cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
turbo@ojs.ummetro.ac.id
Editorial Address
Jl. Ki Hajar Dewantara No. 116 Kota Metro
Location
Kota metro,
Lampung
INDONESIA
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 509 Documents
 25   26   27   28   29 
Kajian sifat listrik bayam merah dan daun kelor sebagai fotosensitizer pada DSSC solar cell Nurlaila Rajabiah; Tri Cahyo Wahyudi
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.2119

Abstract

DSSC (Dye Sensitized Solar Cell) uses dye as a sensitizer material which is used as an electron donor to TiO2 nanoparticles and uses an electrolyte as an electron transport medium. One of the dye extracts of purple spinach and moringa leaves used as a photosensitizer is chlorophyll extract or anthocyanin. The nature of chlorophyll which is able to absorb light is a function of the dye in DSSC. Making Moringa leaf and red spinach leaf dye after being blended, dried and ground into powder. Then the Moringa leaf powder was mixed with 70% ethanol with the ratio of Moringa leaves and ethanol, namely 1:2, 1:3, and 1:4. Meanwhile, red spinach leaf powder was mixed with ethanol solution in a ratio of 1:3. DSSC fabrication shows that the voltage, current, and power produced increases with the increasing amount of ethanol used, namely 1.879 mW, 1.573 mW, and 1.98 mW. Meanwhile, red spinach leaves mixed with ethanol in a ratio of 1:3 showed that the results were higher than Moringa leaves. So from the results of DSSC Solar Cell fabrication using Moringa leaves and red spinach leaves, it shows that there is light absorption from these materials and an increase in the conductive properties of Moringa and red spinach DSSCs.
Pengaruh perubahan geometri nosel pada aliran dua fase terhadap kinerja liquid-gas ejector Rusadi Rusadi; Hadimi Hadimi; Edi Karyadi
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.1769

Abstract

Liquid-gas ejector is an energy conversion device capable of flowing air fluid by utilizing water fluid based on the pressure difference between the two fluids without using moving parts. This study aims to determine the effect of changes in nozzle geometry on two-phase flow on the performance of the liquid-gas ejector. The method used is by conducting an experiment whose stages include: determining the nozzle geometry parameter, primary flow rate, and secondary flow rate. Then carry out tests on the installation of liquid-gas ejectors and collect data. The test is done by alternating the nozzle geometry, primary flow rate, and secondary flow rate. Next, analyze the data that has been collected to get the efficiency or performance of the liquid-gas ejector from changes in the nozzle geometry. The results showed that increasing the nozzle geometry tends to cause a decrease in the efficiency and coefficient of the nozzle. The maximum efficiency produced by each nozzle with a geometry of 0.57; 0.64; 0.71; 0.79 and 0.86 respectively were 24.33%, 23.43%, 8.19%, 16.21%, and 7.96%. While the nozzle coefficients are 0.94, respectively; 0.81; 0.59; 071; and 0.59.
Bamboo slicing machine design to increase skewer production Erwin Yuli Susanto; Mulyadi Mulyadi; Arasy Fahruddin; Iswanto Iswanto
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.1944

Abstract

Sate is one of the Indonesian specialties whose demand is increasing, so the need for skewers is also getting higher. For this reason, innovation is needed to be able to meet these needs. Because when using skewers in a traditional/manual production method, the quality of the skewers produced is not good and the production capacity is also low. Meanwhile, the existing skewer making machine still has some drawbacks. So in this study, a bamboo cutting machine was designed to increase the production of skewers with innovations to cover the shortcomings of existing machines. In this study, the skewer making machine was designed to have a slicing section, a shavings section (making skewers), and a sharpening section. The skewers produced have a diameter between 2.5 mm to 3 mm and a length of 210 mm with a production capacity of 3000 skewers per hour.
Analisa pengaruh jarak cutting torch terhadap permukaan berputar pada mesin pemotong kontur sambungan pipa Amnur Akhyan; Hadi Salam
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.1882

Abstract

Currently steel pipes are needed, especially in construction work. Construction with pipe materials cannot be separated from the process of joining and cutting. The cutting process for large pipes always uses a thermal cutting process. This study aims to determine how much influence the cutting distance has on the cutting results on a pipe that rotates at a constant 0.8 rpm following the shape of the corner joint contour. To achieve the objectives of this study, a pipe cutting tool with a diameter of 4 to 6 inches is needed with the thermal cutting method using the Oxy Acetylene Cutting (OAC) process This research data was obtained by cutting the 4inch pipe schedule 10s, schedule 20s and schedule 40s in a rotating condition and the cutting torch moves back and forth. The pipe rotates at 0.8 rpm using an AC motor transmitted using a gearbox connected to the wheel as a holder where the pipe rotates. The results of the cutting are in the form of a pipe connection contour with an angle of 900 and 600. As the independent variable in this study was set the cutting distance is 5mm, 7mm and 10 mm, while the fixed variables are determined by cutting speed 280 mm/minute, acetylene gas pressure 3.5 kg/cm2 and oxygen 17.5 kg/cm2. In order to get effective results, preheat the surface of the pipe with a gas fuel mixture until it reaches the melting temperature of the pipe as the main ingredient. The cutting results that meet the entire path of the pipe can be cut completely and through and there is very little splash or melt dirt during the cutting process. After cutting, the best results are obtained at a cutting distance of 5 mm both on schedule 10s, schedule 20s and schedule 40s.
Optimasi kinerja reaktor pirolysis biomassa dengan penambahan pipa udara Kemas Ridhuan; Fajar Khusaini; Ridwan Ridwan
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.2121

Abstract

The pyrolysis reactor is a tool that functions to decompose organic compounds from biomass materials which is carried out by a heating process without or little air with temperatures ranging from 300-600°C. The results obtained from the pyrolysis reactor process are charcoal and liquid smoke. The existing air will accelerate the process of biomass oxidation, but if there is excess air it will cause combustion of the biomass so that most of it will be oxidized and decomposed into smoke and this will cause less charcoal yield. However, without air, the pyrolysis process will take longer. Therefore, an ideal air requirement is needed so that the effectiveness of this biomass pyrolysis process can be maintained because it will produce optimal charcoal and liquid smoke. The purpose of this research is to find out how many air pipes for the pyrolysis reactor are needed in this combustion process and how long the time and temperature of the pyrolysis process combustion and how much charcoal and liquid smoke are obtained. This research was conducted at the Mechanical Engineering Laboratory of the University of Muhammadiyah Metro, this study used a pyrolysis reactor with a diameter of 40 cm, height 50 cm, air pipe diameter inch with variations in the number of 1,3 and 5. Using 8 kg of corncob biomass. Straight pipe condenser with 12 mm diameter copper material 3 m long, outer pipe diameter 4 inch. The results showed that the highest pyrolysis temperature in air pipe 5 was 485°C with a pyrolysis process time of 120 minutes and the lowest temperature in pipe 1 was 353°C with a pyrolysis process time of 185 minutes. The results of the most liquid smoke in air pipe 5 are 0.5 liters or 6.25% and the least liquid smoke results are in air pipes 1 as much as 0.32 liters or 4.0% For the highest charcoal yields in air pipes 1 weighing 4 kg or 50% and for charcoal yields at least on air pipe 5 of 3.2 kg or 42.5%. The highest pH level in the air pipe 1 is 3.43 and the lowest level in the air pipe is 3.11.
Pengaruh variasi ukuran serbuk dan persentase perekat terigu terhadap sifat fisik pellet kayu gelam Andy Nugraha; Herry Irawansyah; Moh Noer Afifudin; Muhammad Muhammad; Rizqi Nor Al’Arisko
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.1825

Abstract

South Kalimantan is one of the natural habitats of gelam wood. In South Kalimantan, gelam wood can grow well and fertile. This makes the availability of gelam wood abundant and can be used for various purposes, one of which can be used as raw material for wood pellets (biomass energy). Wood pellets made from gelam wood have not been widely studied, so it is necessary to know the effect of the size of gelam wood powder and the addition of the percentage of adhesive on the physical properties of gelam wood pellets. Wood pellets made from gelam were made using various sizes of powder (mesh) 40, 50, and 60 as well as using flour adhesive (percentage of adhesive 5%, 10%, and 15%). Gelam wood pellets were then tested for physical properties in order to determine their performance. From the research that has been carried out, it is found that the volatile matter content, ash content, and water content tend to increase with the smaller size of the gelam sawdust. Meanwhile, the calorific value and fixed carbon content have a tendency to decrease with the smaller size of the gelam sawdust. volatile matter content, ash content, and water content tend to increase as the percentage of adhesive is increased. Meanwhile, the calorific value and fixed carbon content tend to decrease with the increase in the percentage of the amount of adhesive.
Analisis kekerasan dan keausan bearing pada pesawat Cessna Grand Carravan 208B Muhammad Abdul Rafiq Septiyanto; Indreswari Suroso; Noviana Utami
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.2045

Abstract

Bearing is a surface component that protects two parts that rub against each other. Bearings have several components including inner rings, roll bearings and supports. Bearings will experience weariness when used continuously, so the purpose of this study is to determine the level of hardness and wear of each bearing component of the Cessna Grand Caravan 208B aircraft. Hardness testing is carried out by vickers method and test sampling is carried out at three different points in each specimen. Wear testing uses the Ogoshimethod and test sampling is performed at three different points in each specimen. The results of this study concluded that vickers hardness testing received the highest hardness score on the roll with an average value of 739.7 VHN, the second highest hardness in the inner ring had an average hardness value of 695.1 VHN, and the lowest hardness in the buffer section had an average hardness value of 110.2 VHN. The wear test results get the highest value on the support section which is 0.00273 mm³ / kg.m, the second highest wear on the inner ring is 0.00133 mm³ / kg.m, and the lowest wear value on the roll is 0.00056 mm³ / kg.m.
Simulasi unjuk kerja kolektor surya hybrid PV/T berdasarkan jarak susunan pipa absorber berbentuk spiral Ahmad Yonanda; Amrizal Amrizal; Harmen Harmen; Hadi Prayitno
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.1906

Abstract

The performance of the solar collector can be reviewed based on several parameters, namely thermal and large fluid drop (pressure drop). This study aims to compare the thermal and pressure drop performance of plate-type solar collectors based on a spiral-shaped pipe arrangement using the distance between the pipes. The comparison of performance analyzed in each study for the distance between the pipes is 25 mm and 50 mm. The approach or stage of research on the performance of the data plate type solar collector is through CFD simulation testing. The simulation stages that will be carried out include: making the geometric design of the solar collector and selecting the mesh method used by the polyhedral type. The results of the solar collector test carried out by CFD simulation show that the use of a 50 mm absorber pipe arrangement has a higher thermal efficiency when compared to the 75 mm absorber pipe arrangement and also a 49.45% increase in pressure drop.
Kinerja bom kalorimeter sebagai alat ukur nilai kalor bahan bakar Mafruddin Mafruddin; Sulis Dri Handono; Mustofa Mustofa; Eko Mujianto; Ramadan Saputra
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.2048

Abstract

The calorific value contained in the fuel is one of the benchmarks for the quality of the fuel. To test the calorific value of fuel, a test device such as a bomb calorimeter is needed. The performance of the calorimeter bomb is influenced by the heat absorbed by the water media and the heat wasted into the environment and the heat from the combustion that occurs in the combustion chamber (reactor). Combustion in a bomb calorimeter is affected by the rate of air flow used. The wasted heat to the environment can be minimized by using an insulator on the outer wall of the calorimeter bomb. The purpose of this study was to determine the effect of air flow rate and type of insulator on combustion temperature, heat transfer and accuracy of bomb calorimeter test results. The method used in this research is experimental research by making and testing bomb calorimeters using variations in the air flow rate in the combustion process, namely 40 m/s, 50 m/s and 60 m/s and the types of insulators are air and Fiber glass wool. From the results of the research that has been done, it can be concluded that the air flow rate and the type of insulator affect the combustion temperature, heat transfer and accuracy of the bomb calorimeter. The maximum combustion temperature is 480 °C to 490 °C, heat transfer is 77.7 watts and the highest bomb calorimeter accuracy is 98% obtained at variations in air flow rate of 60 m/s and Fiber glass wool insulator.
Pembuatan dan pengujian spot welding menggunakan travo daur ulang Tri Cahyo Wahyudi; Asroni Asroni; Bahtiar Abdul Rahman
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.2087

Abstract

Spot welding is very much needed for the home industry, but the expensive welding price and large welding power make spot welding less efficient for small industries. Therefore, spot welding with small power and easy-to-carry design is needed. Spot welding design process is carried out in stages, namely planning, explaining component functions, and testing variations in the welding time used. The method used is experimental by making and testing. The specimen used is a type 304 stainless steel plate with a thickness of 0.8 mm. selected stainless steel type 304 with a thickness of 0.8 mm using a lap joint, with variations in welding time of 10, 15, and 20 seconds, using a current of 550 Ampere. The test carried out is a shear test with the AWS D8.9-97 test standard, with the aim of this study to determine the optimization of spot welding equipment using a recycled transformer on the test results. From the results of the research that has been carried out, it can be concluded that in variations of electric current and welding time, the highest average shear stress value is found at 550 A electric current by welding for 10 seconds the average shear stress is 1,060,164 (N/mm²) and the lowest average shear stress at an electric current of 550 A welding for 20 seconds the average shear stress is 564.578 (N/mm²).

Page 27 of 51 | Total Record : 509

 25   26   27   28   29 

Filter by Year

2012 2025


Reset
Filter By Issues
All Issue Vol 14, No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin (In Progress) Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin Vol 13, No 2 (2024): TURBO: Jurnal Program Studi Teknik Mesin Vol 13, No 1 (2024): TURBO : Jurnal Program Studi Teknik Mesin Vol 12, No 2 (2023): TURBO: Jurnal Program Studi Teknik Mesin Vol 12, No 1 (2023): Jurnal TURBO Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022 Vol 11, No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin Vol 10, No 1 (2021): Jurnal TURBO Juni 2021 Vol 10, No 2 (2021): Jurnal TURBO Vol 9, No 2 (2020): Jurnal Turbo Desember 2020 Vol 9, No 1 (2020): Jurnal TURBO Vol 8, No 2 (2019): Jurnal Turbo Desember 2019 Vol 8, No 1 (2019): Juni 2019 Vol 7, No 2 (2018): Desember 2018 Vol 7, No 1 (2018): Juni 2018 Vol 6, No 2 (2017): Desember 2017 Vol 6, No 1 (2017): Juni 2017 Vol 5, No 2 (2016): Desember 2016 Vol 5, No 1 (2016): Juni 2016 Vol 4, No 2 (2015): Desember 2015 Vol 4, No 1 (2015): Juni 2015 Vol 4, No 1 (2015): Juni 2015 Vol 3, No 2 (2014): Desember 2014 Vol 3, No 1 (2014): Juni 2014 Vol 2, No 2 (2013): Desember 2013 Vol 2, No 2 (2013): Desember 2013 Vol 2, No 1 (2013): Juni 2013 Vol 2, No 1 (2013): Juni 2013 Vol 1, No 2 (2012): Desember 2012 Vol 1, No 1 (2012): Juni 2012 More Issue