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The impact of vertical greenery system on building thermal performance in tropical climates

Mohammad Shuhaimi, Nur Dinie Afiqah, Mohamed Zaid, Suzaini, Esfandiari, Masoud, Lou, Eric ORCID logoORCID: https://orcid.org/0000-0001-7099-1426 and Mahyuddin, Norhayati (2021) The impact of vertical greenery system on building thermal performance in tropical climates. Journal of Building Engineering, 45. p. 103429. ISSN 2352-7102

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Abstract

The thermal benefits of Vertical Greenery System (VGS) in providing thermal comfort, reducing internal building temperature, and lowering operational energy consumption are not widely known. There is a lack of research and technical knowledge on the effects of vertical greenery systems related to thermal performance, especially in tropical climates, such as that of Malaysia. Therefore, this paper addresses this gap by investigating the effect of VGS on heat transfer and the thermal performance of hypothetical buildings. In this paper, a data prediction method is used to identify the overall thermal transfer value (OTTV) from several hypothetical case studies. A variety of combinations of variables have been used to identify the best design with the lowest OTTV reduction through VGS. From the calculation, Linear Greenery System achieved the highest OTTV reduction with an average of 6.87%, followed by Modular Green Wall (6.82%), Double-skin Green Facades (2.97%), and Direct Green Facades (1.32%). Therefore, this paper can conclude that Linear Green Wall is the best greenery system for reducing heat transfer for the tropical climate of Malaysia.

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