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Turbo : Jurnal Program Studi Teknik Mesin
Published by Universitas Muhammadiyah Metro
ISSN : 23016663     EISSN : 2477250X     DOI : https://doi.org/10.24127
Core Subject : Engineering,
Mechanical Engineering
TURBO ISSN (print version) 2301-6663 & ISSN (online version) 2477-250X is a peer-reviewed journal that publishes scientific articles from the disciplines of mechanical engineering, which includes the field of study (peer) material, production and manufacturing, construction and energy conversion. Articles published in the journal Mechanical include results of original scientific research (original), and a scientific review article (review). Mechanical journal published by the Department of Mechanical Engineering, Faculty of Engineering, University Muhammadiyah of Metro for publishing two periods a year, in June and December with the number of articles 14-20 per year . Editors receive manuscripts in mechanical engineering from various academics, researchers and industry practitioners.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 661 Documents
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Analisis DSSC menggunakan mulberry powder dan buah naga sebagai fotosensitizer Nurlaila Rajabiah; Dwi Irawan
TURBO [Tulisan Riset Berbasis Online] Vol 11 No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2348

Abstract

Fabrication prototype of DSSC (Dye-Sensitized Solar Cell) using mulberry powder from mulberry leaf extract (Morus Alba L.) and dragon fruit (Hylocereus Polyrhizus) as photosensitizers has been carried out. The test was carried out by testing the I-V characteristics at a light distance of 10, 20 and 30 cm from the material sample. The test results show that the chlorophyll of mulberry and dragon fruit is capable of producing an electric current which is a characteristic of the resistance of organic materials. In DSSC with mulberry powder dye, the greatest power was found at a halogen lamp distance of 10 cm with a power of 257.77 mW. Whereas in DSSC with red dragon fruit flesh dye, the greatest power was obtained at 162.35 mW with the halogen lamp distance from the DSSC device being 10 cm. DSSC testing using mulberry powder and dragon fruit showed that the power produced on mulberry powder leaves was higher than dragon fruit. The results of the I-V characteristic test on the DSSC device show a linear graph.
Metalurgi serbuk magnesium untuk aplikasi scaffold tulang mampu terdegradasi Sulis Dri Handono; Mafruddin Mafruddin; Tri Cahyo Wahyudi; Ardian Prayoga; Ilyas Shodikin; Arif Ardiyansah
TURBO [Tulisan Riset Berbasis Online] Vol 11 No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2368

Abstract

Healing of bones damaged by accidents or other factors can be done by creating artificial bone structures or bone scaffolds that can initiate the growth of bone tissue and help support bones so they can function. The process of making bone scaffold can be done by powder metallurgy sintering process with magnesium material. The purpose of this study was to determine the effect of variations in sintering temperature and compaction pressure in the magnesium powder metallurgical sintering process on the compressive strength and microstructure applied to degradable bone scaffolds. The research method used is experimental method by making and testing powder metallurgical magnesium material. The powder metallurgy process was carried out with various sintering temperatures of 350°C, 400°C and 450°C and variations of compaction pressure, namely 231 MPa, 309 MPa and 386 MPa. The results showed that variations in sintering temperature and compaction pressure affected the compressive strength and microstructure. The sintering temperature of 450°C and compaction pressure of 386 MPa resulted in the lowest pore percentage rate of 15.14% and the highest compressive strength of 80.26 MPa.
Analisis optimasi topologi desain support bracket pada steering main shaft mobil TITEN EV-2 Dinasti Achmad Tristanto; Santoso Mulyadi; Muh. Nurkoyim Kustanto; Agus Triono; Intan Hardiatama
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2388

Abstract

The KMHE competition which focuses on optimizing energy in developing cars is held as a form of contribution to overcoming the problem of dwindling energy sources. To get a cell phone with low energy consumption, one alternative is to design a cell phone as often as possible. This research examines the effectiveness of topology optimization methods in making lightweight component designs while maintaining the ability to accept loads when applied. The components that are being optimized are the support brackets on the main shaft steering of Car TITEN EV-2 which are produced using additive manufacturing with PLA+ materials. The load borne by the design is the load when the car is braking and turning. Two Topology Optimization experimental methods were carried out based on the loading arrangement. The first method is carried out by combining two topological optimization results based on loading to produce the final design. The second method is carried out by applying the two loadings simultaneously to the TO process. As a result, the second TO method showed very good results compared to the first method and was redesigned to produce a new design that was ready for use. The results of the new design have a mass of 34.25% lower than the original design. The FEA simulation results also show the results of increasing design strength after topology optimization. The maximum von-mises voltage drop of the new design in the case of braking, turning and combined loading (braking and turning) respectively is 12.56 MPa, 11.64 MPa and 17.99 MPa compared to the original design which is 30.16 MPa, 26.19 MPa and 51.9 MPa.
Pemanfaatan dinding sebagai permukaan kondensasi untuk meningkatkan kinerja solar still double slope Nova Risdiyanto Ismail; Purbo Suwandono; Dadang Hermawan; Frida Dwi Anggraeni
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2439

Abstract

Indonesia is an archipelagic country that often experiences drought, especially in the dry season. In the dry season, there is very abundant solar and seawater energy, so to overcome the problem, you can use solar still technology that utilizes solar energy to process seawater into condensate / fresh water economically. Various efforts are made to optimize the performance of solar stills, in this case the study aims to utilize the wall as a condensation surface to improve the performance of solar still double slope. The study was conducted experimentally by comparing: 1. Solar still double slope without utilizing the wall as a condensing surface, 2. Solar still double slope by utilizing the north side wall as a condensing surface, 3. Solar still double slope by utilizing the south side wall as a condensation surface, and 4. Solar still double slope by utilizing the north and south side walls as condensing surfaces. The results of the study using solar still double slope by utilizing the north wall as a condensing surface obtained the highest productivity of 1966 ml and the highest efficiency of 68.58%.
Pengaruh Perendaman Bambu Dengan Air Laut Terhadap Kekerasan dan Laju Keausan Komposit Kampas Rem Sunardi Sunardi; Hermawan Susanto; Rina Lusiani; Iman Saefuloh; Hamdan Akbar Notonegoro; Moh. Fawaid
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2444

Abstract

Bamboo is a natural material that is widely found in South Banten. Using bamboo as an alternative material for manufacturing brake pads is interesting to research. Bamboo resistance to attacks of organisms is so low that it is necessary to give initial treatment. Preservation of bamboo sticks is done by soaking them in seawater. This immersion is determined for 15 and 30 days. The comparison of the composite constituent composition is 30% bamboo fiber, 28% bamboo particles, 2% zinc, and 40% epoxy resin. Compaction pressure is carried out by 400 kg/cm2 for 10 minutes. The sintering process is carried out at a temperature of 150 °C for 60 minutes. From this research, it is known that the immersion of bamboo stems in seawater tends to decrease the hardness and the wear rate of composites.
Optimization of hardness test results in welding dissimilar metal S304 H and Incoloy 800H Hendra Dwipayana; A. Novianda
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2529

Abstract

The paper is written fully in Bahasa Indonesia (except the abstract is written in Bahasa Indonesia and English) using Times New Roman font type, 12 font size and single row space. The paper size is A4 (21 × 29.7 cm) and the author is recommended not to write more than 10 pages. The main article content covers abstract, introduction, literature review, method, result, and conclusion. Pictures, tables and equations can be included in the article. Top, bottom, and right / left margin of the paper are 2.54 cm, respectively. The number of words in the abstract is around 200 words. The abstract should mention briefly the background, objectives, method, and main conclusions. Following the abstract, write down five keywords for indexing. An unusual abbreviation should be defined clearly after the first mention.
Eksperimental pembakaran droplet pengaruh komposisi asam lemak dan sifat fisika kimia minyak kapas dan jarak pagar terhadap karakteristik nyala api Dony Perdana
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2530

Abstract

Depletion of fossil fuels is required to find alternative fuels that are environmentally friendly and sustainable. This research has been conducted to provide pieces of information on the characteristic of flame on fatty acid content and physicochemical properties of cottonseed oil and jatropha curcas. Droplets combustion of vegetable oil was used in this test, with droplet diameters of 0.3-0.4 mm, which were placed in a K-type thermocouple, then heated with a heating wire. Data collection includes flame evolution, temperature, height and ignition delay time. The results showed that jatropha curcas oil produced a longer flame time of 1206 milliseconds and a temperature of 763°C higher than cottonseed oil. The highest flame produced by cottonseed oil was 53.55 mm, while jatropha oil was 50.20 mm. Jatropha curcas oil has a shorter ignition delay than cottonseed oil, 9063 milliseconds and 11375 milliseconds, respectively. Content of various fatty acids and physicochemical properties of vegetable oils fuel affect the characteristics of flames resulting from on combustion process.
Penggunaan bahan bakar terbarukan (biodiesel-hydrogen) pada mesin Diesel Dual Fuel untuk mendukung Energy Transition di Indonesia Kuntang Winangun; Atok Setiyawan; Bambang Sudarmanta; Ghulam Asrofi Buntoro; Robi Etdji Pangestu; Anas Nurgito; Tinovia Prasetyo
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2532

Abstract

Increasing demand for oil as a fuel and declining production in refineries led to a nationwide fuel oil shortage. Hence compelling academics to develop answers, renewable energy is one of the proposed options. Compression ignition machines utilize renewable fuels such as biodiesel, crude palm oil (CPO), and hydrogen gas. Using biodiesel without modifying the engine can result in decreased thermal efficiency and increased smoke emissions. The addition of modest volumes of hydrogen gas can enhance the performance of diesel engines. The purpose of this investigation is to investigate the performance and emissions of diesel dual-fuel engines. In this investigation, a one-cylinder diesel engine with direct injection was operated at a constant 2000rpm with a 50 percent load. Flow variations of 2.5, 5, 7.5, and 10 liters per minute of hydrogen. Compared to biodiesel fuel, the results of this study indicate that a 10LPM hydrogen flow can boost thermal efficiency by 29.85% and a 7.5LPM hydrogen flow can increase power by 0.78 %. Moreover, the use of hydrogen gas reduces exhaust pollutants. Reduced HC, CO, and CO2 emissions by 26ppm, 0.01%, and 2.60%, respectively, for a 10LPM hydrogen flow.
Pengaruh variasi laju aliran fluida terhadap kapasitas pengeringan pakaian (tipe pengering lemari) Syamsuri Syamsuri; Zain Lillahulhaq; Akhfaruhal Akhfaruhal
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2538

Abstract

Clothes dryers are now widely used to help with laundry. During the rainy season, drying clothes outside is impractical. Furthermore, clothing may become contaminated with pollution. The rotating drum dryer is the most widely used model for utilizing centrifugal force. However, there are some disadvantages, such as wrinkled clothes from sun drying. The purpose of this study was to determine heat transfer in a clothes dryer with a drying cabinet type. The clothes to be dried are hung on a rack and blown dry with hot air. Convection will reduce the amount of water in the clothes. The hot air inlet velocity was varied between 3m/s, 4m/s, and 5m/s for this study. Changes in clothing surface temperature, calorific value, and efficiency were measured. The findings indicated that the air entering the drying cabinet must be moving at a slow speed. As a result, the incoming air has more time to transfer heat and contains more energy.
Studi experimental penambahan minyak cengkeh pada bahan bakar pertalite terhadap kinerja dan emisi gas buang mesin tipe TV-1 Sahrul Alam; Marthen Paloboran; Syafiuddin Parenrengi
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2556

Abstract

This research is a laboratory experimental research using a TV-1 type testing machine. This study aims to determine the performance and exhaust emissions of a four-stroke motorcycle on pertalite fuel and fuel with a mixture of clove oil. The composition of the clove oil mixture used in the study. this is as much as 5%, 10%, 15%, 20% and 25% into pertalite fuel in units of milliliters (ml). Data collection uses observation techniques using observation tables to record the research results obtained. Data analysis techniques used descriptive analysis in the form of tables and graphs to present the research results. As for the research results from the analysis of engine performance, it was found that there was an increase in engine performance at low rpm with the addition of clove oil to pertalite fuel while for high rpm the greatest power was obtained on pure pertalite fuel. But for fuel consumption, the lowest consumption was found in the composition of 5% clove oil mixture. Whereas for exhaust emissions, the addition of clove oil to pertalite fuel for CO gas emissions can reduce emissions, namely the 10% clove oil mixture. For HC gas emissions, namely in a mixture of 5% and 10% clove oil. As for CO2 emissions, it can be seen that the higher the composition of the clove oil mixture, the emissions also decrease and the highest CO2 emissions are in the 5% clove oil mixture.

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