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All Journal Rekayasa Mesin Jurnal Rekayasa Mesin Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Mekanik Terapan
Pratiwi, Ilham Ayu Putri
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Automotive Engineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisis Perbandingan Baterai Lithium-Ion, Lithium-Polymer, Lead Acid dan Nickel-Metal Hydride pada Penggunaan Mobil Listrik - Review Afif, Muhammad Thowil; Pratiwi, Ilham Ayu Putri
Rekayasa Mesin Vol 6, No 2 (2015)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (145.638 KB) | DOI: 10.21776/ub.jrm.2015.006.02.1

Abstract

A battery is an important part of electric vehicle which is converting the chemical energy into electrical energy. There are two types of battery based on the occurrence i.e. primary and secondary batteries. In the market there are a lot of secondary battery types for electric vehicle i.e. Lithium-ion, Lithium Polymer, Lead acid, and Nickel Metalh Hydrarde batteries. Because of that, a study comparation of secondary battery types was needed. Meta-analysis method was used to analyze the comparison between secondary battery types. The results showed that each battery have different spesifications, advantages, and disadvantages. There are a lot of consideration to choose battery for electric vehicle including initial cost, life time, mass, volume, temperature sensitivity, acces to care and acces to product.
Revolutionizing Agriculture: Electric Tractors for Indonesian Sustainable Farming Krisnaputra, Radhian; Aisyah, Nyayu; Hakim, Sinta Uri El; Pratiwi, Ilham Ayu Putri; Bahari, Galuh; Bahiuddin, Irfan; Sugiyanto, Sugiyanto; Hendaryanto, Ignatius Aris; Wicaksono, Dimas Aryo; Setyawan, Pendi
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 8 No. 1 (2024)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v8i1.1652

Abstract

The global shift towards electrification has extended its reach to non-road mobile machinery, with a primary focus on agricultural applications. This growing trend reflects the larger shift towards sustainability and the minimization of environmental effects. Electric tractors and other farm machinery have gained popularity due to their environmental benefits, cost savings, and technological advancements. The electric non-road vehicles are not only quieter and more environmentally friendly but also offer the potential for reduced operational costs, making them a compelling choice for farmers looking to modernise their equipment while adhering to stringent environmental regulations. Thus, the concept of an electric tractor becomes an important topic to be discussed. This paper will discuss the development of tractors in Indonesia and proposed design for electric tractors that are suitable for Indonesia to support sustainable farming.
Evaluasi Pemilihan Refrigeran Ramah Lingkungan Untuk Sistem Pemanfaatan Panas Buang Mesin Diesel Aisyah, Nyayu; Ariyadi, Hifni Mukhtar; Pratiwi, Ilham Ayu Putri; Sugiyanto, Sugiyanto
Jurnal Rekayasa Mesin Vol. 19 No. 2 (2024): Volume 19, Nomor 2, Agustus 2024
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v19i2.5761

Abstract

Penelitian ini mengevaluasi pemilihan refrigeran untuk sistem pemanfaatan panas buang mesin diesel dengan siklus Organic Rankine Cycle (ORC). Pemilihan refrigeran yang tepat merupakan faktor kunci dalam meningkatkan efisiensi sistem ORC, mengurangi dampak lingkungan, dan memastikan keselamatan operasi. Dalam penelitian ini, beberapa refrigeran dievaluasi berdasarkan sifat termofisika dan aspek keselamatan untuk menganalisis Total Equivalent Warming Impact (TEWI) dan performa sistem dari masing-masing refrigeran. Performa sistem ORC dievaluasi melalui pemodelan termodinamika secara matematis menggunakan MATLAB. Hasil simulasi menunjukkan bahwa keempat refrigeran memiliki efisiensi termal yang cukup tinggi, namun dengan nilai TEWI yang bervariasi. R600a memiliki nilai total TEWI terendah, yaitu 264.59 kgCO2eq/tahun, sedangkan R134a memiliki nilai total TEWI tertinggi, yaitu 4436.96 kgCO2eq/tahun. Berdasarkan hasil evaluasi, R600a merupakan refrigeran terbaik untuk digunakan dalam sistem pemanfaatan panas buang mesin diesel dengan siklus ORC, dengan mempertimbangkan efisiensi termal, aspek keselamatan, dan dampak lingkungan.
Pemanfaatan Uap Panas Insinerator untuk Produksi Pupuk Organik di Panti Asuhan dan Pondok Lansia Al-Maa’uun, Wonosobo Pratiwi, Ilham Ayu Putri; Krisnaputra, Radhian; Aisyah, Nyayu; Bahiuddin, Irfan; Maulana, Arju Ridho; Sena, Zhafran Huda
J-Dinamika : Jurnal Pengabdian Masyarakat Vol 10 No 1 (2025): April
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Panti Asuhan dan Pondok Lansia Al-Maa'uun, Wonosobo menghadapi tantangan dalam mengelola sampah organik secara efisien. Sebagai solusi, program pelatihan ini bertujuan untuk memanfaatkan uap panas insinerator dalam produksi pupuk organik. Metode yang digunakan melibatkan proses insinerasi sampah organik dan anorganik dengan massa awal masing-masing 2 kg. Sampah organik dibakar selama 20 menit, menghasilkan volume pupuk sebesar 400 ml dengan massa 365 g. Di sisi lain, sampah anorganik memerlukan waktu pembakaran lebih lama, yaitu 30 menit. Hasil ini menunjukkan perbedaan signifikan dalam efisiensi pembakaran yang dihasilkan antara kedua jenis sampah. Berdasarkan pembakaran sampah organik, maka akan mengahsilkan pupuk yang berpotensi digunakan sebagai bahan pupuk organik untuk menunjang pertanian dan penghijauan di lingkungan panti asuhan dan pondok lansia. Pelatihan ini tidak hanya menawarkan solusi pengelolaan sampah yang ramah lingkungan, tetapi juga berperan dalam meningkatkan pemahaman masyarakat tentang pentingnya teknologi berbasis insinerator dalam mengelola limbah secara efektif. Program ini diharapkan dapat menginspirasi penerapan teknologi serupa di komunitas lain dengan tujuan keberlanjutan lingkungan dan peningkatan kualitas hidup.
Bamboo Diameter Detection System Based on Image Processing as a Pre-Assessment for an Automated Bamboo Splitting Technology Hakim, Sinta Uri El; Arifianto, Rokhmat; Sugiyanto; Pratiwi, Ilham Ayu Putri; Bahari, Galuh; Krisnaputra, Radhian
Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Vol. 10, No. 2, May 2025
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/kinetik.v10i2.2170

Abstract

Bamboo is recognized for its eco-friendly attributes and rapid growth, serves as a promising sustainable alternative to wood. However, the high production cost of laminated bamboo remains a major challenge due to labor-intensive processes, particularly manual splitting, which affects efficiency and labor costs. To overcome this issue, this study presents an automated bamboo diameter measurement system that leverages Canny Edge Detection and Hough Transform to ensure precise and uniform slat dimensions. A dataset of 100 bamboo images with diameters ranging from 11 - 13 cm was utilized for training and testing. The system achieved a high accuracy, with a coefficient of determination (R²) of 0.973, demonstrating strong predictive reliability. Furthermore, Bayesian Optimization was applied to fine-tune parameters, resulting in an optimized configuration for both Canny Edge Detection and Hough Transform. The proposed system reduces dependence on manual labor, thereby lowering production costs and improving overall manufacturing efficiency. Automation in the bamboo splitting process ensures consistent and precise slat dimensions, supporting scalability and enhancing the economic feasibility of laminated bamboo production. The findings of this study provide a practical and sustainable solution to optimize production, making laminated bamboo a more viable and competitive material in the industry.
Rancang Bangun Mesin Pengering Bilah Bambu untuk Peningkatan Produktivitas Bambu Laminasi Pratiwi, Ilham Ayu Putri; Bahari, Galuh
Jurnal Mekanik Terapan Vol 6 No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i2.7671

Abstract

Laminated bamboo is an engineered composite product made from dried and bonded bamboo strips, offering high potential as an eco-friendly material for construction and furniture applications. One of the critical steps in its production process is the drying of bamboo strips, which aims to reduce moisture content and prevent mold, cracking, and delamination. This study aims to design an energi-efficient bamboo strip drying system to enhance the productivity of the laminated bamboo industry. The system design includes a modular drying chamber, a boiler-based heating system with a centrifugal blower, and corrosion-resistant materials such as stainless steel SS304. Thermal energi demand was calculated using convection heat transfer and total thermal resistance approaches, resulting in a required energi of 212240.42 kJ to dry 250 bamboo strips per cycle in an hour. Computational Fluid Dynamics (CFD) simulations indicate uniform temperature and airflow distribution inside the drying chamber. The thermal efficiency of the system reaches 97.4%, indicating its suitability for industrial application. These findings provide a foundation for developing standardized, efficient, and sustainable bamboo drying systems.
Co-Authors Afif, Muhammad Thowil Aisyah, Nyayu Arifianto, Rokhmat Ariyadi, Hifni Mukhtar Bahari, Galuh Bahiuddin, Irfan Hakim, Sinta Uri El Ignatius Aris Hendaryanto Maulana, Arju Ridho Radhian Krisnaputra Sena, Zhafran Huda SETYAWAN, PENDI SUGIYANTO Sugiyanto - Wicaksono, Dimas Aryo