Browsing by Author "Llivisaca Villazhañay, Juan Carlos"

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    Diseño de una línea de producción basada en Lean Manufacturing y simulación para la industria ecuatoriana de manufactura
    (Universidad de Cuenca. Facultad de Ciencias Químicas, 2026-02-19) Echeverría Peña, Mateo Sebastián; Llivisaca Villazhañay, Juan Carlos
    This study analyzes and redesigns a horizontal freezer production line in the Ecuadorian manufacturing sector. The integration of Lean Manufacturing principles and discrete-event simulation aims to assess the technical feasibility of implementing a specialized production line under a projected demand growth scenario. The research follows an applied, quantitative, non-experimental approach structured into four phases: current production system diagnosis, specialized layout design under technical, ergonomic and logistical criteria, scenario modeling and simulation using FlexSim software, and comparative analysis through statistical methods. The literature review was conducted following the PRISMA 2020 methodology, ensuring scientific rigor and traceability. The diagnosis revealed operational imbalances and high variability among workstations. Average processing times ranged from 36 s to 84 s. A primary constraint was located at the compressor securing station. Utilization reached values close to 95% and exceeded the system's nominal takt time (79 s). Two specialized layout alternatives were proposed and evaluated through simulation using key performance indicators such as throughput, average system time, workstation utilization, and work-in-process inventory (WIP). Results show significant improvements in flow stability, workload balance, and WIP reduction, particularly in the specialized layout 2. Student's t-test confirmed that differences among simulated scenarios are statistically significant (p < 0.05). Production line specialization, validated through simulation, represents a technically viable alternative. The combined use of Lean Manufacturing and discrete-event simulation constitutes a robust approach for the redesign of manufacturing systems.