Parametric Study on Determining Optimum Shading Techniques for Urban High-Rise Dwellings
Open Access
- 30 July 2019
- journal article
- research article
- Published by MDPI AG in Urban Science
- Vol. 3 (3), 85
- https://doi.org/10.3390/urbansci3030085
Abstract
Shading techniques constitute one of the most passive, beneficial strategies for reducing energy consumption in urban dwellings. Shading affects many factors, for example, the solar gains and radiations falling on the façade, which are considered the most significant in increasing the cooling energy demand in hot climates. This paper conducts a parametric study on external and internal shading devices and establishes their impact on energy consumption, daylight levels, and ventilation. The work was conducted using Integrated Environmental Simulation Virtual Environment (IES-VE) and Computational Fluid Dynamics (CFD) numerical methods. The results revealed that optimised shading can influence savings in terms of energy and cooling, in addition to the enhancement of daylighting and reduction of glare. After studying all these factors associated with the different shading techniques investigated, the findings revealed that all shades affect the energy, daylight and ventilation parameters positively. However, despite all external and internal shadings showing improvements, the egg crate shade was determined as that which provided the optimum energy saving, while enhancing daylight and improving natural ventilation for a sustainable building design.Keywords
This publication has 18 references indexed in Scilit:
- Urban form and household electricity consumption: A multilevel studyEnergy and Buildings, 2018
- Potential of Upgrading Federal Buildings in the United Arab Emirates to Reduce Energy DemandProcedia Engineering, 2017
- Potential of shading devices and glazing configurations on cooling energy savings for high-rise office buildings in hot-humid climates: The case of MalaysiaInternational Journal of Sustainable Built Environment, 2016
- A Study of Shading Device Configuration on the Natural Ventilation Efficiency and Energy Performance of a Double Skin FaçadeProcedia Engineering, 2015
- Using passive cooling strategies to improve thermal performance and reduce energy consumption of residential buildings in U.A.E. buildingsFrontiers of Architectural Research, 2014
- Impact of external shading devices on thermal and daylighting performance of offices in hot climate regionsSolar Energy, 2014
- Comparative advantage of an exterior shading device in thermal performance for residential buildingsEnergy and Buildings, 2012
- The energy savings potential of using dynamic external louvers in an office buildingEnergy and Buildings, 2010
- Evaluating the potential impact of global warming on the UAE residential buildings – A contribution to reduce the CO2 emissionsJournal of Affective Disorders, 2009
- Towards green buildings: Glass as a building element—the use and misuse in the gulf regionRenewable Energy, 2006