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Jurnal Teknik Mesin
Published by Institut Teknologi Padang
ISSN : 20894880     EISSN : 25988263     DOI : https://doi.org/10.21063/jtm
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
JTM is a journal aims to be a peer-reviewed platform and an authoritative source of information. We publish original research papers, review articles and case studies focused on mechanical engineering and other related topics. All papers are peer-reviewed. JTM is managed to be issued twice in every volume (April and October). The Scope of JTM is: Energy Science and Engineering Applied Mechanics and Materials Design, Manufacturing and Product Development Control, Instrumentation and Robotics
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 247 Documents
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The Vegetable Oil as an Alternative Fuel for Diesel Motors Dimas Noor Ardianto
Jurnal Teknik Mesin Vol 13 No 2 (2023): Jurnal Teknik Mesin Vol.13 No.2 October 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2023.v13.i2.32-36

Abstract

It is estimated that fossil fuels will run out if they are exploited on a large scale. In today's developments, there are many vehicle innovations that use diesel fuel. This dependency can be overcome with bio diesel. Various wastes resulting from the processing of agricultural materials have great potential to be processed into alternative fuels to replace coal and fuel oil. These alternative fuels include bioethanol, biodiesel, biogas and biobriquettes. In this research we discuss biodiesel, biodiesel is an alternative fuel which is usually made from agricultural plants such as oil palm. However, this fuel usually cannot be pure oil, usually mixed with diesel. This mixed fuel has not been proven to be good for use in vehicles in the sense that this fuel might affect the torque of the vehicle. In this research we will test which mixture is the best or closest to fossil fuel.
The Effect of Laser Setting on Engraving Results of A CNC Laser Engraver Machine Anrinal Anrinal; Farza Anugrah Pratama; Asmara Yanto
Jurnal Teknik Mesin Vol 13 No 2 (2023): Jurnal Teknik Mesin Vol.13 No.2 October 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2023.v13.i2.37-41

Abstract

This research aims to determine the effect of laser settings on the engraving results of a CNC Laser Engraving machine on plywood media. Controlling the movement of the CNC laser machine spindle using Arduino UNO. Testing was carried out by setting the laser power (S-Max) scales are 100, 200, 300, 400, 500 and 600. Position variations of laser head above the plywood media are 3 cm, 5 cm and 7 cm. The test results show that low S-Max scale will produce unclear dotted lines if graving the circle shape and the greater S-Max scale, the thicker the line will be. The lower position of the laser head above the surface of the plywood media, the wider the graving size (engraving line width). The best engraving results were obtained with S-Max scale is 400 and position of laser head above the plywood media is 5 cm with fairly stable and clear engraving lines.
Stress Analysis of Elevator Chain Pin in PT. Semen Padang Rozi Saferi; Karnova Yanel; Hamdani Akmal
Jurnal Teknik Mesin Vol 13 No 2 (2023): Jurnal Teknik Mesin Vol.13 No.2 October 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2023.v13.i2.42-48

Abstract

The chain pin on the elevator chain is the most important component in the chain in transmission system which function as an axle on the chain. Chain pin is the part that is in direct contact with the sprocket teeth. This analysis aims to determine the stress that occurs in the chain pin by calculating the stress and using the autodesk inventor software. Data collection is done by measuring the dimensions of the elevator chain, the calculating the chain pin analysis using equation according to theory and using autodesk inventor for better analysis result. The result of the stress analysis on the chain pin with a diameter of 23 mm are 16.93 MPa while the result of the analysis using autodesk inventor software are 1.43 MPa. So that the stress resulting from the two analysis does not exceed the maximum allowable stress of 568.78 MPa.
Development of AFRO Water Treatment Equipment Hafni Hafni; Dedi Wardianto; Asmara Yanto
Jurnal Teknik Mesin Vol 13 No 2 (2023): Jurnal Teknik Mesin Vol.13 No.2 October 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2023.v13.i2.49-53

Abstract

Water is a source of life, but it is very easily polluted because water is known as a universal solvent and is able to dissolve many substances. Water pollution is the pollution of water bodies (seas, lakes, rivers, groundwater) caused by human activities. To obtain water that meets water quality standards, it must be supported by an appropriate water treatment system, one of which is the water treatment tool in this research, called AFRO. AFRO works with a reverse osmosis filtration aeration process. Previously, AFRO was developed to treat raw water containing dissolved impurities. However, the results are less than satisfactory, so it needs to be developed further to meet the need for clean water that can be utilized by the community. The development of AFRO in this research is based on the House of Quality (HQ) matrix. From this HQ matrix, a presentation of development priorities was obtained from the previous one in the form of design changes of 16.1%, material changes of 9.6%, processing processes of 14% and energy changes of 9.2%. From the tests that have been carried out, this time AFRO can process raw water from dissolved and insoluble impurities. This tool is also equipped with a solar energy utilization system. The AFRO water treatment process developed consists of (1) chemical process, (2) aeration, (3) filtration, (4) reverse osmosis and (5) disinfection using ultra violet (UV) light.
Influence of Quenching Media and Holding Time on Hardness and Microstructure of AISI 1045 Tama, Bayu Widias; Rosidah, Afira Ainur
Jurnal Teknik Mesin Vol 14 No 1 (2024): Jurnal Teknik Mesin Vol.14 No.1 April 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2024.v14.i1.8-12

Abstract

AISI 1045 material is carbon steel which is widely used in the industrial world as a material for making gears, bolts, and axles, however, in its use AISI 1045 steel has shortcomings in its hardness value. When used, AISI 1045 steel must be hardened through a hardening heat treatment process so that it is more capable of being used. It is important to carry out the hardening process so that the material has greater hardness, this property is related to wear resistance. This research was carried out with the aim of analyzing the effect of variations in holding time and variations in cooling media on the hardness and microstructure of AISI 1045 Steel. The heating temperature used was 840⁰C with a holding time of 17 and 22 minutes using air, oil, and grease cooling media. The method used to measure hardness in this research is the Brinell hardness method. The results of the research showed changes in the microstructure from initially ferrite and pearlite to bainite and martensite, the highest hardness was obtained in the specimen with oil quench media with a holding time of 17 minutes with a value of 643.35 kgf/mm2 and the lowest hardness value was obtained in the specimen with quench media air with a holding time of 22 minutes with a value of 153.44 kgf/mm2.
Energy Audit of Lighting and Air Conditioning Systems in Baby Clothing Stores Anis Aprilia; Ahmad Farhan; Awaludin Martin
Jurnal Teknik Mesin Vol 14 No 1 (2024): Jurnal Teknik Mesin Vol.14 No.1 April 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2024.v14.i1.13-20

Abstract

An energy audit is a method used to calculate the energy use of a building and find solutions to save energy. Things that can be achieved through this audit process are saving or reducing operational costs for business entities, industry or others, with energy savings also contributing to nature conservation and efficient use of energy which will increase the contribution to the company both financially and the lifespan of the equipment used. longer. From the analysis of the potential for energy savings through audits and conservation, it was concluded that energy use in baby clothing stores is wasteful. This can be seen based on the calculation of the Pre-Eco IKE value, which is 239.6 btu/h. After saving with the ECO option which can be done, the Post-Eco IKE value is 173.1 btu/h, where there has been a decrease in energy consumption from the wasteful category to somewhat wasteful.
Utilization of Areca Nut Fibers (areca catechu l.) and Polyvinyl Chloride (PVC) as A Sound Absorbing Material Nurul, Nurul Mutaharah; Rauf, Nurlaela
Jurnal Teknik Mesin Vol 14 No 1 (2024): Jurnal Teknik Mesin Vol.14 No.1 April 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2024.v14.i1.27-32

Abstract

Noise refers to unwanted sounds emanating from production equipment or work equipment, which are potentially harmful. The most common factor affecting workers is noise, which can impair hearing. The impact can be both psychological and biological problems. To solve this problem, noise-absorbing materials that can be installed in various places are needed. One of the proposed solutions is the development of acoustic materials made from easily available natural fiber composites, such as areca nut fibers. Areca fibers are integrated as a base material for acoustic materials that aim to reduce outdoor noise or from building structures. In this study, 2 testing methods were carried out, namely the Sound Absorption Coefficient (α) Test and the Fourier Transform Infrared (FTIR) Test. The Sound Absorption Coefficient Test aims to measure the ability of materials to absorb sound energy, while FTIR is used to analyze sample components without damaging them. The sound absorption coefficient test results showed that the samples were able to absorb sound at a frequency of 800-1600 Hz. After the areca fiber was treated with NaOH, there was a change in the O-H group which indicated a reduction in lignin content in the areca fiber. This O-H group shift causes an increase in adhesion between the matrix and filler in the composite.
Design Development of Coffee Roaster with Quality Function Deployment Method Satria, Fajri Ilham; Saferi, Rozi; Yanto, Asmara
Jurnal Teknik Mesin Vol 14 No 1 (2024): Jurnal Teknik Mesin Vol.14 No.1 April 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2024.v14.i1.1-7

Abstract

This research aims to identify and determine the level of consumer needs regarding the coffee roaster and to compile a House of Quality (HOQ) to determine dominant design needs and priority technical characteristics of the machine. The benefit of this research is to be able to develop the coffee roaster and to maximize machine use and time efficiency in roasting coffee. The research method used is the Quality Function Deployment (QFD) method by conducting field surveys aimed at finding out the level of consumer needs by distributing questionnaires and looking for information about what the need to make it easier to roast coffee beans. The location of this research was carried out in several café or coffee shop in Padang City. Based on the column weight, it was found that the strongest priority in the technical response was the design aspect with a value weighting of 38.64, followed by the material criteria aspect with a value weighting of 66.1, then time and energy efficiency with values ​​weighting of 30.34 and 15 respectively.. The design for developing coffee roaster according to consumer needs lies in a more affordable price which makes the use of materials and sizes of horizontal sangria equipment cheaper compared to conventional coffee roasting equipment.
The Effect of Firmware Settings on Engraving Results of a CNC Laser Engraver Machine Anrinal, Anrinal; Zamhari, Muhammad Apri; Yanto, Asmara
Jurnal Teknik Mesin Vol 14 No 1 (2024): Jurnal Teknik Mesin Vol.14 No.1 April 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2024.v14.i1.21-26

Abstract

This study aims to determine the effect of setting the firmware on the time and results of the engraving and to analyze the impact of the engraver variable on the CNC Laser Engraving machine. The test results of the cnc laser engraving firmware setting were obtained from several stages of testing the predetermined settings such as the Axis maximum rate and Axis acceleration settings, in order to find the appropriate Axis maximum rate and Axis acceleration settings for the laser engraving process. Tests with the Axis maximum rate setting are carried out with variables 600 mm/min,1200 mm/min,1800 mm/min aiming to find the ideal speed, Tests with Axis acceleration settings are carried out with variables 20 mm/s2, 40 mm/s2, 60mm/s2. aims to find the ideal acceleration by looking at the stability of the results and comparing the test data. axis maximum rate ($110 and $111) 600 mm/min and axis acceleration ($120 and $121) 40 mm/s2, taking into account the engraving time and the resulting clean, non-blur engraving results and the resulting engraving line width. Based on the study, it is recommended for users to be careful in setting the firmware for maximum and clean results. Based on the speed and acceleration test data on the engraving scale, the faster the engraving process, the smaller and blurry the resulting scale (width of the engraving) will be.
The Effect of Variation in the Composition of Candlenut Shell Charcoal Powder/Epoksi Composite on Hardness Value, Friction Coefficient and Specific Wear Rate Pratiwi, Putri; Nurzal, Nurzal; Syaifullah, Muhammad; Perdana, Mastariyanto
Jurnal Teknik Mesin Vol 14 No 1 (2024): Jurnal Teknik Mesin Vol.14 No.1 April 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2024.v14.i1.33-37

Abstract

Organic waste processing by utilizing the candlenut shell charcoal has great potential to produce useful materials. The large seed and skin ratio makes candlenut shells very abundant during the harvest season. Candlenut shells are known as agricultural waste even though they have great potential to be utilized because of their good mechanical properties. The purpose of this study was to determine the effect of composition variations in candlenut shell charcoal powder composites on their mechanical properties such as hardness values, friction coefficients and wear rates. The materials used are candlenut shell charcoal powder and epoxy, with a fraction ratio of 55%: 45% wt, 60%: 40% wt, 65%: 35% wt, 70%: 30% wt, 75%: 25% wt, 80%: 20% wt, 85% : 15% wt. The size of the candlenut shell charcoal powder used is 841-1190 μm. The results of the study showed the highest hardness of 74.94 HRN, a wear value of 0,000077407407 g/mm2, and the friction coefficient of 0.2108.

Page 22 of 25 | Total Record : 247

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