Mahmoud Islam Gadelhak

• Doctor of Engineering
• PhD Student at Technical University of Munich

Solar screens are typically used to control solar access into building spaces. They proved their usefulness in improving the daylighting and energy performance of buildings in the hot arid desert environments which are endowed with abundance of clear skies. The daylighting and energy performance of solar screens is affected by many parameters. Thes...

This paper investigates the integration of Building Performance Simulation (BPS) and optimization tools to provide high performance solutions. An office room in Cairo, Egypt was chosen as a base testing case, where a Genetic Algorithm (GA) was used for optimizing the annual daylighting performance of two parametrically modeled daylighting systems....

This paper reports on a research that aims at identifying acceptable window configurations that suit the requirements of hospital Intensive Care Units located in the desert. It aims at achieving daylight adequacy and visual comfort in a typical assumed ICU space, in Cairo, Egypt. Annual simulations were conducted using Diva-for-Rhino, a plug-in for...

M.Sc. Thesis - Ain Shams University, Egypt 2013

Minimizing the impact of shading devices on the view to the surrounding view is essential for indoor spaces that overlook exceptional scenery and views. Building facades that overlook such views require a special care not to obstruct the view to the outdoors. At the same time, poorly designed shading devices can result in high solar penetration and...

Analyzing the results of multi-objective optimization and building performance simulation can be a very tedious process that requires navigating between different software and tools. There is a clear scarcity in visualization tools that combine methods for big data analysis and design decision support tools that integrate detailed information for e...

Experimental approaches to studying behaviors based on visual signals are ubiquitous, yet these studies are limited by the difficulty of combining realistic models with the manipulation of signals in isolation. Computer animations are a promising way to break this trade-off. However, animations are often prohibitively expensive and difficult to pro...

Care Unit windows for the achievement of visual comfort and energy savings. The aim was to identify the window size and shading system configurations that could fulfill daylighting adequacy, avoid glare and reduce energy consumption. The study focused on addressing the effect of utilizing different shading systems in association with a range of Win...

Daylighting is considered one of the main passive strategies for enhancing indoor spaces quality. Shading device is usually used to prevent excessive sunlight from delivering into the building, especially in clear-sunny sky environment. The use of a per-formative shading device can help in reducing both cooling and lighting loads, as well as improv...

In desert sunny clear-sky regions solar penetration can become excessive. This can cause non-uniform daylight distribution, glare and high solar heat gain, affecting both visual and thermal comfort. Shading devices, such as solar screens, were usually used to diffuse and prevent direct solar penetration into spaces. This paper investigates the impa...

Desert buildings are exposed to clear sunny skies almost all year round. Solar rays penetrate into spaces creating a non-uniform daylight distribution and high solar heat gain; affecting both visual and thermal comfort. This paper addressed the usefulness of combing solar screens and light shelves for achievement of efficient daylight performance i...

The objective of this paper was to address the combined effect of using two solar screen parameters, together under the desert clear-sky. The paper examined the effect of the screen axial rotation and its opening proportion ratio on the year round daylight performance, and the resultant glare phenomena probability. A typical residential living room...