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Artikel Jurnal
DEVELOPMENT OF LOCOMOTIVE CC 203 MAINTENANCE STRATEGY USING RISK-BASED RELIABILITY CENTERED MAINTENANCE (RCM 3) METHOD
Trains play a vital role in Indonesia's transportation system as they help reduce exhaust emissions and are one of the most environmentally friendly modes of transportation. PT Kereta Api Indonesia (PT KAI) as the largest train operator in Indonesia has an important role in providing reliable and…
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Artikel Jurnal
PENGARUH MATERIAL TERHADAP DEFORMASI, STRAIN, DAN SAFETY FACTOR PADA BRACKET CALIPER MENGGUNAKAN METODE ELEMEN HINGGA
The purpose of this study is to analyze the deformation, equivalent elastic strain, and safety factor of a bracket bracket made from two different materials by using the Finite Element Method, specifically aluminum alloy 6061 T6 and cast iron EN GJL 100. The result of this study is that the…
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Artikel Jurnal
STUDI EKSPERIMEN PENINGKATAN PERPINDAHAN KALOR FLUIDA NANO CuO /AIR PADA VERTICAL HELICAL MICROFIN TUBE
The way to increase heat transfer is to use nanofluids and expand the heat transfer area. This research studied the thermal performance, convection heat change coefficient, and pressure drop in a double pipe heat exchanger experimentally in a vertically arranged helical microfin tube heat…
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Artikel Jurnal
KINERJA PROTOTIPE RODA PENGGERAK BERSIRIP GANDA PADA LAHAN SAWAH GAMBUT
Agricultural technology to support the agricultural sector, especially peaty paddy fields, should be developed, because peat land with a thickness of less than one meter has been recommended for rice crops. supported by a potential peatland area of up to 21 million Ha or 10.8% of Indonesia's land…
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Artikel Jurnal
PENGARUH TEKANAN VAKUM TERHADAP KEMURNIAN OKSIGEN PADA PROSES VACUUM PRESSURE SWING ADSORPTION
Air pollution is an environmental problem that interferes with human health. This pollution is difficult to avoid due to the development of industry and transportation which are not fully environmentally friendly. Air pollution contributes 15-30% of health problems, especially breathing. One of the…
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Artikel Jurnal
KARAKTERISASI PENAMBAHAN KITOSAN DAN HAP PADA PLA TERHADAP SIFAT MEKANIK KOMPOSIT
PLA (poly lactid acid) is a biodegradable polyester that can be applied to tissue engineering because it is biocompatible and non-toxic. The purpose of this study to determine the mechanical characteristics of mixing PLA, chitosan, and Hydroxyapatite. There were 4 variations in this study, namely…
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Artikel Jurnal
OBSERVASI PENURUNAN TEKANAN (PRESSURE DROP) PADA SISTEM PERPIPAAN: PENGARUH PANJANG DAN DIAMETER PIPA, ELBOW, DAN TEE
The piping system is a fundamental process equipment in the industry. The phenomena that occur in piping systems vary depending on the conditions of the pipes and the fluids flowing through them. Therefore, research related to piping systems requires attention to minimize and understand the…
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Artikel Jurnal
DYNAMIC ANALYSIS OF NON-PNEUMATIC TIRES WITH HONEYCOMB SPOKES ON SPEED BUMPS
The Non-Pneumatic Tire (NPT) has rapidly developed as an alternative to the Pneumatic Tire since it was created by Michelin in 2005. This research aims to investigate the influence of load and speed on the stress experienced by honeycomb-structured spokes of NPT tires when passing over speed bumps…
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Artikel Jurnal
RANCANGAN TRACKING MATERIAL SYSTEM UNTUK PELACAKAN DAN PEMINDAHAN KOMPONEN ANTAR GUDANG (STUDI KASUS PT. PINDAD)
This journal presents the development of the Material Tracking Application at PT. Pindad. During the assembly process, some components may be rejected due to defects or non-compliance with other components from different suppliers. It is difficult to identify the origin of rejected components due…
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Artikel Jurnal
PEMBANGKITAN TEGANGAN MENGGUNAKAN KARBON AKTIF TEMPURUNG KELAPA DENGAN ELEKTROLIT AIR
The generation of electrical energy from fossil fuels is currently running low, besides that it can cause global warming due to gas emissions such as carbon dioxide. Besides that, the development of small portable equipment such as watches, handphones, and cameras, requires batteries with small…
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Artikel Jurnal
KARAKTERISASI SIFAT FISIK, KIMIA, DAN MEKANIK SERAT SELULOSA ALAMI DARI AMPAS TEBU
The demand for cellulose fibers is increasing due to their eco-friendly nature. Natural fibers have special qualities that make them excellent for a wide range of fibrous applications, including composites, nanomaterials, biomaterials, textiles, and conductive carbon, which are the main causes of…
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Artikel Jurnal
INVESTIGASI MIKROSTRUKTUR DAN KEKERASAN MATERIAL GEARBOX TRAKTOR TANGAN DENGAN METODE PENGECORAN LOGAM
Tractor gearboxes have become a crucial mechanization tool in the agricultural industry in Indonesia. However, in practice, many of the hand tractor gearboxes available are still imported. Therefore, research is needed to produce hand tractor gearboxes to support domestic industry self-sufficiency…
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Artikel Jurnal
STUDI NUMERIK KARAKTERISTIK PENGABUTAN BAHAN BAKAR DIESEL, BIODIESEL DAN CAMPURANNYA
Biodiesel predicted to replace diesel fuel in the future that comes from the transesterification process of plant oils, animal fats, or used oils. One of the potential raw materials is nyamplung seeds because they are scattered in Indonesia, easy to cultivate, and bear fruit throughout the year…
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Artikel Jurnal
PERSAMAAN REGRESI LINIER BERGANDA UNTUK MEMPREDIKSI EFISIENSI BOILER
Boiler efficiency calculation is crucial to determine the reliability of boiler performance. Generally, boiler efficiency is calculated by the heat loss method, which considers losses in the combustion process. The calculation consumes more time due to detailed procedure and analysis. This research…
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Artikel Jurnal
ANALISIS PENGARUH PERBEDAAN SURFACE PREPARATION DENGAN VARIASI JENIS CAT TERHADAP KEKUATAN ADHESI DAN KETAHANAN IMPACT COATING PADA BAJA SS400
Surface preparation is a fundamental thing that must be done before applying the coating to the material. A good painting will be obtained with good surface preparation treatment. This research aims to determine the effect of different surface preparation methods and various types of paint on…
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Artikel Jurnal
ANALISIS PENGARUH VARIASI ARAH PENGELASAN HARDFACING TERHADAP KEKUATAN TARIK DAN STRUKTUR MIKRO PADA BAJA ASTM A36
Welding is a metal joining process with filler or without filler. The welding method is also used to thicken the surface of the material or hardfacing. Hardfacing is a welding process with the aim of improving mechanical properties and is used on worn components by using SMAW welding, SMAW welding…
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Artikel Jurnal
ANALISIS KARAKTERISTIK ALIRAN MELALUI PENAMPANG PERSEGI PANJANG MENGGUNAKAN MODEL TURBULEN LARGE EDDY SIMULATION (LES)
Dynamic response, fatigue, and stability issues of a structure are closely related to flow behavior past a bluff body structure. Flow past the free-end rectangular prism is investigated numerically using a Large Eddy Simulation (LES) turbulence model at Re = 22000. The prism model has a constant…
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Artikel Jurnal
PENGARUH OUTSERT TERHADAP ALIRAN DAN PERPINDAHAN KALOR PADA ANNULAR HEAT EXCHANGER TIPE HORIZONTAL
In the industrial environment, there is a need to boost heat transfer. The flow manipulation method was selected because it is less expensive, simpler to use, and more accessible. It is wise to utilize a horizontal type annular heat exchanger because it is simple and easy to manufacture. Cold fluid…
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Artikel Jurnal
PERANCANGAN SISTEM KONSTRUKSI MEKANIK 3D PRINTER GEOPOLYMER TYPE CARTESIAN
The population growth in Indonesia continues to increase every year, which causes a higher level of demand for civil buildings and houses. 3D concrete printing is an innovative construction method that has recently begun to be applied to the construction industry and has proven to be profitable in…
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Artikel Jurnal
KINERJA SISTIM HIDROLIK PADA UNIT EXCAVATOR 320D2 CATERPILLAR
Almost most heavy equipment units use a hydraulic system, including systems that are important for heavy equipment units to work. The hydraulic performance test on the excavator unit is part of the test carried out as an operational standard to state that the unit is good to run or operate in work…