Percentage of hours of thermal comfort with indirect evaporative cooling techniques in roof ponds in an arid climate

Authors

  • Luis Carlos Herrera Universidad Autónoma de Ciudad Juárez, Chihuahua
  • Gabriel Gómez-Azpeitia Universidad de Colima
  • Eduardo González Cruz Universidad del Zulia, Maracaibo

Keywords:

Thermal comfort, arid climate, roof pond, passive cooling techniques

Abstract

This document presents a comparative study of the percentage of time that the operating temperature is located within the limits of the comfort zone proposed by ASHRAE Standard 55-2010 for naturally ventilated buildings. The temperatures studied were recorded inside of experimental roof pond modules, located in a warm, dry climate. Five passive cooling techniques were applied to the modules. The experiment was carried out in Chihuahua, Mexico (Lat.: 28N, Long.: 106W, altitude: 1,425m) during the summer of 2012. The results indicate that roof ponds are an excellent alternative to increase the percentage of hours of comfort, because they provide up to 30% more hours on average with respect to a control module without a roof pond. If radiative cooling is added at night, the percentage increases to 40%, and incorporating thermal mass it increases up to 65%. Even, in some cases, the cooling is so intense that it exceeds the lower range of comfort in morning hours.

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Published

2014-06-30

How to Cite

Herrera, L. C., Gómez-Azpeitia, G., & González Cruz, E. (2014). Percentage of hours of thermal comfort with indirect evaporative cooling techniques in roof ponds in an arid climate. Sustainable Habitat, 4(1), 46–55. Retrieved from https://revistas.ubiobio.cl/index.php/RHS/article/view/443

Issue

V.4, N.1 (2014): June 2014

Section

Artículos

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