Electronic Theses and Dissertation
Universitas Syiah Kuala
NULL
ANALISIS PENGARUH KEMIRINGAN JALAN TERHADAP KONSUMSI BAHAN BAKAR PADA JALAN ANGKUT DI PT AGINCOURT RESOURCES
Pengarang
Inggrid Syagori Pane - Personal Name;
Dosen Pembimbing
Nomor Pokok Mahasiswa
1504108010003
Fakultas & Prodi
Fakultas Teknik / Teknik Pertambangan (S1) / PDDIKTI : 31201
Subject
Kata Kunci
Penerbit
Banda Aceh : Universitas Syiah Kuala., 2019
Bahasa
Indonesia
No Classification
-
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ABSTRAK
Kegiatan penambangan material (ore) di PT Agincourt Resources menggunakan metode tambang terbuka sistem open pit menggunakan kombinasi excavator tipe CAT 390D dan Articulated Dump Truck 745C. Operasi pengangkutan aktual pada Bulan Maret dan April 2019 memerlukan bahan bakar sebesar 45 liter/jam dengan produksi 65,46 bcm/jam dan fuel ratio sebesar 0,685 liter/bcm. Penelitian ini dipusatkan kepada pengaruh kemiringan jalan (grade) terhadap konsumsi bahan bakar. Hasil perbandingan data aktual dan teori menyatakan hubungan konsumsi bahan bakar dan kemiringan jalan berbanding lurus. Keterbatasan rimpull mesin dump truck saat mengatasi tahanan kemiringan memerlukan putaran mesin yang tinggi pada gear rendah menyebabkan konsumsi bahan bakar yang besar. Hasil pengamatan kemiringan jalan angkut sepanjang 937,12 meter dengan jumlah 14 segmen jalan berdasarkan grade jalan terendah pada segmen P1-P2 sebesar 5% dan grade jalan tertinggi pada segmen P12–P13 sebesar 13%. Hasil perhitungan berdasarkan rimpull dan waktu edar (cycle time) diperoleh pemakaian bahan bakar sebanyak 7,37 liter/ritase dimana pada grade 5% membutuhkan bahan bakar sebesar 0,10 liter dan grade 13% membutuhkan bahan bakar sebesar 0,27 liter dengan jarak 67 meter. Pemakaian bahan bakar untuk pengangkutan selama 1 (satu) jam sebesar 44,95 liter dengan produksi sebesar 99,79 bcm/jam dan fuel ratio sebesar 0,45 liter/bcm terjadi penghematan sebesar 0,235 liter/bcm.
Kata kunci: dump truck, fuel ratio, kemiringan jalan, material ore, rimpull, dan produktifitas
ABSTRACT
Gold mining activities at PT Agincourt Resources uses open pit mining method with combination system of excavator CAT 390D and Articulated dump truck 745 C. Actual Hauling operation on march and april 2019 needed fuel consumption 45 liters/hours with productivity 65,46 bcm/hours and fuel ratio 0,685 liters/bcm. This research was focus on the effect of grade on fuel consumption. The comparison results of the actual and the theory data state that the relationship between fuel consumptions and grade was perpendicular. The limitedness rimpull of a dump truck engine when overcome grade resistance requires a high RPM at a low gear caused a large fuel consumption. The observation's result of the haul road grade along 937.12 m with 14 segments based on smallest grade on P1-P2 segment of 5% and the highest grade on P12-P13 segment of 13%. The calculation results based on rimpull and cycle time, the use of fuel was 7.37 liters /ritase where in grade 5% requires fuel of 0.10 liters and grade 13% requires fuel of 0.27 liters with a distance of 67 meters. The use of fuel consumption for transportation (hauling) in one hour is 44,95 liters with a productivity of 99.79 bcm/hours and a fuel ratio of 0.45 liters/bcm and have resulted in a saving of 0.235 liters/bcm.
Keywords: dump truck, fuel ratio, grade, ore material, rimpull, and productivity
ABSTRACT
Gold mining activities at PT Agincourt Resources uses open pit mining method with combination system of excavator CAT 390D and Articulated dump truck 745 C. Actual Hauling operation on march and april 2019 needed fuel consumption 45 liters/hours with productivity 65,46 bcm/hours and fuel ratio 0,685 liters/bcm. This research was focus on the effect of grade on fuel consumption. The comparison results of the actual and the theory data state that the relationship between fuel consumptions and grade was perpendicular. The limitedness rimpull of a dump truck engine when overcome grade resistance requires a high RPM at a low gear caused a large fuel consumption. The observation's result of the haul road grade along 937.12 m with 14 segments based on smallest grade on P1-P2 segment of 5% and the highest grade on P12-P13 segment of 13%. The calculation results based on rimpull and cycle time, the use of fuel was 7.37 liters /ritase where in grade 5% requires fuel of 0.10 liters and grade 13% requires fuel of 0.27 liters with a distance of 67 meters. The use of fuel consumption for transportation (hauling) in one hour is 44,95 liters with a productivity of 99.79 bcm/hours and a fuel ratio of 0.45 liters/bcm and have resulted in a saving of 0.235 liters/bcm.
Keywords: dump truck, fuel ratio, grade, ore material, rimpull, and productivity
Tidak Tersedia Deskripsi
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