Abstract
Abstract Natural ventilation was analysed in a low-income dwelling to control open or closed windows according to a dynamic simulation process in sub-humid warm climate. A selective algorithm to control natural ventilation was determined in an annual period per hour with the following findings: a) an algorithm to select open or closed windows was determined, b) comfort hours per year were evidenced with open, closed windows and selective algorithm to operate natural ventilation, and c) the schedule and periods of ventilation control were presented. Meteonorm® data were used on an hourly basis in Design Builder® simulations and the Meteorological System data based on 30 years of measurements were used to determine the comfort range. Conclusions: the potential benefits to be obtained by applying this ventilation strategy with a selective algorithm are observed in sub-humid warm climate.
Highlights
Social housing has the minimum dimensions established by local and federal regulations [1], these characteristics limit ventilation in spaces with reduced volumes
The benchmark case was a social housing in the central region of Mexico with sub-humid warm climate; based on climatic characterization by the National Meteorological System and the Köppen-Geiger classification modified by García to adapt them to the climatic conditions of Mexico [19], [20]
This study adheres to the effort of different authors to find natural ventilation control strategies that increase the permanence of the thermal comfort with the potential to reduce electricity consumption in houses
Summary
Social housing has the minimum dimensions established by local and federal regulations [1], these characteristics limit ventilation in spaces with reduced volumes. 2021 / 25 ventilation strategy with possibilities of increasing the permanence of an established thermal comfort range and, at the same time, ensuring the control of ventilation rate. There is a global interest in establishing natural ventilation strategies to favour the use of passive systems mainly due to its potential to reduce energy costs and increase the thermal comfort of users [3]–[9]. From the perspective of thermal engineering, windows let the heat flow more between the indoor and outdoor [7]. These findings regarding natural ventilation are the background for the question: How can the use of natural ventilation in lowincome dwellings be controlled without the implementation of mechanical systems?
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