EFEK KETEBALAN PLAT BAJA KARBON RENDAH SS-400 TERHADAP DISTORSI FILLET JOINT …

This study aims to analyze the effect of variations in the thickness of SS-400 low carbon steel plates on the distortion of fillet joints using the Shielded Metal Arc Welding (SMAW) method. Welding is a widely used method of joining metals, but it often causes distortion due to uneven heat distribution during the heating and cooling processes. The plate thickness variations used in this study w…

STUDI EKSPERIMENTAL PEMANAS AIR DENGAN MEMANFAATKAN UDARA PANAS OUTDOOR AC SP…

Peningkatan penggunaan Air Conditioner (AC) di daerah beriklim tropis seperti Indonesia menyebabkan pelepasan panas buang yang cukup besar ke lingkungan melalui unit outdoor. Panas buang tersebut umumnya tidak dimanfaatkan, meskipun memiliki potensi sebagai sumber energi alternatif. Penelitian ini menyajikan studi eksperimental sistem pemanas air dengan memanfaatkan udara panas dari unit outdoo…

ANALISIS KINERJA METODE K-NEAREST NEIGHBORS UNTUK PENGEMBANGAN SISTEM OTOMASI…

The increasing volume of paper waste necessitates the development of more effective and efficient sorting systems to support recycling processes and reduce environmental impacts. Manual paper waste sorting is considered less optimal due to its time-consuming nature and susceptibility to human error. Therefore, this study aims to analyze the performance of the K-Nearest Neighbors (KNN) method in…

PENGUJIAN TAR PADA PROSES GASIFIKASI UPDRAFT GASIFIER DENGAN GAS KELUAR DARI …

ar is a byproduct formed in the biomass gasification process due to the pyrolysis reaction of hydrocarbon compounds. The presence of tar in the gasification gas is a serious problem because it can clog the gas flow channel, reduce system efficiency, and disrupt the performance of advanced equipment. Therefore, efforts are needed to reduce the tar content to improve the quality of the gas produc…

ANALISIS EKSPERIMENTAL KINERJA TURBIN ANGIN DARRIEUS NACA 0025 DENGAN TIGA SUDU

This study presents an experimental analysis of the performance of a three-bladed H-rotor Darrieus wind turbine employing a NACA 0025 airfoil, as an effort to develop a renewable energy–based power generation system suitable for low wind speed regions. The objective of this research is to examine the effect of wind speed variations on wind power, generator power output, and overall system eff…

PENGEMBANGAN SISTEM SORTIR OTOMATIS SAMPAH BOTOL PLASTIK DENGAN METODE DECISI…

Sampah plastik yang terus meningkat, khususnya jenis PET, HDPE, dan PP, menjadi permasalahan lingkungan serius karena proses daur ulang masih terkendala pada tahap pemilahan yang belum efisien dan akurat. Penelitian ini mengembangkan sistem sortir otomatis sampah botol plastik berbasis citra digital dengan metode Decision Tree guna meningkatkan akurasi, kecepatan, dan konsistensi proses pemilah…

ANALISIS ENERGI LISTRIK YANG DIHASILKAN OLEH PEMBANGKIT LISTRIK TENAGA MINI H…

Mini Hydropower Plants (MHP) are renewable energy systems that convert the potential energy of water into electrical energy through turbines and generators. This research was conducted at the Green Lahat Mini Hydropower Plant in South Sumatra to analyze the electrical energy produced and evaluate the influence of water discharge and net head variations on the generated output power. The researc…

PENGARUH VARIASI LAMBUNG KAPAL TERHADAP RESISTANSI TOTAL MENGGUNAKAN SOFTWARE…

The hull form is one of the primary factors influencing the total resistance experienced by a vessel during operation. High resistance increases propulsion power requirements and fuel consumption, thereby reducing overall operational efficiency. This study aims to compare the total resistance of several monohull hull form variations and to identify the configuration that produces the lowest res…

ANALISIS PARAMETER PEMOTONGAN TERHADAP DAYA PEMESINAN PADA PROSES FACE MILLIN…

The increasing electrical power consumption in the manufacturing industry necessitates the optimization of machining parameters to achieve higher efficiency and sustainability. Milling Process is one of the machining operations that requires relatively high power, in which cutting parameters directly influence the machining power consumption. This study aims to analyze the effects of cutting sp…

STUDI EKSPERIMENTAL KINERJA TURBIN ANGIN DARRIEUS DENGAN TIGA SUDU AIRFOIL NA…

Penelitian ini bertujuan untuk menganalisis kinerja turbin angin sumbu vertikal tipe Darrieus dengan konfigurasi tiga sudu menggunakan profil airfoil NACA 0015. Penelitian ini dilatarbelakangi oleh meningkatnya kebutuhan energi listrik serta keterbatasan bahan bakar fosil, sehingga diperlukan pengembangan sumber energi terbarukan yang berkelanjutan, khususnya energi angin. Indonesia memiliki po…

KLASIFIKASI TINGKAT KEKASARAN PERMUKAAN BAJA MENGGUNAKAN RANDOM FOREST DENGAN…

The rapid development of technology and driven by various human needs, has greatly advanced the manufacturing world, resulting in challenges to produce quality products. It is very important to measure and group the level of surface roughness of steel because the roughness of the surface affects how resistant the product is to wear and how well it performs. It is important to classify the level…

ANALISA DISTORSI PADA SAMBUNGAN LAS SS400 DAN SS304 DENGAN SAMBUNGAN LAS TEE …

Two types of industrial metallic materials commonly used are SS400, which is a low-carbon steel with moderate strength, and SS304, which is an austenitic stainless steel characterized by high corrosion resistance and lower thermal conductivity. This study aims to analyze the magnitude of distortion, hardness distribution, and microstructural changes in dissimilar welded joints between SS400 and…

STUDI SIFAT TERMOFISIK DAN STABILITAS NANOFLUIDA CuO-MWCNT/AQUADES-ETILEN GLIKOL

Nanofluids are fluids containing nano-sized particles and have the ability to improve heat transfer performance compared to conventional fluids. This study examines the thermophysical properties and stability of CuO–MWCNT hybrid nanofluids with a base fluid mixture of distilled water–ethylene glycol. Nanofluids were prepared using a two-step method with variations in volume fractions of 0.2…

ANALISIS MEKANIKA KONTAK TERHADAP BANTALAN METAL ON PLASTIC PADA SENDI PINGGU…

Total Hip Arthroplasty (THA) adalah prosedur umum untuk mengatasi kerusakan sendi pinggul yang disebabkan oleh osteoartritis. Kinerja implan sendi pinggul dalam jangka waktu lama sangat bergantung pada mekanika kontak di permukaan artikulasi antara femoral head dan acetabular cup. Penelitian ini bertujuan mengevaluasi dampak mekanika kontak pada berbagai konfigurasi bantalan CoCrMo on UHMWPE da…

STUDI SIFAT TERMOFISIK DAN STABILITAS NANOFLUIDA AL2O3 – TiO2 / AQUADES –…

Nanofluids are engineered fluids developed by adding nanoparticles into base fluids to enhance heat transfer capabilities. The use of nanofluids is increasingly important in high-temperature industrial systems such as automotive, power generation, electronic cooling, and transportation, because conventional fluids such as water and ethylene glycol have limited thermal conductivity. This study a…

STUDI EKSPERIMENTAL KOMPARATIF PENGARUH JENIS LOYANG TERHADAP EFISIENSI TERMA…

Proses pemanggangan pada oven konvensional sangat bergantung pada distribusi panas di dalam ruang oven, yang dipengaruhi oleh desain loyang dan pengaturan ventilasi. Penelitian ini bertujuan untuk menganalisis dan membandingkan efisiensi termal antara loyang berlubang dan loyang biasa, menentukan kondisi ventilasi oven yang paling efektif, serta mengkaji hubungan antara desain loyang, pengatura…

PENGUJIAN AWAL TAR PADA UPDRAFT GASIFIER DENGAN TIGA GAS KELUAR DARI ATAS, RE…

This study investigates the tar content in an updraft gasifier modified with three gas outlet channels, namely the upper channel, the reduction channel, and the combustion channel, using coconut shell biomass as the feedstock. The research is motivated by the large potential of biomass resources in Indonesia and the main drawback of updraft gasifiers, namely the high tar content, which can disr…

PENGARUH VARIASI KETEBALAN PELAT SS400 TERHADAP DISTORSI PADA T-JOINT MENGGUN…

Distortion is one of the main problems in welding processes that can lead to dimensional inaccuracies and reduced joint quality. Distortion occurs due to non-uniform heat distribution and the development of residual stresses during welding. This study aims to analyze the effect of SS400 low carbon steel plate thickness variation on distortion in T-joint welds using the Shielded Metal Arc Weldin…

How to Investigate and Analyze The Components of a Generator Engine and Machi…

Edition

-

ISBN/ISSN

978-623-029-088-6

Collation

xiv, 106 hlm.; 23 cm

Series Title

-

Call Number

621.313 Wil H

ANALISIS KINERJA AKTUAL TURBIN ANGIN DARRIEUS TIPE-H ROTOR AIRFOIL NACA 0035

Increased demand for electrical energy and limited fossil fuel resources have driven the development of renewable energy, one of which is wind energy. Darrieus vertical axis wind turbines have the potential to be developed in Indonesia because they are capable of operating in variable wind conditions without requiring a wind direction guidance system. This study aims to analyze the actual perfo…

ANALISIS KEKASARAN PERMUKAAN PADA PEMESINAN FREIS MENGGUNAKAN CAIRAN PEMOTONG…

This study aims to analyze the influence of machining parameters on surface roughness and to optimize the milling process using a machine learning approach. The machining process was conducted on AISI 1045 steel using the down milling method with a Minimum Quantity Lubrication (MQL) system based on coconut oil combined with Fe₃O₄ nanoparticles as a nano-cutting fluid. The machining paramete…

PENGARUH PENAMBAHAN SURFAKTAN CETYL TRIMETHYL AMMONIUM BROMIDE (CTAB) TERHADA…

Penelitian ini bertujuan untuk menganalisis pengaruh penambahan surfaktan Cetyl Trimethyl Ammonium Bromide (CTAB) terhadap sifat termofisik dan stabilitas nanofluida hibrida berbasis Multi-Walled Carbon Nanotube (MWCNT)–Al₂O₃ dengan aquades sebagai fluida dasar. Nanofluida memiliki potensi besar dalam aplikasi perpindahan panas karena mampu meningkatkan kinerja termal dibandingkan fluida …

STUDI SIFAT TERMOFISIK DAN STABILITAS NANOFLUIDA CuO – Al2O3/AKUADES – ET…

Penelitian ini membahas studi sifat termofisik dan stabilitas nanofluida hibrida berbasis tembaga oksida (CuO) dan alumunium oksida (Al2O3) dengan fluida dasar campuran akuades dan etilen glikol. Latar belakang penelitian didasarkan pada keterbatasan fluida konvensional dalam memenuhi kebutuhan sistem perpindahan panas modern, sehingga diperlukan fluida alternatif dengan kinerja termal yang leb…

PENGARUH PENAMBAHAN SURFAKTAN SODIUM DODECYL SULFATE (SDS) TERHADAP SIFAT TER…

Penelitian ini bertujuan untuk menganalisis secara mendalam mengenai pengaruh penambahan surfaktan Sodium Dodecyl Sulfate (SDS) terhadap karakteristik termofisik, yang meliputi parameter densitas dan viskositas, serta tingkat stabilitas suspensi pada nanofluida hibrida MWCNT – TiO2 berbahan dasar akuades. Metodologi eksperimental yang diterapkan dalam studi ini berbasis pada desain parameter …

DESAIN SISTEM KONTROL PENJEJAK WAYPOINT PADA QUADCOPTER DENGAN MENGGUNAKAN KO…

Quadcopter is a type of UAV (Unmanned Aerial Vehicle) that is often used today and is better known by public as a drone. The drone can be controlled automatically using a remote control or software that has been configured with a quadcopter system. One of the control systems that is often used is the PID controller. This study aims to obtain variations in PID parameter values at roll, pitch, an…

STABILITAS EKSPERIMENTAL GASIFIKASI TEMPURUNG KELAPA PADA UPDRAFT GASIFIER DE…

This study aims to analyze the stability of coconut-shell biomass gasification in a modified updraft gasifier equipped with two gas outlets: a reduction zone outlet and a combustion zone outlet. The modification was implemented to evaluate operational characteristics, combustible gas stability, flame behavior, and performance differences between the two outlets. The reduction zone produced CO, …

ANALISIS EFISIENSI TERMAL IDEAL DAN AKTUAL TURBIN GAS TERHADAP VARIASI BEBAN …

The increasing demand for electrical energy necessitates the operation of power plants with optimal operational efficiency. Combined Cycle Power Plant (CCPP) play a crucial role in meeting this demand however, these plants operate under varying loads to accommodate fluctuations in energy consumption. This operational load variation affects the performance of gas turbines, such as thermal effici…

PENGUJIAN AWAL TAR PADA UPDRAFT GASIFIER DENGAN GAS KELUAR DARI ATAS DAN DAER…

Tar is an unavoidable by-product of biomass gasification and can cause operational problems such as system blockage. This study aims to analyze the characteristics of tar formation during coconut shell biomass gasification using a modified updraft gasifier with two gas outlet channels, namely the upper outlet and the combustion-zone outlet. The evaluation was conducted based on tar mass per uni…

ANALISIS PENGARUH TEMPERATUR LINGKUNGAN TERHADAP KONSUMSI BAHAN BAKAR SPESIFI…

Increasing electricity demand requires efficient and environmentally friendly power generation systems. Combined Cycle Power Plant (CCPP) have high efficiency levels because they combine the Brayton cycle in gas turbines and the Rankine cycle in steam turbines. The performance of Combined Cycle Power Plant is greatly influenced by gas turbine operating conditions, particularly ambient temperatu…

EKSPERIMENTAL GASIFIKASI TEMPURUNG KELAPA PADA UPDRAFT GASIFIER DENGAN KOMBIN…

The increasing dependence on fossil fuels poses challenges to energy security, highlighting the need for renewable energy alternatives such as biomass. Coconut shell, a carbon-rich biomass waste, has significant potential to be converted into combustible gas through gasification. Although updraft gasifiers offer high efficiency, they are prone to excessive tar production, which can be mitigated…