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Article

Experimental Study and Analysis of Thermal Comfort in a University Campus Building in Tropical Climate

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Department of Energy, Universidad de la Costa, Calle 58 No. 55-66, Barranquilla 080002, Colombia
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Department of Energy and Fluid Mechanics, European University Miguel de Cervantes, Padre Julio Chevalier, 47012 Valladolid, Spain
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Department of Energy and Fluid Mechanics, Engineering School (EII), University of Valladolid, Paseo del Cauce 59, 47011 Valladolid, Spain
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(21), 8886; https://doi.org/10.3390/su12218886
Received: 4 August 2020 / Revised: 10 October 2020 / Accepted: 22 October 2020 / Published: 26 October 2020
This study presents the evaluation of the performance and acceptability of thermal comfort by students in the classrooms of a university building with minisplit-type air-conditioning systems, in a tropical climate. To carry out the study, temperature and humidity measurements were recorded, both outside and inside the selected classrooms, while the students were asked to complete thermal surveys on site. The survey model is based on the template proposed by Fanger and it was applied to a total number of 584 students. In each classroom, the Predicted Mean Vote (PMV) and the Predicted Percentage Dissatisfied (PPD) were estimated according to Fanger’s methodology, as well as the Thermal Sensation Vote (TSV) and the Actual Percentage Dissatisfied (APD), which were obtained from the measurements and the surveys. The results of this study showed that the PMV values, although they may vary with the insulation of the clothing, do not affect the TSV. Furthermore, comparing PMV vs. TSV scores, a 2 °C to 3 °C difference in operating temperature was found, whereby the thermal sensitivity for TSV was colder, so it could be assumed that the PMV model overestimates the thermal sensitivity of students in low-temperature conditions. In addition, an acceptability by 90% with thermal preferences between 23 °C and 24 °C were also found. These results indicate that it is possible to increase the temperature set point in minisplit-type air-conditioning system from 4 °C to 7 °C with respect to the currently set temperatures, without affecting the acceptability of the thermal environment to the students in the building. View Full-Text
Keywords: indoor environmental quality (IEQ); thermal comfort methods; thermal acceptability; tropical climate indoor environmental quality (IEQ); thermal comfort methods; thermal acceptability; tropical climate
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MDPI and ACS Style

Balbis-Morejón, M.; Rey-Hernández, J.M.; Amaris-Castilla, C.; Velasco-Gómez, E.; San José-Alonso, J.F.; Rey-Martínez, F.J. Experimental Study and Analysis of Thermal Comfort in a University Campus Building in Tropical Climate. Sustainability 2020, 12, 8886. https://doi.org/10.3390/su12218886

AMA Style

Balbis-Morejón M, Rey-Hernández JM, Amaris-Castilla C, Velasco-Gómez E, San José-Alonso JF, Rey-Martínez FJ. Experimental Study and Analysis of Thermal Comfort in a University Campus Building in Tropical Climate. Sustainability. 2020; 12(21):8886. https://doi.org/10.3390/su12218886

Chicago/Turabian Style

Balbis-Morejón, Milen, Javier M. Rey-Hernández, Carlos Amaris-Castilla, Eloy Velasco-Gómez, Julio F. San José-Alonso, and Francisco J. Rey-Martínez 2020. "Experimental Study and Analysis of Thermal Comfort in a University Campus Building in Tropical Climate" Sustainability 12, no. 21: 8886. https://doi.org/10.3390/su12218886

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