Evaluation of the Effect of Passive Cooling Techniques on Thermal Comfort Using Test Cells in the Northern Region of Brazil

The high consumption of electricity in Palmas, Brazil is a direct consequence of the high temperatures identified throughout the year. Therefore, it is necessary to search for sustainable technologies that contribute to comfort through passive cooling, thus reducing the energy consumption. This work...

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Main Authors: Murilo Marcolini, Ricardo M. S. F. Almeida, Eva Barreira
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/3/1546
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author Murilo Marcolini
Ricardo M. S. F. Almeida
Eva Barreira
author_facet Murilo Marcolini
Ricardo M. S. F. Almeida
Eva Barreira
author_sort Murilo Marcolini
collection DOAJ
description The high consumption of electricity in Palmas, Brazil is a direct consequence of the high temperatures identified throughout the year. Therefore, it is necessary to search for sustainable technologies that contribute to comfort through passive cooling, thus reducing the energy consumption. This work presents the results of an experimental campaign of 11 months, in which the effects of shading devices, the use of a low-emissivity reflective film, the implementation of natural ventilation and the application of reflective painting are evaluated, when applied individually and combined. The results show that when applied individually, natural cross ventilation was the most effective at night, while reflective painting showed better performance during the day. Regarding the combinations of techniques, the best combination occurred when reflective painting was used together with natural ventilation, and the result was a relevant improvement in the performance, ensuring high temperature reductions when compared to the control.
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spelling doaj.art-54ed9a1382aa4e2bbe93c9e80c0321d02023-11-23T15:59:23ZengMDPI AGApplied Sciences2076-34172022-01-01123154610.3390/app12031546Evaluation of the Effect of Passive Cooling Techniques on Thermal Comfort Using Test Cells in the Northern Region of BrazilMurilo Marcolini0Ricardo M. S. F. Almeida1Eva Barreira2Construct-LFC, Faculty of Engineering (FEUP), University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, PortugalConstruct-LFC, Faculty of Engineering (FEUP), University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, PortugalConstruct-LFC, Faculty of Engineering (FEUP), University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, PortugalThe high consumption of electricity in Palmas, Brazil is a direct consequence of the high temperatures identified throughout the year. Therefore, it is necessary to search for sustainable technologies that contribute to comfort through passive cooling, thus reducing the energy consumption. This work presents the results of an experimental campaign of 11 months, in which the effects of shading devices, the use of a low-emissivity reflective film, the implementation of natural ventilation and the application of reflective painting are evaluated, when applied individually and combined. The results show that when applied individually, natural cross ventilation was the most effective at night, while reflective painting showed better performance during the day. Regarding the combinations of techniques, the best combination occurred when reflective painting was used together with natural ventilation, and the result was a relevant improvement in the performance, ensuring high temperature reductions when compared to the control.https://www.mdpi.com/2076-3417/12/3/1546passive coolingtest celltemperature monitoringnatural ventilationreflective paint
spellingShingle Murilo Marcolini
Ricardo M. S. F. Almeida
Eva Barreira
Evaluation of the Effect of Passive Cooling Techniques on Thermal Comfort Using Test Cells in the Northern Region of Brazil
Applied Sciences
passive cooling
test cell
temperature monitoring
natural ventilation
reflective paint
title Evaluation of the Effect of Passive Cooling Techniques on Thermal Comfort Using Test Cells in the Northern Region of Brazil
title_full Evaluation of the Effect of Passive Cooling Techniques on Thermal Comfort Using Test Cells in the Northern Region of Brazil
title_fullStr Evaluation of the Effect of Passive Cooling Techniques on Thermal Comfort Using Test Cells in the Northern Region of Brazil
title_full_unstemmed Evaluation of the Effect of Passive Cooling Techniques on Thermal Comfort Using Test Cells in the Northern Region of Brazil
title_short Evaluation of the Effect of Passive Cooling Techniques on Thermal Comfort Using Test Cells in the Northern Region of Brazil
title_sort evaluation of the effect of passive cooling techniques on thermal comfort using test cells in the northern region of brazil
topic passive cooling
test cell
temperature monitoring
natural ventilation
reflective paint
url https://www.mdpi.com/2076-3417/12/3/1546
work_keys_str_mv AT murilomarcolini evaluationoftheeffectofpassivecoolingtechniquesonthermalcomfortusingtestcellsinthenorthernregionofbrazil
AT ricardomsfalmeida evaluationoftheeffectofpassivecoolingtechniquesonthermalcomfortusingtestcellsinthenorthernregionofbrazil
AT evabarreira evaluationoftheeffectofpassivecoolingtechniquesonthermalcomfortusingtestcellsinthenorthernregionofbrazil