuhi kebutuhan tersebut digunakan Kompresor Swan Model SVP(U)-203 dengan kapasitas produksi 355 liter/menit. Selain itu juga dirancang bike lift yang digunakan yang mempunyai beban maksimal 350 kg. Pemilihan ini berdasar dari berat sepeda motor yang banyak beredar di Indonesia. 
Interpretation of Subsurface Structure Based on the Magnetic Data at Semurup Geothermal Area Kerinci Maulidan, Ikhwan Fikri; Tri Suci, Ratika; Mahendra, Andre; Putra, Ardian
Jurnal Ilmu Fisika Vol 13, No 2 (2021): September 2021
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.13.2.101-108.2021

Abstract

The interpretation of subsurface structures in Semurup geothermal area has been carried out using the geomagnetic method. Data were collected in an area of 1500 m × 1400 m consisting of 160 points. The magnetic anomaly value obtained was derived from the total magnetic induction value that has been corrected by IGRF and diurnal variation, then transformed by reduction to equator and upward continuation to remove noise and separate local and regional anomalies. The results of data processing showed the total magnetic field values in the study area ranged from -1730.4 nT to 1909.0 nT. Magnetic anomalies in this study area are dominated by negative values that may be caused by demagnetised rocks (a result of hydrothermal alteration). The results of 2D modeling, it has 5 rock layers that can be classified into 3 main parts of the geothermal system The first and second layers are caprock with a depth of up to 850 meters consisting of sedimentary rock, clay, and sandstone. The third layer is indicated as a reservoir with a depth from 850 to 1450 m and is dominated by sandstone and clay alteration Hot rock in the fourth and fifth layers is dominated by basalt igneous rock and the presence of dacitic lava intrusion from the northeast of the study area at depths below 1450 m, and the Siulak fault as a outflow zone for geothermal fluid. The presence of the caprock, reservoir, hot rock, and fault zones indicates that the Semurup area has geothermal potential and is suitable for further exploration.
Co-Authors Ardian Putra Maulidan, Ikhwan Fikri Syawaluddin Syawaluddin, Syawaluddin Tri Suci, Ratika