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In the Middle East and North Africa (MENA) region, studies focused on the relationship between urban planning practice and climatology are still lacking, despite the fact that the latter has nearly three decades of literature in the region and the former has much more. However, such an unfounded relationship that would consider urban sustainability measures is a serious challenge, especially considering the effects of climate change. The Greater Cairo Region (GCR) has recently witnessed numerous serious urban vehicular network re-development, leaving the city less green and in need of strategically re-thinking the plan regarding, and the role of, green infrastructure. Therefore, this study focuses on approaches to the optimization of the urban green infrastructure, in order to reduce solar irradiance in the city and, thus, its effects on the urban climatology. This is carried out by studying one of the East Cairo neighborhoods, named El-Nozha district, as a representative case of the most impacted neighborhoods. In an attempt to quantify these effects, using parametric simulation, the Air Temperature (Ta), Mean Radiant Temperature (Tmrt), Relative Humidity (RH), and Physiological Equivalent Temperature (PET) parameters were calculated before and after introducing urban trees, acting as green infrastructure types that mitigate climate change and the Urban Heat Island (UHI) effect. Our results indicate that an optimized percentage, spacing, location, and arrangement of urban tree canopies can reduce the irradiance flux at the ground surface, having positive implications in terms of mitigating the urban heat island effect.
Wesam M. Elbardisy; Mohamed A. Salheen; Mohammed Fahmy. Solar Irradiance Reduction Using Optimized Green Infrastructure in Arid Hot Regions: A Case Study in El-Nozha District, Cairo, Egypt. Sustainability 2021, 13, 9617 .
AMA StyleWesam M. Elbardisy, Mohamed A. Salheen, Mohammed Fahmy. Solar Irradiance Reduction Using Optimized Green Infrastructure in Arid Hot Regions: A Case Study in El-Nozha District, Cairo, Egypt. Sustainability. 2021; 13 (17):9617.
Chicago/Turabian StyleWesam M. Elbardisy; Mohamed A. Salheen; Mohammed Fahmy. 2021. "Solar Irradiance Reduction Using Optimized Green Infrastructure in Arid Hot Regions: A Case Study in El-Nozha District, Cairo, Egypt." Sustainability 13, no. 17: 9617.
In hot, arid regions on university campuses, students are more vulnerable to heat stresses than in street canyons in terms of function; however, the knowledge of the impact of built environments on thermal performance is still lacking. In two summer and winter days, the shading effect of the existing urban trees pattern in a university campus in Egypt was examined to correlate their Sky View Factor (SVF) with the thermal environment, meteorology, Physiological Equivalent Temperature (PET), and Universal Thermal Comfort Index (UTCI). The ENVI-met model was used in order to assess meteorological parameters, followed by SVF calculation in the Rayman program. Meteorological field measurements validated the simulation model and measured the Leaf Area Index (LAI) of two native urban trees to model the in-situ canopies foliage. In summer, the results showed a significant direct impact of the SVF on mean radiant temperature (Tmrt), PET, and UTCI; however, the excessive shading by trees on materials with a low albedo and low wind speed could lead to a slight increase in air temperature. Meanwhile, in the winter, SVF did not affect the microclimatic variables, PET, or UTCI. The resulting insight into the correlation between SVF and Tmrt emphasizes the importance of urban trees in modifying the microclimates of already-existing university plazas.
Randa Shata; Ayman Mahmoud; Mohammad Fahmy. Correlating the Sky View Factor with the Pedestrian Thermal Environment in a Hot Arid University Campus Plaza. Sustainability 2021, 13, 468 .
AMA StyleRanda Shata, Ayman Mahmoud, Mohammad Fahmy. Correlating the Sky View Factor with the Pedestrian Thermal Environment in a Hot Arid University Campus Plaza. Sustainability. 2021; 13 (2):468.
Chicago/Turabian StyleRanda Shata; Ayman Mahmoud; Mohammad Fahmy. 2021. "Correlating the Sky View Factor with the Pedestrian Thermal Environment in a Hot Arid University Campus Plaza." Sustainability 13, no. 2: 468.
Occupant thermal comfort in educational buildings is important for students as it support the educational process itself. The passive design of naturally ventilated buildings plays a crucial role in achieving occupant thermal comfort but the passive design itself might be of higher cost to convince the owner even with proofs from the pre and while design simulation outputs. In this paper, the as built of a 1000 students' educational building is simulated using Design Builder and compared with the same thermal zones of the as built but with passive cooling applications. Two wind catchers, shading devices, low e-glass windows, double skin façade, and double roof were applied as amelioration strategies. The status of student comfort was improved in terms of both Predicted Mean Vote and air temperature, compared with the base case of the building. It is concluded that shading the roofs and southern facade of the building envelope were the most efficient scenarios for the passively modified version of the building.
Mohammad Fahmy; Sherif A. Mahmoud; Ibrahim M. Olwy; Marwa Abdelalim. Comparison of Occupant Thermal Comfort with and without Passive Design for a Naturally Ventilated Educational Building: a case study in Cairo, Egypt. IOP Conference Series: Materials Science and Engineering 2020, 974, 012027 .
AMA StyleMohammad Fahmy, Sherif A. Mahmoud, Ibrahim M. Olwy, Marwa Abdelalim. Comparison of Occupant Thermal Comfort with and without Passive Design for a Naturally Ventilated Educational Building: a case study in Cairo, Egypt. IOP Conference Series: Materials Science and Engineering. 2020; 974 (1):012027.
Chicago/Turabian StyleMohammad Fahmy; Sherif A. Mahmoud; Ibrahim M. Olwy; Marwa Abdelalim. 2020. "Comparison of Occupant Thermal Comfort with and without Passive Design for a Naturally Ventilated Educational Building: a case study in Cairo, Egypt." IOP Conference Series: Materials Science and Engineering 974, no. 1: 012027.
Since the mid-1970s, urban development in Egypt has sprawled far from the distinguished compact arid built environment, as the court-yarded housing typologies that completed the vernacular picture of desert architecture have been discarded in the early 20th century. This has motivated urban microclimate research in Egypt. The main objective was initially to improve outdoor thermal comfort. Therefore, Egyptian research started with assessing different existing patterns for the sake of climate responsive and sustainable urban design practice characterized with low carbon, thermal comfort and energy efficiency in such a hot arid conditions. That is why the review workflow of this article has followed a design progress workflow that led to solving design complexities with regard to generating housing urban forms on a microclimate basis rather than an article regular review workflow in order to extract the research gaps and conclude insights. After discussing a general framework for generating housing sustainable design identified from the concluded gaps, the main conclusion is a vision and a call to integrate the Urban microclimate-Building passiveness-Renewables design dimensions, UBR, towards the evolution of a new era of energy efficient housing typologies and a 5th generation of Egyptian sustainable cities where the 1st generation of new Egyptian cities started 1970s.
Mohammad Fahmy; Sherif Mahmoud; Ibrahim Elwy; Hatem Mahmoud. A Review and Insights for Eleven Years of Urban Microclimate Research Towards a New Egyptian ERA of Low Carbon, Comfortable and Energy-Efficient Housing Typologies. Atmosphere 2020, 11, 236 .
AMA StyleMohammad Fahmy, Sherif Mahmoud, Ibrahim Elwy, Hatem Mahmoud. A Review and Insights for Eleven Years of Urban Microclimate Research Towards a New Egyptian ERA of Low Carbon, Comfortable and Energy-Efficient Housing Typologies. Atmosphere. 2020; 11 (3):236.
Chicago/Turabian StyleMohammad Fahmy; Sherif Mahmoud; Ibrahim Elwy; Hatem Mahmoud. 2020. "A Review and Insights for Eleven Years of Urban Microclimate Research Towards a New Egyptian ERA of Low Carbon, Comfortable and Energy-Efficient Housing Typologies." Atmosphere 11, no. 3: 236.
Buildings design at the time of climate change must enhance their energy performance and in turn to minimize the undesired impacts on our environment. In this work, a comparative simulation analysis has been conducted to an administration building in Cairo, Egypt, to assess its performance after the application of passive design features in comparison to its conventional construction. The proposed passive design features include courtyards, double walled envelope, shading devices, and cross ventilation whereas the base case include none. To do so, Design Builder simulations were made using the generated weather data for the site using Meteonorm. Results show the superiority of applying the passive design, which lead to 11 % reduction in the annual energy consumption.
S. Mahmoud; Mohammad Fahmy; M. Mahdy; Ibrahim Elwy; M. Abdelalim. Comparative energy performance simulation for passive and conventional design: A case study in Cairo, Egypt. Energy Reports 2020, 6, 699 -704.
AMA StyleS. Mahmoud, Mohammad Fahmy, M. Mahdy, Ibrahim Elwy, M. Abdelalim. Comparative energy performance simulation for passive and conventional design: A case study in Cairo, Egypt. Energy Reports. 2020; 6 ():699-704.
Chicago/Turabian StyleS. Mahmoud; Mohammad Fahmy; M. Mahdy; Ibrahim Elwy; M. Abdelalim. 2020. "Comparative energy performance simulation for passive and conventional design: A case study in Cairo, Egypt." Energy Reports 6, no. : 699-704.
The trend of urban and suburban developments is concluding that more than 70% of the world population will be living in urban areas by mid-21st century within dis-comfortable built environment. In Egypt, a concern about climate change resilient communities is having more listeners after Paris climate agreement in 2015. Therefore, assessing present and future outdoor microclimatic effects on the indoor environmental quality and energy consumption in turn is crucial to build the capacities for mitigation and adaptation strategies. In this research work, the coupled outdoor–indoor simulation methodology is applied using ENVI-met and DesignBuilder to let buildings respond to the street canyon conditions since indoor simulation packages does not consider urban details. Such mutual relation is explored in a site case in Borg El-Arab, Alexandria, Egypt, in which urban canopy green coverage (trees, green walls and roofs) have been applied. Comparing results of indoor thermal comfort for the examined site buildings in present until end of century (2020, 2050 and 2080) with and without the urban canopy green coverage; show that indicators and adaptation strategies can be developed for climate change scenarios.
Mohammad Fahmy; M. Mahdy; S. Mahmoud; M. Abdelalim; S. Ezzeldin; Shady Attia. Influence of urban canopy green coverage and future climate change scenarios on energy consumption of new sub-urban residential developments using coupled simulation techniques: A case study in Alexandria, Egypt. Energy Reports 2020, 6, 638 -645.
AMA StyleMohammad Fahmy, M. Mahdy, S. Mahmoud, M. Abdelalim, S. Ezzeldin, Shady Attia. Influence of urban canopy green coverage and future climate change scenarios on energy consumption of new sub-urban residential developments using coupled simulation techniques: A case study in Alexandria, Egypt. Energy Reports. 2020; 6 ():638-645.
Chicago/Turabian StyleMohammad Fahmy; M. Mahdy; S. Mahmoud; M. Abdelalim; S. Ezzeldin; Shady Attia. 2020. "Influence of urban canopy green coverage and future climate change scenarios on energy consumption of new sub-urban residential developments using coupled simulation techniques: A case study in Alexandria, Egypt." Energy Reports 6, no. : 638-645.
Passively designed buildings are the tradition of historic areas of metropolitan Cairo. According to UNESCO, Cairo was inscribed on the World Heritage in 1979 under the title of “Islamic Cairo”, recognizing its unquestionable historical, archaeological and urbanistic importance. Among Islamic Cairo Heritage buildings, Wekalet El-Ghouri is located in Al-Azhar area, was built in 1504 by the Memluk Sultan Qunsuwah El Ghouri. This research paper aims to investigate such historical passive design of Wekalet El-Ghouri in terms of energy efficiency simulations using eQuest, whereas sustainability assessment used a developed generic rating criterion for existing buildings. The 40 cm brick walls Wekala building was examined in comparison to its images; 12 cm, and 25 cm envelopes and simulated to compare its green rating calculated by the generic optimized rating criterion. The original passive case of the building showed the highest earned credit points by the generic criterion.
Mohammad Fahmy; Sherif Mahmoud; Marwa Abdelalim; Mohammad Mahdy. Generic Energy Efficiency Assessment for heritage buildings; Wekalat El-Ghouri as a case study, Cairo, Egypt. Energy Procedia 2019, 156, 166 -171.
AMA StyleMohammad Fahmy, Sherif Mahmoud, Marwa Abdelalim, Mohammad Mahdy. Generic Energy Efficiency Assessment for heritage buildings; Wekalat El-Ghouri as a case study, Cairo, Egypt. Energy Procedia. 2019; 156 ():166-171.
Chicago/Turabian StyleMohammad Fahmy; Sherif Mahmoud; Marwa Abdelalim; Mohammad Mahdy. 2019. "Generic Energy Efficiency Assessment for heritage buildings; Wekalat El-Ghouri as a case study, Cairo, Egypt." Energy Procedia 156, no. : 166-171.
Urban climatology is a complex field owed to the intersecting parameters. In city planning, neighborhood fabric and vegetation plays a great role in modifying arid microclimates. This work presents an approach to enable urban designers to find the optimum land use parameters to achieve pedestrian thermal comfort. In this study, a model was developed based on ENVI-met simulations of two urban and suburban sites in Cairo, Egypt. Initial design parameters were; compactness degree, grass coverage, leaf area density, trees ground coverage, and asphalt and buildings areas. After regression analysis, the step-wise algorithm succeeded in creating the best fit of 94% R2 and 92% adjusted R2. The suggested Urban Design Comfort Model (UDCM) was examined using MATLAB to find the optimum design parameters. Optimum values were applied to generate primitive urban configurations using Grasshopper. The primitives were simulated again in ENVI-met to validate UDCM. The resulted value of Physiological Equivalent Temperature, PET at peak time was reduced from the initial result of ENVI-met (42.3 °C) in both sites to reach (38.7 °C) then (36.8 °C) after refinement with extra foliage. This approach, as a tool for urban designers, not only facilitates and speeds up urban form design process on a passive basis, but also provides deep insights on the development of UDCM considering all different city transects rather than two.
Mohammad Fahmy; Hisham Kamel; Hany Mokhtar; Ibrahim Elwy; Ahmed Gimiee; Yasser Ibrahim; Marwa Abdelalim. On the Development and Optimization of an Urban Design Comfort Model (UDCM) on a Passive Solar Basis at Mid-Latitude Sites. Climate 2018, 7, 1 .
AMA StyleMohammad Fahmy, Hisham Kamel, Hany Mokhtar, Ibrahim Elwy, Ahmed Gimiee, Yasser Ibrahim, Marwa Abdelalim. On the Development and Optimization of an Urban Design Comfort Model (UDCM) on a Passive Solar Basis at Mid-Latitude Sites. Climate. 2018; 7 (1):1.
Chicago/Turabian StyleMohammad Fahmy; Hisham Kamel; Hany Mokhtar; Ibrahim Elwy; Ahmed Gimiee; Yasser Ibrahim; Marwa Abdelalim. 2018. "On the Development and Optimization of an Urban Design Comfort Model (UDCM) on a Passive Solar Basis at Mid-Latitude Sites." Climate 7, no. 1: 1.
Mohammad Fahmy; Mohamed M. Mahdy; Hosam Rizk; Marwa F. Abdelaleem. Estimating the future energy efficiency and CO2 emissions of passive country housing applying domestic biogas reactor: A case study in Egypt. Ain Shams Engineering Journal 2018, 9, 2599 -2607.
AMA StyleMohammad Fahmy, Mohamed M. Mahdy, Hosam Rizk, Marwa F. Abdelaleem. Estimating the future energy efficiency and CO2 emissions of passive country housing applying domestic biogas reactor: A case study in Egypt. Ain Shams Engineering Journal. 2018; 9 (4):2599-2607.
Chicago/Turabian StyleMohammad Fahmy; Mohamed M. Mahdy; Hosam Rizk; Marwa F. Abdelaleem. 2018. "Estimating the future energy efficiency and CO2 emissions of passive country housing applying domestic biogas reactor: A case study in Egypt." Ain Shams Engineering Journal 9, no. 4: 2599-2607.
Outdoor microclimate simulations as part of sustainable urban development process have become of a great significance to reduce energy consumption, CO2 emissions, urban heat island, and urban sprawl. Accordingly, the development of microclimate simulation tools is crucial to catch up with the cutting-edge technologies and generate optimized urban forms according to their environmental performance. In this paper, a hybrid parametric workflow of Ladybug Tools is applied to validate their generic outdoor thermal comfort, calculated in Physiological Equivalent Temperature (PET), against measured meteorological data using HOBO-U30 weather station, and ENVI-met simulations for a case study in Cairo, Egypt. The comparison of four meteorological parameters have shown minor error percentages with nearly 90% precise PET results. The study have demonstrated that Ladybug Tools have no less significance than other fully-integrated microclimate simulation engines, particularly for consuming less simulation time, and their appropriateness for the iterated design processes and simulations.
Ibrahim Elwy; Yasser Ibrahim; Mohammad Fahmy; Mohamed Mahdy. Outdoor microclimatic validation for hybrid simulation workflow in hot arid climates against ENVI-met and field measurements. Energy Procedia 2018, 153, 29 -34.
AMA StyleIbrahim Elwy, Yasser Ibrahim, Mohammad Fahmy, Mohamed Mahdy. Outdoor microclimatic validation for hybrid simulation workflow in hot arid climates against ENVI-met and field measurements. Energy Procedia. 2018; 153 ():29-34.
Chicago/Turabian StyleIbrahim Elwy; Yasser Ibrahim; Mohammad Fahmy; Mohamed Mahdy. 2018. "Outdoor microclimatic validation for hybrid simulation workflow in hot arid climates against ENVI-met and field measurements." Energy Procedia 153, no. : 29-34.
Under climate change impacts, the world is becoming one village. This motivated the application of sustainability rating systems of buildings away from their origins which is hindered by the different attributes and weights. Hence, this study developed a global sustainability rating tool for existing buildings, considering the regional variations through proposing sustainability assessment attributes and determining their weights utilizing fuzzy logic. Data was collected through Canadian and Egyptian experts’questionnaires to stand for the impact of the regional variations on the weight values. Fuzzy topsis was implemented to overcome the uncertainties inherent when considering opinions of individuals. Consequently, the assessment model and the ranking scheme were developed. In addition to questionnaires, the model was implemented using BIM modeling and energy simulations for two cases in the Canadian and Egyptian environments. The results showed that weights vary from country to another, however, energy criteria deemed to have nearly the same weight in both countries. Also, the results showed the ability of the proposed model to address the regional variations through the developed multi-level weight model. The model was validated by applying sensitivity analysis. The developed sustainability assessment model is a step towards a globally working sustainability rating tool that can address regional variations.
Sherif Mahmoud; Tarek Zayed; Mohammad Fahmy. Development of sustainability assessment tool for existing buildings. Sustainable Cities and Society 2018, 44, 99 -119.
AMA StyleSherif Mahmoud, Tarek Zayed, Mohammad Fahmy. Development of sustainability assessment tool for existing buildings. Sustainable Cities and Society. 2018; 44 ():99-119.
Chicago/Turabian StyleSherif Mahmoud; Tarek Zayed; Mohammad Fahmy. 2018. "Development of sustainability assessment tool for existing buildings." Sustainable Cities and Society 44, no. : 99-119.
Neighborhood has always been of significant interest to built environment stockholders as a basic planning unit. However, any discussion in these concerns, without drawing attention to sustainable microclimate approaches, would still in a mess at a time of increasing population and climate change. Emergence of the sustainable development concept at the mid-20th century and its emphasis led to increasing crucial role that the urban green infrastructure along with reflective materials can play in mitigating neighborhood microclimate’s symptoms of climate change. Considering the lack of studies for urban heat island (UHI) in hot arid regions, particularly in Egypt and the limited number of studies concerning the numerical simulation of all mitigation strategies incorporated, this research studies the mitigation of UHI phenomenon in a case study in Cairo in present and future (2020, 2050 and 2080) through applying the criteria of tree lines, green roofs, high albedo pavements and shading structures within the neighborhood sustainability assessment tool (Leadership in Energy and Environmental Design for Neighborhood; LEED-ND). The microclimatic numerical CFD simulations of ENVI-met 4.0 was used following the measurement of LAI and Albedo of selected Egyptian trees to assess UHI through air and radiant temperature differences before and after applying mitigation strategies. Results demonstrate a considerable ability to acclimatize the microclimate in terms of better conditions in present and future.
Mohammad Fahmy; Yasser Ibrahim; Ehab Hanafi; Mohamed Barakat. Would LEED-UHI greenery and high albedo strategies mitigate climate change at neighborhood scale in Cairo, Egypt? Building Simulation 2018, 11, 1273 -1288.
AMA StyleMohammad Fahmy, Yasser Ibrahim, Ehab Hanafi, Mohamed Barakat. Would LEED-UHI greenery and high albedo strategies mitigate climate change at neighborhood scale in Cairo, Egypt? Building Simulation. 2018; 11 (6):1273-1288.
Chicago/Turabian StyleMohammad Fahmy; Yasser Ibrahim; Ehab Hanafi; Mohamed Barakat. 2018. "Would LEED-UHI greenery and high albedo strategies mitigate climate change at neighborhood scale in Cairo, Egypt?" Building Simulation 11, no. 6: 1273-1288.
Mohammad Fahmy; Hany El-Hady; Mohamed Mahdy; Marwa F. Abdelalim. On the green adaptation of urban developments in Egypt; predicting community future energy efficiency using coupled outdoor-indoor simulations. Energy and Buildings 2017, 153, 241 -261.
AMA StyleMohammad Fahmy, Hany El-Hady, Mohamed Mahdy, Marwa F. Abdelalim. On the green adaptation of urban developments in Egypt; predicting community future energy efficiency using coupled outdoor-indoor simulations. Energy and Buildings. 2017; 153 ():241-261.
Chicago/Turabian StyleMohammad Fahmy; Hany El-Hady; Mohamed Mahdy; Marwa F. Abdelalim. 2017. "On the green adaptation of urban developments in Egypt; predicting community future energy efficiency using coupled outdoor-indoor simulations." Energy and Buildings 153, no. : 241-261.
The effect of building envelope (walls and fenestration) on the thermal comfort of the residential buildings in Egypt is the main concern for the authors' recent research work. The “the Egyptian residential energy code for improving energy efficiency” was taken as a guide to get the optimal energy performance and indoor thermal comfort. This paper presents the results of testing all the different elements of the building envelope together, to evaluate that the use of what seems to be the best solution for each part together will results in a better overall performance. To attain that, two HVAC case study buildings were simulated in three different Egyptian climatic zones, using the current climatic conditions and three other morphed climate change scenarios (2020, 2050 and 2080). Achieving the required rates for thermal comfort, as well as acquiring long term financial gains, both were the basic elements of evaluation. The results provide what seems to be a functionally and financially successful combination to fulfil the evaluation elements.
Mohamed M. Mahdy; Mohammad Fahmy; Mohamed Barakat; Marwa F. Abdelalim. Assessing the thermal performance of envelope parts under climate change scenarios : Residential case studies in Egypt. 2017 2nd International Conference Sustainable and Renewable Energy Engineering (ICSREE) 2017, 42 -48.
AMA StyleMohamed M. Mahdy, Mohammad Fahmy, Mohamed Barakat, Marwa F. Abdelalim. Assessing the thermal performance of envelope parts under climate change scenarios : Residential case studies in Egypt. 2017 2nd International Conference Sustainable and Renewable Energy Engineering (ICSREE). 2017; ():42-48.
Chicago/Turabian StyleMohamed M. Mahdy; Mohammad Fahmy; Mohamed Barakat; Marwa F. Abdelalim. 2017. "Assessing the thermal performance of envelope parts under climate change scenarios : Residential case studies in Egypt." 2017 2nd International Conference Sustainable and Renewable Energy Engineering (ICSREE) , no. : 42-48.
Mohammad Fahmy; Mohamed M. Mahdy; Marwa F. Abdelalim. A Proposed Methodology for Planning a Sustainable Village at Mid Sinai Arid Climatic Zone, Egypt. International Journal of Environmental Science and Development 2017, 8, 804 -808.
AMA StyleMohammad Fahmy, Mohamed M. Mahdy, Marwa F. Abdelalim. A Proposed Methodology for Planning a Sustainable Village at Mid Sinai Arid Climatic Zone, Egypt. International Journal of Environmental Science and Development. 2017; 8 (12):804-808.
Chicago/Turabian StyleMohammad Fahmy; Mohamed M. Mahdy; Marwa F. Abdelalim. 2017. "A Proposed Methodology for Planning a Sustainable Village at Mid Sinai Arid Climatic Zone, Egypt." International Journal of Environmental Science and Development 8, no. 12: 804-808.
Hassan Radhi; Stephen Sharples; Hanan Taleb; Mohammad Fahmy. Will cool roofs improve the thermal performance of our built environment? A study assessing roof systems in Bahrain. Energy and Buildings 2017, 135, 324 -337.
AMA StyleHassan Radhi, Stephen Sharples, Hanan Taleb, Mohammad Fahmy. Will cool roofs improve the thermal performance of our built environment? A study assessing roof systems in Bahrain. Energy and Buildings. 2017; 135 ():324-337.
Chicago/Turabian StyleHassan Radhi; Stephen Sharples; Hanan Taleb; Mohammad Fahmy. 2017. "Will cool roofs improve the thermal performance of our built environment? A study assessing roof systems in Bahrain." Energy and Buildings 135, no. : 324-337.
In recent years, the accelerated rate of urban growth in hot climate cities highlights the critical necessity of creating more outdoor spaces for different activities of citizens from leisure or recreation. Thermal sensation of users have not been fully explored in outdoor environments of hot and humid climate specially in early stages of design which affects thermal comfort in negative ways. This fact elucidates the need for considering human thermal comfort in outdoor spaces design with such climates. Recently, Egyptian climatic quality of space has received attention among climatologist and urban designers. In most cases, the climatic sensitive landscape design is absent on planning and site design levels. This paper discusses the climatic sensitive landscape design in public schools courtyards using ENVI-met simulation tool. A case study: EL-Sherouk school is selected and numerically simulated in elevated temperature during school time. The simulation results revealed high thermal discomfort after setting boundary conditions for the climate and the possible vegetation patterns. Finally, the paper concludes that specific patterns and types of trees among other landscape elements strongly ameliorate the microclimate within such schools courtyard size. They significantly attenuate the direct radiation modify the wind speed and direction; and fairly reduce temperature and change humidity. Design implications were proposed for a better microclimate in school courtyards.
Wesam M. El-Bardisy; Mohammad Fahmy; Germeen F. El-Gohary. Climatic Sensitive Landscape Design: Towards a Better Microclimate through Plantation in Public Schools, Cairo, Egypt. Procedia - Social and Behavioral Sciences 2016, 216, 206 -216.
AMA StyleWesam M. El-Bardisy, Mohammad Fahmy, Germeen F. El-Gohary. Climatic Sensitive Landscape Design: Towards a Better Microclimate through Plantation in Public Schools, Cairo, Egypt. Procedia - Social and Behavioral Sciences. 2016; 216 ():206-216.
Chicago/Turabian StyleWesam M. El-Bardisy; Mohammad Fahmy; Germeen F. El-Gohary. 2016. "Climatic Sensitive Landscape Design: Towards a Better Microclimate through Plantation in Public Schools, Cairo, Egypt." Procedia - Social and Behavioral Sciences 216, no. : 206-216.
Mohammad Fahmy; Mohamed M. Mahdy; Marialena Nikolopoulou. Prediction of future energy consumption reduction using GRC envelope optimization for residential buildings in Egypt. Energy and Buildings 2014, 70, 186 -193.
AMA StyleMohammad Fahmy, Mohamed M. Mahdy, Marialena Nikolopoulou. Prediction of future energy consumption reduction using GRC envelope optimization for residential buildings in Egypt. Energy and Buildings. 2014; 70 ():186-193.
Chicago/Turabian StyleMohammad Fahmy; Mohamed M. Mahdy; Marialena Nikolopoulou. 2014. "Prediction of future energy consumption reduction using GRC envelope optimization for residential buildings in Egypt." Energy and Buildings 70, no. : 186-193.
In order to understand the relation between urban neigbourhood design and its effects onmicroclimate, two experimental software cycles have been applied to a newly designed urbansite in Cairo. These cycles were applied for outdoor -indoor microclimate meteorologygeneration; also a 3D web based modelling method was used to increase the awareness in theEgyptian research society about the importance and benefits of climate based ur ban design.The first cycle was shown by visualizing meteorological output data. The concluded thematicmaps were then plotted on the 3D models in the second cycle. Results in terms of 3Dmeteorological mapped perspectives of the selected site show a stron g relation betweenoutdoor and indoor conditions for architects and urban planners who may not normally dealwith the many interdisciplinary field of urban climate. However, these results show thatclimate based modelling using CAAD can become an informati ve process specifically tosupport sustainable design and climate change awareness. It also proves the effectiveness ofadopting passive design options such as green roads in urban neighborhood design.
Amr Elwan; Mohammad Fahmy; Chengzhi Peng. Thematic visualization of built environment using microclimatic coupled mapping methodology to support urban neigbourhood design. The International Conference on Civil and Architecture Engineering 2012, 9, 1 -11.
AMA StyleAmr Elwan, Mohammad Fahmy, Chengzhi Peng. Thematic visualization of built environment using microclimatic coupled mapping methodology to support urban neigbourhood design. The International Conference on Civil and Architecture Engineering. 2012; 9 (9):1-11.
Chicago/Turabian StyleAmr Elwan; Mohammad Fahmy; Chengzhi Peng. 2012. "Thematic visualization of built environment using microclimatic coupled mapping methodology to support urban neigbourhood design." The International Conference on Civil and Architecture Engineering 9, no. 9: 1-11.
Mohammad Fahmy; Abigail Hathway; Laurence Pattacini; Amr Elwan. Environmental Thermal Impact Assessment of Regenerated Urban Form: A Case Study in Sheffield. Proceedings of the World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden 2011, 1 .
AMA StyleMohammad Fahmy, Abigail Hathway, Laurence Pattacini, Amr Elwan. Environmental Thermal Impact Assessment of Regenerated Urban Form: A Case Study in Sheffield. Proceedings of the World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden. 2011; ():1.
Chicago/Turabian StyleMohammad Fahmy; Abigail Hathway; Laurence Pattacini; Amr Elwan. 2011. "Environmental Thermal Impact Assessment of Regenerated Urban Form: A Case Study in Sheffield." Proceedings of the World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden , no. : 1.