Annual Evaluation of Natural Ventilation Induction in Solar Chimneys under Tropical, Dry, and Temperate Climates of Mexico: A Case Study

Carlos E. Torres-Aguilar (), Pedro Moreno-Bernal (), Sergio Nesmachnow, Karla M. Aguilar-Castro, Luis Cisneros-Villalobos and Jesús Arce
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Carlos E. Torres-Aguilar: División Académica de Ingeniería y Arquitectura, Universidad Juárez Autónoma de Tabasco, Cunduacán 86690, Tabasco, Mexico
Pedro Moreno-Bernal: Facultad de Contaduría, Administración e Informática, Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Morelos, Mexico
Sergio Nesmachnow: Facultad de Ingeniería, Universidad de la República, Montevideo 11300, Uruguay
Karla M. Aguilar-Castro: División Académica de Ingeniería y Arquitectura, Universidad Juárez Autónoma de Tabasco, Cunduacán 86690, Tabasco, Mexico
Luis Cisneros-Villalobos: Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Morelos, Mexico
Jesús Arce: Centro Nacional de Investigación y Desarrollo Tecnológico, Cuernavaca 62490, Morelos, Mexico

Sustainability, 2023, vol. 15, issue 23, 1-29

Abstract: This article presents an annual performance evaluation of single- and double-air-channel solar chimneys for natural ventilation induction under weather conditions in Mexico. The global energy balance method modeled both types of solar chimneys in an unsteady state. The case study evaluated five cities in Mexico. Experimental data of a single-air-channel chimney prototype evaluated under controlled conditions were used to validate the GEB numerical solution. Model validation considers climatic parameters to increase the accuracy of ventilation calculations, e.g., solar radiation, ambient temperature, wind speed, relative humidity, and atmospheric pressure. Experimental evaluation was performed considering the warmest and coldest days in each month of 2018. The modeling time to achieve the initial condition independence for each configuration was 72 h of the physical phenomenon. Results show that double-air-channel solar chimney tested configurations induced at least 70% more airflow than single-air-channel solar chimneys. Both solar chimney airflows were higher than the dwelling-unit ventilation for a space of 54 m 3 , and volumetric flows up to 120 m 3 h − 1 were identified for two studied cities.

Keywords: solar chimney; natural ventilation; energy balance model; heat transfer (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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