Dr. Carlos Enrique Torres Aguilar

Universidad Juarez Autonoma de Tabasco
Mexico

Abstract Title: Analyzing Heat Transfer in Solar-Powered Ventilation to Enhance Energy Efficiency in Buildings

Biography:

Carlos Enrique Torres Aguilar completed his PhD at the age of 30 years from National Center for Research and Technological Development, México. He has published more than 10 papers in reputed journals and is associate editor of the journal Applied Thermal Engineering-Elsevier. He is a National System of Researchers and Professor-Researcher member at the Universidad Juárez Autónoma de Tabasco, México.

Research Interest:

In this work, the thermal behavior of a solar chimney model was evaluated for its application in buildings as a strategy to improve energy efficiency and reduce dependence on artificial air conditioning systems. The study focused on analyzing airflow and heat transfer within the solar chimney, considering the specific climatic conditions of Villahermosa, Tabasco, throughout the year. To this end, theoretical and numerical methods were employed, using an approach based on global energy balances to represent the processes of conduction, convection, and thermal radiation in the different components of the system. The methodology incorporated the analogy with electrical circuits, allowing the thermal resistances of materials to be represented and facilitating the analysis of the system’s behavior through nodal modeling. A computational code was also developed in C++ to solve the model using the Gauss-Seidel and Jacobi iterative methods. The meteorological data used was obtained from CONAGUA, considering temperature, wind speed, solar radiation, and atmospheric pressure variables. The study varied the number of nodes and the orientation of the chimney. Among the most relevant results, it was found that the best conditions for induced mass flow occurred on warm days, reaching a maximum of 0.05508?kg/s, while on cold days, minimum values as low as 0.000046?kg/s were recorded. It was observed that east and west orientations offered better thermal performance. The results show that properly designed and oriented solar chimneys represent an efficient alternative for natural ventilation and improving thermal comfort in buildings, with great application potential in warm and humid climates. Keyword: Solar chimney, Building, Comfort, Ventitalion.