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Latest articles for Journal of Physics: Conference Series
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Thermal management of a battery pack using fin-embedded phase change material
The present study focuses on the numerical investigation of heat transfer from a battery cell surrounded by phase change material (PCM) with longitudinal fins embedded in it. Three-dimensional transient heat conduction equation is solved numerically in the battery domain, whereas the solidification-melting model adopting Enthalpy-Porosity approach is solved in PCM to obtain liquid fraction and temperature distribution. PCM with 16 fins was found to be quite effective in reducing the battery surface temperature compared to 12, 8, and 4 fins. However, the effectiveness of 16 fins is observed up to 1500 sec till the PCM completely melts into liquid. A maximum reduction of 25 K has been achieved at 1500 sec by adding 16 fins to PCM. Beyond 1500 sec, the temperature rises sharply, exceeding all other cases at 2200 sec. Fins play an essential role in augmenting heat transfer, which benefits in achieving the phase change process in less time to restrict the temperature rise; however, at the same time, when the phase change process completes, fins become detrimental to the system since the temperature of the battery starts rising sharply.
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Preface
It is our great pleasure to present the proceedings of the 8th International Conference on Mechanical, Aeronautical, and Automotive Engineering (ICMAA 2024), held virtually from February 2-4, 2024. We are happy to report that the meeting went exceptionally smoothly, safety protocols were followed, and an enjoyable and stimulating meeting was held. This year, ICMAA is sponsored by Singapore Institute of Electronics (SIE), with support from Sichuan Institute of Electronics, China, National Taiwan University of Science and Technology and Multimedia University, Malaysia, with an emphasis on theoretical and practical aspects, ICMAA 2024 provided a comprehensive platform for researchers and scholars to share their knowledge, insights, and experiences. The Proceedings of the conference contain many excellent papers representing the participants’ research and innovative thinking. All the papers have been checked through rigorous review and processes to meet the requirements of publication. These papers featured a wide range of topics, including but not limited to Applied Mechanics, Automation, Aerospace Propulsion, Computational Fluid Dynamics, Combustion and Emission Control, and Energy Management. We want to express our sincere gratitude to all the authors who contributed their papers to ICMAA 2024. We would also like to thank the members of the organizing committee, the technical program committee, and the reviewers for their hard work and dedication in ensuring the quality of the conference. We hope that the papers included in these proceedings will serve as a valuable resource for researchers and practitioners in mechanical, aeronautical, and automotive engineering. We also hope that ICMAA 2024 has provided a platform for fruitful collaborations and new research initiatives. We look forward to welcoming you to future editions of ICMAA and continuing our journey of exploration and discovery in mechanical, aeronautical, and automotive engineering. Prof. Jia-Yush Yen National Taiwan University of Science and Technology, Taiwan Conference Chair of ICMAA2024 List of Organizing Committees and Peer Review Statement are available in this Pdf.
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Peer Review Statement
All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Double Anonymous • Conference submission management system: Morressier • Number of submissions received: 39 • Number of submissions sent for review: 29 • Number of submissions accepted: 17 • Acceptance Rate (Submissions Accepted / Submissions Received × 100): 43.6 • Average number of reviews per paper: 2 • Total number of reviewers involved: 27 • Contact person for queries: Name: Mei Lin Email: neo_meilin@sie.sg Affiliation: SIE, Sinagpore - Excutive Office
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Study on the morphology and mechanical properties of dissimilar Al/Al-Li alloy T-joints by friction stir welding
Friction stir welding is an emerging solid-state joining technology. With the advantages of small post-weld deformation and high connection performance, it is widely used in the aerospace field. In this paper, the FSW welding process of 7055-T61 Al and 2197-T8 Al-Li dissimilar T-shaped stiffened panel was investigated. The purpose of this paper is to analyze the influence of tool shoulder structure and welding parameters on the morphology and mechanical properties of T-joints. It is found that compared with the shoulder inner concave surface without spiral, the weld defects of shoulder inner concave surface with spiral are less. When the welding speed v is 60 mm/min, the rotation speed w is 350 r/min and the plunge depth h is 0.21 mm, the transverse tensile strength of T-joint is 408 MPa, which reaches respectively 68.0% and 71.6% of the base materials 7055-T61 and 2197-T8. It shows that the welding quality of T-joints is better when it is implemented under the optimal combination of welding process parameters.
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Design of a Robotic 3D Printing System
Additive manufacturing enables the production of complex shapes with a large degree of freedom compared to conventional manufacturing techniques such as injection molding, thermoforming or pressing. In particular, the creation of moving parts, complex structures and large-scale printing remains underexplored and research is constantly expanding. Due to design limitations related to the construction of currently available printers, 3D printing technology is increasingly being combined with robotics. Using a robot to 3D print products eliminates the need to design complex printer structures, which ultimately should simplify the process of manufacturing large-scale products and shorten the time required for preparation and production. The paper deals with the description of the designed 3D printing system and the procedure of the steps of creating a robotic simulation model with the generation of a control program for the FDM 3D printing process by an industrial robot.