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Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin
Published by Universitas Pancasila
ISSN : 20885784     EISSN : 26209675     DOI : -
Jurnal Teknobiz dipublikasikan sebanyak 3 (tiga) kali dalam 1 (satu) tahun yaitu pada bulan Maret, Juli dan November. Lingkup Jurnal Teknobiz meliputi bidang energi baru terbarukan, dan manufaktur. Bidang energi baru terbarukan yang dibahas mengenai sistem dan alat teknologi konversi yang mampu mengkonversi sumber energi terbarukan seperti energi tenaga air, tenaga angin, tenaga surya, biomassa, dam lain-lain untuk dapat dimanfaatkan energinya ke bidang sektor yang lain. Bidang manufaktur yang dibahas meliputi bidang material, tribologi, dan lain-lain.
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Articles 376 Documents
Pengembangan Bioaditif Serai Wangi Pada Bahan Bakar Bensin Terhadap Performa Mesin Dan Emisi Gas Buang Sepeda Motor Budi Utomo Wisesa; Dahmir Dahlan
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 2 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i2.1486

Abstract

Bio-additives are elements derived from plants that are utilized as additives to improve fuel quality. Lemongrass fragrant oil is one of the types used as bio-additives that are volatile and soluble into fuels. The purpose of using this bio-additive is to improve the performance of the machine, but the resulting emissions must be in permissible regulations. This research was conducted by experimental methods, some of the tested samples consisted of gasoline (Pertalite), then the development was done by adding the element of lemongrass aromatic bio-additive on the fuel with a ratio of 1.5:1000 ml, 2.0:1000 ml, 2.5:1000 ml, 3.0:1000 ml, and 3.5:1000 ml. The sample test was carried out to measure engine performance, exhaust emissions, using Sportdevice Dyno and Emission Tester. Also, fuel consumption testing is carried out to determine the efficiency of fuel consumption. The results of this study the use of a fragrant lemongrass bio-additive can improve the performance of the motorcycle, maximum power increased by 3.11% at a ratio of 3.0:1000 ml and optimum torque are achieved at 2.03% at a ratio of 2.0:1000 ml. Then the result of exhaust emission measurement of HC and CO elements arising from the use of lemongrass bio-additives is still environmentally friendly In addition to the testing, fuel consumption measurement is also done by generating a savings of 20.93%, mileage 69.9 Km/L ratio using a ratio of 3.5:1000 ml.
ANALISIS PENGARUH INFILTRASI PADA AC SPLIT INVERTER TERHADAP KECEPATAN PENDINGINAN DAN PENGHEMATAN ENERGI Eko Dwi Wahono; Iskendar
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 2 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i2.1490

Abstract

In this study an analysis of the relationship between infiltration with cooling speed and analysis of the relationship between infiltration with energy savings in AC Inverters and Non-Inverter ACs. Data collected include time, door opening fully open, ¾, ½, and ¼, indoor temperature (TD), outdoor temperature (TL), current, voltage and power factor on AC Inverters and Non-Inverter ACs. From the temperatur data in space and time and door opening, infiltration and cooling speed are calculated. Data from current, voltage and power factor are then calculated energi. After infiltration, cooling speed and energy obtained from calculations, a simple linear regression analysis and Independent Sample T-Test analysis are performed. Regression analysis was performed to determine the relationship between infiltration and cooling speed. The relationship between infiltration and energi savings, this analysis is carried out in a room that uses AC Inverter and AC Non Inverter. After that the analysis of the Independent Sample T-Test between the energi consumption of AC Inverters and AC Non Inverters. In addition to analysis with software, calculations are also carried out so that energi consumption can be known to save AC Inverter after that, then conclusions can be drawn.
UJI EKSPERIMENTAL PENGARUH RASIO LEBAR DAN TINGGI SUDU SAVONIUS TAMBAHAN PADA ROTOR TURBIN ANGIN SUMBU VERTIKAL DARRIEUS TERHADAP KEMAMPUAN SELF STARTING DAN JUMLAH PUTARAN TURBIN Mochamad Bastomi
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 2 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i2.1518

Abstract

Belum tersedianya jaringan listrik di daerah pedalaman membuka peluang pemanfaatan energi angin sebagai sumber pembangkit listrik. Turbin Angin Sumbu Vertikal (TASV) Darrieus memiliki efisiensi tinggi sebagai pembangkit listrik tetapi tidak mampu self starting pada kecepatan angin rendah. Penelitian ini membahas tentang pengaruh rasio lebar dan tinggi sudu Savonius tambahan pada rotor TASV Darrieus troposkein terhadap kemampuan self starting dan jumlah putaran turbin. Metode yang digunakan adalah eksperimen dengan variasi desain sudu Savonius tambahan pada rasio lebar dan tinggi rotor 0.718, 0.738 dan 0.758, dan masing-masing memiliki luas penampang sapuan yang sama sebesar 0.04 m2 yang dipasang di bawah rotor TASV Darrieus simetrik troposkein yang memiliki luas penampang sapuan sebesar 0.04 m2 dan diuji pada kecepatan angin 2 m/s untuk memperoleh respon waktu self starting dan jumlah putaran turbin. Data pengujian dianalisa untuk diketahui pengaruh variasi rasio lebar dan tinggi rotor Savonius tambahan terhadap kemampuan self starting dan jumlah putaran turbin. Diperoleh hasil rasio antar lebar dan tinggi sudu rotor Savonius tambahan 0.738 mampu meningkatkan kemampuan self starting yang lebih baik dibanding 0.758 dan 0.718. Rasio antar lebar dan tinggi sudu rotor Savonius tambahan 0.758 mampu menghasilkan jumlah putaran turbin yang lebih baik dibanding 0.718 dan 0.738.
Desain Konseptual untuk Sistem Suspensi Regeneratif melalui Pemanfaatan Permanent Magnet Linear Generator Dino Agung Adha
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 2 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i2.1528

Abstract

Inovasi dan pengembangan berkelanjutan selalu dilakukan di bidang otomotif, terutama untuk kendaraan guna memaksimalkan efisiensi bahan bakar yang dikonsumsi. Inovasi ini juga digunakan untuk meningkatkan keselamatan dan kenyamanan saat mengemudi. Kondisi jalan yang tidak selalu rata menyebabkan kehilangan konsumsi bahan bakar yang terpisah karena pengemudi harus memperlambat kendaraan untuk menghindari getaran yang berlebihan. Inovasi penting yang dikembangkan adalah sistem suspensi regeneratif, yang berfungsi untuk menyerap energi getaran yang dihasilkan oleh sistem suspensi. Suspensi regeneratif mengubah energi getaran menjadi listrik melalui penempatan generator linier. Pengembangan teknologi Permanent Magnet Linear Generator (PMLG) masih sangat baru dan perlu dibuat dalam satu kerangka desain konseptual. Peneltiian ini menggunakan kerangka desain VDI 2221 dan metode eksperimen untuk memvalidasi hasil dari desain PMLG. VDI 2221 dipilih karena sistem PMLG telah memasuki tahap pengembangan. Fokus desain adalah pada pemilihan ukuran kawat stator, dan ditemukan bahwa penggunaan kabel yang berbeda memberikan kinerja dengan karakteristik masing-masing. Hasil pengujian pada desain dipilih dengan variable ukuran kawat stator AWG 28, 27 dan 25 menunjukan nilai konstanta generator tertinggi ada pada ukuran 27. Nilai konstanta generator menjadi indikator penting untuk mengetahui performa dari PMLG dan nilai ini dapat dijadikan sebagai rujukan awal untuk penerapan sistem PMLG pada suspensi regenerative.
PENGARUH PUTARAN TERHADAP KETAHANAN AUS PADA ROUND ROLLER DAN SLIDING ROLLER CONTINUOUSLY VARIABLE TRANSMISSION ESP 150 CC Eleazar Mora Octavian; Sugeng Priyanto
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 3 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i3.1756

Abstract

Primary Shave Weight or often called roller is one component of the Continuously Variable Transmission system on the ESP 150 CC automatic motor which is often damaged, both wear and crack or break. Wear and tear is a phenomenon of loss of material from its surface to another or the movement of material on a surface or surface displacement with the passage of time over time this wear will cause damage to the roller rubbing against each other. To understand the life of roller components, it needs to be studied further. In the field of tribiology studies of the phenomenon of friction, wear on two objects that are in contact. This affects the life of a component, especially those that move in fast conditions with the level of loading, the process of wear due to contact becomes three parts, which include material, environment, operating conditions and geometry of the surface of the wear object. To quickly determine the condition of wear, a tribometer pin on disk test equipment is needed, this tool is used to test round roller components and Continuously Variable Transmission sliding roller ESP 150 CC, where the material is PTFE. The design of the surface contact mechanism in the radial direction so that the disk can rotate and this test equipment is given a speed of 1000, 2000, 3000 Rpm with of loading of 3 kg. Tests are carried out experimentally to determine the occurrence of wear, from the initial conditions to continuous conditions. The results show that the tribometer pin on disk test equipment is feasible to use to determine the damage parameters that occur. By looking at the weight of the roller that is reduced due to friction
Studi Pengaruh Derajat Kemiringan Tool Head Terhadap Hasil Pengelasan Friction Stir Welding (FSW) Muhamad Leon Habibi; Muhamad Zainal Fanani
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 3 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i3.1757

Abstract

Aluminum and its alloys are non-ferrous metals which are widely used in the shipping industry because aluminum is a lightweight metal, has a relatively high tensile strength and good corrosion resistance. Friction-stir Welding (FSW) is a welding that is widely used on thin aluminum plates. The heat input of the FSW welding is affected by the degree of tilt of the head tool to the material. This study aims to determine the optimal degree of slope in FSW welding. The parameters used in this study are 1500 rpm rotational speed, 1.33 mm / s welding speed with the same material thickness of 4mm and the type of connection used by lap joint refers to the AWS standard. In this study, the tool head tilt variation is 0o, 1o, 2o and 3o and the effect on the welding results. The results of the study show that welding with a slope angle of 0 ° and 1 shows visible defects or undercut defects caused by overheating when welding. The results of welding with a degree of slope 2 show the results of welding is good at the beginning of welding, but in the middle of welding visible defect undercut. Tilt angle welding shows the best results with no visible defects due to welding. The results showed that visually the results of welding with a slope angle 3 degree had the best results. This was due to the heat input on the welding with the head tool tilt not excessive so there was no visual defect.
Analisis Pemanfaatan Energi Panas Menjadi Energi Listrik Pada Proses Pengereman Rem Cakram Pada Kendaraan Roda Empat Calvin Hans Adam Calvin; Erlanda Augupta Pane
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 3 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i3.1758

Abstract

This research was conducted to determine the electrical energy generated from friction heat in the braking process of disc brakes on four-wheeled vehicles with a calculation analysis of heat flow rates at speeds of 10 km/h and 15 km/h at 519 rpm, 748 rpm, and 1.234 rpm. The testing time is 20 minutes to get a measure of the heat generated from braking friction. The heat produced is converted into electrical energy using a thermoelectric device. Based on the calculation of the heat flow rate caused by friction on braking, a heat flow rate of 141.61 Watt is obtained and the voltage result is 317.2 mV. These results indicate the longer the braking is done, the heat generated from the friction force, the rate of heat flow flowing from the disk to the thermoelectric device, and the voltage result will be greater.
RANCANG BANGUN ALAT UJI TORSI TIPE PRONY BRAKE UNTUK UNJUK KERJA MESIN MOTOR BAKAR KAPASITAS 6,6 KW Muh. Irbabunnuha A; Yudhi M Sholihin; M. Dwi Trisno
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 3 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i3.1759

Abstract

As the need for engines in human life increases, so it also increases the need for fuel used. Therefore, many research about the use of alternative fuels instead of oil fuel. On the motor combustion performance, to know the motor power must be known first its torque. In principle, the dynamometer works by giving the load to the motor rotation which occurs through the braking mechanism on its axis. The price of torque test equipment on the market is high enough so that be a problem for research institutes or small scale workshops who want to test the performance of motor combustion engines. The purpose of this research is to design, build, and test the performance and validate statistically dynamometer that has been designed to have function, accuracy and good validation, simple design, easy operation, and affordable prices. In this research, the dynamometer that designed is a Prony Brake type dynamometer that designed with the VDI 2221 design method. Torsi test equipment or dynamometer that designed with a simple design, easy operation, and an affordable prices. After this dynamometer has been designed and assembled, furthermore this equipment is tested functionally using a General GX270 T2 Honda engine powered by 3kg LPG gas. After conduct the function test, the observational data is validated with statistical standards. From the result of this research obtained valid numbers so that torsi test or dynamometer in this research can be applied in research institutions / small workshop
Studi Simulasi Pengaruh dari Pitch dan Kecepatan Alir Fluida Kerja Terhadap Koefisien Perpindahan Panas Menyeluruh di Conical Cavity Absorber Jusva Agus Muslim; Laode M Firman
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 3 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i3.1760

Abstract

The energy crisis has become a global issue that must be resolved immediately through the use of new and renewable energy sources. Indonesia is geographically benefited because it is on the equator so that it gets a supply of sun throughout the year. This advantage is an added value for the application of solar-based energy systems. Concentrated Solar Power (CSP) system is an energy system based on solar thermal energy to generate electricity. The parabolic dish model in CSP has been shown to have the highest efficiency of up to 32%. The fundamental challenge of improving performance on the parabolic dish model is the design of the cavity receiver used. Cavity receiver functions to absorb heat from the reflector and distribute it to the system through the working fluid (Heat Transfer Fluid). This article specifically discusses the simulation of conical cavity receivers with a focus on the effect of pitch and fluid flow velocity in the system through Computational Fluid Dynamic (CFD) ANSYS. Simulation results on nine different variables show the effect of pitch and flow velocity on the overall transfer coefficient on cavity. The results of this simulation can be used as a basic reference in an effort to improve the heat transfer performance of cavity, which in turn can affect the overall performance of a Concentrated Solar Power Parabolic Dish type system.
Optimasi Desain Pembangkit Listrik Kapasitas 200 kW Menggunakan Tenaga Matahari dengan Sistem Pumped Storage Iwan Pramono; As Natio Lasman
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 3 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i3.1761

Abstract

This research was conducted by analyzing and optimizing the design of solar power plants with pumped storage systems as a source of renewable energy for remote areas in Indonesia. This research is very important to be done to solve the problem of meeting the electricity needs, especially in remote areas. The scheme is implementing 5 options in the pumped storage system. The system design is calculated and analyzed then optimization is done using Ansys fluent software. After that, all options are analyzed and compared in terms of economics related to Life-Cycle Cost (LCC) and Break Event Point (BEP) to get the best scheme. It was found that option A is better than other options in terms of system implementation because it requires the smallest number of pumps. From an economic standpoint, the LCC for option A is 63% lower than option C and higher than option B, D and E which are 2%, 5% and 25%, respectively. The lowest LCC is obtained by option E but has its own challenges in its application because it requires 540 pumps. The fastest BEP is obtained by option A with 9.47 years followed by an option D with 9.6 years. The longest BEP with 12.74 years was obtained by an Option C. Therefore, the use of pumped storage systems in solar power plants as an alternative renewable energy provides opportunities that are technically very possible and have the potential for continuous power supply in remote areas.

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