Browsing by Author "Bustillos Yaguana, David Alberto"

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Calidad del ambiente interior de las edificaciones residenciales urbanas de la ciudad de cuenca: determinación de estándares de confort
(2017-12-31) Bustillos Yaguana, David Alberto; Quesada Molina, Juan Felipe
This research has been developed in order to analyze the comfort standards of the indoor environment of the urban houses located at Cuenca and considered some factors as temperature, air quality, natural lightning and acoustic isolation. It performed a longitudinal design that applied a combination of non-experimental methods (qualitative and quantitative) to evaluate the physical measurements and occupants’ perception of their comfort experiences. A general analysis of the indoor environmental conditions of 280 houses was completed in the first instance; a second stage included the quantification of the occupants’ subjective perceptions and the measurement of the environmental and physical variables in 8 of those houses. The international standards are compared with the occupants’ satisfaction responses in terms of their satisfaction and by means of a comparative analysis, comfort ranges are defined adapted to environmental conditions, expectations and local socio-cultural requirements. The thermal comfort range is determined through a regression analysis between the votes of thermal sensation and the interior temperature; the quality of the air is evaluated in the concentration of CO2; visual comfort is analyzed according to the levels of natural lighting and acoustic comfort by means of the acoustic insulation characteristics of the walls of the house.
Indoor enviromental quality of urban residential buildings in Cuenca-Ecuador: comfort standard
(2018) Quesada Molina, Juan Felipe; Bustillos Yaguana, David Alberto
A key factor for achieving healthy environments in residential buildings is the provision of high indoor environmental quality (IEQ) with respect to the acceptance by its occupants, based on levels of the physical parameters which contribute to IEQ. This research focuses on defining the comfort standards of indoor environments of urban dwellings in the city of Cuenca—Ecuador. It takes into account factors such as temperature, air quality, and natural lightning through a mixed method of quantitative and qualitative measurements. Results determined the following values: a comfort temperature (Tn) of 20.12 °C (with ranges from 16.62 °C to 23.62 °C for an acceptance of 80% and from 17.62 °C to 22.62 °C for an acceptance of 90%), a relative humidity between 40–65%, a maximum CO2 concentration of 614.25 ppm, a day light factor of ≥5 for the social area and ≥4 for the bedroom, and a minimum illumination level of 300 lux. With these results, it was observed that the comfort levels of temperature, CO2 concentration, and lighting accepted by local users differ from the standards established in local and international regulations. The determined data constitutes a methodological basis for carrying out similar processes in other localities.
Indoor environmental quality of urban residential buildings in Cuenca-Ecuador: comfort standard
(2018) Quesada Molina, Juan Felipe; Bustillos Yaguana, David Alberto
A key factor for achieving healthy environments in residential buildings is the provision of high indoor environmental quality (IEQ) with respect to the acceptance by its occupants, based on levels of the physical parameters which contribute to IEQ. This research focuses on defining the comfort standards of indoor environments of urban dwellings in the city of Cuenca—Ecuador. It takes into account factors such as temperature, air quality, and natural lightning through a mixed method of quantitative and qualitative measurements. Results determined the following values a comfort temperature (T n) of 20.12 C (with ranges from 16.62 C to 23.62 C for an acceptance of 80% and from 17.62 C to 22.62 C for an acceptance of 90%), a relative humidity between 40–65%, a maximum CO 2 concentration of 614.25 ppm, a day light factor of≥ 5 for the social area and≥ 4 for the bedroom, and a minimum illumination level of 300 lux. With these results, it was observed that the comfort levels of temperature, CO 2 concentration, and lighting accepted by local users differ from the standards established in local and international regulations. The determined data constitutes a methodological basis for carrying out similar processes in other localities. View Full-Text