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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 getaran dan kebisingan pada kamar mesin dan geladak penumpang kapal cepat Aluminium Amalia Ika Wulandari; Suardi Suardi; Muhammad Yusuf Ismail
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.v10i2.1754

Abstract

Ship vibration is part of the problem with ship dynamics. In addition to producing noise that disturbs the comfort of crew and passengers, engine structures and components can be damaged due to vibrations that are too high, resulting in material fatigue and material deformation. In order to avoid the damage that occurs and in order to improve the comfort of passengers and crew, shipbuilding must comply with vibration and noise standards. This study aims to analyze the value of vibration and the value of noise that arises on the aluminum fast boat as a result of excitation in terms of the main engine. Calculation of natural frequency and mode shapes is done using ship modeling with Finite Element Analysis Software. The excitation frequency of the main engine is 35.014 Hz. Based on the system's amplitude calculation, the values range from 3.273 x 10-7 to 2.703 x 10-6. Then the vibration standard values obtained are in the range of values from 0.253 to 2.093. Then, the noise radiation value obtained is in the range of 134,582 dB to 130,449 dB. All research results regarding vibration and noise standards in the engine room and passenger deck of aluminum ships obtained results that meet the standards, so it can be concluded that the ship's construction is safe from excessive vibration and noise.
Pengaruh temperatur elektrolit terhadap ketebalan dan kuat lekat baja karbon rendah pada proses elektroplating Asroni Asroni; Eko Budiyanto; Tri Cahyo Wahyudi; I Wayan Suarca
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.v10i2.1755

Abstract

The development of industry as well as science and technology requires humans to fulfill various kinds of needs in their lives. One of them is the need for metal-based goods. Many objects around us, both in the automotive industry and in the steel-based industry for household purposes, etc., are given a metallic finish to protect and beautify the metal. The metal coating technique that is often used in the metal industry is electroplating. Electroplating comes from two words, namely electro and plating or electricity and coating that uses a deposition system. The purpose of this study was to determine the effect of electrolyte temperature on the thickness and adhesive strength of low carbon steel in the electroplating process. The cathode used is low carbon steel with dimensions of 70 mm x 25 mm x 20 mm, while the anode used is Nickel (Ni) and the bath for plating is 60 cm long, 30 cm depth, and 30 cm wide. Two anodes on the right and left side of the anode with an anode-cathode distance of 10 cm, and using an electric voltage of 7.5 Volts, and using variations in electrolyte temperature of 450C, 500C, 550C, 600C, 650C and room temperature. From the results of the study found the optimal thickness value with 0.021 mm at a temperature of 600C. Meanwhile, the optimal value for coating adhesive strength from electroplating research is 60℃ with a very high adhesive strength value of 26.53 MPa.
Pengaruh komposisi perekat dan diameter briket biopellet terhadap karakteristik dan temperatur pembakaran pada kompor gasifikasi Tri Cahyo Wahyudi; Sulis Dri Handono; Lukito Dwi Yuono; Rohyani Rohyani
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.v10i2.1756

Abstract

Biopellet is a type of solid fuel based on biomass waste which has a smaller size than briquettes. The purpose of this study was to determine the effect of adhesive composition and the effect of the diameter of biopellet briquettes on the characteristics and temperature and combustion time of the gasification stove. The method used was a mixture of 40% sawdust biomass and 60% coconut shell charcoal by varying the adhesive as much as 20%, 25%, 30% on 4 mm and 7 mm diameter biopellet briquettes. Based on the test results, it is known that the adhesive composition affects the temperature and time produced during combustion. The highest temperature reached 713.20C with an adhesive percentage of 20% at a diameter of 7 mm biopellet briquettes with a flash time of 26 minutes. While the lowest temperature reached 653.00C with 30% adhesive percentage on 4 mm diameter biopllet briquettes and 30 minutes of flame time. For the characteristics of biopellet briquettes from laboratory tests, the highest moisture content value was 8.10% in 30% adhesive at 4 mm diameter for the highest ash content value 9.45% at 30% adhesive variation at 4 mm diameter and the highest calorific value reached 4571.64 cal/g of 20% adhesive vari at 7 mm diameter.
Karaktristik proses destilasi asap cair grade 3 Kemas Ridhuan; Tri Cahyo Wahyudi; Danang Sulistiyo; Bahtera Anggara
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.v10i2.1761

Abstract

Distillation of liquid smoke is a process of heating liquid smoke based on the difference in its boiling point and then cooled to get liquid smoke with better quality. This heating aims to separate unwanted components in liquid smoke such as tar and benzopyrene. The process is strongly influenced by several things such as temperature and distillator. From these two measurements, several characteristics such as heating rate, distillation flow rate of liquid smoke, production capacity, heating temperature, steam temperature and distillation time, as well as the characteristics of the resulting liquid smoke can be known.The purpose of this study is to determine the characteristics of the 3rd grade liquid smoke distillation process with electric heating and water cooling condenser which includes the production capacity of liquid smoke and to determine the quality and quantity of liquid smoke, heating rate, electricity consumption, flow rate and to determine the efficiency of 2nd grade liquid smoke production.This research was conducted at the Laboratorium Teknik Mesin Universitas Muhammadiyah Metro, this study used a distillation apparatus made of Aluminium plate 1 mm thick, 180 mm in diameter, 250 mm high. Condenser with 0.5 inch diameter copper pipe 3,5 m long, 3 inch diameter PVC pipe, 3m long. The raw material for 3rd grade liquid smoke is 3 liters.The results obtained that the distillation apparatus has a capacity of 3 liters, the distillation temperature affects the rate of heating that occurs, namely the distillation temperature of 110oC, the heating rate is 707,42 J/second, the electricity consumption is 4,48kWh, the time is 45 minutes, and for a temperature of 120 oC the heating rate is 754,60 J/second, electricity consumption is 4,467 kWh in 65 minutes. The highest yield of liquid smoke is at a temperature of 110 oC, which is 2840 ml with a flow rate of 8,35 ml/minute and an efficiency of 94,6%, pH level of 2,15. And for a temperature of 120 oC it produces 2560 ml of liquid smoke, with a flow rate of 8,67 ml/minute and an efficiency of 85,3%, with a pH level of 2,10.
Pembuatan model alat pembuang panas untuk air pendingin alat praktikum heat exchanger merk PA Hilton seri H101 di laboratorium teknik mesin Hadimi Hadimi; Rusadi Rusadi
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.v11i1.1768

Abstract

Heat Exhanger Service Unit H101/08490 P.A Hilton Ltd that use for heat transfer experiment has a weakness because the water flow from the unit after taking heat will directly enter the storage tank, still have a high temperature  ( >33oC ). The use of practicum equipment for a experiment with a long enough duration will cause the cooling water are used have a high temperature and be ineffective for the heat exchanger cooling process. The purpose of making a Cooling Tower Type Heat Dissipator Model for Heat Exhanger Service Unit H101/08490  P.A Hilton Ltd so that the cooling water used to carry out the practicum will be maintained at a temperature of 28oC-33oC. Maintaining the stability of the cooling water temperature is expected to produce data that does not vary too much and can be done in a fairly long data collection range. The results of the performance and effectiveness test of cooling tower cooling show that the temperature increase is only 4oC for 3 hours of testing and the cooling effectiveness increases and is relatively constant during the test time. This shows that the cooling system with a cooling tower can be used as a supporting medium for heat exchanger practicum in the Mechanical Engineering department.
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): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

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

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.
Pengaruh laju aliran biogas dan waktu penyalaan Terhadap kinerja motor bakar menggunakan sistem dual fuel pertamax-biogas Mafruddin Mafruddin; Dwi Irawan; Edwin Dian Pratama; Renno yoga Pratama
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.v10i2.1770

Abstract

Fuels such as oil, coal and gas are non-renewable energy sources. For this reason, renewable energy sources are needed to replace these non-renewable energy sources. The use of biogas as a renewable energy source for gasoline motor fuel can be done using a dual fuel system (pertamax-biogas). Combustion on a gasoline engine with a dual fuel system will affect the resulting performance. The combustion process in the combustion engine is influenced by several factors including the biogas flow rate and ignition time. The purpose of this study was to determine the effect of biogas flow rate and ignition timing on the performance of a motorcycle engine with a dual fuel system. The method used in this study is an experimental study by testing the performance of a motorcycle engine using a dual fuel system with variations in the flow rate of biogas fuel 1 lpm, 2 lpm and 3 lpm and variations in ignition time of 11°, 13° and 15°. before TDC. From the results of the study it can be concluded that the biogas flow rate and ignition timing affect the performance of the motor. The highest power was obtained by varying the biogas flow rate of 2 lpm and ignition time of 15° before TDC, while the best specific fuel consumption was obtained at variation of the biogas flow rate of 3 lpm and ignition time of 15° before TDC.
Analisa kinerja alat pengasap ikan salai berbahan bakar tandan kosong kelapa sawit Sunaryo Sunaryo; Legisnal Hakim; Yuhelson Yuhelson; Japri Japri
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.v11i1.1805

Abstract

The community in Patin Village smokes fish in the traditional way, namely first, the fish to be smoked first, the fish are cleaned, the second the fish is split on the back to clean from dirt, the three fish that have been split will be arranged in the provided place, then fish will be put in the smoking place. Fish smoking device using closed circulation and temperature monitoring system that has been made. The purpose of the study was to compare the time efficiency of the smoked smoked smoked fish in the traditional way and to know the comparison of the smoking process of smoked smoked fish using coconut fiber and tangkos fuel. The results of the tests that have been carried out can be seen the lowest temperature when taking data 1⁄2 hours once produces 50°C and the highest temperature reaches 110°C. The temperature in the smoking room can be seen and monitored by a digital-based temperature controller with the results of testing the water content in the fish not too far away, the highest water content is 50% using Tangkos fuel, the room temperature at the time of testing is the highest at the time of taking with the highest is 110 oC using tangkos fuel and the difference in the consumption of tangkos fuel and coconut fiber has a difference in smoking, one of which is when testing the highest tangkos fuel it spends as much as 25.71 kg, coconut fiber spends the highest 19.42 kg with fish that different.
Uji kinerja mesin pengupas buah pinang kering menggunakan mekanisme pengupas tipe impact rotary poros horizontal Iman Syahrizal; Daud Perdana
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.v11i1.1821

Abstract

Indonesia was one of the exporting countries of betel nut, lately the selling price of betel nut has increased. Betel nut that has a high selling price, was an old betel nut that has been dried. Various forms of betel nut that were sold in the market include whole betel nut, split betel nut and sliced betel nut. The purpose of this study was to find out the effect of the spin speed of the peeling mechanism on the timing and peeling result, and to find out the best interaction between the spin speed and the number of peeling rods that able to producing the best peeling efficiency. The method used in the study was a randomized design experiment consisting of two factors: spin speed (1000 rpm, 1200 rpm, 1400 rpm, 1600 rpm) and the number of peeling rods (12, 18 and 24) with 12 testing interactions. The main parameter observed was the percentage of peeled fruit with whole condition. The performance test result proved that the increase of the spin speed peeling mechanism has an effect on the efficiency of time, when the speed spin of the peeling mechanism increases, the time it takes to peel the dried betel nut was decreases. But this condition was not directly proportional to the increasing percentage of dried betel nut that was whole peeled. The best peeling interaction was at a speed of 1400 rpm, with 18 peeling rods. This interaction produced peeling efficiency, 88% of whole peeled fruit, 12% of split peeled fruit and 0% of the unpeeled fruit.
Pengaruh penambahan Silikon pada remelting piston motor bekas menggunakan tungku induksi terhadap kekuatan tarik dan kekerasan Eko Nugroho; Eko Budiyanto; Aji Dawam Firdaus
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.v10i2.1823

Abstract

Aluminum is one of the most widely used non-ferrous metals in industry and engineering because of its light weight and resistance to corrosion. The purpose of this study is to change the waste of used motor pistons using an induction furnace by recycling or remelting the material and adding a mixture of silicon with variations of 8%, 10% and 12% to improve its mechanical properties. In this research, I used the main furnace for the smelting. The results of this study in the tensile test showed that the strength and wear strength increased with the addition of silicon elements but became brittle and stiff this happened because the value of the elastic modulus decreased with the addition of silkon elements, namely at 12% at 1.06 N/mm² and at a variation of 8 % of 1.13 N/mm². In the hardness test, it was found that the addition of silicon to aluminum with variations of 8%, 10% and 12% increased the hardness of the material.

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