A building's facade has significant impact on energy consumption. This paper investigates a speci... more A building's facade has significant impact on energy consumption. This paper investigates a specific facade configuration based on origami: kaleidocycle rings that can be morphed to enhance daylight uniformity and reduce total energy consumed for heating and cooling. This paper utilizes simulation techniques for identifying the most efficient daylight and thermal performance by incorporating parametric optimization using Grasshopper and Diva-for-Rhino. Analysis was conducted using the Daylight Dynamic Performance Metrics (DDPMs) specifically Spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE) based on the new IES approved daylight metrics. The simulation was carried out for a south-oriented façade of an office room in Aswan, Egypt, through two phases both used genetic algorithm to drive kaleidocycle parameters. The first phase simulated daylighting for façade optimization which influenced the second phase that run to reach the balance point between daylight and thermal performance. Results demonstrate that kaleidocycle rings of 26 cm size and 64 rotation angle exceed the LEED V4 daylighting requirements and achieve a remarkable energy saving of 23% in comparison to non-optimized configuration.
Generative design systems have contributed in liberating the limits of design exploration, allowi... more Generative design systems have contributed in liberating the limits of design exploration, allowing designers to explore various design solutions. In this paper, we used one-dimensional cellular automata (CA) to generate an optimized solar screen in a south oriented classroom for efficent daylighting performance. We used Grasshopper for the modeling process, and Diva-for-Rhino, which interfaces with Radiance, to evaluate daylighting performance based on the IES approved method. CA rule number 210 was specifically employed to develop the necessary parameters for form generation where 847 different cases were examined. Results of this research demonstrated the potential of CA in achieving the intended visual aspects and daylighting requirements.
Fathy, F., Mansour, Y., Sabry, H., Abdelmohsen, S. and Wagdy, A. (2015), Cellular Automata for Efficient Daylighting Performance: Optimized Façade Treatment, in proceedings of BS2015: The 14th Conference of the International Building Performance Simulation Association (IBPSA), Hyderabad, India, pp. 2705-2711.
Daylight can reduce the need of artificial lighting only if the architecture design allows it to ... more Daylight can reduce the need of artificial lighting only if the architecture design allows it to happen with right quantity, but the problem is that architects use the simulation software at the end of design process. In order to get the real benefits of simulation process, the simulation results should be used as the main driven tool for the design process. This process could not be done just using one type of software, it is a complex workflow which starts from creating a 3D dynamic model that can be modified without regenerating the 3D model each time, followed by connecting it with validated daylight simulation tool to ensure the correct analysis results. These results are evaluated to give us a numerical and visual feedback after being processed by optimization algorithm which automatically adjusts different variables in order to get better simulation results which eventually will prove that we are going towards more optimized solution. The author proposes a new tool which will...
Facade design has significant impact on daylight. This paper presents a facade based on origami: ... more Facade design has significant impact on daylight. This paper presents a facade based on origami: kaleidocycle rings that can be morphed enhancing daylight performance in residential spaces, which complies with both LEED V4 and Daylight availability. Daylighting analysis was integrated using Grasshopper, Diva and Genetic optimization for a south-oriented living room facade in Cairo, Egypt, through two phases. First phase dealt with base cases of specific typology. Second phase was conducted using parametric optimization process. Results demonstrate that Kaleidocycle rings of 30 cm size and 64 rotation’s angle reached results that exceed LEED v4 requirements while passing Daylight availability standards.
This paper reports on a research that utilized simulation techniques for identifying the most eff... more This paper reports on a research that utilized simulation techniques for identifying the most efficient hospital patient room designs and their associated window-to-wall ratios. Simulation of the energy consumption and daylighting performance of common patient room designs were conducted using a range of Window-to-Wall Ratios (WWRs). The paper focuses on arriving at solutions that balance between the reduction of energy consumption and the achievement of proper daylight distribution in the desert climate of Cairo, Egypt. Simulations were conducted using the Diva-for-Rhino, a plug-in for Rhinoceros modelling software to interface with the Energy Plus, Radiance and Daysim software. Results demonstrated that solar penetration is a critical concern affecting patient room design and window configuration in desert locations. Use of the outboard bathroom patient room design was found to be the least efficient among the tested alternatives. Although it has a smaller external wall size, it f...
Patient rooms represent the largest component of hospital buildings. A growing body of research i... more Patient rooms represent the largest component of hospital buildings. A growing body of research is addressing the formation of patient room layouts. However, research work addressing these parameters in desert environments is almost nonexistent. In this research, three common patient room layouts were studied. The aim was to investigate the influence of room shape on providing sufficient and comfortable daylighting. This paper reports on a research that utilized simulation techniques for identifying the most effective patient room configuration and its associated Window-to-Wall Ratios (WWRs). The paper focuses on arriving at solutions that achieve a balance between the achievement of proper daylight distribution and visual comfort. The research addresses these factors for three commonly used patient room layouts oriented towards the south orientation in the desert climate of Cairo, Egypt. Parametric simulation runs were conducted using Grasshopper and Diva-for- Rhino, a plug-in for ...
Dynamic solar screens can perform more efficiently
according to the environmental changes. This p... more Dynamic solar screens can perform more efficiently according to the environmental changes. This paper presents a current development of an in-progress research that explores an origami-based facade design to control daylight uniformity. The simulation was carried out for a south oriented façade of an office room in Aswan, Egypt, through two phases. The previous optimized results represent the static base case, which were be compared to the proposed dynamic model. The first phase simulated kaleidocycle screen at 21-March, 21-June, 21- September and 21-December taken of working day hours [8AM – 6PM]. The Second phase used comparative analysis of parametric simulation results for the same dates. Results demonstrate that dynamic solar screens achieved a better daylighting performance in comparison to optimized static base case in the winter season.
A building's facade has significant impact on energy consumption. This paper investigates a speci... more A building's facade has significant impact on energy consumption. This paper investigates a specific facade configuration based on origami: kaleidocycle rings that can be morphed to enhance daylight uniformity and reduce total energy consumed for heating and cooling. This paper utilizes simulation techniques for identifying the most efficient daylight and thermal performance by incorporating parametric optimization using Grasshopper and Diva-for-Rhino. Analysis was conducted using the Daylight Dynamic Performance Metrics (DDPMs) specifically Spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE) based on the new IES approved daylight metrics. The simulation was carried out for a south-oriented façade of an office room in Aswan, Egypt, through two phases both used genetic algorithm to drive kaleidocycle parameters. The first phase simulated daylighting for façade optimization which influenced the second phase that run to reach the balance point between daylight and thermal performance. Results demonstrate that kaleidocycle rings of 26 cm size and 64 rotation angle exceed the LEED V4 daylighting requirements and achieve a remarkable energy saving of 23% in comparison to non-optimized configuration.
Generative design systems have contributed in liberating the limits of design exploration, allowi... more Generative design systems have contributed in liberating the limits of design exploration, allowing designers to explore various design solutions. In this paper, we used one-dimensional cellular automata (CA) to generate an optimized solar screen in a south oriented classroom for efficent daylighting performance. We used Grasshopper for the modeling process, and Diva-for-Rhino, which interfaces with Radiance, to evaluate daylighting performance based on the IES approved method. CA rule number 210 was specifically employed to develop the necessary parameters for form generation where 847 different cases were examined. Results of this research demonstrated the potential of CA in achieving the intended visual aspects and daylighting requirements.
Fathy, F., Mansour, Y., Sabry, H., Abdelmohsen, S. and Wagdy, A. (2015), Cellular Automata for Efficient Daylighting Performance: Optimized Façade Treatment, in proceedings of BS2015: The 14th Conference of the International Building Performance Simulation Association (IBPSA), Hyderabad, India, pp. 2705-2711.
Daylight can reduce the need of artificial lighting only if the architecture design allows it to ... more Daylight can reduce the need of artificial lighting only if the architecture design allows it to happen with right quantity, but the problem is that architects use the simulation software at the end of design process. In order to get the real benefits of simulation process, the simulation results should be used as the main driven tool for the design process. This process could not be done just using one type of software, it is a complex workflow which starts from creating a 3D dynamic model that can be modified without regenerating the 3D model each time, followed by connecting it with validated daylight simulation tool to ensure the correct analysis results. These results are evaluated to give us a numerical and visual feedback after being processed by optimization algorithm which automatically adjusts different variables in order to get better simulation results which eventually will prove that we are going towards more optimized solution. The author proposes a new tool which will...
Facade design has significant impact on daylight. This paper presents a facade based on origami: ... more Facade design has significant impact on daylight. This paper presents a facade based on origami: kaleidocycle rings that can be morphed enhancing daylight performance in residential spaces, which complies with both LEED V4 and Daylight availability. Daylighting analysis was integrated using Grasshopper, Diva and Genetic optimization for a south-oriented living room facade in Cairo, Egypt, through two phases. First phase dealt with base cases of specific typology. Second phase was conducted using parametric optimization process. Results demonstrate that Kaleidocycle rings of 30 cm size and 64 rotation’s angle reached results that exceed LEED v4 requirements while passing Daylight availability standards.
This paper reports on a research that utilized simulation techniques for identifying the most eff... more This paper reports on a research that utilized simulation techniques for identifying the most efficient hospital patient room designs and their associated window-to-wall ratios. Simulation of the energy consumption and daylighting performance of common patient room designs were conducted using a range of Window-to-Wall Ratios (WWRs). The paper focuses on arriving at solutions that balance between the reduction of energy consumption and the achievement of proper daylight distribution in the desert climate of Cairo, Egypt. Simulations were conducted using the Diva-for-Rhino, a plug-in for Rhinoceros modelling software to interface with the Energy Plus, Radiance and Daysim software. Results demonstrated that solar penetration is a critical concern affecting patient room design and window configuration in desert locations. Use of the outboard bathroom patient room design was found to be the least efficient among the tested alternatives. Although it has a smaller external wall size, it f...
Patient rooms represent the largest component of hospital buildings. A growing body of research i... more Patient rooms represent the largest component of hospital buildings. A growing body of research is addressing the formation of patient room layouts. However, research work addressing these parameters in desert environments is almost nonexistent. In this research, three common patient room layouts were studied. The aim was to investigate the influence of room shape on providing sufficient and comfortable daylighting. This paper reports on a research that utilized simulation techniques for identifying the most effective patient room configuration and its associated Window-to-Wall Ratios (WWRs). The paper focuses on arriving at solutions that achieve a balance between the achievement of proper daylight distribution and visual comfort. The research addresses these factors for three commonly used patient room layouts oriented towards the south orientation in the desert climate of Cairo, Egypt. Parametric simulation runs were conducted using Grasshopper and Diva-for- Rhino, a plug-in for ...
Dynamic solar screens can perform more efficiently
according to the environmental changes. This p... more Dynamic solar screens can perform more efficiently according to the environmental changes. This paper presents a current development of an in-progress research that explores an origami-based facade design to control daylight uniformity. The simulation was carried out for a south oriented façade of an office room in Aswan, Egypt, through two phases. The previous optimized results represent the static base case, which were be compared to the proposed dynamic model. The first phase simulated kaleidocycle screen at 21-March, 21-June, 21- September and 21-December taken of working day hours [8AM – 6PM]. The Second phase used comparative analysis of parametric simulation results for the same dates. Results demonstrate that dynamic solar screens achieved a better daylighting performance in comparison to optimized static base case in the winter season.
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Papers by Ayman Wagdy
Fathy, F., Mansour, Y., Sabry, H., Abdelmohsen, S. and Wagdy, A. (2015), Cellular Automata for Efficient Daylighting Performance: Optimized Façade Treatment, in proceedings of BS2015: The 14th Conference of the International Building Performance Simulation Association (IBPSA), Hyderabad, India, pp. 2705-2711.
according to the environmental changes. This paper
presents a current development of an in-progress
research that explores an origami-based facade design
to control daylight uniformity. The simulation was
carried out for a south oriented façade of an office
room in Aswan, Egypt, through two phases. The
previous optimized results represent the static base
case, which were be compared to the proposed
dynamic model. The first phase simulated
kaleidocycle screen at 21-March, 21-June, 21-
September and 21-December taken of working day
hours [8AM – 6PM]. The Second phase used
comparative analysis of parametric simulation results
for the same dates. Results demonstrate that dynamic
solar screens achieved a better daylighting
performance in comparison to optimized static base
case in the winter season.
Fathy, F., Mansour, Y., Sabry, H., Abdelmohsen, S. and Wagdy, A. (2015), Cellular Automata for Efficient Daylighting Performance: Optimized Façade Treatment, in proceedings of BS2015: The 14th Conference of the International Building Performance Simulation Association (IBPSA), Hyderabad, India, pp. 2705-2711.
according to the environmental changes. This paper
presents a current development of an in-progress
research that explores an origami-based facade design
to control daylight uniformity. The simulation was
carried out for a south oriented façade of an office
room in Aswan, Egypt, through two phases. The
previous optimized results represent the static base
case, which were be compared to the proposed
dynamic model. The first phase simulated
kaleidocycle screen at 21-March, 21-June, 21-
September and 21-December taken of working day
hours [8AM – 6PM]. The Second phase used
comparative analysis of parametric simulation results
for the same dates. Results demonstrate that dynamic
solar screens achieved a better daylighting
performance in comparison to optimized static base
case in the winter season.