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All Journal CIVED (Journal of Civil Engineering and Vocational Education) Mechanical Engineering Education Journal Sainstek Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Teknomekanik Fokus Elektroda: Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Jurnal Vokasi Mekanika Fleksibel: Jurnal Pengabdian Kepada Masyarakat
Yolli Fernanda
Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Transportation

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Journal : MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering

 1 
Comparison Lift and Drag of Airfoil NACA 1408 Standard and Modification Using Computational Fluid Dynamic Usin Usin; Yolli Fernanda; Arwizet Karudin; Andre Kurniawan
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 4 No 3 (2022): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1313.92 KB) | DOI: 10.46574/motivection.v4i3.146

Abstract

An airfoil is a geometry shape of an aircraft wing designed to produce high lift force and low drag forces. Study on the air flow and pressure around of the airfoil was important step to analysis lift force and drag force. Factor affecting the lift force and drag force airfoil are the geometry and dimensions of the airfoil. This study to discus about the modification airfoil NACA 1408 was performed by adding round tip in leading edge to obtain simulate air flow by varying the angle of attack. The result showed that coefficient of lift (Cl) and coefficient of drag (Cd) was calculated from the simulations, data the highest Cl and Cd were 0.00277 and 0.00025 for the standard airfoil and for modification airfoil were 0.00343 and 0.00064. Based on the test result, the modified airfoil can produce better lift force than the standard shapes for test speed of 20 m/s. Airfoil merupakan bentuk geometri sayap pesawat terbang yang dirancang untuk menghasilkan lift force tinggi dan drag force rendah. Studi tentang aliran udara dan tekanan di sekitar airfoil adalah langkah penting untuk menganalisis lift force dan drag force. Faktor yang mempengaruhi lift force dan drag force airfoil adalah geometri dan dimensi airfoil tersebut. Penelitian ini membahas tentang modifikasi dilakukan pada airfoil NACA 1408 dengan menambahkan ujung bulat pada leading edge dan mendapatkan simulasi aliran udara dengan memvariasikan angle of attack. Hasil penelitian menunjukkan bahwa coefficient of lift dan coefficient of drag dihitung dari simulasi, data coefficient of lift dan coefficient of drag tertinggi adalah 0.00277 dan 0.00025 untuk airfoil standar dan untuk airfoil modifikasi adalah 0.00343 dan 0.00064. Berdasarkan hasil pengujian, airfoil modifikasi dapat menghasilkan lift force lebih baik daripada bentuk standar untuk kecepatan uji 20 m/s.
Observation of Flow Loss on Pneumatic Fly Ash Transport System in Cement Plant Muhammad Akhbar; Yolli Fernanda; Refdinal Refdinal; Arwizet K
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 1 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1063.965 KB) | DOI: 10.46574/motivection.v5i1.160

Abstract

Pneumatic conveying is a material transport tool that utilizes compressed air in a pipe that comes from a blower or compressor. The EP dust raw mill material transport equipment is designed using the pneumatic conveying principle which aims to deliver the material optimally to the cement mill. Therefore, this study aims to analyze the fluid flow in the EP dust Raw Mill material transport system pipe which aims to determine the phenomenon of fluid flow in the pipe design and find the head loss of the material transport pipe. This analysis uses a numerical method that is solving problems by being formulated mathematically by calculating operations and assisted by solidworks software. The size of the pipe to be analyzed is 330 meters long with a diameter of 0.2 meters and has 8 elbows and a head loss of 425.53 meters is obtained, while the results of theoretical calculations obtained a major loss of 374.61 meters and a minor loss of 20.87 meters and the total head loss is 395.48 meters. Pneumatic conveying merupakan alat transpor material yang memanfaatkan udara bertekanan dalam pipa yang berasal dari blower maupun compressor. Alat transpor material EP dust raw mill dirancang menggunakan prinsip pneumatic conveying yang bertujuan untuk menghantarkan material secara optimal menuju cement mill. Oleh karena itu penelitian ini bertujuan untuk menganalisis aliran fluida yang berada didalam pipa sistem transpor material EP dust Raw Mill yang bertujuan untuk mengetahui fenomena aliran fluida pada desain pipa dan mencari head loss dari pipa transpor material tersebut. Analisis ini menggunakan metode numerik yaitu menyelesaikan permasalahan dengan diformulasikan secara matematis dengan cara operasi hitungan dan dibantu oleh software solidworks. Ukuran Pipa yang akan dianalisis sepanjang 330 meter dengan diameter 0,2 meter dan memiliki elbow sebanyak 8 buah dan didapatkan headloss sebesar 425,53 meter sedangkan dari hasil perhitungan teoritis didapatkan major loss sepanjang 374,61 meter dan minor loss sebesar 20,87 meter dan total head lossnya sebesar 395,48 meter.
Characteristics of Albizia Chinensis Wood Sawdust Briquette Product at High Compression Method Adam Mandra Suwandi; Yolli Fernanda; Ambiyar Ambiyar; Andril Arafat
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 1 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (654.158 KB) | DOI: 10.46574/motivection.v5i1.196

Abstract

One of the biomass potentials that can be utilized is felled wood waste which can be used as an energy source. The advantage of biomass is that it can be renewed so that it triggers a sustainable energy source. Biomass energy that will be made into briquettes is processed and compressed so that the shape is more regular and has a high calorific value. In this study, wood waste will be used as a source of biomass. The test was carried out, namely the thermogravimetric test to determine the proximate content. The method used is using Sengon wood as a raw material with a particle size exceeding 18 mesh but not exceeding 30 mesh. Briquetting using a hydraulic pump and briquette hot molding, temperature variations of 250℃, 300℃, and 330℃ with a time of 10 minutes. The test was carried out, namely the thermogravimetric test to determine the proximate content of the briquettes. Applying pressure to the briquettes while simultaneously heating makes the briquettes strong. From 3 variations of temperature treatment, it was found that the temperature of 330℃ had a high carbon content and low volatility of all test samples. Salah satu potensi biomassa yang bisa dijadikan sebagai sumber energi adalah limbah kayu hasil tebangan. Kelebihan biomassa adalah dapat diperbaharui. Energi biomassa yang akan dibuat menjadi briket diolah dan dimampatkan sehingga bentuknya lebih teratur dan mempunyai nilai kalor yang tinggi. Penelitian ini akan menggunakan sampah kayu untuk sumber biomassa. Pengujian dilakukan yaitu uji thermogravimetric untuk mengetahui kandungan proximate. Metode yang digunakan adalah dengan bahan baku kayu sengon dengan ukuran partikel antara 18 mesh tetapi tidak lebih dari 30 mesh. Pembriketan dengan pompa hidrolik dan cetak panas briket, variasi temperature 250℃, 300℃ dan 330℃ dengan waktu selama 10 menit. Pengujian thermogravimetric dilakukan untuk mengetahui kandungan proximate dari briket. Pemberian tekanan pada briket sekaligus pemanasan menjadikan briket yang kuat, dari 3 variasi perlakuan suhu. didapatkan bahwa suhu 330℃ memiliki kandungan karbon yang tinggi dan volatile yang rendah dari semua sample uji.
Analysis of Fluid Flow in Pipeline and Cyclone Systems for Preduster Coal Mill Indarung V Factory Using Flow Simulation Akhmad Rais; Yolli Fernanda; Arwizet K; Andre Kurniawan
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 2 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (947.042 KB) | DOI: 10.46574/motivection.v5i2.224

Abstract

Cyclone is a tool for selling particulates from fluid streams without a filter. Cyclone in this case is to separate particulates from the air stream so they don't enter the coal mill. This study aims to analyze the effectiveness of the cyclone, pressure drop, and head loss in the system. The particles to be separated from the fluid stream are 9 microns in size. Pipe length for flow distribution is 67.24 m and 7 units of elbows. This analysis uses numerical methods with flow simulation features and compares them with theoretical results. Theoretical results obtained a pressure drop of 4042.74 Pa and a head loss of 607.82 m. This pressure drop is greater than the pressure fan, which is 1333 Pa. The simulation results of the inlet pipe 200 with a pressure drop of 4207.42 Pa, a head loss of 632.58 m, and an efficiency of 43%. At the inlet pipe 100 with a pressure drop of 4146.04 Pa, a head loss of 623.35 m, and an efficiency of 17%. At the inlet pipe 250 with a pressure drop of 4362.61 Pa, a head loss of 655.82 m, and an efficiency of 39%. Best results on pipe inlet 200. Cyclone merupakan alat untuk memisahkan partikulat dari aliran fluida tanpa filter. Cyclone dalam hal ini untuk memisahkan partikulat dari aliran udara supaya tidak masuk ke coal mill. Penelitian ini bertujuan untuk menganalisis efektivitas cyclone, pressure drop, dan head loss pada sistem. Partikel yang akan dipisahkan dari aliran fluida berukuran 9 mikron. Panjang pipa untuk distribusi aliran yaitu 67,24 m dan elbow sebanyak 7 unit. Analisis ini menggunakan metode numerik oleh fitur flow simulation dan membandingkannya dengan hasil teoritis. Hasil teoritis didapatkan pressure drop 4042,74 Pa dan head loss 607,82 m. Pressure drop ini lebih besar dari pressure fan yaitu 1333 Pa. Hasil simulasi inlet pipa 200 dengan pressure drop 4207,42 Pa, head loss 632,58 m, dan efisiensi 43%. Pada inlet pipa 100 dengan pressure drop 4146,04 Pa, head loss 623,35 m, dan efisiensi 17%. Pada inlet pipa 250 dengan pressure drop 4362,61 Pa, head loss 655,82 m, dan efisiensi 39%. Hasil terbaik pada inlet pipa 200.
Method of Calculating the Forces on the 2D/3D Truss: A Review Mega Oktaviani; Delima Yanti Sari; Yolli Fernanda; Andril Arafat
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 3 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v5i3.226

Abstract

The truss system is the most efficient structural system, and is widely used in various forms of building contruction. In analyzing a structure there are various methods that have been used, including the stiffness matrix method and the classical mechanics method. To facilitate structure analysis can be done with the help of existing structure analysis software, such as SAP2000, Etabs, and Opensess, or by developing the Matlab programming language with a GUI. The purpose of this study is to provide a review of several calculation methods that have been used, to calculate the forces on 2D/3D truss. The research method used is a review literature that is descriptive analysis by collecting several relevant sources. In this paper, a literature review of the 2D/3D truss calculation method was carried out in terms of the calculation method and the software used. The results obtained are the stiffness matrix method which is the most popular method and has been widely used to date, because the calculation process is carried out in a systematic and patterned manner. And the application that is commonly used is Matlab, with the program validation process using SAP2000, the results of the analysis between programs show no different results. Sistem rangka batang (truss) adalah sistem struktur yang paling efisien, dan banyak digunakan dalam berbagai bentuk kontruksi bangunan. Dalam menganalisis suatu struktur terdapat bermacam-macam metode yang telah digunakan, diantaranya metode matriks kekakuan dan metode mekanika klasik. Untuk memudahkan analisis struktur dapat dilakukan dengan bantuan software analisis struktur yang telah ada, seperti SAP2000, Etabs, dan Opensess, atau dengan mengembangkan bahasa pemograman Matlab dengan GUI. Tujuan penelitian ini adalah memberikan tinjauan (review) tentang beberapa metode perhitungan yang telah digunakan, untuk menghitung gaya-gaya pada truss 2D/3D. Metode penelitian yang digunakan adalah literatur review yang bersifat analisis deskriptif dengan mengumpulkan beberapa sumber yang relevan. Dalam paper ini dilakukan kajian literatur tentang metode perhitungan truss 2D/3D dari segi metode perhitungan dan software yang digunakan. Hasil yang didapatkan yaitu Metode matriks kekakuan merupakan metode yang paling populer dan telah banyak digunakan hingga saat ini, dikarenakan proese perhitungan dilakukan secara sistematis dan terpola. Dan aplikasi yang umum digunakan adalah Matlab, dengan proses validasi program menggunakan SAP2000, hasil analisis antara program menunjukan hasil yang tidak berbeda.
Effect of Temperature and Pressure on the Density of Organic Waste Briquettes Riky Satria; Yolli Fernanda; Refdinal Refdinal; Sri Rizki Putri Primandari
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 3 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v5i3.246

Abstract

Organic waste is one way of utilizing biomass to produce energy. The advantage of biomass is that it tends to be renewable. The energy from biomass that will be used to make briquettes is processed and compressed into a more regular form with a high calorific value. This research will involve organic waste as a source of biomass. To obtain briquettes that are dense, tight, and in good condition, tests were conducted with various temperature and pressure settings. Organic waste with particle size between 18 and 30 mesh is used in this method. Briquetting using heat-treated molds, with temperatures of 200, 250 and 300 °C with a holding time of 5 minutes and also applying pressures of 5 MPa, 10 MPa, 15 MPa and 20 MPa. At 300 °C, 10 and 20 MPa pressure, the briquettes were dense, tight and had high density values. Sampah organik merupakan salah satu cara pemanfaatan biomassa untuk menghasilkan energi. Keuntungan dari biomassa adalah bahwa hal itu cenderung diperbaharui. Energi dari biomassa yang akan digunakan untuk membuat briket diolah dan dikompresi menjadi bentuk yang lebih teratur dengan nilai kalor yang tinggi. Penelitian ini akan melibatkan limbah sampah organik sebagai sumber biomassa. Untuk mendapatkan briket yang padat, rapat, dan dalam kondisi baik, dilakukan pengujian dengan berbagai pengaturan suhu dan tekanan. Sampah organik dengan ukuran partikel antara 18 dan 30 mesh digunakan dalam metode ini. Pembriketan menggunakan cetakan yang diberi panas, dengan suhu 200, 250 dan 300 ℃ dengan waktu penahanan 5 menit dan juga pemberian tekanan 5 MPa, 10 MPa, 15 MPa dan 20 MPa. Pada suhu 300 °C, tekanan 10 dan 20 MPa dihasilkan briket yang padat, rapat dan memiliki nilai densitas yang tinggi.
Effect of Using a Solar Can Heater Collector on the Temperature of a Room at Several External Temperature Variations Willy Vernando; Andre Kurniawan; Refdinal Refdinal; Yolli Fernanda
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 3 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v5i3.281

Abstract

This research discusses a heating collector device which functions to warm a room that has a relatively cold temperature so as to create thermal comfort. Thermal comfort greatly influences human performance in activities in a room so that effective performance in a room can be achieved. This collector functions to collect solar heat and increase the temperature of the sun's heat which will then be channeled into a closed room. This collector is in the form of a box measuring 750x450 mm. This collector consists of cans arranged vertically which are useful as a medium for capturing heat and increasing solar heat. The measurement results show that the room heater can warm a cold room at a temperature of 22.4⁰C to 28.2⁰C. and the air heating capacity obtained is 0.24 kJ to 4.58 kJ. Penelitian ini membahas tentang alat kolektor pemanas yang berfungsi untuk menghangatkan ruangan yang memiliki suhu relatif dingin sehingga terciptanya kenyamanan termal. Kenyamanan termal sangat berpengaruh terhadap kinerja manusia dalam beraktifitas di dalam suatu ruangan sehingga dapat tercapai efektifitas kinerja di dalam suatu ruangan. Kolektor ini berfungsi mengumpulkan panas matahari serta memperbesar suhu dari panas matahari yang nantinya akan di alirkan ke suatu ruangan yang tertutup. Kolektor ini berbentuk boks yang berukuran 750x450 mm,kolektor ini terdiri dari kaleng yang disusun secara vertical yang berguna untuk media penangkap panas dan memperbesar panas matahari. Hasil pengukuran menunjukkan bahwa pemanas ruangan dapat menghangatkan ruangan yang dingin pada suhu 22,4⁰C menjadi 28,2⁰C. dan kapasitas pemanas udara yang diperoleh adalah 0,24 kj hingga 4,58 kj.
Co-Authors Adam Mandra Suwandi Akhmad Rais Ambiyar, Ambiyar Andika Putra Andre Kurniawan Andre Kurniawan Arafat, Andril Arwizet K Ashekul Islam Budi Syahri Delima Yanti Sari Desyandri Desyandri Dwi Sakti Putra DWI SURYANTO Elvira Zondra Firma Yulianis Fitri Amelia Fonny Maswija Priscilla Handrianto Handrianto Hendri Nurdin Irzal Irzal Jasman Joko Suprianto Kiwata, Takahiro La Ode Ahmad Barata Mega Oktaviani Meisuri Handayani Mochammad Haikal Muhammad Agung Pratomo Muhammad Akhbar Muhammad Riski Hidayat Muhammad Shiddiq Nelvi Erizon Nurdin Hendri Purwantono Purwantono purwantono purwantono Refdinal, Refdinal Ridhatul Arif Riky Satria Sherly Rahmayani Sri Rizki Putri Primandari Syahril Syahril Syaiful Salim Teki Haryono Usin Usin Willy Vernando Yufrizal Yufrizal Yusmaita, Eka Zainal Abadi