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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…
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- xiv, 165 hlm.; ilus.; 29 cm
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- T1914692025
METODE ENSEMBLE MACHINE LEARNING PREDIKSI KEKASARAN PERMUKAAN BAJA S45C PADA …
Surface roughness is a critical quality indicator in precision manufacturing industries due to its direct impact on fatigue resistance and tribological performance of machine components. This study aims to predict surface roughness (Ra) values in the CNC milling process of S45C steel using flood cooling by integrating Support Vector Regression (SVR) and Gaussian Process Regression (GPR) algorit…
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- xxx, 65 hlm.; ilus.; 29 cm
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- T1918192025
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…
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- xxix, 101 hlm.; ilus.; 29 cm
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- T1918622025
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…
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- xix, 66 hlm.; ilus.; 29 cm
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- T1916612025
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…
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- xvi, 73 hlm.; ilus.; tab.; 29 cm.
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- T1908852025
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…
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- xxix, 62 hlm.; ilus.; 29 cm
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- T1917412025
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…
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- xxix, 107 hlm.; ilus.; 29 cm
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- T1915902025
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 …
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- xxxi, 88 hlm.; ilus.; 29 cm
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- T1914392025
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…
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- xxix, 78 hlm.; ilus.; 29 cm
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- T1914482025
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 …
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- xxv, 89 hlm.; ilus.; 29 cm
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- T1914562025
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…
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- xxii, 473 hlm.; ilus.; tab.; 29 cm.
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- T1909722025
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, …
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- xxix, 65 hlm.; ilus.; tab.; 29 cm
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- T1902312025
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…
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- xxvii, 86 hlm.; ilus.; 29 cm
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- T1917742025
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…
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- xix, 61 hlm.; ilus.; tab.; 29 cm.
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- T1899672025
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…
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- xxvii, 75 hlm.; ilus.; 29 cm
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- T1917752025
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…
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- xxx, 69 hlm.; ilus.; tab.; 29 cm
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- T1898322025
ANALISIS KEKASARAN PERMUKAAN BAJA AISI 1045 PADA PROSES FREIS MENGGUNAKAN MAC…
Sustainability in the manufacturing industry demands the optimization of machining processes to be both environmentally friendly and cost-effective. This research aims to analyze and predict surface roughness (Ra) in the milling process of AISI 1045 steel by integrating the Minimum Quantity Lubrication (MQL) method using vegetable oil-based nanofluids and Al2O3 nanoparticles. The use of vegetab…
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- xxix, 91 hlm.; ilus.; 29 cm
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- T1914712025
EFEK PREHEATING TERHADAP DISTORSI SAMBUNGAN LAS DISSIMILAR PLAT SS400 DAN SS3…
Dissimilar metal welding between low carbon steel SS400 and stainless steel SS304 is widely applied in industrial applications due to its ability to combine different mechanical properties and corrosion resistance. However, differences in thermal properties, coefficients of thermal expansion, and thermal conductivity often result in high distortion and residual stress in welded joints. One comm…
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- xxxiii, 82 hlm.; ilus.; 29 cm
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- T1914382025
ANALISIS DISTORSI PENGELASAN DISSIMILAR METAL SS 400 DAN SS 304 PADA SAMBUNGA…
Dissimilar metal welding between carbon steel and stainless steel has been widely applied in industrial applications to reduce production costs and improve equipment reliability. However, differences in physical, mechanical, and thermal properties between the materials may lead to welding-related issues, particularly distortion in fillet weld joints. This study aims to analyze welding distortio…
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- xxix, 90 hlm.; ilus.; 29 cm
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- T1914352025
PEMBANGUNAN SISTEM SORTIR JERUK SUNKIST LOKAL OTOMATIS DENGAN METODE K-NEARES…
The increasing demand for local Sunkist oranges, especially during certain periods, has led to a growing need for an accurate and efficient fruit sorting process. Manual sorting methods are prone to classification errors, which may result in distribution losses, reduced fruit quality, and potential health risks to consumers. Therefore, this study aims to develop an automatic quality identificat…
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- xxvii, 56 hlm.; ilus.; 29 cm
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- T1903982025
STUDI FABRIKASI DAN ANALISIS PENGARUH SUHU TERHADAP PROSES SINTERING DINGIN K…
Bovine bone waste offers significant potential as a source of hydroxyapatite (HA), a biomaterial with chemical characteristics similar to human bone. This study aims to fabricate HA-HDPE composites through the cold sintering process while examining the effect of temperature variations on densification and microstructural characteristics. The cold sintering method was selected due to its ability…
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- xxxi, 75 hlm.; ilus.; 29 cm
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- T1895322025
EKSPERIMENTAL STABILITAS GASIFIKASI UPDRAFT DENGAN MODIFIKASI TIGA SALURAN GA…
This study aims to assess the stability of the coconut shell biomass gasification process using a modified updraft gasification reactor with three gas outlets: an upper outlet, a reduction outlet, and a combustion outlet. This modification was carried out to reduce tar formation, determine operational characteristics and flame stability, and compare the performance of the three outlets. The gas…
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- xxvii, 70 hlm.; ilus.; 29 cm
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- T1906572025
ANALISIS KARAKTERISTIK MEMBRAN PENGOLAHAN AIR DARI BAHAN POLYETHERSULFONE DEN…
Membrane is a thin sheet or flexible film that serves as a selective separator between two phases due to its semipermeable nature. Membrane is one of the water purification technologies that has several advantages compared to conventional methods, including efficient energy use, sustainable operation capability, varied membrane materials, and excellent water quality. This study aims to analyze …
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- xiv, 100 hlm.; ilus.; 29 cm
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- T1424432024
ANALISIS PENGARUH JUMLAH ELEKTRODA DAN JARAK ANTAR ELEKTRODA TERHADAP PERFORM…
Peningkatan kebutuhan energi global serta meningkatnya polusi udara akibat penggunaan bahan bakar fosil mendorong penelitian intensif terhadap alternatif energi yang lebih ramah lingkungan. Di Indonesia, sepeda motor mendominasi hingga 85% kendaraan bermotor dan menjadi penyumbang terbesar emisi gas buang, terutama CO, HC, dan CO₂. Penggunaan teknologi mesin konvensional seperti karburator, d…
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- xxiv, 54 hlm.; ilus.; tab.; 29 cm.
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- T1905332025
ANALISIS LAJU KOROSI KEKERASAN DAN MIKROSTRUKTUR PADA AMC 3%PKSA DAN 1%SIC YA…
Palm kernel shell ash (PKSA) is an abundant biomass material that can be utilized as a reinforcement for aluminum composites due to its low cost, environmental friendliness, and ability to enhance mechanical properties. This study develops an Aluminum Matrix Composite (AMC) based on Aluminium 6063 reinforced with 3% PKSA and 1% SiC to improve its strength and corrosion resistance. The composite…
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- xxiv, 84 hlm.; ilus.; tab.; 29 cm.
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- T1899872025
RANCANG BANGUN PELUNCUR ROKET AIR BERPENGGERAK MEKANIK DAN PNEUMATIK
This research aims to design and develop an automatic water rocket launcher system that integrates a DC motor-based mechanical drive and a pneumatic system as a propulsion mechanism. The launcher is designed with the capability to automatically adjust vertical elevation angles up to 90 degrees and horizontal rotation up to 360 degrees using chain-gear transmission. The research methodology incl…
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- xxxi, 94 hlm.; ilus.; tab.; 29 cm.
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- T1902582025
DISTRIBUSI TEKANAN ALIRAN AIR-UDARA PADA PIPA PLEXIGLASS DENGAN KEMIRINGAN 45…
The pressure of two-phase flow in pipes is complex. This complexity arises due to the interaction between the phases, and the diversity of flow. The distribution of pressure and energy loss along piping systems is a critical factor in efficiency system. To determine the pressure distribution along the pipe, this research was conducted using an experimental method on a Plexiglass pipe with a 45Â…
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- xxvii, 69 hlm.; ilus.; tab.; 29 cm.
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- T1894762025
PETA POLA ALIRAN DAN KUALITAS AIR-UDARA PADA PIPA PLEXIGLASS ORIENTASI VERTIK…
Multiphase flow is a flow that involves many phases in the channel and has many important applications in various industrial fields, one of which is boilers. Two-phase flow is the simplest flow because it has a very complex phenomenon with the interaction between the same and different phases, based on the geometric shape and orientation and direction of the flow up or down. This phase interact…
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- xxvii, 96 hlm.; ilus.; tab.; 29 cm.
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- T1896152025
PETA POLA ALIRAN DAN FRAKSI HAMPA ALIRAN DUA FASE AIR-UDARA PADA KEMIRINGAN P…
Two-phase flow is a simultaneous flow of several types of phases that interact with each other in a channel, forming specific flow patterns. Pipe inclination significantly influences flow pattern distribution and transition boundaries between flow patterns. Two-phase flow pattern maps cannot be generalized for all pipe sizes and inclination angles. This study investigates the characteristics of…
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- xxv, 89 hlm.; ilus.; tab.; 29 cm.
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- T1894662025
STUDI EKSPERIMENTAL PENGARUH VARIASI KECEPATAN SUPERFISIAL AIR-UDARA TERHADAP…
This study aims to analyze the effect of variations in air-water mixture superficial velocity (Jmix) on pressure drop in vertical co-current two-phase flow and compare the experimental results with the theoretical calculations. The experiment was conducted using a 1-inch diameter plexiglass pipe with a test section length of 1 meter. The working fluids used were water and air, with water flow r…
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- xxvii, 87 hlm.; ilus.; tab.; 29 cm.
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- T1894782025
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