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Cylinder : Jurnal Ilmiah Teknik Mesin
Published by Universitas Katolik Indonesia Atma Jaya
ISSN : 2252925X     EISSN : 30469821     DOI : https://doi.org/10.25170/cylinder
Core Subject : Science, Engineering,
Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering
Cylinder: Jurnal Ilmiah Teknik Mesin is an open-access peer reviewed journal that aims to publish original articles on research and development in the field of engineering and applied science. Topics of interest include, but are not limited to: - Renewable Energy & Thermofluids - Material & Manufacturing - Mechatronics, Robotics, & Optoelectronics - Mechanical Design & Mechanism - Industrial Engineering & Ergonomics - Automotive Engineering - Environmental Engineering
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 104 Documents
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PEMBANGKIT LISTRIK TENAGA SURYA OFF-GRID TIPE FOTOVOLTAIK: PENGARUH INTENSITAS CAHAYA TERHADAP OUTPUT DAYA, TEGANGAN, DAN ARUS Filian Arbiyani; William Aristo Kurniawan; Rudy Eduard; Djoko Setyanto
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 12 No 1 (2026): April 2026
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v12i1.7427

Abstract

Seiring perkembangan zaman dan bertambahnya populasi penduduk yang membutuhkan sumber energi yang lebih, maka ketergantungan pada energi fosil harus diimbangi dengan suplai energi baru dan terbarukan. Penelitian ini bertujuan untuk mengkaji karakteristik keluaran panel surya tipe fotovoltaik pada sistem PLTS (Pembangkit Listrik Tenaga Surya) off-grid, yaitu pengaruh intensitas cahaya terhadap output daya, tegangan, dan arus. Eksperimen dilakukan selama 12 jam, yaitu pukul 06:00 -18:00, dengan proses pengambilan data dilakukan setiap satu jam. Spesifikasi dari solar panel yang digunakan berjenis polycristalline dengan luas area sebesar 0,00759 m2, dan memiliki spesifikasi daya output maksimal 1,1 watt, arus 0,22 ampere, dan tegangan 5 volt. Hasil penelitian menunjukkan bahwa peningkatan intensitas cahaya berbanding lurus dengan peningkatan daya dan tegangan yang dihasilkan, sedangkan arus cenderung stabil dengan perbedaan arus yang tidak berubah jauh dengan rentang 0,1- 0,2 ampere.
Pendekatan Model Fungsi Non-Linier Perubahan Suhu Pada Pencampuran Zat Cair Menggunakan Bantuan Hukum Entropi Goen Goenawan, Stephanus; Goenawan, Stephanus Ivan
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 12 No 1 (2026): April 2026
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v12i1.7785

Abstract

The Second Law of Thermodynamics, also known as the Law of Entropy, explains that the level of disorder or entropy will continue to increase in a closed system operating in forward time. Along with its development, a further concept emerged called the Second Law of Thermodynamics Point One (2.1) or Goen's Law of Entropy. This law states that the average entropy in a process in the forward direction is always smaller than the average entropy in the backward direction. The backward average entropy process is the opposite of the forward average entropy, which works on the heat function to reflect the forward process. Applying Goen's Law of Entropy, a non-linear model based on the function of time can be created that describes the change in temperature of the combination of two liquids, starting from the initial conditions before mixing to reaching thermal equilibrium in a closed container. The results of this non-linear exponential modeling in mixing two liquids prove the importance of Goen's Law of Entropy as a development of the Second Law of Thermodynamics, with significant benefits in explaining the phenomenon of heat transfer and the process towards equilibrium.
Simulasi Pendinginan Baterai pada Kendaraan Konversi dengan Transmisi Otomatis Sutjiadi, Adrian; Setiawan, Yosua
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 12 No 1 (2026): April 2026
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v12i1.7890

Abstract

This study investigates the thermal behaviour of a converted electric vehicle battery pack under the NEDC and WLTP driving cycles using GT-Suite simulation. The results show that driving conditions significantly influence battery temperature. Under the NEDC cycle, the peak temperature reached 61°C without cooling, which decreased to 50.7°C with passive cooling and 30.1°C with active cooling. In contrast, the more demanding WLTP cycle produced higher thermal stress, with peak temperatures of 75.7°C without cooling and 66.5°C with passive cooling, while active cooling reduced it to 38°C. The findings indicate that rapid acceleration and high-speed operation increase discharge currents, leading to higher heat generation. Although passive cooling reduces thermal stress, it is insufficient to maintain safe operating temperatures under dynamic conditions, whereas active cooling provides effective thermal control. This study highlights the importance of battery thermal management in EV conversions and demonstrates the effectiveness of simulation tools for early-stage thermal evaluation.
Path-Planning Module for Tricycle Mobile Robot Tommy, Tommy; Christiand, Christiand; Wenehenubun, Frederikus
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 12 No 1 (2026): April 2026
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v12i1.7901

Abstract

The path planning module is essential for the navigation of autonomous systems. This research aims to develop a path-planning module in Python programming language using the A* algorithm in conjunction with V-REP software which is used to simulate the path-planning outcome. The A* algorithm is used in this research to implement path-planning for a tricycle mobile robot. Both simulated and physical studies were performed to evaluate the module's performance. In the experiments, inputs of velocity and steering angle are given to the mobile robot at every period as obtained from the simulation regression. The discrepancy between the simulated and physical experimental results was attributed to the inertia force acting on the robot and other factors. The steering angle dominance on a mobile robot also affects the final position of the robot.

Page 11 of 11 | Total Record : 104

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