PT DSSP Power Sumsel merupakan perusahaan swasta yang mengelola PLTU Sumsel 5. Penggunaan batubara sebagai bahan bakar pada PLTU ini tentu tidak lepas dari penghasil emisi, salah satunya adalah emisi SO2. Emisi ini dihasilkan dari kandungan sulfur yang ada di dalam batubara dan mengalami proses oksidasi. Penelitian ini bertujuan untuk menganalisis hubungan antara kandungan sulfur dalam batubara…
PT. Pertamina RU III Plaju merupakan salah satu perusahaan pengolahan minyak bumi yang berhasil dalam memproduksi hasil olahan minyak mentah yang mampu memenuhi kebutuhan energi maupun industri. Dalam kegiatan pengolahan dibutuhkan analisis minyak mentah yaitu berupa data sifat fisik maupun kimia dari minyak mentah tersebut. Pada PT. Pertamina RU III Plaju proses pengolahan pada minyak mentah l…
This study aims to test the performance of rafts using electrical energy with solar panels as a source of battery energy. This research was conducted at the Faculty of Agriculture, Indralaya Campus, Sriwijaya University. With details of the place of the Machine and Workshop Laboratory and the Soil Science Department Pool, from October 2023 to November 2023. This research used an experimental me…
Blasting is one of method to loose interburden layer B2 - C in pit Tambang air laya selatan used by PT Bukit Asam (Persero) Tbk. One that must be controlled and be considered in a blasting is powder factor. Optimal Powder factor that will produce effective and efficient blasting and increase productivity of digging and loading equipment. Target productivity of Hydraulic Excavator Komatsu PC 200…
In a series of exploration and exploitation of oil and gas, well log (Well Logging) plays an important role to determine the condition of subsurface formations such as petrophysical properties of rock and fluid types which include porosity, permeability, and water saturation. Study of petrophysical properties, and potential hydrocarbon fluid types can be done by qualitative analysis (reading lo…
PT. Agincourt Resources is one of the private mining company with minerals in the form of gold ore in South Tapanuli of North Sumatera Province, which has been operational since the year 2012 with licences covering 1639 Ha. The mining system that implemented is a system of mine open with open pit mining method in the conventional combination of excavator backhoe-dumptruck (CAT 385, CAT 740). Pl…
Indonesia saat ini mendominasi penggunaan energi yang bergantung pada sumber energi fosil yang ketersediannya terbatas. Menurut laporan Kementrian ESDM pada tahun 2022, rasio elektrifikasi nasional telah mencapai 99,63% yang artinya terdapat 0,37% rumah tangga di Indonesia yang belum mendapatkan akses layanan listrik. Hal ini menjadi tantangan dalam pemerataan layanan listrik. Penelitian ini me…
Renewable energy is an alternative source that serves as a solution to energy limitations and an effort to minimize pollution and emissions from several non-renewable energy sources, such as oil-based fuels, coal, and others. Solar energy is one of the most promising renewable energy options, especially in tropical regions like Indonesia. Photovoltaic (PV) or solar panels are media that can be …
One of the major obstacles faced during the operation of solar panels is overheating due to excessive radiation from the sun and high ambient temperature. To overcome the temperature rise of solar panels and increase their efficiency, cooling of solar panels is required. The use of Phase Change Material (PCM) in the form of beeswax as a passive cooling method for solar panels can be implemented…
On the West Banko mine, mining activities carried out using conventional systems with a combination of excavator loading (backhoe) and transportation means (truck) so as the mine advances will form a large basin. In the rainy season the water will inundate the mining front that will lead to the cessation of coal mining operations. To cope with the incoming water would require pumps the number a…
PT. Muara Alam Sejahtera is a company which engaged in the coal mining industry that its activity using open pit mining system. Puddles on the mining front will be potentially formed because mine condition that forms downward basin. Meanwhile, based on a three-year mining plan until 2016, the company will expand the working surface and deepen the pit bottom elevation from 20 m dpll to 0 m dpi w…
Target produksi overburden dan batubara yang telah direncanakan oleh PT. Bukit Asam (Persero) Tbk Tanjung Enim pada bulan September 2013 pada Pit 3 Banko Barat sebesar 720.000 bcm/bulan dan batubara sebesar 300.000 ton/bulan. Permasalahan yang terjadi adalah bagaimana produktivitas alat mekanis untuk pengupasan tanah penutup dan penambangan batubara dan berapakah biaya dari pengupasan tanah pen…
This research focuses on controlling the corrosion rate of St41 steel, which cannot be avoided, through variations in quenching media by adding apple cider vinegar as a corrosive agent. This research aims to extend the life of the workpiece by identifying the impact of using different quenching media on the corrosion rate. The method used is the experimental method, this method is used to find …
This study aims to determine the effect of variations in the weld and the old coconut water cooling media on the tensile strength of ST 41 steel in SMAW welding. The study used an experimental method that includes the welding process, rapid cooling, and then tensile testing. The cooling media is a medium used to lower the temperature of the metal after the heat treatment process. Cooling carrie…
FARID AL PASYAH Performances Test Of Hand Tractor On The Differences In Plowing Depth, Form Of Plovehead, And Forward Speed To Travel Time (Supervised by R. MURSIDI). This study aims to test the performance of hand tractor are used in dry field soil processing with several supporting factors such as plowing depth, form of cutting edge, and forward speed to travel time. This research was carried…
Air merupakan unsur utama bagi kehidupan manusia dan makhluk hidup lainnya. Pada waktu tertentu di beberapa daerah sering teijadi kekurangan air,bahkan ada beberapa daerah yang dikenal sebagai daerah sulit air. Salah satu upaya untuk penyediaan air adalah dengan memanfaatkan distilator tenaga surya (solar energy). Pemanfaatan tenaga surya untuk destilasi (penyulingan) air laut menjadi air tawar…
Penggunaan dan pemanfaatan serat alam pada saat ini sudah semakin berkembang, khususnya material komposit. Material komposit sendiri tersusun atas dua material atau lebih yang berbeda sehingga perpaduan dari material tersebut diharapkan dapat membentuk material baru yang memiliki sifat-sifat khusus, dimana salah satu dari material gabungan tersebut dinamakan penguat dan material lainnya disebut…
Air merupakan sumber energi yang murah dan relatif mudah didapat. Pada air terdapat atau tersimpan energi potensial dan energi kinetik. Energi potensial merupakan energi yang dimiliki oleh air jatuh, sedangkan energi kinetik air merupakan energi yang tersimpan pada air yang mengalir. Kincir air merupakan alat yang dapat digunakan untuk memanfaatkan energi kinetik air. Kincir air merupakan peral…
This study aims to determine the practicality and feasibility of learning media for corrective maintenance of universal milling machines based on the Appsheet application in a mechanical engineering education laboratory. The type of research used is research and development using the 4D model, namely Define, Design, Development and Disseminate. The product was tested on Lecturers, Heads of Labo…
Composite is a combination of two or more different materials to obtain materials with physical properties and mechanical properties better than any of its constituent components. This study aims to analyze the mechanical properties and physical properties of the composite polyester reinforced silica carbides particles are included in the Composite particles mechanical properties and physical p…
Pabrik pembuatan Propil Asetat dengan kapasitas produksi 190.000 ton/tahun direncanakan akan berdiri pada tahun 2030 di Jalan Asia Raya, Citangkil, Kota Cilegon, Provinsi Banten dengan luas 12 ha. Propil Asetat pada pabrik ini disintesis dari bahan baku Asam Asetat dan Propanol menggunakan katalis tanah liat putih yang dimodifikasi dengan asam p-toluenesulfonat dalam Multitubular Fixed bed reac…
Pabrik pembuatan Propil Asetat dengan kapasitas produksi 190.000 ton/tahun direncanakan akan berdiri pada tahun 2030 di Jalan Asia Raya, Citangkil, Kota Cilegon, Provinsi Banten dengan luas 12 ha. Propil Asetat pada pabrik ini disintesis dari bahan baku Asam Asetat dan Propanol menggunakan katalis tanah liat putih yang dimodifikasi dengan asam p-toluenesulfonat dalam Multitubular Fixed bed reac…
Planning of the railway bridges construction usually use finite element method . In practice , the finite element method is applied by using a lot of Software or Computer programs . One of the Software used is Solid Works 2012 and COSMOSM 2012 (2010/290). Because SolidWorks 2012 and COSMOSM 2012 (2010/290) Software has more advantages compared with the other programs and can be analyzed with mo…
Gas power plant is one of power plant that widely used in Indonesia. Main parts of this system is a gas power plant compressor, combustor, and gas turbine. In this power plant used the latest type of technology TM-2500 where the gas turbine installed at the 4-wheeled trailer that uses LM2500 turbine type, this gas turbine is well known as a gas turbine which has good efficiency, because the per…
Coconut oil Biodiesel is an altemative fuel made from vegetable fat that is eco friendly and can reduccs fuel consumption and increases the good value of fuel, also decreases the exhaust emissions in diesel engine. Observation and research of the coconut biodiesel addition in diesel fuel toward machine prestige and exhaust emissions have been done. The parameters that have been researched are t…
The selection process of switching to the materials used greatly affect the yield and quality of the joint area. To avoid errors in the selection process of joint the material used is understanding the basics of grafting. In this study the method joint used is brazed and solder e d on Steel and brass. And testing is performed hardness test, macro structure, NDT, microstructure test and bending …
Generator arus searah merupakan sumber energi alternatif untuk pengisian ulang ke baterai mobil listrik, yaitu dengan memanfaatkan energi mekanik dari bagian yang berputar dalam sistem transmisi mobil listrik yang akan memutar generator. Desain bagian bodi rotornya dengan menggunakan cairan resin yang dituangkan kedalam sebuah cetakan kemudian tunggu hingga resin mengeras kemudian letakkan 12 b…
The process of evaporative cooling occurs when moisture is added to air which has a relative humidity below 100 %. The greater the temperature difference between the dry bulb and wet bulb temperature of the air , the greater the drop in temperature that can be achieved. The use of an electric fan to blow air on the surface of wet media ( pad ) is a development of the concept of evaporative cool…
Proses gerinda rata adalah proses pengerjaan akhir untuk penghalusan benda kerja dimana bagian yang digerinda adalah permukaan benda keija atau bidang datar saja. Kondisi pemesinan yang meliputi variasi kedalaman pemakanan(a), dan variasi kecepatan pemakanan(Vf). Pada penelitian ini akan dilihat pengaruh kondisi pemesinan terhadap energi pemesinan dan kekasaran permukaan. Material yang digunaka…