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All Journal Rekayasa Mesin Jurnal Rekayasa Mesin Jurnal Engine: Energi, Manufaktur, dan Material
Pratiwi, Ilham Ayu Putri
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Control & Systems Engineering Energy 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.
Co-Authors Afif, Muhammad Thowil Aisyah, Nyayu Ariyadi, Hifni Mukhtar Bahari, Galuh Bahiuddin, Irfan Hakim, Sinta Uri El Ignatius Aris Hendaryanto Krisnaputra, Radhian SETYAWAN, PENDI Sugiyanto - Wicaksono, Dimas Aryo