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RING Mechanical Engineering
Published by Universitas Islam Malang
ISSN : -     EISSN : 28285174     DOI : https://doi.org/10.33474/rm.v3i1
Core Subject : Science, Engineering,
Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
RING Mechanical Engineering (RING ME) with the ISSN number 2828-5174 (online), is a multidisciplinary scientific journal published by Mechanical Engineering, Faculty of Engineering, Universitas Islam Malang. This journal contains articles in the fields of Energy Conversion, Materials, Production and Manufacturing. This jurnal is published twice a year, namely in June and December.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 52 Documents
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Analisis Performa Pembangkit Listrik Panas Matahari Menggunakan Generator Termoelektrik Abdurrasyid, Faris; Margianto; Nur Robbi
RING ME Vol 3 No 1 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i1.20319

Abstract

In Indonesia, non-renewable fossil fuels are used to produce electrical energy which has the potential to impact the environment. Renewable energy is needed as an energy source to reduce consumption of fossil fuels. Solar thermal is one of the abundant energy sources in Indonesia, and thermoelectric generators can be used to make use of it. A thermoelectric generator can generate electricity from the sun's abundant heat energy and does not damage the environment by using a solar collector on the hot side and a heatsink on the cold side. This study aims to determine the performance of thermoelectric generators, heatsinks, solar collectors and the overall efficiency of the device. The findings of this study indicate that the energy output obtained by the collector due to variations in the sun affects the efficiency of the solar collector on the hot side of the thermoelectric generator. The efficiency of a heatsink located on the cold side of a thermoelectric generator is inversely proportional to its base heat value. The value of the temperature difference on the hot and cold sides of the thermoelectric generator fluctuates, which affects the efficiency value of the thermoelectric generator, while the useful energy and power produced by the thermoelectric generator can affect the efficiency of the system as a whole.
PENAMBAHAN OCTANE BOOSTER PADA PERTALITE TERHADAP KINERJA MESIN DAN KONSUMSI BAHAN BAKAR MESIN HONDA BEAT 2014 Yudan Kurniawan, Mohammad; Margianto; Nur Robbi
RING ME Vol 3 No 1 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i1.20320

Abstract

The purpose of this study was to evaluate the effect of adding Pertalite to fuel on engine performance and fuel consumption of Honda Beat 2014 motorcycle engines. This study used three octane booster mixtures to examine the effect of mixtures added to Pertalite fuel on engine performance of the Honda Beat 2014 In addition, the addition of an octane booster also increases fuel consumption efficiency which significantly reduces the amount of fuel consumed by the engine and produces environmentally friendly emissions when the number of octane boosters increases. Based on these findings, it was concluded that the use of Pertalite octane accelerator fuel could improve the engine performance of the Honda Beat 2014 motorcycle and reduce fuel consumption. Therefore, using an octane booster can be an attractive option for Honda Beat 2014 motorcycle owners who want to improve engine performance, optimize fuel economy, but produce emissions that are not environmentally friendly.
ANALISIS KEKERASAN DAN STRUKTUR MIKRO BAJA 304 DENGAN VARIASI HOLDING TIME Tsamroh, Dewi 'Izzatus; Pungky Eka Setyawan; Andrian Dwi Kristianto
RING ME Vol 3 No 1 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i1.20425

Abstract

Metallurgy is the science that studies the properties of metals and their alloys through the analysis of their structures. Metal structure and alloys are the determining factors of the steel microarrangement that affect metal properties. The purpose of this study was to determine the strength and hardness of steel 304. This study used an experimental method by treating the workpiece and then characterizing it to see the results. In the hardness test it was concluded that a temperature does not affect the level of hardness of a specimen. While the cooling medium greatly affects the level of hardness. The higher the viscosity of a cooling fluid, the higher the hardness formed. Microstructural testing concluded that temperature and cooling media both have an effect on the formation of pearlite and ferrite in a material. If the temperature is the same and the fluids have the same properties, then the pearlite and ferrite contents will be the same. Pearlite will easily form at high temperatures with a high viscosity of the coolant, while ferrite will easily form if the temperature is low with a high fluid viscosity.
ANALISIS PENGARUH VARIASI KATUP TETAP RPM BERUBAH DAN VARIASI RPM TETAP KATUP BERUBAH PADA POMPA SERI, PARAREL, DAN TUNGGAL Citrakara Upendra Sneha Bhandana Himawan; Johan Wayan Dika; Agus Dwi Putra
RING ME Vol 3 No 1 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i1.20428

Abstract

A pump is a tool that functions to drain, circulate and move liquid fluids by applying pressure and speed from one place to another. On internal combustion engines, the purpose of testing is to determine the performance characteristics of internal combustion engines. This research can be used as teaching material and discussion by students in the fields of pumps, gasoline motors, and diesel motors. Each test with a different treatment will give a different outcome value. The result is that in the pump test, the output value is influenced by the treatment of the throttle and engine speed, whereas in the testing of diesel and gasoline engines the output value is affected by the treatment of the visor and throttle.
ANALISIS HUBUNGAN PUTARAN KATUP DENGAN KONSTANTA PEGAS DENGAN MENGGUNAKAN PEREDAMAN Tsamroh, Dewi 'Izzatus; Jumiadi; David Ross
RING ME Vol 3 No 1 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i1.20429

Abstract

One of the problems of a machine is the vibration generated by the machine itself. Vibration is very influential on the structure and construction of the machine. One of the issues that is very important to note in these plans is the calculation of the deflection/deflection of the elements when subjected to a load. This is very important especially in terms of strength (strength) and stiffness (stiffness), where a horizontal bar that is loaded laterally will experience deflection. The deflection that occurs in elements that experience loading must be within an allowable limit. Based on the actual and theoretical research results for the Simple vibration apparatus, load and valve variations are directly proportional to the damping constant. The greater the load and valve rotation, the greater the damping constant. The beam deflection apparatus has several results, namely the load variation is directly proportional to the static deflection value. The greater the load, the greater the static deflection. Variation of distance (intermediate load point) is directly proportional to the static deflection value. The greater the distance, the greater the static deflection. Variation of distance (end load point) is directly proportional to the static deflection value. The greater the distance, the greater the static deflection. Thickness variation is inversely proportional to the static deflection value. The greater the thickness value, the smaller the static deflection. The width variation is inversely proportional to the static deflection value. The greater the width value, the smaller the static deflection.
ANALISIS HUBUNGAN ANTARA KONSTANTA PEGAS DAN DEFLEKSI STATIS DENGAN PEMBEBANAN BERBEDA TANPA PEREDAM Jumiadi; Dewi Izzatus Tsamroh; Ike Widyastuti; Arif Budiono
RING ME Vol 3 No 1 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i1.20430

Abstract

One of the most frequently encountered motions in nature is oscillatory motion (vibration). A particle oscillates when it moves periodically about an equilibrium position. A load attached to a spring that is stretched once is released, then it begins to oscillate. Basically, vibration is a technical system that contains mass and elasticity that is able to move relatively or can be said to be a movement that repeats itself at certain time intervals. Increasing technological developments show that the tools that have to do with vibrations are very diverse. One of them is the vibration that utilizes the Simple Vibration Apparatus. In the free vibration frequency experiment, from the test results without a damper with a mass of 0.47kN/m; 1.22kN/m and 3.3kN/m it can be seen that there is a big difference between the theoretical frequency value and the actual frequency value. The results of the theoretical deflection from experiments 1 - 5 have increased constantly. The greater the loading, the greater the deflection.
PENGARUH VARIASI ORIENTASI dan FRAKSI VOLUME SERAT ECENG GONDOK TERHADAP KEKUATAN UJI IMPACT KOMPOSIT SERAT ECENG GONDOK Rosidi, Izza; Mochammad Basjir; Artono Raharjo
RING ME Vol 3 No 2 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i2.21436

Abstract

Composite is a group of materials made from 2 or more materials and strengthened by certain treatments. To strengthen the composite, it can be done through Alkalization treatment, meaning that the fiber is soaked in a NaOH solution for a specified time to clean the surface of the fiber so that it will increase the cellulose content by reducing the lignin and hemicellulose content. Apart from alkalization, increasing the strength of the composite can be done by treating the layout of the fiber orientation and volume fraction. The research results show that the average impact price for water hyacinth fiber composites is water hyacinth fiber composite with a volume fraction of 30; 70 and 50 : 50, namely for volume fraction 30 : 70 is continuous vertical orientation: 2, 84 joules/mm, continuous horizontal orientation: 1.44 joules/mm, random orientation: 1, 88 joules/mm then for volume fraction 50: 50 is continuous vertical orientation: 3.69 joules/mm, continuous horizontal orientation: 2.26 joules/mm, random orientation: 3.1 joules/mm. From the data that has been obtained, it shows that the most optimal impact value is in the fiber orientation. continuous vertical with a volume fraction of 50 : 50, namely 3.69 joules/mm. In this study the volume fraction was 50; 50 has the highest impact price, fiber volume greatly influences the results of the impact test
PEMANFAATAN LIMBAH TEMPURUNG KELAPA DAN GETAH NANGKA DALAM PEMBUATAN BIOBRIKET Rahman, Hairul; Priyagung Hartono; Mochammad Basjir
RING ME Vol 3 No 2 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i2.21439

Abstract

ABSTRACTBiomass is material obtained from plants, either directly or indirectly, and used as energy or materials in large quantities. Using plantation waste, namely coconut shells which will be processed into solid fuel, namely (briquettes). The coconut shell is carbonated into charcoal which will be mashed into a charcoal surge with mesh size 40, mesh 60 and mesh 80. Using charcoal powder as much as 28 grams, 26 grams, and 22 grams which will be mixed with nagka sap as much as 7 grams, 8 grams, and 12 grams. Briquettes are printed using hollow iron with a size of 3x3 cm and will be dried in the sun for 4 days of drying. Test parameters include moisture content test, combustion rate test, calorific value test. The results showed that the briquettes in mesh 80 with the addition of jackfruit sap adhesive of 28 grams of charcoal and 8 grams of jackfruit sap had the best calorific value of 6643.84 ccal/grammwith a burningg rate of 0.221 grams/minutee and a moisture content of 8.71%.Keywords : Biomass, Briquettes, Coconut Shell, Jackfruit Sap
PENGARUH LAPISAN SERAT dan RESIN EPOXY terhadap KEKUATAN UJI IMPACT KOMPOSIT SERAT ECENG GONDOK Zidan Septian Adisurya; Priyagung Hartono; Cepi Yazirin
RING ME Vol 3 No 2 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i2.21495

Abstract

A composite is a material structure formed from a combination of two or more materials, processed on a macroscopic scale and physically fused. To improve the characteristics of natural fibers in composites, a NaOH alkalization process is carried out which influences the fiber composites. Real experimental strength of the composite. The results showed that Alkalization of NaOH in water hyacinth fiber with variations in resin and fiber fractions (40%, 50%, 60%) and concentration (5% and 10%) affected the impact value. Specimens with a 60% resin and fiber fraction that experienced 5% alkalization showed the lowest impact, while a 40% resin and fiber fraction that experienced 10% alkalization had the highest impact. These findings indicate that NaOH alkalization significantly affects water hyacinth fibers, potentially increasing strength due to the removal of lignin, hemicellulose, and pectin. Loss of these components can make the fiber more brittle and susceptible to damage. In testing the resin and fiber fractions (40%, 50%, 60%) with varying concentrations (5% and 10%) when mixing fiber with matrix, it was found that the 60% resin and fiber fraction with a concentration of 5% had the lowest impact strength of 61 J/mm2, while the resin and fiber fraction of 40% with a concentration of 10% has the highest strength of 82 J/mm2. The results of this research highlight the importance of optimizing the volume fraction of fiber and epoxy matrix to improve the impact characteristics of water hyacinth fiber composites.Keywords: composite, alkalization, volume fraction, fiber, water hyacinth
ANALISIS PENGARUH PERLAKUAN PANAS HASIL PENGELASAN GMAW BAJA ST - 40 TERHADAP KEKERASAN DAN STRUKTUR MIKRO Muhammad Ikhwanul Munir; Priyagung Hartono; Artono Raharjo
RING ME Vol 3 No 2 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i2.21502

Abstract

ABSTRACT Currently, many welding elements are involved in construction, especially in the field of design, because welding is one way of making connections, and to obtain good quality connections requires the skills of technically advanced welders. One welding method that is often used in the manufacturing industry is Gas Metal Arc Welding (GMAW). This welding uses noble gases and carbon dioxide gas as a shield for the arc and molten metal from atmospheric influences. After testing the micro Rockwell hardness and micro structure, data was obtained that could be analyzed further. In this study, the material was ST 40 steel with a thickness of 10 mm, welding was carried out using GMAW welding with butt join welding and 1G position. Hardness testing uses the micro rockwell method at each time variation of 60 minutes, 90 minutes and 120 minutes at the Weld metal point and HAZ (Heat Affected Zone) with a maximum load of 650 g. Micro Rockwell hardness test results from the three time variations, the highest hardness value was found in welding with a time of 120 minutes with a value for weld metal of 71.3 HRN and a HAZ of 62.3 HRN. The lowest hardness value was found in welding using a time of 60 minutes with a value for weld metal of 68.6 HRN and HAZ of 59.1 HRN. Keywords: GMAW Welding, Rockwell Hardness, Microstructure

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