Effects of a Vertical Green Façade on the Thermal Performance and Cooling Demand

Traditional architecture has often applied greenery in the design to improve the thermal performance of indoor spaces. Such a bioclimatic approach is not often seen in the contemporary tube houses of Vietnam. Vietnamese architects recently started to focus more on greenery solutions for housing pro...

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Main Authors: Phan Anh Nguyen, Regina van Bokel, Andy van den Dobbelsteen
Format: Article
Language:English
Published: Stichting OpenAccess 2019-08-01
Series:Journal of Facade Design and Engineering
Subjects:
Online Access:https://jfde.eu/index.php/jfde/article/view/183
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author Phan Anh Nguyen
Regina van Bokel
Andy van den Dobbelsteen
author_facet Phan Anh Nguyen
Regina van Bokel
Andy van den Dobbelsteen
author_sort Phan Anh Nguyen
collection DOAJ
description Traditional architecture has often applied greenery in the design to improve the thermal performance of indoor spaces. Such a bioclimatic approach is not often seen in the contemporary tube houses of Vietnam. Vietnamese architects recently started to focus more on greenery solutions for housing projects. However, the quantitative effects of plants on the building performance has not yet been investigated in Vietnam. This paper reports on an experiment to quantify the benefits of a vertical greening system for thermal performance and energy saving. A typical tube house in Hanoi was selected and two similar rooms were monitored during July and August, 2018. One of the rooms’ façades was covered by the climbing plant Bougainvillea. Outdoor and indoor temperature and energy for air-conditioning were measured for the two rooms to quantify the effect of the greenery on the existing aluminium shading device and a bare window. Results for the green façade showed that the difference between outdoor and indoor temperature can be as high as 8°C. In addition, the climbing plants helped to reduce the indoor temperature by around 1°C and thus cooling energy was saved by up to 35%.
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spelling doaj.art-7aa7a082bd2d448c8a9da7604ec9ed3b2023-03-15T13:53:08ZengStichting OpenAccessJournal of Facade Design and Engineering2213-302X2213-30382019-08-017210.7480/jfde.2019.2.3819183Effects of a Vertical Green Façade on the Thermal Performance and Cooling DemandPhan Anh Nguyen0Regina van Bokel1Andy van den Dobbelsteen2TU Delft, Faculty of Architecture & the Built EnvironmentTU Delft, Faculty of Architecture & the Built EnvironmentTU Delft, Faculty of Architecture & the Built Environment Traditional architecture has often applied greenery in the design to improve the thermal performance of indoor spaces. Such a bioclimatic approach is not often seen in the contemporary tube houses of Vietnam. Vietnamese architects recently started to focus more on greenery solutions for housing projects. However, the quantitative effects of plants on the building performance has not yet been investigated in Vietnam. This paper reports on an experiment to quantify the benefits of a vertical greening system for thermal performance and energy saving. A typical tube house in Hanoi was selected and two similar rooms were monitored during July and August, 2018. One of the rooms’ façades was covered by the climbing plant Bougainvillea. Outdoor and indoor temperature and energy for air-conditioning were measured for the two rooms to quantify the effect of the greenery on the existing aluminium shading device and a bare window. Results for the green façade showed that the difference between outdoor and indoor temperature can be as high as 8°C. In addition, the climbing plants helped to reduce the indoor temperature by around 1°C and thus cooling energy was saved by up to 35%. https://jfde.eu/index.php/jfde/article/view/183green facadethermal performancecooling demand
spellingShingle Phan Anh Nguyen
Regina van Bokel
Andy van den Dobbelsteen
Effects of a Vertical Green Façade on the Thermal Performance and Cooling Demand
Journal of Facade Design and Engineering
green facade
thermal performance
cooling demand
title Effects of a Vertical Green Façade on the Thermal Performance and Cooling Demand
title_full Effects of a Vertical Green Façade on the Thermal Performance and Cooling Demand
title_fullStr Effects of a Vertical Green Façade on the Thermal Performance and Cooling Demand
title_full_unstemmed Effects of a Vertical Green Façade on the Thermal Performance and Cooling Demand
title_short Effects of a Vertical Green Façade on the Thermal Performance and Cooling Demand
title_sort effects of a vertical green facade on the thermal performance and cooling demand
topic green facade
thermal performance
cooling demand
url https://jfde.eu/index.php/jfde/article/view/183
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AT reginavanbokel effectsofaverticalgreenfacadeonthethermalperformanceandcoolingdemand
AT andyvandendobbelsteen effectsofaverticalgreenfacadeonthethermalperformanceandcoolingdemand