Impact of Different Shading Devices on Daylight Performance and Visual Comfort of A Four Opening Sides' Reading Room In Rasht

Abstract

Daylighting has become an essential feature in libraries since it can boost productivity, well-being, and energy savings. It is crucial to prevent discomfort glare irritation while maintaining the quality of view, and daylight demands. This study compares four different shading systems on all fronts of a reading room. Shading devices include a Perforated Solar Screen (PSS), besides three Venetian Blinds typologies (exterior, interior, and exterior integrated with overhangs) are generated considering various parameters. The 60-min time step for an entire year is used to find out the worst dates for glare analysis in different positions for Rasht, Iran. The findings of Daylight Autonomy (DA), Useful Daylight Illuminance (UDI), Daylight Glare Probability (DGP), and Quality of View (QV) depict that PSS is ineffective at glare reduction but is adequate for annual metrics and view quality. Moreover, Venetian Blinds in every three typologies are sufficient to deal with glare problems on most dates, despite differences in their characteristics being reported. Annual metrics and Quality of View in these cases, depending on variables, are changeable.

Evaluation of Daylight and Glare Quality of Office Spaces with Flat and Dynamic Shading System Facades in Hot Arid Climate

“…Many studies are carried out on the evaluation of daylight in buildings. These studies focus on the measurement of daylight in a simulated space according to different methodologies, shading and weather conditions [8,9,11,12,14,15]. Different climate type, selection of different materials, different sizes of spaces and different facade design are used in the spaces where different parameters are considered as input daylight and glare analysis results can change.…”

“…Daylight, one of the important regulators of users in maintaining their lives in a healthy environment, has been discussed in many of the studies related to passive and active systems. Within the scope of daylight studies, the development of an interactive user according to the position that can turn the front [9], the daylight to take advantage of fiber-based development of daylight systems [10], on an annual basis, data-based lighting control systems by using how much energy savings can be made [11], different passive and active facade systems equipped with a function of thermal conditions and to estimate the annual energy consumption for space [8], the comparison of four different reading rooms in the front of all the shading systems [12], a suitable combination of kinetic movement tinted glass with the composition behavior and to provide a methodological technique [13], a high amount of solar radiation in the region of the field without any shading tool In a hot arid climate, shading the front of the instrumented comparison of passive dynamic shading and hard [14] in research is discussed. The dynamic facade system in which the focus of studies in the preliminary design phase is active/passive climate adaptive building shells (CABS) system to assess the potential impact of the adoption of quick but the provision of a reliable methodology [15] research is discussed.…”

Design of external shading devices in Mansehra, Pakistan and their role in climate change

“…The building envelope must filter the incoming solar radiation in order to penetrate the structure (Rashid et al, 2019). The fenestration area is significant to the building envelope because it serves as a point of exchange between the climatic conditions within and outside (Dabaj et al, 2022). Since large windows and expansive fenestration areas in architecture have grown popular in recent years, this has led to significant energy usage.…”

“…Since large windows and expansive fenestration areas in architecture have grown popular in recent years, this has led to significant energy usage. Additionally, daylighting and occupant visual comfort are significantly impacted (Dabaj et al, 2022). Therefore, the significance of shading devices in reducing the heat gains within the structure is one of its main components, in addition to the fenestration design and large windows.…”