Achieving thermal comfort by applying passive cooling strategies to courtyard houses in Dubai (UAE)
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Date
2014-05
Authors
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Publisher
The British University in Dubai (BUiD)
Abstract
A passive design approach is centered upon integrating the microclimatic requests
into the design to accomplish advanced comfort levels with lower energy depletion.
The purpose of this research was to examine the cooling effect of designated passive
parameters on the outdoor air temperature, wind speed , shading, indoor and outdoor
daylight of an open courtyard. Numerous variables that demonstrated formerly to
improve the outdoor environments were assessed conjointly to achieve the effect that
passive design has over outdoor air temperature.
The computer simulation was discovered to be the utmost appropriate tool for
analysis affording to the resources accessible. Three variables were examined
originally, orientation, geometry and vegetation among these the coolest parameter
were combined into one scenario titled the enhanced scenario. Two scenarios entitled
the existing scenario presents a specific site circumstances and the enhanced scenario
conjoining the coolest parameters, were equated and assessed.
The NW orientation, the highest geometry of a height to width (H:W) ratio of 1.35,
groups of trees and continuous grass were discovered to be the coolest parameters
included in the enhanced scenario. The enhanced scenario was then equated to the
existing case scenario constructed with NNE orientation, 0.85 H:W ratio and no
vegetation which had the higher temperature ranks. The outcomes discovered had a
small increase in improvement of the outdoor air temperature owing to the passive
principles pertained. The proportional outcomes performance cased a smaller progress
among the enhanced scenario and the existing scenario presenting the site conditions
of Dubai the villa owed to the assimilation of a these principles only. The outcomes of
temperature and wind patterns verified and helped in accepting numerous outdoor
performances which are helpful for directing an ecological design for courtyard
spaces.
One of the foremost conclusions was the reality of a limit to the amount of passive
applications to accomplish a substantial enhancement still, an increase in it was
achievable. Nevertheless, the performance of the outdoor parameters remains
somewhat complicated and impulsive that involves additional exploration.
Description
Keywords
thermal comfort, passive cooling, courtyard houses, United Arab Emirates (UAE)