This paper proposes the design of a quasi-experimental time-series model comprising lean manufacturing tools—such as the value stream mapping and 5S's—with the aim of reducing the level of waste and losses in a micro-company dedicated to the production of Alpaca wool clothing in Junín, Perú. The model implementation managed to reduce the level of waste by 7%, increase the efficiency in material consumption, and reduce the cycle time and total supply time. The implementation of the model allowed reducing the level of waste in the production process and creating an organizational culture based on order, cleanliness, discipline, and teamwork.

This study examines the internal flow dynamics within the mixing chamber of a combined cycle thermoelectric plant (steam-gas), with a particular focus on the distribution of key parameters such as temperature, pressure, and density. Both the continuity and energy equations were subjected to analytical and numerical simulations for validation purposes. In the numerical simulation, a three-dimensional tetrahedral mesh was constructed using Ansys Meshing software, and the resulting data was processed using Ansys Fluent. The turbulence model employed was the k-epsilon model, and the energy equation was also utilized. The results demonstrated the effective transfer of energy and the uniform distribution of temperature and pressure throughout the mixing chamber. This study makes a significant contribution to the field of thermal engineering and provides a robust foundation for future research ...

This study presents the simulation of internal flow of a hydraulic turbine using CFD based on pressure-swirl atomizer technology, typically used in combustion chambers of rocket engines. The proposed model is equipped with a swirl chamber with stabilizer included, dual manifold system and a rotor, each of these elements will be simulated to validate its functionality, prior to implementation and subsequent experimental testing. The results show that it is possible to produce the spray output jet even if there are interferences within the swirl chamber such as the rotor itself and the stabilizer. In addition, due to the tangential speeds produced within the atomizer may be viable to place a rotor to produce mechanical power. This study serves as a starting point to carry out future experimental tests to validate the generated power and efficiency of the proposed system. The results presen...