Reevaluation of the Egyptian code of housing and energy consumption with emphasis on shading devices rotation angles

Abstract EN

The passive system technique is dynamically used as an alternative to the active system, in order to minimize the peak loads and the total EUI in kWh/ m² for any building prototype.

Sun breaker or shading device is a basic traditional method and Mashrabiya was previously used for privacy.

It reduces the heat gained and emitted from sun's rays, in addition to the fabricated wood material and its specs of bad conductor.

The study aims at investigating the effect of rotational shading devices around the Y-axis.

Will the rotation have a significant impact on the EUI or not? The research methodology is built upon generative modeling tool of parametric design, Rhinoceros Version 6.0, with the cooperation of Grasshopper, Ladybug and Honeybee, and Toolbox.

Five hundred running simulations are carried out to determine the optimal angle of rotation with maximum reduction in cooling loads, and the interpretation is 30°.

Two linear regression equations are derived from this valuable study to deduce the correlation between independent and dependent variables when the sun breaker material is matt or reflective and to know how the total EUI kWh/m²can be minimized.