Parametric Investigation of Traditional Vaulted Roofs in Hot-Arid Climates

Elnokaly, Amira and Ayoub, Mohamed and Elseragy, Ahmed (2019) Parametric Investigation of Traditional Vaulted Roofs in Hot-Arid Climates. Renewable Energy, 138 . pp. 250-262. ISSN 0960-1481

Full content URL: https://doi.org/10.1016/j.renene.2019.01.061

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Parametric Investigation of Traditional Vaulted Roofs in Hot-Arid Climates

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Abstract

In the Mediterranean and North African regions, traditional vaulted roof forms have been widely used due to their significant influence on enhancing thermal indoor conditions. This research parametrically investigates the thermal performance of vaulted roofs, seeking a better understanding of the reciprocal relationship between the solar irradiance received by these roofs and the resulting energy consumption in the hot-arid city of Aswan (23.58oN), Egypt. The methodological procedure is realized through two phases. The annual simulations of solar irradiance and energy consumption are carried out in the first phase, where the quantitative performance of 2,310 different cases are predicted in terms of six vaulted roof forms against eleven key influencing variables. The unsupervised technique of Principal Component Analysis is used in the second phase to reduce the higher dimensionality of the resulting dataset and extract important information from newly established orthogonal principal components. The outcomes of this work aim to provide architects and practitioners with an optimized dataset to use in the design and application of vaulted roof forms and support decision makers addressing the development strategies by providing essential data for setting regulations of newly built environments in harsh hot-arid contexts.

Keywords:Solar Irradiance, Energy Consumption, Vaulted Roofs, Parametric Approach, Component Analysis, Optimisation
Subjects:H Engineering > H221 Energy Resources
K Architecture, Building and Planning > K100 Architecture
K Architecture, Building and Planning > K200 Building
Divisions:College of Arts > School of Architecture & Design > School of Architecture & Design (Architecture)
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ID Code:34736
Deposited On:25 Feb 2019 14:26

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