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Artikel Jurnal
Studi Eksperimental Performance Kincir Air Breastshot dengan Menggunakan Nozzle
The purpose of this study was to determine the performance of a waterwheel with a breastshot using a nozzle. The test was carried out experimentally on a laboratory scale and to anticipate the relatively large size of the program because of the complexity in data acquisition and control, the…
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Artikel Jurnal
The Reliability Assessment of Crucial Components in Hydraulic Axial Pump by Two-Parameters Weibull
The proper maintenance of the hydraulic axial pump was discussed to maximize its performance and minimize downtime. In this study, reliability assessment by a two-parameter Weibull was applied as a reference for the periodic maintenance of the components in the hydraulic axial pump with a capacity…
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Artikel Jurnal
Studi Komparasi Performa Motor Bakar 4 Tak Karburator dan Motor Bakar 6 Tak Mub-2 Karburator Berbahan Bakar Pertamax
This paper describes the comparison of the performance of a 4 stroke carburetor motorbike with the MUB-2 six-stroke engine with additional combustion duration and two working strokes. The increase in combustion duration aims to re-burn combustible species that have not been completely burned in the…
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Artikel Jurnal
Peran Senyawa Asam Fulvat dari Air Gambut terhadap Produktivitas Gas Hidrogen dengan Metode Elektrolisis
Wetlands water is water formed from the breakdown of organic substances found in peatlands. In general, wetlands water has acidic properties (pH
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Artikel Jurnal
THE EFFECT OF SPARK PLUG GROUND ELECTRODE ON SPARK IGNITION ENGINE PERFORMANCE
Motorcycle performance is influenced by many factors, including combustion chamber dimension, fuel characteristic, type of spark plug, spray flame, ignition timing, and the combustion chamber's cooling system to avoid incomplete combustion and knocking processes. The spark plug is an essential…
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Artikel Jurnal
REKAYASA DAN UJI PERFORMAN-SI KOMPOR LPG BERTEKANAN DENGAN TUNGKU SERBUK KAYU PADA PRODUKSI GULA KELAPA KRISTAL
Crystal coconut sugar is a local Indonesian food product that has enormous potential, not only domestically but also abroad. The temperature and cooking time in the production of ant sugar are things that need to be considered because they are related to the efficiency and quality of ant sugar…
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Artikel Jurnal
OPTIMASI PARAMETER KARBURISASI TEMPERATUR RENDAH PADA BAJA TAHAN KARAT AUSTENITIK MENGGUNAKAN METODE TAGUCHI
Austenitic stainless steel is a popular material for its corrosion resistant properties, however it has low hardness which limits its application. Low-temperature carburizing can be used to improve the mechanical properties of the austenitic stainless steel by producing expanded austenite layer. In…
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Artikel Jurnal
KARAKTERISTIK POLA ALIRAN DUA FASE GAS-CAIRAN NON-NEWTONIAN DI DALAM MICROCHANNELS BERPENAMPANG PERSEGI
The aim of this study is to investigate the characteristics of gas-non-Newtonian liquids flow patterns in square microchannels. The microchannels that used in this study was made by acrylic material with horizontal orientation and the side length of 8x10-4 m. Water, Air, Carboxymethyl Cellulose…
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Artikel Jurnal
PERANCANGAN MODIFIKASI MESIN BENDING ROTARY BAJA APLIKASI STAND POT BUNGA
Plants grown in pots continue to grow year after year. A flower pot support or flower pot stand is required to add aesthetic value and save space. The purpose of this research is to develop a steel rotary bending machine design for flower pot stand applications The method used is to calculate the…
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Artikel Jurnal
STRUKTUR KRISTAL DAN MORFOLOGI PERMUKAAN – SINTESIS SNO2 MENGGUNAKAN METODE SOL-GEL
SnO2 oxide powder was synthesized using the sol-gel method. SnO2 oxide powder was produced using a solution of tin(IV) chloride (SnCl4) and 25% ammonia (NH4(OH)) by annealing the final product for 4 hours at 900 °C. The pH variation was carried out at pH 7 and 9. XRD analysis showed that the…
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Artikel Jurnal
INVESTIGASI AREA SERRATED YIELDING PADA PADUAN 800H
Detailed information about the mechanical properties of components in the power plant was crucial in process design. One essential piece of information was the characteristics of the material at various temperatures in a tension load. In this study, the tensile test was applied to the Alloy 800H…
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Artikel Jurnal
SUPPLY CHAIN RISK ANALYSIS AND ASSESSMENT USING ANALYTICAL HIERARCHY PROCESS (AHP): A REVIEW
In these days, increasing consumer demand uncertainties, e.g. due to war in Europe, severe drought in west Europe or Covid pandemic, increase challenge in supply chain operation. Uncertainty and unreliable events interfere supply chain’s operations and strategies. As a result, increasing risks in…
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Artikel Jurnal
SIFAT TERMAL, ELEKTROKIMIA DAN STRUKTUR MIKRO OKSIDA PEROVSKIT GANDA SEBAGAI MATERIAL KATODA SOFC BEROPERASI PADA SUHU MENENGAH
The oxides SmBa0.8Sr0.2Co2O5+δ (SBSC) have been explored as cathode materials for IT-SOFCs using SDC as the electrolyte. XRD was used to determine the structure of SBSC powder, and SEM was used to observe the morphology of the microstructure. Thermogravimetric Analysis (TGA) is used to measure the…
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Artikel Jurnal
PREDIKSI POLA SEBARAN PLUME RISE PADA VARIASI KECEPATAN EMISI GAS BUANG CHIMNEY DENGAN SIMULASI KOMPUTER
One of the most significant current issues that endangers environment is air pollution from industrial chimney emissions. In certain condition, the mathematical models to analyze this problem is the Gaussian Plume Model (GPM), which is a model of air pollutant distribution that takes place under…
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Artikel Jurnal
RANCANG BANGUN KOLEKTOR SURYA TIPE PARABOLIC TROUGH MENGGUNAKAN REFLEKTOR ALUMINIUM TAPE-POLIESTER UNTUK APLIKASI PEMANAS UDARA PADA LEMARI PENGERING
Parabolic trough type solar collector is a potential heating device for use in a dryer. This instrument utilizes radiation or sunlight as a heat source. Generally, solar collector converts solar radiation energy in electromagnetic waves form into heat energy. In this research, a parabolic trough…
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Artikel Jurnal
PEMANFAATAN LIMBAH TANDAN KOSONG SAWIT (TKS) SEBAGAI MATERIAL ALTERNATIF DALAM PEMBUATAN BADAN WAHANA TERBANG TIPE FIXED WING ATHA MAPPER 2150
To improve the application and use value of Palm Oil Empty Fruit Bunch (OPEFB) waste as a composite material, the research team conducted research related to the utilization OPEFB fiber as an alternative material to replace carbon fiber in the manufacture of fuselage of Unmaned Aerial Vehicle…
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Artikel Jurnal
PERFORMANSI POMPA INJEKSI BAHAN KIMIA PADA ANJUNGAN WEST STUPA
The West Stupa Pavilion is one of the offshore platforms of TOTAL E&P Indonesie which operates in the oil and gas sector in Indonesia. In the production process at the West Stupa platform, there is a pneumatic pump which is useful for injection of corrosion inhibitor chemicals for pipe flow…
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Artikel Jurnal
ANALISIS FREKUENSI NATURAL DAN MODUS GETAR BALOK KANTILEVER ALUMINIUM DENGAN METODE ELEMEN HINGGA DAN EKSPERIMENTAL
A structure can experience vibration at a certain level, parameters such as material properties, position of supports, and system frequency determine their vibration characteristics. This study aims to analyze the relationship between natural frequency and vibration mode using both Autodesk…
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Artikel Jurnal
THE EFFECT OF VARIATION OF ZEOLITE AS ADSORBENT MEDIUM AND ADSOPTION PRESSURE TOWARD THE QUALITY OF OXYGEN PRODUCED FROM PRESSURE SWING ADSORPTION (PSA)
One of the most important element in human life is oxygen. To produce good quality of oxygen, a purification process is needed. Pressure Swing Adsorption with the adsobent of zeolite is the most comon method used for oxygen purification. This study aimed to find out media variation of of zeolite as…
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Artikel Jurnal
RANCANG BANGUN DAN KARAKTERISASI FEEDING MECHANISM SILIKONE BERBASIS SYRINGE PUMP PADA 3D PRINTER
Additive Manufacturing as one of the methods used on a 3D Printer can be applied with silicone as its material by designing a feeding mechanism based on a syringe pump which considers its mass flow rate. The purpose of this experiment is to produce the design of a feeding mechanism and to know the…