Document Type

Article

Publication Date

Fall 9-23-2025

Abstract

This paper investigates the thermal performance of an office floor within the Faculty of Engineering at the British University in Egypt (BUE), located in Cairo, a city characterized by a hot arid climate. The study focuses on understanding the building’s thermal behavior by comparing two identical office rooms: Room 212 (north-facing) and Room 201 (south facing). Utilizing dynamic thermal simulations with TRNSYS 18 for a full year, the research specifically analyzes the impact of these opposite orientations on indoor space temperature, total cooling loads, the monthly heat absorbed by various building surfaces, and the heat absorbed per unit area for each surface. The findings reveal significant disparities in thermal performance, particularly in terms of heat gain and cooling demand, directly attributable to orientation. This research highlights the critical role of facade orientation Academic Editors: Xinlei Zhou, Lin-Rui Jia and Zheng Cao Received: 28 July 2025 Revised: 12 September 2025 Accepted: 18 September 2025 Published: 23 September 2025 Citation: Elshamy, A.I.; Moussa, R.R.; Alghrieb, M.; Elshazly, E.; El-Mahallawi, I.; Safwat, H. Thermal Performance Variations of Office Spaces in Educational Buildings Resulting from Façade Orientation: AnEgyptian Case Study. Buildings 2025, 15, 3437. https://doi.org/ 10.3390/buildings15193437 Copyright: © 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/ licenses/by/4.0/). in mitigating radiative heat absorption and reducing energy consumption in educational buildings within hot climates, providing valuable insights for optimizing building design strategies to enhance thermal comfort and energy efficiency.

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