PT. Pupuk Sriwijaya is one of the suppliers of fertilizer factories in Indonesia. The factory is building a new power plant that is Steam Turbine Generator (STG) and Coal Boiler for old plants is not enough to supply electricity to the new factory. In a power plant project, one of the most important components is the foundation of the machine. The foundation of the machine is one kind of founda…
PT. Pupuk Sriwidjaja (PUSRI) revitalized PUSRI IIB manuf'acture to improve its productivity to fulfill the necessity of fertilizer in Indonesia. In response towards the situation, it requires new electricity instal lat ion. In other words, PT. Pusri built Steam Turbine Generator (STG) and coal boiler. STG and coal boiler are steam electricity which used coal as the main resource of STG and coal…
Cataract is the leading cause of blindness, including in Indonesia, with 1.6 million reported cases. Early detection is crucial, yet access to eye healthcare remains limited, especially in remote areas, and is further hindered by economic constraints and a shortage of ophthalmologists. This study develops a cataract classification model based on fundus images using VGG-16 and VGG-19 architectur…
Soft clay is a type of clay that is classified into types of land thai has a small shear forces, huge congestion, small soil permeability and has a low bearing capacity than other clays. This can cause damage to the struclures that are on it. Therefore, careful planning is required in the manufacture of a vehicle in the area with the characteristics of the soil. Therefore, the soil improvement …
In the structure of X at field PT. Pertamina EP Asset 1 Jambi has a contract with the one of government company to get rate gas in the first month until sixth month is around 1-1.5 mmscfd and fot the next month laters changed into 2 - 2.5 mmscfd . In Field PT. Pertamina EP Asset 1 Jambi has two gas well. The one of gas well i s suspended and the other has already production. For the Rate gas ar…
Aggregate is an asphalt mixture material that becomes one of the main powerfactor in pavement. Therefore, a laboratoiy study of the characteristics of flexible pavement using aggregate river taken from Lahat, mountain rock taken from Bukit Munggu, Tanjung Enim and Coastal stones taken from Ketaping Beach, Bengkulu as a rough aggregate material, as well as the influence and Comparison of Marshal…
As time goes by, Palembang city has many changes include of the land use. When the rainy season comes, residents of Palembang feel uncomfortable with the flood threat. Moreover whom live at flood-prone area like in Macan Lindungan. One of the solution to reduce the flood is making a retention pond constuction. Therefore, the writer interest to do a study about retention pond plan with spillway …
Milling machining process is the process of slicing the workpiece with the cutting lool lo cut plural rolaling eye. In the metal cutting process, friction between the workpiece with a chisel will produce heat, so the temperature chisel chisel especially active field will be very high. This will result in tool wear so that product qualily will decline, reducing tool wear rate is usually given co…
Energy issues to human survival is a major problem faced by almost all countries in the world. The depletion of oil reserves requires us to use alternative energy or renewable energy. One of them by maximizing the utilization of gas. To operate the engine fuel oil to gas fuel needs to be made an energy conversion devices such as gas converter kit that is used as the lowering of gas pressure at …
Technology has developed so much in these days. It has replaced the needs of manpower in operating the machines, an example of that is the utilization of robots. Nowadays, the development of robotics technology is able to increase the quality and quantity of production in various industries. One way to improve the performance is by adding a sensor into the device. For example, in industrial and…
Bearing an extremely important component in an engine component, which is where the form makes it easy to bearing performance, refine, and drown out all the performance of the performance of the machine where the movement occurred, ie the movement back and forth. Corrosion is a reaction between the metal compound with substances - around it, in the form of water with air, saline solution. Chemi…
Soil is one of construction strength which supporting structural base. Good soil is a soil that capable of sustaining the existing load on top of it without losses were so great. Soil characteristic on site will be considerate in construction planning. Soil in Gasing, Banyuasin Regency from research of Andhika (2015) is clay. This clay-sized sieve 200 82,56%, liquid limit (LL) = 68%, plastic li…
Komposit merupakan suatu material yang terbentuk dari kombinasi antara dua atau lebih material pembentuk dan memiliki sifat yang berbeda dari komponen pembentuknya. Pemakaian komposit telah berkembang pesat karena komposit memiliki keunggulan tersendiri dibandingkan bahan alternatif lainnya seperti bahan komposit lebih kuat, tahan terhadap korosi, lebih ekonomis dan sebagainya. Filler merupakan…
Flooding problems often occur in Indonesia's capital and surrounding areas. Just as in Palembang, South Sumatra Province which is a metropolitan city with a myriad of problems one of them like a flood. One of the causes of the flooding or water logging may include changes in land use where the total population is increasing. If the solution for problems like this can’t be found, then there wi…
In a cement factory, one of the supporting building is the cement silo. Cement silo is an industrial buildingthat used as the storage of bulk cement where every silo are different for each type of cement. Beacuse of cement are very important in this period, PT. Semen Padang going to build more factory to improve theircement production, and the name of the new factory is Indarung VI that build i…
The purpose of this research is to evaluate the influence of heat treatment (annealing) in electric furnace and in crucible fire furnace to mechanical properties of melted aluminium beverage can with waste lubricating as fuel oil in direct burning method. Where the highest value of ultimate tension is in speciment with no heat treatment with 13,201 kgf/mm², and the lowest value of ultimate ten…
To get a good quality weld connection, please note the design of weld, the way of welding, construction as well as the usefulness of the material to be welded. Medium carbon steel is use in wrench tools, ships, bridges and trains. In this research, joint method use is welding smaw use elektrode E7018 but variations of current electrical welding different, namely 90A, 120A and 150A. And performe…
Efforts to fulfill the increasing need for large power required is always an effort to increase the efficiency of one of the efficient use of fuel and the impact on environmental pollution, in particular the efficiency of power generation. Enterprises in this efficiency improvement is done by a variety of things including increasing the use of gas turbine power plant PLTG (simple cycle) being P…
Watersheds are complex ecosystems that play a critical role in regulating water flow, providing natural resources, and meeting human needs. One of the primary issues associated with watersheds is flooding, which often occurs due to land use changes and inadequate drainage systems. This study focuses on the Boang and Kertapati watersheds in Palembang City, which frequently experience flooding as…
PT. Golden Great Borneo adalah perusahaan nan berjalan pada industri pertambangan sebagai pemilik Izin Usaha Pertambangan (IUP) yang sekarang sedang bekerja sama dengan PT. Cahaya Riau Mandiri sebagai kontrantor yang lokasi nya ada di Desa Prabumenang, Kecamatan Merapi Timur, Kabupaten Lahat, Provinsi Sumatera Selatan. Pada aktivitas coal getting PT. Golden Great Borneo memanfaatkan beberapa je…
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…