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All Journal Jurnal MEKANIKAL Turbo : Jurnal Program Studi Teknik Mesin Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin
Nurul Iman Supardi
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Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PENGGUNAAN PLC DALAM PENGONTROLAN TEMPERATUR, SIMULASI PADA PROTOTYPE RUANGAN Erinofiardi, Erinofiardi; Supardi, Nurul Iman; Redi, Redi
Jurnal MEKANIKAL Vol 3, No 2 (2012)
Publisher : Jurnal MEKANIKAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (429.99 KB)

Abstract

Programmable Logic Control is a automatic control device which has memory for storing input program to control devices or processes by using input module and outpu in digital or analogue. This research conduct using of PLC to control temperature in prototype room, by using Zelio logic  smart relay, and module sensor LM35. Prototype room is made from glass, with dimension 60mm x 20mm x 20mm and has roof like a house, and 4 fans are put on the long side of the room. From this experiment, based on temperature which set on FBD program, room temparature can be controlled in 320C succesfully.
PEMANFAATAN INTERNET OF THINGS UNTUK MONITORING SUHU DI BPPT–MEPPO Ikhwanusshofa, Muhammad; Nuramal, Agus; Supardi, Nurul Iman
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 4 No. 1 (2020): April 2020
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v4i1.13274

Abstract

Proses monitoring suhu merupakan hal yang sangat penting untuk dilakukan khususnya dalam dunia industri. Dengan monitoring suhu, diperoleh data suhu yang dapat digunakan untuk melakukan quality control dan analisa pemecahan masalah ketika terjadi suatu kegagalan. Pada artikel ini akan diambil data suhu dan kelembaban di ruang workshop BPPT-MEPPO dengan menggunakan module DHT11 yang sebagai sensor suhu dan kelembaban. Sinyal yang diterima oleh DHT11 akan diolah oleh Raspberry Pi 3 dan dikirimkan ke ThingSpeak sebagai server penerima data. Setelah data masuk ke ThingSpeak, data pengukuran yang telah dilakukan dapat dilihat menggunakan handphone ataupun komputer yang mempunyai akses internet. Data yang diperoleh selanjutnya ditampilkan dalam bentuk grafik suhu dan kelembaban vs waktu. Tampilan grafik tersebut dapat diakses secara mobile dengan perangkat telefon yang terhubung dengan akses internet.
PENGARUH PERENDAMAN DALAM LINGKUNGAN AIR LAUT TERHADAP SIFAT MEKANIK KOMPOSIT BERPENGUAT SERAT KEVLAR SEBAGAI BAHAN BAKU MATERIAL FLOAT PESAWAT AMPHIBI Supardi, Nurul Iman; Adiansyah, Zeta; Hestiawan, Hendri
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 4 No. 2 (2020): Oktober 2020
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v4i2.18393

Abstract

Kevlar fibers have several advantages compared to other synthetic fibers, such as high tensile strength and relatively low density because it is composed of hydrogen bonds. This study aims to compare the mechanical strength of Kevlar fiber reinforced composites before and after immersion in a seawater environment as raw material for amphibious aircraft float materials. The materials used in this research consist of kevlar fiber, vinylester resin and methyl ethyl ketone peroxide catalyst. Composites manufactured by the vacuum infusion technique. The fibers were arranged in a mold, then a vacuum process was carried out to attract the resin stream. Tensile and shear tests were carried out before and after immersing the composites in a sea water environment at room temperature for 264 hours. Tensile test specimens refer to the ASTM standard of D3039, while the shear test specimens refer to the ASTM standard of D5379. The tensile strength of the kevlar fiber reinforced composites before immersion is 421.2 MPa. After immersion in a seawater environment, the tensile strength of the composite decreased to 389.3 MPa or decreased by 7.5%. Meanwhile, the shear strength of Kevlar fiber reinforced composites after immersing in a sea water environment did not change significantly from 14.6 MPa to 14.46 MPa or a decrease of 1.6%.
Lube Oil Cooler Performance Analysis Before and After Maintenance Outage at PLTGU Saputra, Andrian Nurul; Puspawan, Angky; Supardi, Nurul Iman
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 5 No. 2 (2021): Oktober 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v5i2.20170

Abstract

This work has been done in one of the gas and steam power generating units in the Southern Sumatra. Lube oil cooler is a cross flow compact heat exchanger that functions to release the heat carried by lubricating oil flowing through the shell side to the tube side with water cooling fluid where each liquid is separated in the lube oil cooler the ratio of the heat transfer coefficient on the shell and pipe sides tube and the effectiveness of heat transfer that occurs. It can be concluded that before maintenance outage the logmean temperature difference value (LMTD) was 15.48 oC while after maintenance outage the LMTD value decreased to 10.52 oC. The effectiveness value before maintenance outage was 50.62%, whereas after maintenance outage was carried out the average value increased by 59.61%. So that a good performance is in the condition after the maintenance outage.
KARAKTERISTIK AERODINAMIKA PESAWAT AMFIBI DENGAN METODE COMPUTATIONAL FLUID DYNAMICS (CFD) Saputra, Meri Andani; Supardi, Nurul Iman; Suandi, Agus
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 7 No. 1 (2023): April 2023
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v7i1.30097

Abstract

Aerodynamics is the study of the flow field and the forces caused by relative motion between the aircraft (aircraft body or other parts) and the surrounding air. The study of aerodynamics involves calculating the speed, temperature and pressure that occur due to the relative motion of an object in the air. The pressure and frictional forces acting at every point on the surface of an object cause lift, drag, and side forces. One way to calculate the aerodynamic characteristics of the aircraft is by using the CFD method. Computational fluid dynamics or CFD is the analysis of systems involving fluid flow, heat transfer and related phenomena such as chemical reactions by means of computer-based simulations. The goal to be achieved is to determine the correlation of the lift coefficient and drag coefficient of the seaplane, it is necessary to carry out a CFD simulation. The research methodology was carried out using Computational Fluid Dynamics (CFD) simulations at speeds of 20 m/s, 40 m/s and 60 m/s and Angle of Attack 0°, 5°, 10°, 15°, 20°, 25° dan 30°. The simulation results show that the lowest value is at AoA 0^° and the highest is at AoA 30°. for each speed, but at a speed of 20 m/s the highest value is at AoA 25°because at AoA 30° the value decreases causing a stall . value increases with each variation of speed and angle of attack.
PROSES PRODUKSI KOMPONEN DUDUKAN WINCH KENDARAAN KHUSUS TAKTIS MAUNG 4X4 Sitinjak, Heryanto; Supardi, Nurul Iman; Bismantolo, Putra
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 7 No. 2 (2023): Oktober 2023
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v7i2.34058

Abstract

In accelerating production, the manufacturing process uses modern equipment such as machines and implements a structured program to carry out production. This study aims to determine the process of making winch mount components for Maung 4x4 special tactical vehicles. The manufacturing process begins with designing the product, determining the specifications of the material from which the product is made. After that, the raw material is modified through a manufacturing process to be formed into the required parts. To speed up and simplify the production process, a CNC (Computer Numerical Control) machine is used which works automatically according to the program made. To produce a desired product, of course, must go through several stages. In production the manufacturing process requires machining stages. This is because the desired product cannot be produced through only one machining process. Manufacturing steps, namely, making component designs, material verification (material verification) cutting processes, bending processes, and welding processes.
ANALISA NILAI KALOR BAHAN BAKAR BOILLER FIBER DAN CANGKANG Nopita, Dian; Nuramal, Agus; Supardi, Nurul Iman
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 8 No. 1 (2024): April 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v8i1.36547

Abstract

Fiber and shell are widely use solid fuels in steam boilers. These fuels are waste products generated from palm oil processing. The purpose of this study is to analyze the heating value of fiber and shell. This study used 12 fuel samples, consisting of 3 pure fiber samples, 3 pure shell samples, 3 mixed samples with a composition of 90% fiber and 10% shell, and 3 mixed samples with a composition of 80% fiber and 20% shell, to analyze the calorific value. The weight of each sample is 1 gram. Calorific value is used to determine the high calorific value. The use of different samples produces different heating values, resulting in different high heating values. These different high heating values are then used to determine the low heating value, resulting in different low heating values. In this study, each boiler fuel has a different Low Heating Value (LHV). The highest low heating value is owned by pure fiber fuel with a value of NA (Not Available). While the smallest low heating value of boiler fuel is owned by a mixed type consisting of 90% fiber and 10% shell with a value of 179358,51 Kj/Kg.
DESAIN DASAR MESIN INJECTION MOLDING UNTUK PROSES CASTING SAMPEL PROPELAN PADAT MENGGUNAKAN SOFTWARE SOLIDWORKS Febriyanto, Ady; Supardi, Nurul Iman; Yulia Azatil Ismah
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 9 No. 1 (2025): April 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v9i1.38986

Abstract

The injection molding machine for the solid propellant sample casting process is a tool for making a sample in the form of a solid propellant sample plate, this tool is designed to make work easier when carrying out the process of making solid propellant samples. The needs of the propellant industry in Indonesia are very large and important considering the need to develop solid propellant samples and munitions for the national arsenal, namely to promote and facilitate the exchange of technical information and programs. itself consists of two molds with sizes, namely 25cm diameter, 10cm high and 17cm diameter, 5cm high, frame, cember, hydraulic. The most important component in solid propellant sample injection molding is the solid propellant sample mold. Therefore, it must be strong and sturdy to hold the solid propellant sample so that it does not come out during printing with hydraulic pressure.The manufacture of solid propellant injection molding was assisted with Solidwork Software in this research.Keyword: Rocket, Propellant, injection molding.
DESAIN DAN SIMULASI KEGAGALAN STIK MANDRIL ROKET RX-100 PADA PROSES DECORING MENGGUNAKAN SOFTWARE SOLIDWORK Setiawan, Ahmad Yudi; Supardi, Nurul Iman; Ismah, Yulia Azatil
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 8 No. 2 (2024): Oktober 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v8i2.39390

Abstract

The substances used in rocket propellant have the ability to produce molecular gas at very high pressure and temperature during combustion. This material has great energy, and can explode so it is widely used in firearms, explosives and rockets. During the process of making rocket propellant, there is a process, namely the decorating process, which is the process of withdrawing the mandril stick from the propellant mold tube. The mandril stick is a component found at the end of the mandril itself, used as a link between the electric pulley and the mandril which is useful for pulling the mandril out of the mold tube, so that the propellant forms grains according to the mandril that has been printed in the propellant mold tube. The manufacture of mandril sticks is assisted by Solidwork software. In this research, a simulation was carried out on the mandril stick in order to determine the distribution of von Mises stress, displacement, and safety of factors on the RX-100 rocket mandril stick.
DESAIN DAN SIMULASI PEMBEBANAN STATIK SASIS KENDARAAN LISTRIK OTONOM TANPA KEMUDI UNTUK INDIVIDUAL MOBILITY MENGGUNAKAN SOFTWARE SOLIDWORK ricky, 240103; Witanto, Yovan; Supardi, Nurul Iman; Syabanda, Yukhi Mustaqim Kusuma
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 8 No. 2 (2024): Oktober 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v8i2.39520

Abstract

The chassis or frame is the internal framework that serves as the basis for producing an object, supporting parts such as the engine or electronic components of the object. The chassis can be likened to the skeletal structure of animals.Electric cars are vehicles powered by electrical energy stored in batteries or other energy storage devices. Electric cars were very popular in the late 19th and early 20th centuries, but their popularity waned due to advancements in internal combustion engine technology and the decreasing cost of gasoline-powered vehicles. SolidWorks is a software application based on automation for creating 3D solid models to explore the use of Windows graphics. Using this software is not very difficult, depending on the user's willingness as an engineer to learn it. This software is highly useful in engineering for creating both 3D and 2D models. Additionally, SolidWorks can perform simulations that are highly beneficial for conducting research on machines or materials.
Co-Authors Adiansyah, Zeta Afdhal Kurniawan Mainil Agus Nuramal Agus Nuramal Agus Suandi, Agus AM Saifutaqi Fatwa Mayfi Angky Puspawan Arif Rahman Hafiz Bismantolo, Putra Erinofiardi Erinofiardi Febriyanto, Ady Gunawan, Agustin Hendri Hestiawan Ikhwanusshofa, Muhammad Ismah, Yulia Azatil Mubarok, Abdul Latif Nanda Nopita, Dian Redi Redi ricky, 240103 Saputra, Andrian Nurul Saputra, Meri Andani Setiawan, Ahmad Yudi Sitinjak, Heryanto Sulthan, Rifki Syabanda, Yukhi Mustaqim Kusuma Winata, Alben Sindhu Yovan Witanto Yulia Azatil Ismah