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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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Pengaruh prosentase etanol pada oli terhadap lidah api dan temperatur pada burner oli bekas Mochammad Rizky Kurniawan; Djoko Wahyudi; Alief Muhammad
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1690

Abstract

The large amount of used oil waste in Indonesia cannot be separated from the large number of industries that exist today. Apart from the large number of industries, used oil also comes from the remnants of the use of motor vehicles. types of Hazardous and Toxic Waste (B3) according to Government Regulation no. 8 of 1999. Used oil burners can be used as alternative fuels, of course this can solve the problems of Micro, Small and Medium Enterprises (MSMEs). The research method was carried out to determine the effect of a mixture of ethanol and oil on the length of the flame and temperature, then the researcher tried to determine the effect of the mixing time of ethanol and oil on the length of the flame and temperature. The research was carried out in the Mechanical Engineering laboratory of Panca Marga University in a closed state so that the flames did not change, taking pictures of the length of the flames by recording the fire propagation for 1 minute, then cutting each frame with the help of the imagej application. The results obtained from the study are the addition of the percentage of ethanol affects the length of the flame and the temperature produced by the burner.
Uji karakteristik nyala api pembakaran premix bioetanol dari ampas tebu Saeful Bakhri; Djoko Wahyudi; Alieff Muhammad
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1694

Abstract

The fuel demand is very important in this day. The higher fuel consumption was impact depletion of existing reserves of oil resources. Bioethanol is one of the energy conversions from biomass containing sugar, starch and cellulose become fuel. Bagasse is a solid waste containing a lignocellulotic substrate which has the potential for bioethanol production. The purpose of this experiment was to determine the flame characteristics of the composition of the addition bioethanol to Pertamax as a mixture, with a variety of mixtures (B0, B5, B10 and B15). The test was carried out using the premix combustion method. The data from the result experiment were analyzed using descriptive methods. The results of the experiment showed that the addition of bioethanol can affect the flame characteristics. The shape of the flame changes from a conical shape to an enlarged cone angle along with the addition of a percentage. The flame height has decreased, the highest flame is at B0 with value of 12.79 mm, the lowest flame height is at B15 with value 10.27 mm. Combustion velocity has increased, the highest velocity is at B15 with value of 32.753 cm/s and the lowest velocity is at B0 with value of 22.253 cm/s.
Respon struktur akibat perubahan jarak stiffener pada car deck Kapal Ferry Ro-Ro Alamsyah Alamsyah; Septiany Tri Pangestu; Amalia Ika Wulandari
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1705

Abstract

Ro-Ro type trans ships have a Car Deck which is useful for accommodating cargo in the form of vehicles. The construction of the deck must be strong enough so that it does not suffer structural damage when working with a certain load. In this case the stress strain becomes very important as an element of deck strength. As for what affects the strength of the deck construction, one of which is the stiffener distance. This purpose of research to determine the response of the car deck structure with variations in stiffener distance to the stress-strain value. The method used is the Finite Element Method. The results of detected the maximum stress value at a stiffener distance of 550 mm 325.471 N/mm2 with a maximum strain of 3.33 x 10-2 mm, for a stiffener distance of 650 mm the maximum stress was 407.521 N/mm2 and a maximum strain of 3.35 x 10-2 mm, a stiffener distance of 750 mm the maximum stress generated is 444.129 N/mm2 with a maximum strain of 3.36 x 10-3 mm, a stiffener distance of 850 mm, the maximum stress generated is 448.469 N/mm2 with a maximum strain of 3.43 x 10-3 mm. For a stiffener distance of 950 mm, the maximum stress is 452.567 N/mm2 with a maximum strain of 3.53 x 10-3 mm.
Pengaruh variasi campuran bahan bakar pertamax dan bioetanol 99,9% terhadap torsi mesin bensin 4 langkah Tecquipment TD201 A. Yudi Eka Risano; Herry Wardono; Gunawan Poniton R.P. Sihombing
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1708

Abstract

Bioethanol is ethanol made from plants such as cassava, sugarcane, sago, which are processed through hydrolysis, fermentation, distillation and dehydration processes. Lampung Province is one of the largest producers of cassava in Indonesia, with the total productivity of 5,451,312 tons in 2017, and 6,683,758 tons in 2018 or there was an increase of 22,61% compared to 2017. From this data, it is possible to produce bioethanol, where every 1 kg of cassava can produce 0,106 liters of bioethanol. This is what underlies this research to investigate the effect of blending bioethanol of 99% with pertamax and bioethanol on the engine torque. Blending bioethanol of 99% can homogeusly mix. The engine used in this study is a Kohler gasoline engine equipped with a VDAS (Versatile Data Accession System) instrument unit in determining the parameters of engine performance. The blending of bioethanol of 99% as big as 14% (E14) gave the highest value of torque at 1 rotation of dynamometer valve opening and engine speed of 2000 rpm.
Pengaruh modifikasi lift camshaft dengan bahan bakar pertalite dan pertamax terhadap kinerja mesin 110 cc Wahyu Nur Achmadin; Indah Noor Dwi Kusuma Dewi; Djoko Wahyudi
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1716

Abstract

Modification of the camshaft lift with pertalite and pertamax fuel has been carried out. This study aims to determine the effect on engine performance, namely a change in lift of 1 mm is able to maximize performance to be better than the standard. In this study using a 110cc motorcycle engine with pertalite and pertamax fuels to show a comparison of modifications to the standard. The results obtained are the modified 1mm lift camshaft with Pertamax fuel produces maximum power and torque compared to the standard camshaft, with values of 13.33 hp and 13.38 Nm, respectively. The highest increase in power and torque on pertalite fuel is found at 7000 rpm which can increase performance by 7.4% and 7.2%, respectively, from the standard camshaft. Meanwhile, the highest increase in power on Pertamax fuel was obtained at 5500 rpm rotation with a value of 12.1% while the highest torque increase in Pertamax fuel was obtained at 8000 rpm rotation with a value of 11.9%.
The influence of friction stir welding tool shape on quality of AZ31 Magnesium welding product Irza Sukmana; Fauzi Ibrahim; Ahmad Yudi Eka Risano
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1728

Abstract

Magnesium is one type of material that can be used as a base metal in welding. Magnesium has superior properties, including low density, good ductility, medium strength and excellent corrosion resistance. Because of its properties, the metal is widely used, ranging from household goods to aircraft components. These base metals are categorised as mild when viewed from the specific gravity of magnesium (1.74 g/cm3 and 1.83 g/cm3). Welding is the process of merging two or more base metals which are merged at the contact surface with or without additives or fillers. Welding is divided into two main categories, Liquid and Solid-State Welding. Friction Stir Welding (FSW) is an example of Solid-State Welding (Non-Fusion Welding). FSW is a friction welding process that twists the tool by utilising heat energy and pressing without additives or fillers until the base metal is in a phase change.  The welding process in this study used the cone and spiral shape with a tool rotation at 2000 rpm and a welding speed of 16 mm/min. The tests carried out are tensile and hardness testing. This study found that the tool shape, tool rotation, and welding speed significantly affect the mechanical properties of the welded AZ31 magnesium. The spiral shape will make the welding area wider. Although the cone shape will have a small area, the weld will look perfect with good tensile strength, while the hardness values for the two tool shapes are almost the same, but the cone shape is better.
Analisa parameter pada pemotongan plate menggunakan CNC fiber laser cutting terhadap kekasaran permukaan Muhammad Arief Hidayat; Akhmad Farid; Purbo Suwandono
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1737

Abstract

With the advancement of advanced equipment, Computer Numerical Control (CNC) laser cutting as a manufacturing tool in plate cutting, where industri player make to get maximum result. Laser cutting Cutting is one of the tools used by the industrial world to maximize cutting results. The purpose of this research To find out the results of the difference using the parameters of air pressure and cutting speed on a Q235B carbon steel plate with a thickness of 3 mm using CNC fiber laser cutting on the surface roughness of the material. The method used in this study is a real experimental research method and data analysis to analyze parameters on plate cutting using laser cutting on surface roughness with this number of experiments 9 and 3 replications for the research process by testing surface roughness using Surface Roughness Sj – 210 Mitutoyo. The results showed that the higher the air pressure and the lower the cutting speed, the lower the surface roughness value and vice versa. The lowest surface roughness value is at air pressure of 16 Bar with a cutting speed of 3300/min which is getting a value of 1.499 μm and the highest surface roughness value is at air pressure of 12 bar with a cutting speed of 3400 mm/min which is getting a value of 2.986 μm. dengan kecepatan pemotongan 3400 mm/min yaitu mendapatkan nilai sebesar 2,986 μm.
Pengaruh konduktivitas thermal pada hot cylinder mesin stirling menggunakan energi surya terkonsentrasi Akhmad Rizal Fanani; Muhammad Agus Sahbana; Purbo Suwandono
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1741

Abstract

Renewable energy is one of the businesses sector that will develop rapidly after the changing economic order due to the corona outbreak. The characteristics of Indonesia's tropical climate by getting good sunlight throughout the year can be used as alternative and renewable energy. The Stirling engine is one type of external combustion engine, because combustion is carried out outside the engine using a closed regenerative cycle in which the working fluid is compressed or expanded in a separate reservoir and then distributed to drive the power piston reciprocatingly. The method developed is the use of solar energy which is concentrated by a parabolic reflector to the hot cylinder of the Stirling engine to convert heat energy into motion energy. The purpose of this study was to determine the effect of the thermal conductivity of several material specimens used in the hot cylinder of the Stirling engine including copper, stainless steel, & glass. This study uses an experimental method to describe the performance of a stirling engine prototype using various types of hot cylinder material specimens. The results showed that the gamma stirling engine using hot cylinder glass material had the best performance because with a heat conductivity of 0.78 W/mËšC it was able to drive a stirling engine with a speed of 132 rpm and a torque of 0.57 N.mm at the temperature difference between hot cylinder and cold cylinder of 88ËšC and with a thermal efficiency of 20.39%.
Study experimental alat destilasi air laut terhadap kuantitas dan kualitas air tawar yang dihasilkan dengan menggunakan energi matahari Ahmad Yani
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1744

Abstract

One of the benefits of sunlight is to evaporate water (distillation). The working principle of this tool is that solar radiation penetrates the glass cover and hits the surface of the absorber, so that it turns into heat energy. The heat energy from the absorber is absorbed by the plate and seawater in the container in the distillation apparatus causes evaporation to occur. The water vapor produced will move up and stick to the bottom surface of the glass cover. The heat transferred to the environment causes water vapor that has reached the saturation temperature to condense. The dew that sticks to the inner surface of the glass cover will fall down by gravity following the slope of the glass cover on the outlet pipe. The purpose of this study was to determine the quantity and quality of fresh water produced by distillation equipment using solar energy. The research was conducted using an experimental method with an experimental design of a seawater distillation apparatus. The results showed that the quantity of distilled water produced from 07:00 to 16:00 for 8 days was 2578 ml. The quality of fresh water produced from the distillation apparatus includes turbidity, color, dissolved solids, temperature, taste, and odor that has met the requirements for use by the community in daily life based on the regulation of the Minister of Health of the Republic of Indonesia number 32 of 2017 concerning health quality standards. environmental and water health requirements for sanitary hygiene purposes.
Rancang bangun dan pengujian sistem penjatah pada prototipe mesin pemipih emping beras Suhendra Suhendra; Feby Nopriandy
TURBO [Tulisan Riset Berbasis Online] Vol 11 No 1 (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.v11i1.1747

Abstract

Rice quaker is a traditional culinary still made manually. Efforts to improve the rice quaker production process have been carried out by build a prototype of rice quaker flattening machine. The machine has a weakness because it is not equipped with a rationing system that can adjust the flattening capacity. Based on these problems, further research was carried out with designing and testing the rationing system on the rice quaker flattening machine. The stages of the research are to design the shape, create a rationing system, conduct testing and analyze the results. The independent variables of the study were the number of spaces and the rotational speed of the rationer. The independent variables of the study were the capacity and level of material damage. The rationing system has dimensions of 30 cm x 20 cm x 95.5 cm, weight 12 kg, use pulley and belt transmission system, with a 24V 120 Watt DC motor drive system. The test results at the rotation speed 50-300 rpm did not find any damage to the test material. The damage was found when the rotational speed reached 350 rpm. The rationing system prioritizes the stability of the output material over the capacity. Based on the test results, the recommended rotational speed of the rationing system is 200-300 rpm with the recommended number of rationing chambers of 10. At this recommendation value, the capacity obtained is 83,61 – 92,83 kg/hour.

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