Ali, Alsaadi Mutaib Ibrahim
(2024)
Impact Of Building Envelope Modifications On Thermal
Performance Of Classrooms In Typical Schools In Hot Arid Climate Of Oman.
PhD thesis, Perpustakaan Hamzah Sendut.
Abstract
This study addresses a critical oversight in environmental design and energy
conservation for typical government schools in Muscat, Oman, which grapples with
inadequate adaptation to its hot-arid climate, leading to a heavy reliance on mechanical
systems for temperature control. This research examined the thermal performance of
building envelope elements and their impact on indoor air temperature by modifying
the exterior wall, roof, glazing type, window area, and orientation. Simultaneously, it
provided nuanced design recommendations for optimal thermal comfort. The study
was conducted in two pivotal phases. The first phase involved fieldwork measurements
in three secondary schools, providing a real-world snapshot of existing thermal
conditions within such buildings. The second phase employed computer simulations
using Design-Builder software to replicate field measurements, explore hypothetical
scenarios and modify building envelope elements. Winter indoor temperatures
recorded in the fieldwork phase ranged from 24.2oC to 24.8oC, ensuring a baseline
understanding of the existing conditions. In contrast, summer temperatures spanned
from 32.7oC to 33.3oC, illustrating the considerable temperature fluctuations of
typical schools. The recorded field measurements and the simulation results revealed
a close alignment of minimal differences of less than 2oC, highlighting the study's
credibility and strengthening the validity of the proposed design recommendations.
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