Sustainability in educational spaces from the perspective of lighting (case study, a public school in Cairo)

Energy conservation has a vital and essential role in achieving the dimensions of sustainable development in buildings In general, and in government educational buildings in Egypt in particular, without prejudice to the natural balance that God created in the universe. The problem of the research is that it was not taken into account in the design process of public schools in Cairo governorate from the perspective of environmental architecture in design and implementation, especially in terms of energy saving and in terms of achieving: natural lighting / ventilation / courtyards and building materials and others, in order to achieve international standards and The problem of not activating the use of environmental simulation programs in the existing government school buildings to address environmental issues related to energy conservation (Qin et al. 2018), and that the existing government school buildings do not comply with sustainability standards, Which leads to a shortcoming of the educational process (Unler 2008). The research aims to reveal the effect of the difference of orientation on the energy consumption of classrooms in public schools in Cairo, in order to reach typical treatments for these schools, and to reach the goal, the factors causing energy consumption during the operation of the building were studied, and then a proposal was developed to raise the energy efficiency of classrooms in educational buildings in a school The sample, through the integration of natural and artificial lighting to reach the optimal lighting intensity recommended in the global and local energy codes (Innes (2010 and Booher), and the methodology used in the applied study of the selected school sample depends on the comparative causal descriptive approach “comparing between two chapters in two different buildings” Orientation in the sample school, one in the northern direction and the other in the southern direction, using the contemporary technical applied method that depends on the application of a computer program for environmental simulation of the building in most stages of the research, using the Design Builder program, based on the experimental outputs and results of it (2018 Light). The results of the research paper show the importance of increasing the efficiency of natural lighting in school buildings, to reduce the use of natural lighting The research also found the need to integrate natural and artificial lighting strategies and the use of smart environmental lighting systems in buildings, and multi-level systems as integration systems to obtain greater A quantity.