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Pribadi Mumpuni Adhi
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INDONESIA
Jurnal Mekanik Terapan
Published by Politeknik Negeri Jakarta
ISSN : -     EISSN : 27471381     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Mekanik Terapan (JMT) adalah jurnal ilmiah yang terbit secara berkala dua kali setahun pada bulan Mei dan Oktober. Jurnal ini dapat digunakan sebagai sumber informasi ilmiah untuk peneliti, akademisi atau lembaga penelitian, insinyur industri, dan lembaga pemerintah. JMT memuat informasi bidang riset Mekanik Terapan berupa hasil riset dan Ulasan Ilmiah pada bidang: -Teknik Mesin dan Manufaktur -Energi (Konversi Energi, Renewable Energy, Applied Chemistry in Energy) -Mekatronika dan Robotika -Otomotif (Alat Berat dan Kendaraan Ringan) -Material dan Metalurgi -Teknik Pembangkit Tenaga Listrik
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 123 Documents
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Uji Produk dan Karakteristik Nyala Api Bioetanol Limbah Batang Tembakau Muhammad Ikhwan; Ikhwanul Qiram; Anas Mukhtar; Gatut Rubiono
Jurnal Mekanik Terapan Vol 3 No 1 (2022): April 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v3i1.4362

Abstract

Limbah batang tembakau mengandung selulosa yang berpotensi menjadi bahan bakar alternatif berupa bioetanol. bertujuan untuk mendapatkan karakteristik nyala api bioetanol limbah batang tembakau. Penelitian dilakukan dengan metode eksperimen. Batang tembakau yang digunakan adalah jenis Na Oogst dan Voor Oogst yang didapat dari daerah kabupaten Jember. Batang tembakau dikeringkan dan diolah menjadi serbuk berukuran random 8 mm – 10 mm, ≤ 0,26-1,19 mm dan 0,25 mm. Serbuk selanjutnya diproses delignifikasi, fermentasi dan distilasi. Produk bioetanol diukur massa jenis dan titik didihnya. Pengujian nyala api dilakukan dengan membakar 1 ml bioetanol dengan pemantikan api. Nyala api diamati dengan kamera dan dilakukan pengukuran durasi nyala menggunakan stopwatch. Hasil pengamatan diolah menggunakan aplikasi ImageJ untuk mendapatkan luas nyala api, dan prosentase warna api merah, kuning dan biru. Hasil penelitian menunjukkan adanya perbedaan produk dan karakteristik nyala api bioetanol berdasarkan 2 jenis tembakau yang digunakan
Metode Rancang Optimasi PLTPH Turbin Vortex di Danau Universitas Indonesia Untuk Pemanfaatan Turbin di Pedesaan Muhammad Raihan Abimanyu; Gun Gun Ramdlan Gunadi; Andi Ulfiana
Jurnal Mekanik Terapan Vol 3 No 1 (2022): April 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v3i1.4544

Abstract

Picco-hydro Power Plant (PLTPH) is a power plant that utilizes water energy to produce small-scale electricity. The power produced starts from tens of watts to 5 Kw. In this study, an economical PLTPH system was designed with the selection of the type of generator according to the mechanical power of the turbine. Turbine mechanical power measured an average of 150-280 Watt with the highest rotation of 135 RPM. Then choose a 300 Watt DC generator with a working ratio of 100-900 RPM. With the selection of cheap after market pulleys and analysis of the size of the transmission ratio, obtained a rotation ratio that can increase the turbine speed up to 810 RPM speed. Then a control panel and simple instruments were made as an electrical stabilizer, protection and measurement of the work of the generating unit. The power generated can turn on 16 DC lamps that have been installed on the lake road, with an optimal power reading of ±31 Watt. If turned on without loading the generator is capable of producing a voltage of up to 44 Volt DC.
Perancangan Mesin Roll Plat Listrik sebagai Peningkatan Efisiensi Kerja di Industri Manufaktur Fathan Mubina; Amir Amir
Jurnal Mekanik Terapan Vol 3 No 1 (2022): April 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v3i1.4545

Abstract

Several engineering companies in Indonesia still use conventional type machines which, when viewed from the point of view of maintenance, repair, and performance, are still far behind. More than that, we use automatic machines. The first step in this research is to find some related literature that supports it. Then observe the machine that roughly corresponds to the shape of the design later. Then make the design of the electric plate roll machine design. After the design is understood, then plan the equations needed in the analysis of this research. If it is known the equation that will be made when the data is obtained, it can be calculated immediately. The calculation is not adequate, there may be improper equation planning. The final step is when the calculation is done, the conclusion can be determined immediately. Based on the stages of the design process for the automatic system aluminum plate roller machine, several conclusions can be drawn for this final project, including for the roller machine itself using an asymmetric plate roller type with two high mill roll arrangements because this type of machine is the most popular plate roll machine simple
Perancangan Drilling Jig dengan Adjustable V-Block untuk Pengeboran Tangkai Drill Chuck Mesin Bor Koordinat 22 STA Ilham Akmal; Hamdi Hamdi; Darius Yuhas
Jurnal Mekanik Terapan Vol 3 No 1 (2022): April 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v3i1.4546

Abstract

The drill machining process requires the drill chuck shank as a coupler between the drill chuck and the drilling machine spindle. Limited availability of drill chuck shank especially for coordinate drilling machine 22 STA is the problem faced. The purpose of the design is to get a replacement of drill chuck shank because on the market that thing is difficult to obtain. The design methods include: the design of special device for placing the drill chuck shank in parallel position to the horizontal axis that is drilling jig with adjustable v-block to adjust the taper of the shank,machining a drilling jig with adjustable v-block, and trial drilling of eight holes on body of drill chuck shank. The real result obtained is drilling jig with adjustable v-block which can be used to make eight holes on body of drill chuck shank coordinate drilling machine 22 STA.
Rancang Bangun Sistem Mekanik 3D Printer Mortar 1x1x1 m Muhammad Tomy Adam; Sonki Prasetya; Djoko Nursanto; Ahmad Suhandi
Jurnal Mekanik Terapan Vol 3 No 1 (2022): April 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v3i1.4547

Abstract

3Dmortar printer is a combination of digital automation technology with cement mortar material technology. The problem that appears in 3Dmortar printer technology requires high financial investment, because this is in the process of development especially in Indonesian, this is to build a 3Dmortar printer machine with a focus on mechanical systems that can function optimally. Design of a 3Dprinter machine with a scale of 1x1x1m was successfully made with the Certasian type which has XYZ axes and has a machine weight of 84kg, can be travel speeds above 25mm/s, the frame used is steel with 40mm and 65mm right angle profiles. The supporting such as an extruder feeder as the regulator of mortar output is a 25mm of diameter nozzle with a 40mm of diameter screw thrust system. Mortar pump as a mortar supplier to an extruder with a hopper capacity of 30kg mortar mix with a 40mm of diameter screw drives the system at 68rpm, output can be obtained at the speed 1070gr/minute
2D Mapping Lingkungan Indoor Menggunakan Lidar dan ROS untuk Mobile Robot Hasvienda Mohammad Ridlwan; Sonki Prasetya; Muslimin Muslimin
Jurnal Mekanik Terapan Vol 3 No 2 (2022): Agustus 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v3i2.4285

Abstract

Currently, the application of control systems has been applied in various scientific fields including mechatronics and robotics. Applications in the branch of robotics are also growing day by day not only with conventional controls but also with intelligent systems. An autonomous robot in carrying out certain missions in an unknown environment requires information about the location itself and the environment through the map. A process to identify a position without a map is called a localization function on the robot. Mobile robots building maps and localization are two fundamental tasks when mobile robots work in indoor environments. With 2D laser scanning (LiDAR) data obtained in real-time, the robot can calculate the area of ​​all empty spaces in a room, then can choose the center of the room as its position for map building. The objective of this research is to implement a two-dimensional mapping method using LiDAR. The algorithm used in this study is the Gmapping Technique on ROS. The main purpose of this research is to map mobile robots with LIDAR sensors using the Robot Operating System for navigation and positioning of mobile robots. Through the actual experimental results, the mobile robot will move with a 2-dimensional mapping process.
Pengaruh Korosi Terhadap Kegagalan Logam pada Jembatan : Literature Review Anita Putri Kurniasari; Yasmina Amalia
Jurnal Mekanik Terapan Vol 3 No 2 (2022): Agustus 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v3i2.4597

Abstract

Steel bridges are used as construction materials because of their lightweight properties, durabil-ity, and ease for assembled. But failure on steel bridges increases exponentially. Structural fa-tigue, material aging combined with an increase in traffic loads, is a cause in damage to the bridge, where in this case corrosion is the main discussion of decreased quality and failure on the bridge. In the results of the literature review of several papers, the results were obtained that from visual observations in bridge steel in the sea water environment, rivers, and in the envi-ronment around the toilet waste. Damage to the bridge structure caused by corrosion from chlo-ride ions in sea water is higher than corrosion in the river environment and waste fluids on the train. The corrosion rate that occurs in the marine environment is higher than the river environ-ment and toilet waste fluids. In the corrosive environment, chloride ions or sulfate will diffuse into steel through concrete bridge structure.
Root Cause Failure Analysis pada Shutoff Hot Damper Mill Di Pt. Indonesia Power Unit Jasa Pembangkitan Jawa Tengah 2 Adipala Fitri Wijayanti; Nadiyatul Fadhila
Jurnal Mekanik Terapan Vol 3 No 2 (2022): Agustus 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v3i2.4616

Abstract

PT Indonesia Power Unit Power Generation Services Central Java 2 Adipala is one of the suppliers of electrical energy on the islands of Java, Madura and Bali. The main components of PLTU Central Java 2 Adipala are Boilers, Steam Turbines and Generators. The combustion system in the heating process in the boiler requires air, fuel, and heat. Coal as fuel is supplied from coal handling and distributed to the bunker and then through the coal feeder to the Pulvarizer/Mill before going to the combustion chamber. At the time of milling there is a drying, distribution and separation process of coal with foreign objects carried from the mining process so that the coal entering the combustion chamber meets specifications. The milling process is carried out with the help of a Primary Air Fan (PAF) to suck air into the Mill/Pulvarizer. Before entering the Mill/Pulvarizer, the cold primary air and hot primary air are held by the Shut Off Damper, which functions to open and close the PAF airflow to the Mill/Pulvarizer. In the process, there is a possibility of damage/failure from the Shut Off Damper so that the continuity of the process at the Mill/Pulvarizer is disrupted. For this reason, it is necessary to analyze the damage/failure to the Shut Off Damper and solutions
Rancang Ulang Prototipe Pembangkit Listrik Tenaga Piko Hidro Portabel Tipe Cross Flow Bella Maharani Marcellia Suseno
Jurnal Mekanik Terapan Vol 3 No 2 (2022): Agustus 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v3i2.4619

Abstract

Electricity is one of the most important needs in everyday life. The need for lighting for study or research purposes in a field that has not been reached by a power source makes a portable Pico Hydro Power Plant (PLTPH) a solution to obtaining electricity supply by utilizing a water source with a fairly small discharge and head. The steps that have been taken in the design of the portable PLTPH include a study of the PLTPH that was once designed by Dzulfikri (2021), reverse engineering of the portable PLTPH such as inlet and outlet, the shape of the turbine housing, supports, turbine runners, testing installations, and nozzle cross-sectional area. Next, prepare the test installation. The testing process was carried out and continued with the discussion of the test results. The dimensions of the tool are 266.63 mm long, 190 mm wide, and 226.88 mm high, which were made using a 3D Printing machine using PLA plastic material. The results of the reverse engineering test results have a rotational speed of 794 rpm, a discharge of 3,867 l/s, and a head of 2 m, resulting in a mechanical power of 20.13 W and an efficiency of 26.0%. These results produce greater mechanical power and efficiency than the existing equipment (mechanical power of 11.7 W and efficiency of 23%). Keywords: Pico Hydro, Portable, Reverse Engineering, Cross Flow
Performa Performa Kendaraan Konversi Listrik melalui Pengujian Dynotest Fuad Zainuri; Muhammad Hidayat Tullah; Isnanda Nuriskasari; Rahmat Subarkah; Widiyatmoko Widiyatmoko; Sonki Prasetya; Iwan Susanto; Belyamin Belyamin; Abdul Azis Abdillah
Jurnal Mekanik Terapan Vol 3 No 2 (2022): Agustus 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v3i2.4621

Abstract

Pada penelitian ini dipaparkan tentang konversi yang dilakukan dengan mengubah kendaraan konvensional berbahan bakar bensin dengan listrik. Penggantian dilakukan dengan melepas Engine penggerak dan menggantikannya dengan motor penggerak yang secara otomatis ditambahkan dengan Baterai sebagai sumber energi. Selanjutnya dari hasil konversi tersebut dilakukan pengujian torsi dan rpm melalui Dynotest yaitu suatu metode pengujian performa mesin kendaraan (motor listrik) dengan cara melihat tenaga (power) dan torsi (torque). Torsi adalah kemampuan mesin untuk menggerakkan atau memindahkan kendaraan listrik dari kondisi diam hingga berjalan dan ketika berjalanpun ada variasi antara kecepatan dengan perubahan gigi yang dilakukan . Selain itu juga dengan Dynotest akan diketahui titik tertinggi nilai Torsi pada setiap gigi. Pada pengujian yang dilakukan didapatkan nilai perubahan gigi yang didapat dari gigi-1 kecepatan maks 20 km/jam, gigi-2 kecepatan maks 40 km/jam, gigi-3 kecepatan maks 60 km/jam dan gigi-4 kecepatan maks 80 km/jam. Pada kendaraan listrik ini pengukuran pada Ampere dan voltase dilakukan guna mengamati performa motor dan baterai sebagai komponen utama dan didapatkan nilai lonjakan pada setiap pergantian gigi.Lonjakan tersebut terjadi akibat dari kombinasi pijakan gas ,rem dan kopling yang bergantian guna mendapatkan nilai akselesari yang nyaman.

Page 6 of 13 | Total Record : 123

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