In school buildings, especially learning spaces, good daylight and thermal conditions are importa... more In school buildings, especially learning spaces, good daylight and thermal conditions are important to promote the educational process, as unsatisfactory comfort levels can reduce physical and intellectual performance for both teachers and pupils. However, achieving successful classroom designs is rather complicated, as it requires the balancing of various interrelated factors, which is particularly challenging for hot and dry climates. In recent years, major improvements have been made in building optimization methods, and genetic algorithms used to search for high performing design solutions have shown their efficiency in solving such complex problems. This study shows how such an approach can be applied to optimize the thermal, lighting and energy performance of a middle school classroom in a hot and dry climate. Using a parametric approach and evolutionary multi-objective computation via Octopus plug-in for Grasshopper, various windows-to-wall ratios, wall materials, glass types...
International Journal of Control, Energy and Electrical Engineering (CEEE), 2019
Building sector holds a significant part in the world's total energy use. It accounts for about 4... more Building sector holds a significant part in the world's total energy use. It accounts for about 40% of the world's annual energy consumption and up to a third of greenhouse gas emissions (United Nations Environment Program, 2007). In Algeria, building-related energy consumption accounts for almost half of the total country consumption. As a result, the architecture and construction framework is one of the key areas where action can be taken to produce fast and sustainable changes. For this reason high performance design is becoming more desirable in the field of architecture. This study aims to evaluate the effect of opening ratio of the facade on the total energy consumption of a classroom. The investigation concerns a secondary school located in Biskra which is characterized by a hot and dry climate. In this respect, various opening ratios and different orientations have been tested to achieve optimal lighting with a low level of energy consumption. The goal is to provide architects with simple operational recommendations for the choices they make in designing school facades. The parametric study used the Grasshopper program for Rhinoceros which is one of the most popular parametric platforms today. Experimental results are evaluated in terms of monthly and annual energy consumption and optimal values are determined. Simulation tests indicated that any design modification in opening ratio and orientation has a significant effect on energy consumption for heating, cooling, and electric lighting. Thus, an appropriate choice made at the glazed surface of the facade can significantly reduce the building's total energy requirements.
In school buildings, especially learning spaces, good daylight and thermal conditions are importa... more In school buildings, especially learning spaces, good daylight and thermal conditions are important to promote the educational process, as unsatisfactory comfort levels can reduce physical and intellectual performance for both teachers and pupils. However, achieving successful classroom designs is rather complicated, as it requires the balancing of various interrelated factors, which is particularly challenging for hot and dry climates. In recent years, major improvements have been made in building optimization methods, and genetic algorithms used to search for high performing design solutions have shown their efficiency in solving such complex problems. This study shows how such an approach can be applied to optimize the thermal, lighting and energy performance of a middle school classroom in a hot and dry climate. Using a parametric approach and evolutionary multi-objective computation via Octopus plug-in for Grasshopper, various windows-to-wall ratios, wall materials, glass types...
International Journal of Control, Energy and Electrical Engineering (CEEE), 2019
Building sector holds a significant part in the world's total energy use. It accounts for about 4... more Building sector holds a significant part in the world's total energy use. It accounts for about 40% of the world's annual energy consumption and up to a third of greenhouse gas emissions (United Nations Environment Program, 2007). In Algeria, building-related energy consumption accounts for almost half of the total country consumption. As a result, the architecture and construction framework is one of the key areas where action can be taken to produce fast and sustainable changes. For this reason high performance design is becoming more desirable in the field of architecture. This study aims to evaluate the effect of opening ratio of the facade on the total energy consumption of a classroom. The investigation concerns a secondary school located in Biskra which is characterized by a hot and dry climate. In this respect, various opening ratios and different orientations have been tested to achieve optimal lighting with a low level of energy consumption. The goal is to provide architects with simple operational recommendations for the choices they make in designing school facades. The parametric study used the Grasshopper program for Rhinoceros which is one of the most popular parametric platforms today. Experimental results are evaluated in terms of monthly and annual energy consumption and optimal values are determined. Simulation tests indicated that any design modification in opening ratio and orientation has a significant effect on energy consumption for heating, cooling, and electric lighting. Thus, an appropriate choice made at the glazed surface of the facade can significantly reduce the building's total energy requirements.
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Papers by Khaoula LAKHDARI