Master Degree / Yüksek Lisans Tezleri
Permanent URI for this collectionhttps://hdl.handle.net/11147/3008
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Master Thesis Double-Skin Facade Options for Optimum Daylight Quality: an Office Case in Izmir(Izmir Institute of Technology, 2019) Ergin, Meltem; Kazanasmaz, TuğçeDSF buildings have been designed and used mainly for the purposes of improving human comfort and decreasing energy consumption in new and renovated structures. However, there has been scarce studies in literature concerning daylighting in DSF buildings in comparison to thermal and ventilation systems. Actually, lighting is responsible for %30 to %40 of all the energy utilized in office buildings. This value is remarkable to take into consideration the daylight efficiency of DSF building at the design phase. This study examines the effect of double-skin facades system variables on daylight performance. In accordance with this purpose, an office in Izmir Institute of Technology (Iztech) has been selected and primarily, it has been tested to measure the reliability of the daylight simulation software (Relux) to be used. Later, the effect of the second skin on daylight performance has been analyzed by comparing single skin glass curtain wall and double skin facade simulations. Various components generally used in the double-skin facades have been detected and their effects on daylight level have been studied. These components are glass types, replacement of internal and external facade layers and the depth of cavity. The simulation findings have been distributed to various comparison groups and the ratios of meeting 300 lx – 500 lx value suggested in office buildings have been analyzed. When the obtained results are examined, it can be understood that the daylight can be used at an optimal level with some interventions that can be applied in the design process of the double-skin facades.Master Thesis Optimizing the Window Size and Depth of a South-Facing Room With Prismatic Panels for a Better Daylight Performance(Izmir Institute of Technology, 2019) Köse, Fatma Büşra; Kazanasmaz, TuğçeIn a conventional side-lit room, light levels decrease rapidly as room gets deeper, resulting in excessive daylight exposure near the perimeter zones and need for artificial lighting at the back of the room. Therefore, it is not possible to achieve good lighting performance throughout the room unless any daylight strategy is developed. Advanced daylighting systems are developed to figure out this problem. Prismatic daylight-redirecting panels, for instance, improve daylight distribution through sun shading and redirection. This study mainly focuses on the performance of daylight redirecting prismatic panels attached in a south-facing, side-lit room with different room depths and windowto- wall-ratios (WWR). A deep-plan classroom was chosen as a reference case. The methodology is based on simulating the base model in Relux and testing it with alternative models composed of incrementally defined WWR and room depth values. The on-site measurements were performed to evaluate current daylight conditions and validate the simulation model. Illuminance values obtained throughout the room were evaluated in terms of the latest daylighting metrics and visual performance recommendations. Furthermore, simulation findings were used as inputs in constructing a multiple regression model to analyse the relation between room depth, window-towall- ratio and daylight illuminance. The study presents the optimal window-to-wall ratios in relation with varying room depths when prismatic panels are attached. It is considered that the requirements mentioned in standards can be revised taking account of advanced daylighting systems. Besides, the prediction model estimating illuminance in such design alternatives would be integrated in the initial design phase.