Archives

  • March 2025
    Vol. 1 No. 1 (2025)

    The March 2025 edition of KOLECER Scientific Journal of Mechanical Engineering presents a diverse array of innovative research in the fields of engineering and applied technology, encompassing manufacturing optimization, industrial risk analysis, as well as the development of energy and transportation technologies. The first article introduces a novel model for determining end milling parameters based on screening tests conducted on AA6041 aluminum alloy, with the aim of enhancing both efficiency and accuracy in machining processes. Subsequently, a study on subsea pipeline replacement projects utilizing the HIRADC and FTA methods analyzes potential hazards and mitigation strategies to improve occupational safety. The optimization of a coconut husk peeler machine design with a capacity of 260 units per hour is also featured in this edition, with findings indicating increased efficiency within the coconut processing industry. In the transportation sector, research on hybrid electric bicycles equipped with a 60A Speed Control controller explores system performance, energy efficiency, and durability under various operational conditions.

    Another study addresses the optimization of combustion quality in coconut shell briquettes using the gravimetric method, aiming to enhance efficiency and durability as an alternative energy source. Additionally, the development of a control system for a transformer rectifier used in cathodic protection with dynamic loads is proposed as a solution to manage corrosion in industrial systems operating under extreme conditions.

    Lastly, a study on impeller design for a centrifugal pump with five blades driven by a 40 cc four-stroke gasoline engine provides optimal design recommendations to improve system performance and efficiency across a range of engineering applications.

    Through these in-depth investigations, the March 2025 edition is expected to deliver significant scholarly contributions to both academics and practitioners in the field of engineering and related industries.

    Editorial Team
    Kolecer Scientific Journal of Mechanical Engineering

  • September 2025
    Vol. 1 No. 2 (2025)

    KOLECER Journal Vol. 1 No. 2, September 2025, presents six scholarly articles focusing on development and analytical studies in mechanical engineering, manufacturing, energy systems, and instrumentation. This issue has been designed to enrich the body of applied scientific knowledge through analytical, experimental, and engineering-based design approaches.

    The first article discusses the analysis of the strength and Safe Working Load (SWL) of a single crane hook using SolidWorks, with emphasis on stress evaluation and safety factors for lifting components to ensure operational reliability and safety. The second article examines the influence of blade configuration in a simple shredding machine on the quality of shredded PLA and PET, with particular attention to blade design optimisation to enhance plastic material shredding performance. The third article, entitled Development of Rotary Fixture on Laser Engraver Machine, presents the design and development process of a rotary fixture intended to improve flexibility and precision in laser engraving of cylindrical workpieces. Subsequently, the fourth article reviews the analysis of heat transfer and energy conversion in split-type air conditioning systems, evaluating thermal performance and energy efficiency under specific operating conditions. The fifth article addresses the calibration and uncertainty analysis of DHT22 temperature sensor measurements using a calibrated digital thermometer as a reference instrument, aiming to improve measurement accuracy and reliability for experimental and industrial applications. The final article investigates the effect of spindle rotational speed variation on the surface roughness of Aluminium 6061 in milling processes, with emphasis on the relationship between machining parameters and the resulting surface quality.

    KOLECER Journal Vol. 1 No. 2, September 2025, is expected to serve as a valuable scientific reference for students, researchers, and engineering practitioners, and to advance knowledge and technology in applied engineering.

    Editorial Team
    Kolecer Scientific Journal of Mechanical Engineering