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Prihatin Oktivasari
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INDONESIA
JURNAL POLI-TEKNOLOGI
Published by Politeknik Negeri Jakarta
ISSN : 14122782     EISSN : 24079103     DOI : https://doi.org/10.32722/pt.v20i1
Core Subject : Science, Engineering,
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation
Poli-Teknologi Journal is a journal, which began publication in 2002, published by the Research and community service Unit of Politeknik Negeri Jakarta. It starts from Volume 1 Number 1 in January 2022 for printed version; ISSN (print) 1412-2782 and ISSN (online) 2407-9103. Poli-Teknologi Journal is a series of scientific publications in applied science and technology area from the perspective of a multi and interdisciplinary studies and it is published 3 times in year.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 22 No. 3 (2023)" : 5 Documents clear
Improve Finish Honing of Volume Removal and Surface Roughness with Different Types of Abrasive Material Gilang Awan; Muhammad Fitri; Adlan Mizan; Muhammad Miftah Rafi; Hasan Anugrah
Jurnal Poli-Teknologi Vol. 22 No. 3 (2023)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v22i3.5723

Abstract

Honing is a method for finishing in manufacturing industries. For the finishing process, a long process would be the challenge. One of the parameters that affected the time of process is volume removal from the surface of the product. The experiment to increase volume removal used several abrasive materials like sandpapers, alumina stone, white alumina stone, and diamond. The quality of the product was determined by the roughness of the surface. The result of this experiment was that the honing process with diamond and white alumina stone had the best volume removal compared to basic honing. The volume removal was raised up to 3 times. The volume removal was 127 mm3/minutes and increased to 344 mm3/minutes for diamond and 382 mm3/minutes for white alumina grinder cup. Quality of surface from honing process with diamond was as good as basic honing with the value of 0.2 µm for basic honing and 0.7 µm for diamond and white alumina has surface roughness much higher than basic honing with the value of 3.2 µm
Initial Design of Dual Axis Solar Tracking System with the Addition of Camera and Cooling System Hafidz Zharif; Dian Budhi Santoso; Reni RahmaDewi
Jurnal Poli-Teknologi Vol. 22 No. 3 (2023)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v22i3.5821

Abstract

Solar panels have been widely used to determine solar energy as an electrical energy generator. However, the installation of solar panels is still static, so it cannot follow the sun's movement optimally. Solar panels with dual-axis tracking have a wide range in the tracking process. The range that can be tracked by dual-axis tracking is azimuth angle and altitude, while single-axis tracking can only choose one side of the angle. In this study, the initial design of the dual-axis solar tracking system was made with cameras and cooling systems combined with heatsinks and tubular pipes. The design made is in the form of a CAD design using SolidWorks software, and the design made will be used for subsequent research, In this solar panel, the fill factor results are 0.634, and the efficiency of solar panels is 17.53% with the addition of a cooling system which can reduce the temperature of solar panels is expected to be higher efficiency. The study results were obtained in the design of a solar tracker with the addition of a cooling system that will later reduce the temperature and increase the efficiency of solar panel about 0.38% every 1℃ decreases of temperature.
Desain Alat Kompaksi Untuk Produksi Glass Cosindo (Coin Sejarah Indonesia) Dengan Material Serbuk Dari Sampah Botol Kaca Muhamad; Reival Rey Yusti; Arvian Iswahyudi
Jurnal Poli-Teknologi Vol. 22 No. 3 (2023)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v22i3.5724

Abstract

Currently the use of glass material as bottles or beverage packaging is decreasing, but the bottle waste that was used in previous time is still left. This become problems in society. Processing that is usually done by melting glass bottles, but not all can be done with this method. because of this, a new method for processing glass bottle waste deserves to be researched and applied. This study aims to design a tool that can be used for printing glass materials using the compaction method. The compacting tool is designed to print glass powder with a pressure of 5 tons. By making this tool, the variety of glass processing will increase. In addition to glass materials, this tool can also be used to print other materials. This tool will be designed using Solidworks software. The design process begins with manual calculations for construction strength and material selection, then 3D models and 3D assemblies are made. The process ends by simulating the software. The results of the simulation show the strength of the tool construction based on the planning and calculations that have been done.
Perancangan dan Implementasi Sepeda Motor Trail Listrik untuk Pengembangan Produk di PT. LEN Industri (Persero) Ade irma Wantini; Ganis Sanhaji; Rizal Mi'raz; Wahid Lalang Buana
Jurnal Poli-Teknologi Vol. 22 No. 3 (2023)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v22i3.5775

Abstract

Abstrak: Sepeda motor merupakan sarana transportasi paling populer di Indonesia, namun seiring dengan hal itu isu menipisnya minyak bumi semakin santer ditambah lagi sepeda motor dengan BBM menjadi penyumbang gas karbon sebanyak 50 % dari keseluruhan gas karbon dunia. Solusi alternatif dari permasalahan tersebut adalah penggunaan Energi Baru Terbarukan (EBT) di bidang transportasi salah satunya sepeda motor listrik. Selain itu pengembangan sepeda motor listrik telah ada dalam peraturan presiden no. 55 tahun 2019. Pada artikel ini memuat perancangan sepeda motor trail listrik dengan motor listrik 3000 Watt dan Baterai 72V Adapun tahapan metode yang digunakan mulai dari perencanaan konsep yaitu menentukan rumusan masalah dan tujuan, dilanjut dengan perolehan data dari wawancara dan studi literatur, lalu dilanjut ke proses desain, implementasi atau proses perakitan komponen dan yang terakhir proses uji coba dan analisis data hasil. Proses uji coba dilakukan dengan 3 jenis uji coba yaitu uji coba berdasarkan fungsional instrument dengan hasil akurasi 100% berfungsi dengan baik dari 16 fitur yang ada, uji coba dengan dyno test menghasilkan torque maksimal sebesar 21 N/m saat tarikan gas pertama dan kedua, horse power sebesar 13,1 HP pada tarikan gas pertama, dan kecepatan maksimal sebesar 94,9 kph, dan uji coba langsung dijalan dengan 2 penumpang menghasilkan kecepatan maksimal 67,82 Km/jam dengan kecepatan rata-rata sebesar 20,66 Km/jam dan konsumsi energi sebesar 43 Wh/Km pada pengujian pertama. Dan menghasilkan kecepatan maksimal 28,35 Km/jam dengan kecepatan rata-rata 8,69 Km/jam dan mengkonsumsi energi sebesar 39 Wh/km pada pengujian kedua. Penelitian ini diharapkan dapat menjadi acuan untuk penelitian-penelitian selanjutnya sehingga dapat lebih dikembangkan dengan menggunakan komponen dan metode lain. Kata kunci: 3 KW,72 V, Dyno Test, Perancangan, Sepeda motor listrik.
Optimalisasi Kinerja Panel Surya Berdasarkan Waktu Tunda Pergerakan Solar Tracker Edwin Kamal; Adi Setiawan; Sri Yatmani; Ulfah Khairiyah Luthfiyani
Jurnal Poli-Teknologi Vol. 22 No. 3 (2023)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v22i3.5840

Abstract

Secara umum energi surya merupakan energi yang berasal dari sinar dan panas matahari yang kemudian diubah menjadi energi listrik. Energi elektromagnetik yang dipancarkan oleh matahari ini bersifat terus menerus dan ramah lingkungan karena tidak menimbulkan pencemaran apapun di dunia ini. Oleh sebab itu, ketika meluasnya kesadaran akan lingkungan mulai muncul, energi surya menjadi alternatif paling potensial sebagai sumber energi terbarukan. Meskipun energi surya merupakan sumber energi yang baik, dibutuhkan metode terbaik untuk meningkatkan efektifitas panel surya dalam menyerap energi matahari dengan memastikan posisinya selalu tegak lurus terhadap arah sinar matahari. Salah satu metodenya adalah dengan menggunakan solar tracker yang dapat membuat panel surya bergerak secara dinamis mengikuti arah datangnya sinar matahari. Telah banyak dikembangkan desain sistem solar tracker dan metode pengujiannya untuk mendapatkan penyerapan energi surya secara maksimal dengan menggunakan pelacak surya secara otomatis. Dalam penelitian ini digunakan solar tracker yang dibuat dengan modul Arduino Mega 2560 sebagai otak komputer yang memproses data, board NodeMCU dan bahasa pemrograman PHP sebagai piranti utama dalam sistem pemantauan, motor servo sebagai penggerak, dan dua buah Light Dependent Resistor (LDR) sebagai sensor untuk melacak pergerakan matahari dengan variasi pergerakan solar tracker yang dilakukan setiap 1, 5, 10, dan 15 menit. Hasil penelitian menunjukkan bahwa energi optimum dari hasil perbandingan antara panel surya statis dan dinamis adalah dengan men-setting pada delay 10 menit dengan perbandingan 9,9% lebih tinggi daripada statis.

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