Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Turbo : Jurnal Program Studi Teknik Mesin

turbo
Website

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

16 17 18 19 20

Kajian Tekno-Ekonomi Produksi Reaktor Pirolisis dalam Menghasilkan Bioarang dan Asap Cair Kemas Ridhuan; Dwi Irawan; Yulita Zanaria
TURBO [Tulisan Riset Berbasis Online] Vol 8, No 2 (2019): Jurnal Turbo Desember 2019
Publisher : Universitas Muhammadiyah Metro

The techno-economy of pyrolysis products is very important because it is related to the profit and loss of production business. On the other hand, this product is very potential and good prospect, due to it can generate energy from wasted and problematic environmental waste. In addition, the equipment is very simple and very easy to make, maintain and operate, it does not require a large cost or capital. The research objective is to determine the economic value and BEP (Break Even Point) of pyrolysis combustion in producing liquid smoke and bio charcoal with biomass raw materials. Figure the characteristics of liquid smoke and bio-charcoal obtained such as heat value, pH, acid, specific gravity, viscosity, and color. The method used is initiated by testing the pyrolysis reactor, at this stage bio-charcoal products and liquid smoke are obtained, influenced by such as pyrolysis temperature, processing time and equipment. Followed by making bio charcoal briquette, this stage is mashed charcoal, making dough or packing, drying, then printing briquettes. And finally the process of re-liquidation of liquid smoke, by means of redestilation or continued heating so that it will produce liquid smoke grade 3, grade 2, and grade 1. The results obtained are known to have an economic cost of Rp. 244.720.000, and for equipment depreciation costs Rp. 144.839.000. For the cost of production per year, that is Rp. 100.925.000 and for the variable cost per kg, which is Rp. 4.888/kg. The initial capital required is Rp. 129.839.000. For the production cost of Rp. 7.476/kg. For the total price of sales is Rp. 100.939.306 and for BEP (Rp) which is Rp. 100.939.306 and BEP (kg) which is Rp. 13.495/kg. Keywords: BEP, economy, pyrolysis, bio charcoal, liquid smoke.

Rancang ulang alat pengering kakao tipe drawer dryer pada usaha mandiri kakao Desa Wiyono Kabupaten Pesawaran Risano, Yudi Eka; Tanti, Novri; Paska W, Andreas
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Cocoa is a commodity that has a high economic value. According to the 2013 FAO, Indonesia ranks third as the largest cocoa producing country in the world and accounts for 17% of world cocoa production with an area of 1,774,303.97 ha of plantations. In Lampung province, many cocoa farmers process their own garden products into dry cocoa using conventional processes and the results are judged to be less efficient so that the quality of the dried cocoa beans produced is not good. In the conventional drying process requires firewood up to 1 cubic, drying time is 10 hours, and cocoa must be stirred every 30 minutes. This study aims to redesign conventional cocoa dryers in one of Wiyono village's independent businesses to be better in terms of heat distribution, fuel consumption, and drying time. In this research, MATLAB computation and simulation software are used to simplify the design process. The design that was carried out only modified the existing dryer without changing the total dryer system by adding a heating pipe into the drying chamber to produce better quality cocoa. From the results of simulations that have been carried out on the longitudinal axis alignment pipe design, the results of heat distribution are more evenly distributed than that of the widest axis directional pipeline arrangement. With the design of the longitudinal axis arrangement of the pipe, an estimated drying time of 7.9 hours is obtained, fuel consumption is between 0.15-0.28 m3 firewood, and there is no need for stirring during the drying process.Keywords: Cocoa, redesign, dryer, MATLAB.

Pemanfaatan serat alam kulit terap sebagai bahan kombinasi pembuatan winglet sepeda motor Rianto, Ari; Anjiu, Leo Dedy; Suhendra, Suhendra
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

The development of new natural fiber material as a composite reinforcing material needs to be continued. The use of natural fibers developed in this study was obtained from applied bark. The applied skin fiber is chosen as a composite reinforcing material because it has strong characteristics when pulled. This study was conducted to determine the impact strength of a combination of the arrangement of the composite layer of applied fiber and glass fiber with a polyester resin matrix in the manufacture of motorcycle winglets. The making of composite specimens was carried out by hand lay-up and pressing techniques. composite specimens tested consisted of composite A (100% fiberglass), composite B (100% applied fiber), composite C (fiberglass, applied fiber, fiberglass), and composite D (applied fiber, fiberglass, applied fiber). The treatment of the applied fiber was carried out by soaking 5% NaOH for 2 hours. Impact test specimens and procedures refer to the ASTM D256-00 standard. The results of the study obtained that the material recommended in the manufacture of motorcycle winglets is composite C, which is a combination of fiberglass, applied fiber, fiberglass. The results of the C composite impact strength testing were obtained at 2.6581 J / mm2. The impact strength of composite C increased by 79% compared to the impact strength of composite B using pure applied fiber (100% applied fiber). The large void tendency in natural fiber composites using the hand lay-up method reduces the impact strength so that fiberglass is more dominant as a determinant of the impact strength increase.Keywords : Applied fiber, impact test, winglet.

Optimasi nilai keausan pahat dan kekasaran permukaan benda kerja terhadap parameter pemesinan milling dengan benda kerja magnesium menggunakan kombinasi metode taguchi dan grey relational analysis Dwiastanto, Lucius Patria Giri; Burhanuddin, Yanuar; Ibrahim, Gusri Akhyar
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

The Taguchi method is widely used to determine the optimal quality of a process with a single response. While for multi-response cases, Grey Relational Analysis (GRA) and Principal Component Analysis (PCA) are widely used. With multi-phone GRA, it can be simplified into one single response. Tool wear and surface roughness of the workpiece in the milling machining process is affected by the diameter of the tool, depth of feed, spindle speed, and feeding speed. This study examines the response of tool wear and work surface roughness with three levels and four factors. For tool diameters, using 6.8 mm and 10 mm. The depth of feed used 1; 1,5 mm and 2 mm. Spindle speeds at 910, 1280, and 1700 rpm. While the feeding speed is 75 mm/minute, 145 mm/minute, and 220 mm/minute. Optimal results obtained in conditions of 6 mm tool diameter with 1,5 mm depth of feeding, spindle speed of 1280 rpm, and feeding speed of 75 mm/minute. The optimal response obtained is 0,059 mm for tool wear and 0,364 μm for work surface roughness. The significant factor influencing is the feeding speed which influences 76,14 %.Keywords: Grey Relational Analysis, Principal Component Analysis, Taguchi Method, Milling, Tool Wear, Roughness

Analisa perpindahan panas pada dies squeeze casting Mafruddin, Mafruddin; Iskandar, M. Nur; Irawan, Dwi
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

The squeeze casting process is a metal casting process that requires a tool called extortion. Diess on casting is a component that determines checking performance. Based on this excuse, it is necessary to do a performance analysis (thermal) on squeeze casting to determine components performances. This study aims to determine the performance of the diess in squeeze casting which requires the allocation of heat that occurs and thermal efficiency diess. This research was conducted with a real experimental method with variations in testing at temperatures of 100ºC, 200ºC, 300ºC, and 400ºC using Magnesium AZ31 material and combined with aluminum. From the results of research published on the biggest thermal heater that is at a temperature of 400° C of 970.68 W with a thermal efficiency of 18%. While the heat that occurs at a temperature of 100ºC is 489.25 W and thermal efficiency is 9%, at a temperature of 200ºC is 806.28 W and thermal efficiency is 15% and at a temperature of 300ºC is 864.98 W and thermal efficiency is 16%.Keywords: Temperature, diess, squeeze casting performance.

Pengaruh perubahan sudut camshaft terhadap performa mesin sepeda motor sebagai upaya efisiensi energi Lukito Dwi Yuono; Eko Budiyanto
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

The role of the camshaft (noken as) is very important, including determining the time to open the valve, regulating the length of the valve opening duration, determining the overlap inlet and exhaust valve duration, as well as being a major component of the engine's working system. Modification of the camshaft angle is expected to be able to increase the efficiency of the combustion of fuel entering the combustion chamber and increase compression pressure in the combustion chamber so that it can improve volume quality of fuel entering the combustion chamber and can provide greater power to the engine rotation when in use. The purpose of this study was to determine the effect of camshaft angle changes on motorcycle engine performance and determine the effect of the camshaft duration on fuel consumption. The method that will be used in this research is to provide variations in angular changes on the camshaft of 20, 40, 60.Then test the dyno test on each variable. The result, the highest torque is the camshaft 40 variation with a value of 8.25 Nm. The highest power is in variation 40 with the highest number of 8.76 PS. Acceleration with the fastest time is obtained in camshaft 40 variations with a time of 14.2 seconds at a speed of 100 km/h. As well as the most efficient fuel consumption is at variation 20 with 150 ml fuel consumption.Keywords: Angle, camshaft, and engine performance.

Analisis pemotongan logam ST-37 dengan mesin potong menggunakan gas oxy-LPG Ade Irvan Tauvana; Widodo Widodo
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

This gas cutting machine is an ST-37 metal cutting tool in a semi-automatic way using Liquified Potroleum Gas (LPG) and Oxygen gas materials. LPG gas is used with a composition of propane 80% and Isobutane 20%. In the process of cutting metal based on several parameters, namely: metal thickness, oxygen gas pressure, and LPG gas and cutting speed. Before cutting down the metal, the preparation stage is done by conditioning the test equipment and work equipment used to collect test data. The method used in this research is to select the type of metal and cutting equipment then do the recording and taking test data. Further analysis and examination are carried out as follows: visual inspection of the results of cutting and flame shape, a better composition results from testing in accordance with applicable rules such as pressure, plate thickness, and time of cutting. 80% and 20% LPG gas composition at gas working pressure: 0.2 kg / cm2, oxygen pressure: 2.5 kg / cm2, cutting distance of 2 mm. The results of this test are overall in good condition and no defects occur.Keywords: LPG Gas cutting, Propane, Isobutane, Cutting speed, oxygen.

Efektifitas alat pengering tipe box gabah padi (Oryza Sativa L.) terhadap tingkat kadar air Raybian Nur; Muhammad Arsad Al Banjari
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v9i1.1069

Barito Kuala is a regency located in South Kalimantan Province. Most people in Barito Kuala Regency are rice farmers. When the rice is harvested, the harvest is traditionally dried by using radiation from the sun. However, the utilization of solar energy cannot always be used for example due to weather effects. Harvested rice has a moisture content of 21-26%. According to the SNI standard (Indonesian National Standard), the maximum moisture content in rice grain to be marketed is 14%. The purpose of this research is to make a tool and measure the level of effectiveness for drying small-scale rice grain. testing is done by taking a portion of rice grain then put into a box type rice grain dryer and compared with drying that utilizes solar energy. The results of the data obtained that every 5 minutes have a difference in the decrease in water content of 2.18% for 20 minutes with an initial water content of 15.3%.Keywords : Rice grain dryer, drying media type, moisture level.

Optimasi pembakaran menyeluruh pada reaktor pirolisis dalam menghasilkan bioarang dan asap cair Kemas Ridhuan; Mafruddin Mafruddin; Alfi Al Rasyid
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Pyrolysis is a process of combustion in a reactor with less or no air. The results of this process in the form of bio-charcoal products, liquid smoke, tar, and sin gas. To obtain optimal bio-charcoal products and liquid smoke, it is necessary to develop a pyrolysis process by means of thorough combustion. This combustion has the advantage that the combustion fire will heat up the entire reactor wall so that it will speed up the pyrolysis process and the combustion temperature will be high so it will generate more products, especially liquid smoke. This study aims to determine combustion achievement temperatures in the combustion chamber and reactor as well as the efficiency of the results of bio-charcoal and liquid smoke obtained. This research was conducted at the Laboratory of Mechanical Engineering Universitas Muhammadiyah Metro, this study uses a pyrolysis reactor with a total combustion chamber and uses fine sand insulation. The condenser uses a 0.5-inch diameter copper pipe with 11 turns. Biomass fuels use sengon wood. The raw material of sengon wood is 10 kg. Data from this study are compared with research data on pyrolysis reactors that have not been optimized so that the differences are known. The results obtained are the combustion temperature in the combustion chamber in the previous conditions, namely 563° C, and the optimization conditions 651° C, then the combustion temperature in the reactor in conditions before 370° C and the optimization conditions 329° C. Liquid smoke results obtained in conditions before 0.9 liters and 1.2-liter optimization conditions. Then the results of bio-charcoal obtained in conditions before 2.0 kg and 2.5 kg optimization conditions.Keywords: Pyrolysis, comprehensive burning, liquid smoke, bio-charcoal, optimization.

Analisa perbandingan kekuatan hasil pengelasan TIG dan pengelasan MIG pada Aluminium 5083 Iswanto Iswanto; Noerdianto Noerdianto; A’rasy Fachruddin; Mulyadi Mulyadi
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

This paper will discuss the comparative strength of TIG (Tungsten Inert Gas) welding results and MIG (Metal Inert Gas) welding results. Welding is carried out on aluminium material 5083, by varying the amount of amperage in each type of welding. Amperes variations used in TIG welding and MIG welding are 130 Amperes, 140 Amperes , and 150 Amperes. Furthermore, testing is carried out to determine the strength of the welding results, namely by bending and tensile test. From the bending test results obtained the highest bending strength of 262.36 kgf/mm2, obtained at MIG welding with a strong current used 130 Amperes. The lowest bending strength of 21.61 kgf/mm2, is obtained in TIG welding with the strong current used by 130 Amperes. From the tensile test results obtained the highest tensile strength of 23.48 kgf/mm2, obtained at MIG welding with a strong current used 130 Amperes. The lowest tensile strength of 17.41 kgf/mm2, obtained at TIG welding with a strong current used 130 Amperes.Keywords: TIG welding, MIG welding, Aluminium 5083.

Page 18 of 51 | Total Record : 509

16 17 18 19 20

Filter by Year

2012 2025

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

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

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

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

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

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