Mohammed Mansour Gomaa

@aswu.edu.eg

Architecture Department, Faculty of Engineering, Aswan University
Architecture Department, Aswan University, Egypt

Mohammed Mansour Gomaa


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https://researchid.co/mmgomaa

RESEARCH, TEACHING, or OTHER INTERESTS

Architecture, Urban Studies, Geography, Planning and Development, Environmental Science
20

Scopus Publications

Scopus Publications

  • Development of a novel vegetation cooling effectiveness index under peak thermal stress in hot-arid urban environments
    Ayman Ragab, Jackline Nabil, Amr Sayed Hassan Abdallah, Mohamed Bechir Ben Hamida, Mohammed M. Gomaa
    Sustainable Cities and Society, 2026
  • The Enhanced Heritage Value Index (EHVI): A UNESCO-Aligned Framework for Sustainable Assessment and Prioritization of Egypt’s Heritage Villages
    Mohammed M. Gomaa, Saleh Algethami, Omar Ibrahim Hussein, Ahmed Mohamed Abdo, Emad Mohamed Hassanein
    Architecture, 2025
    Egypt’s heritage villages are living cultural landscapes that remain largely undocumented and insufficiently protected under current national frameworks. This study develops the Enhanced Heritage Value Index (EHVI) a UNESCO-aligned framework designed to quantitatively and qualitatively assess the conservation readiness of heritage villages in Egypt. EHVI was developed through a mixed-method approach integrating conceptual analysis of UNESCO and ICOMOS standards, expert-based weighting of 31 validated heritage indicators, and community perception surveys conducted across seven villages in Luxor Governorate. The EHVI provides a scalable and replicable assessment tool that classifies villages into high, moderate, and low readiness levels, enabling decision-makers to prioritize conservation interventions. As Egypt’s first composite index tailored to rural heritage contexts, this framework bridges national policy needs with international heritage criteria and offers a strategic foundation for future UNESCO nominations and sustainable heritage management. This research fills a critical theoretical and practical gap by operationalizing the Historic Urban Landscape (HUL) paradigm in a rural Egyptian context, thereby advancing heritage assessment methodologies beyond urban-centered models.
  • A Hybrid Earth–Air Heat Exchanger with a Subsurface Water Tank: Experimental Validation in a Hot–Arid Climate
    Safieddine Ounis, Okba Boucherit, Abdelhafid Moummi, Tallal Abdel Karim Bouzir, Djihed Berkouk, et al.
    Sustainability Switzerland, 2025
    Earth–Air Heat Exchangers (EAHEs) exploit stable subsurface temperatures to pre-condition supply air. To address limitations of conventional systems in hot–arid climates, this study investigates the performance of a hybrid EAHE prototype combining a serpentine subsurface pipe with a buried water tank. Installed in a residential building in Lichana, Biskra (Algeria), the system was designed to enhance land compactness, thermal stability, and soil–water heat harvesting. Experimental monitoring was conducted across 13 intervals strategically spanning seasonal transitions and extremes and was complemented by calibrated numerical simulations. From over 30,000 data points, outlet trajectories, thermal efficiency, Coefficient of Performance (COP), and energy savings were assessed against a straight-pipe baseline. Results showed that the hybrid EAHE delivered smoother outlet profiles under moderate gradients while the baseline achieved larger instantaneous ΔT. Thermal efficiencies exceeded 90% during high-gradient episodes and averaged above 70% annually. COP values scaled with the inlet–soil gradient, ranging from 1.5 to 4.0. Cumulative recovered energy reached 80.6 kWh (3.92 kWh/day), while the heat pump electricity referred to a temperature-dependent ASHP totaled 34.59 kWh (1.40 kWh/day). Accounting for the EAHE fan yields a net saving of 25.46 kWh across the campaign, only one interval (5) was net-negative, underscoring the value of bypass/fan shut-off under weak gradients. Overall, the hybrid EAHE emerges as a footprint-efficient option for arid housing, provided operation is dynamically controlled. Future work will focus on controlling logic and soil–moisture interactions to maximize net performance.
  • A Comparative Study of Vegetation Strategies for Outdoor Thermal Comfort in High- and Low-Density Urban Areas
    Mohammed M. Gomaa, Jackline Nabil, Djihed Berkouk, Ayman Ragab
    Urban Science, 2025
    The urban heat island (UHI) significantly compromises outdoor thermal comfort and public health in hot climates. While urban vegetation is a recognized mitigation strategy, its performance variability across different urban fabrics remains a critical knowledge gap. This research quantitatively evaluates the microclimatic impact of vegetation strategies by comparing two districts with distinct urban morphologies: low-density and high-density. Using the Envi-met software, we simulated a reference case and four vegetation scenarios with constant 50% grass coverage and incrementally increasing tree percentages (0% to 75%). Thermal performance was assessed through key metrics, including air temperature (Ta), relative humidity (RH), mean radiant temperature (Tmrt), and Physiologically Equivalent Temperature (PET). The results reveal that vegetation’s effectiveness is directly correlated with urban density. The most comprehensive strategy (Scenario-D: 50% grass, 75% trees) reduced peak PET by up to 7.5 °C in the low-density El Khazzan, a reduction nearly three times greater than the 2.7 °C achieved in the high-density El Akkad. Similarly, this scenario achieved a maximum daytime Ta reduction of 0.92 K in El Khazzan, compared to only 0.4 K in the high-density district. The study also identifies a critical trade-off: high-density tree scenarios increased nighttime temperatures by up to 0.4 K due to disrupted airflow, whereas the grass-only scenario maintained thermal stability. These findings underscore that a one-size-fits-all approach to urban greening is insufficient. For practical implications, urban planners must abandon generic strategies and integrate a nuanced understanding of local morphology to maximize the thermal benefits of vegetation, particularly in hot, arid environments.
  • The Effects of Setback Geometry and Façade Design on the Thermal and Energy Performance of Multi-Story Residential Buildings in Hot Arid Climates
    Asmaa Omar, Mohammed M. Gomaa, Ayman Ragab
    Architecture, 2025
    This study investigates the influence of rear setback geometry and façade design parameters on microclimatic conditions, indoor thermal comfort, and energy performance in multi-story residential buildings in hot arid climates, addressing the growing need for climate-responsive design in regions with extreme temperatures and high solar radiation. Despite increasing interest in sustainable strategies, the combined effects of urban geometry and building envelope design remain underexplored in these environments. A coupled simulation framework was developed, integrating ENVI-met for outdoor microclimate modeling with Design Builder and EnergyPlus for dynamic building performance analysis. A total of 270 simulation scenarios were examined, combining three rear setback aspect ratios (1.5, 1.87, and 2.25), three window-to-wall ratios (10%, 20%, and 30%), three glazing types (single-, double-, and triple-pane), and two wall insulation states, using customized weather files derived from microclimate simulations. Global sensitivity analysis using rank regression and multivariate adaptive regression splines identified the glazing type as the most influential parameter (sensitivity index ≈ 0.99), especially for upper floors. At the same time, higher aspect ratios reduced peak Physiological Equivalent Temperature (PET) by up to 5 °C and decreased upper-floor cooling loads by 37%, albeit with a 9.3% increase in ground-floor cooling demand. Larger window-to-wall ratios lowered lighting energy consumption by up to 35% but had minimal impact on cooling loads, whereas wall insulation reduced annual cooling demand by up to 29,441 kWh. The results emphasize that integrating urban morphology with optimized façade components, particularly high-performance glazing and suitable aspect ratios, can significantly improve thermal comfort and reduce cooling energy consumption in hot arid residential contexts.
  • A Multi-Objective Optimization Method for Enhancing Outdoor Environmental Quality in University Courtyards in Hot Arid Climates
    Amr Sayed Hassan Abdallah, Randa Mohamed Ahmed Mahmoud, Ayman Ragab, Mohammed M. Gomaa
    Buildings, 2025
    Enhancing urban air quality and thermal comfort involves addressing multifaceted environmental and design challenges. Investigating the effects of urban morphological and building geometrical parameters on enhancing air quality and thermal comfort is a multifaceted problem, influenced by different parameters. This study aims to develop optimized design solutions for university buildings and courtyards to enhance outdoor thermal comfort and reduce CO2 concentration levels as an indicator of air quality. Consequently, the methodology involved a combination of field monitoring at two university faculties in Egypt and a computational parametric methodology using Rhino 3D+Grasshopper(V8) for enhancing thermal comfort, reducing CO2 concentration levels, and improving wind velocity. The in situ measurements revealed significantly high CO2 levels (780 ppm) and wind speed (3.8 m/s). The parametric methodology’s findings revealed a substantial reduction in the Universal Thermal Climate Index (UTCI) by 2.04 to 10.3 °C, a decrease in CO2 concentration by 57 to 197 ppm, and an increase in wind speed by 0.4 to 4.07 m/s. The most suitable vegetation ratio for trees within narrow courtyard designs was found to be 30%. This ratio effectively enhances thermal comfort (UTCI) and reduces CO2 concentrations, while also maintaining adequate airflow and avoiding excessive obstruction of natural ventilation within the courtyard. These findings provide valuable guidance for optimizing courtyard designs in hot arid climates.
  • Land Cover Transformations and Thermal Responses in Representative North African Oases from 2000 to 2023
    Tallal Abdel Karim Bouzir, Djihed Berkouk, Safieddine Ounis, Sami Melik, Noradila Rusli, et al.
    Urban Science, 2025
    Oases in arid regions are critical ecosystems, providing essential ecological, agricultural, and socio-economic functions. However, urbanization and climate change increasingly threaten their sustainability. This study examines land cover (LULC) and land surface temperature (LST) dynamics in four representative North African oases: Tolga (Algeria), Nefta (Tunisia), Ghadames (Libya), and Siwa (Egypt) over the period 2000–2023, using Landsat satellite imagery. A three-step analysis was employed: calculation of NDVI (Normalized Difference Vegetation Index), NDBI (Normalized Difference Built-up Index), and LST, followed by supervised land cover classification and statistical tests to examine the relationships between the studied variables. The results reveal substantial reductions in bare soil (e.g., 48.10% in Siwa) and notable urban expansion (e.g., 136.01% in Siwa and 48.46% in Ghadames). Vegetation exhibited varied trends, with a slight decline in Tolga (0.26%) and a significant increase in Siwa (+27.17%). LST trends strongly correlated with land cover changes, demonstrating increased temperatures in urbanized areas and moderated temperatures in vegetated zones. Notably, this study highlights that traditional urban designs integrated with dense palm groves significantly mitigate thermal stress, achieving lower LST compared to modern urban expansions characterized by sparse, heat-absorbing surfaces. In contrast, areas dominated by fragmented vegetation or seasonal crops exhibited reduced cooling capacity, underscoring the critical role of vegetation type, spatial arrangement, and urban morphology in regulating oasis microclimates. Preserving palm groves, which are increasingly vulnerable to heat-driven pests, diseases and the introduction of exotic species grown for profit, together with a revival of the traditional compact urban fabric that provides shade and has been empirically confirmed by other oasis studies to moderate the microclimate more effectively than recent low-density extensions, will maintain the crucial synergy between buildings and vegetation, enhance the cooling capacity of these settlements, and safeguard their tangible and intangible cultural heritage.
  • A Comparative Analysis of Advanced Glazing Technologies for Energy-Efficient Buildings in Jeddah City, Saudi Arabia
    Mohammed M. Gomaa, Amr Sayed Hassan Abdallah, Mohammed A. Aloshan, Ayman Ragab
    Buildings, 2025
    This study employs Design Builder software to evaluate advanced glazing technologies for enhancing the thermal performance of residential buildings in Jeddah, Saudi Arabia. Recognizing the energy inefficiencies caused by adopting Western architectural styles unsuited to local climatic conditions, and given that buildings consume 44% of national energy, we conducted a systematic parametric analysis to isolate the effects of key glazing parameters. The study examines six polycarbonate (PC) configurations and three critical comparative cases: (1) a selective double-glazed unit representing a new baseline glazing; (2) a low-U configuration to isolate thermal insulation effects; and (3) a low-SHGC configuration to evaluate solar heat gain mitigation independently. These controlled comparisons address a critical research gap by decoupling the traditionally confounded impacts of U-value and SHGC in hot climates. The simulations reveal that the 36 mm aerogel glazing (U = 0.9 W/m2·K, SHGC = 0.3) reduces cooling demand by 48.6% annually compared to single-pane glazing while maintaining indoor temperatures at 30.09 °C versus 38.43 °C at baseline. Notably, the findings demonstrate that 87% of these savings derive from SHGC reduction, with only 3.02 percentage points attributable to U-value improvements. The selective DGU benchmark delivers 85% of aerogel’s benefits at 40% lower cost, establishing it as a practical solution for most applications. These findings provide evidence-based guidance for Saudi Vision 2030’s sustainability goals, emphasizing that while aerogel glazing excels in extreme solar exposures, strategic SHGC optimization in conventional glazing can achieve the most energy savings in hot climates.
  • A Post-Occupancy Evaluation Framework for Enhancing Resident Satisfaction and Building Performance in Multi-Story Residential Developments in Saudi Arabia
    Saleh Baharetha, Mohammad A. Hassanain, Adel Alshibani, Djamel Ouis, Mohammed M. Gomaa, et al.
    Architecture, 2025
    This paper presents a systematic post-occupancy evaluation (POE) of a gated apartment building in Onaizah, Qassim, Saudi Arabia, focusing on resident satisfaction and building performance. Employing a mixed-methods approach, the research combines quantitative data from questionnaires and qualitative data from walkthrough observations and interviews to assess various performance aspects, including thermal comfort, visual comfort, acoustic performance, and safety. Results indicate that residents generally expressed satisfaction with thermal comfort, visual comfort, and indoor air quality. However, concerns were highlighted in areas such as safety and security, design adequacy, and construction support services. These findings reveal that while the building meets many occupant needs, there are critical areas requiring improvement. This study underscores the importance of incorporating POE as a valuable tool for assessing building performance and informing future design and management strategies in residential developments. Finally, this study’s methodology excelled in analyzing the quality and performance of residential building elements, which contributes to enriching the literature related to facilities management. It explains the research strategy followed to provide an organized and reliable framework that can be used to evaluate performance and quality in residential buildings.
  • The Influence of Multisensory Perception on Student Outdoor Comfort in University Campus Design
    Hichem Touhami, Djihed Berkouk, Tallal Abdel Karim Bouzir, Sara Khelil, Mohammed M. Gomaa
    Atmosphere, 2025
    The user’s experience is critical in spatial design, particularly in outdoor spaces like university campuses, where the physical environment significantly influences students’ relaxation and stress relief. This study investigates the combined impact of thermal, luminous, and auditory environments on students’ perceptions within recreational areas at Bordj Bou Arreridj University Campus. A mixed-method approach combined field surveys and on-site measurements across eleven locations within three distinct spatial configurations. The findings from this study indicate that the auditory environment had the most substantial influence on overall perceptions, surpassing luminous and thermal factors. The open courtyard (Area 1) was perceived as less comfortable due to excessive heat and noise exposure. The shaded zone (Area 2) was identified as the most vulnerable, experiencing significant thermal stress and noise disturbances. In contrast, the secluded patio (Area 3) achieved the highest comfort rating and was perceived as the most cheerful and suitable space. Correlation analysis revealed significant interrelationships between physical and perceptual dimensions, highlighting the critical role of factors such as wind velocity, sky view factor, and illuminance in shaping thermal, luminous, and acoustic perceptions. A fuzzy logic model was developed to predict user perceptions of comfort, suitability, and mood based on measured environmental parameters to address the complexity of multisensory interactions. This study highlights the importance of integrating multisensory evaluations into spatial design to optimize the quality of outdoor environments.
  • Post occupancy evaluation of architectural design studio facilities
    Mohamed Salah Ezz, Mohamed Ahmed F. Mahdy, Saleh Baharetha, Mohammad A. Hassanain, Mohammed M. Gomaa
    Frontiers in Built Environment, 2025
  • Quantifying the Impacts of Courtyard Vegetation on Thermal and Energy Performance of University Buildings in Hot Arid Regions
    Mohammed M. Gomaa, Esraa Othman, Abdelaziz Farouk Mohamed, Ayman Ragab
    Urban Science, 2024
  • Perceptual Differences in Urban Soundscape Assessment Using Protocol Proposed in Method a of the ISO/TS 12913–2: A Cross-Language Comparison between Arabic and French Attributes
    Djihed Berkouk, Tallal Abdel Karim Bouzir, Sara Khelil, Nader Azab, Mohamed Mansour Gomaa
    Urban Science, 2024
  • The Impact of Spatial Configuration on Perceived Accessibility of Urban Parks Based on Space Syntax and Users' Responses
    Mohammed M. Gomaa, Ubaid Ullah, Mehr Afroz, Zobia Zobia
    Civil Engineering and Architecture, 2024
  • Investigating the Impact of Various Vegetation Scenarios on Outdoor Thermal Comfort in Low-Density Residential Areas of Hot Arid Regions
    Mohammed M. Gomaa, Adel El Menshawy, Jackline Nabil, Ayman Ragab
    Sustainability Switzerland, 2024
  • Macro-Level Factors Shaping Residential Location Choices: Examining the Impacts of Density and Land-Use Mix
    Mohammed M. Gomaa
    Land, 2023
  • Energy, Thermal, and Economic Benefits of Aerogel Glazing Systems for Educational Buildings in Hot Arid Climates
    Abdelaziz Farouk Mohamed, Mohammed M. Gomaa, Amira Ahmed Amir, Ayman Ragab
    Sustainability Switzerland, 2023
  • Investigating the Thermal and Energy Performance of Advanced Glazing Systems in the Context of Hail City, KSA
    Mohamed Hssan Hassan Abdelhafez, Ali Abdulmohsen Aldersoni, Mohammad Mansour Gomaa, Emad Noaime, Mohammed Mashary Alnaim, et al.
    Buildings, 2023
  • Design and Experimental Studies on a Single Slope Solar Still for Water Desalination
    Saif Salim Saif Al-Mezeini, Mohd Asim Siddiqui, Mohammad Shariq, Talal M. Althagafi, Inas A. Ahmed, et al.
    Water Switzerland, 2023
  • Adaptation planning for sea level rise: a study of US coastal cities
    Xinyu Fu, Mohammed Gomaa, Yujun Deng, Zhong-Ren Peng
    Journal of Environmental Planning and Management, 2017