International Journal of Engineering Research and Reviews
ISSN 2348-697X (Online) Vol. 8, Issue 1, pp: (1-5), Month: January - March 2020, Available at: www.researchpublish.com
EFFECT OF GREEN FAÇADE ON THERMAL COMFORT IN OFFICE BUILDING 1
Maimuna Yerima, 2Halil Zafer Alibaba
Eastern Mediterranean University, Department Of Architecture Famagusta, North Cyprus, Via Mersin 10 Turkey.
Abstract: Recent concerns of sustainability in architecture have brought about the need for buildings to conserve energy and have less impact on the environment. green façade systems can be used as a passive tool for energy savings in buildings. Those studies proved that installing a vertical greening system on the building facade has many advantages not only for the building but also for the city. Acting as a shading as well as thermal insulation in the building, reducing greenhouse gas emission, and improving the microclimate are some of the advantages of vertical greening system that already being proved. This study aims to review some studies related to the thermal performance of vertical greening system on the building façade. This paper explores the literature on green façade systems and goes on to focus on the effects of this facade on the thermal comfortability in office buildings. By means of literature review we are able to understand the energy saving potential the green façade has on buildings. Keywords: Green façade, vertical greening, Thermal comfort, Façade, plants.
1. INTRODUCTION Thegreen façade is an exterior wall planted with plants used mainly for decorative and ecological purposes. In order to create the vertical greening façade, the plant must have certain characteristics and the soil and water system must occupy the wall or support structure. The plant used for the vertical greening façade is usually the plant of aerial roots, vines and climbing plants as well. For the plant to be able to climb or cascade down the structure, the support structure is used. Vertical garden or green façade are also becoming popular landscape design for home and building, according to (Sunakorn and Yimprayoon, 2011). It is widely known that the plant absorbs heat and light from the sun for the process of photosynthesis and is the best solution to boost air quality in some areas as it absorbs carbon dioxide during the day. Based on these parameters, we can conclude that in a house, the vertical greening system can minimize heat and temperature as well as improve the air quality. Greening the building façade in cities using climbing plants can change the buildingenvironment interaction. This interaction lowers the building's outside temperature and cools the respective internal space s. For their growth, plants absorb significant amounts of solar radiation and biological functions. It serves as a natural barrier to prevent excessive sunlight from the sun. Vertical greenery system (VGS) becomes a strategy for greening the city by taking advantage of larger wall spaces available in urban canyons, reducing heat and energy consumption and increasing the cooling effect on all areas around the building. Today, rising temperatures are due to the replacement of natural vegetation with pavement, buildings and other structures in urban areas. Tree supply can cool the building and its surroundings by shading and reducing the heat emitted and evapotranspiration (Wong et al., 2010; Chiang and Tan, 2009; Cheng et al., 2010; Wong et al., 2010b). The natural process of evapotranspiration is the process through which water is transferred through transpiration from plants from the ground to the atmosphere. It shows that plants provide a cool environment where the soil and plants are perfectly insulated (Papadakis et al., 2001; Wong et al., 2003). Vertical greenery system is a great way to save energy in air conditioning, and its benefits do not end there. It occurred because the plants found in the VGS were present. Living walls and green façades improve thermal comfort in both indoor and outdoor building environments by reducing heat transfer
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