Architecture / Mimarlık

Permanent URI for this collectionhttps://hdl.handle.net/11147/24

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Author: search.filters.author.Kazanasmaz, Zehra TuğçeEnd date: 2019

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  • Research Project
    Çok katlı konut yapılarının enerji performansları ile tasarım verimlilik göstergeleri arasındaki ilişkinin belirlenmesi
    (2012) Kazanasmaz, Zehra Tuğçe; Ekmen, Kenan Evren; Turhan, Cihan; Gökçen Akkurt, Gülden; Erlalelitepe, İlknur
    Enerji verimliliği, kaliteli konut tasarımında ciddi bir konu olarak önem taşımaktadır. Binaların mimari konfigürasyonlarının ve tasarım normlarının da enerji performansına doğrudan etkisi olduğu bilinmektedir. Avrupa Birliği içerisinde enerji tüketimini azaltmak için çıkartılan enerji verimliliği yasaları dikkate alındığında, Türkiye, halen, Avrupa Birliği’nin en son çıkan Binalarda Enerji Performansı Yönergesi 2010/31/EC’ e uymak için yönetmelikler çıkarmakla yükümlüdür. Türkiye’nin en yeni yönetmeliği, mevcut binaların enerji performansının değerlendirilmesi hakkında bilgi gerektirmektedir. Böylece, bu çalışma İzmir’ deki konut binalarının enerji performanslarını belirlemeyi, istatistiksel analizlerle enerji performansları ile tasarım verimlilik göstergeleri arasındaki ilişkiyi incelemeyi amaçlamıştır. Uygulama projeleri elde edilerek belirli alan bazlı oranlar ve bina ölçüleri mimari tasarım göstergeleri olarak belirlenmiştir. Örnek binaların enerji performansları, Türk standardı olan TS825 ile Avrupa standardı olan EB ISO 13790’ı temel alarak hazırlanan Konutlarda Enerji Performansı Standart Değerlendirme Metodu (KEP-SDM) kullanılarak belirlenmiştir. Sonuçlar bize öylesine bir ipucu sunmaktadır ki değişkenler arasındaki etkileşim ile bunların binaların enerji performansı ve CO2 salımlarına olan etkilerinin düşünülmesi gereklidir. Ayrıca, elde edilen bulgular, ülkemizde örnek seçilen bir şehir olan İzmir’deki konut bina stoğu hakkında da geribildirim sağlamaktadır.
  • Article
    Citation - WoS: 5
    Citation - Scopus: 5
    Comparison of Advanced Daylighting Systems To Improve Illuminance and Uniformity Through Simulation Modelling
    (Znack Publishing House, 2014) Kazanasmaz, Zehra Tuğçe; Fırat Örs, Pelin
    Deficiencies in daylighting performance (illuminance and uniformity) of educational facilities may cause health problems, work performance loss and excessive energy consumption. The varying nature of daylight in daily and yearly basis is a strong challenge on that matter. Advanced daylighting systems have been developed to overcome this challenge. Improving the daylighting performance of existing buildings is another difficulty in daylighting design. Daylighting design needs should be carefully considered at the initial design stages of the buildings. So, the aim of this study was to improve the illuminance and uniformity in four selected architectural design studios in Izmir. Measurements of daylight illuminance were conducted in May and June 2012. Simulation models were built in Ecotect/Radiance. To reach the best daylighting performance, simulations were carried out by Desktop Radiance with applying laser cut panels, prismatic panels and light shelves. It is considered that retrofitting efforts after the construction would be inadequate regarding daylighting, unless complying with the standards during the design process.
  • Article
    Aydınlatma Kontrol Sistemlerinin Kullanıcı Memnuniyeti Üzerindeki Etkisine Eleştirel Bir Bakış
    (Manisa Celâl Bayar Üniversitesi, 2016) Cılasun Kunduracı, Arzu; Kazanasmaz, Zehra Tuğçe
    Otomatik aydınlatma kontrol sistemleri, yapay aydınlatma tüketimini düşürme amacı ile günümüzde sıklıkla kullanılmaktadır. Farklı çeşitleri ile kullanımı giderek yaygınlaşan otomatik aydınlatma kontrol sistemleri, teknolojinin ve bina enerji yönetim sistemlerinin gelişmesi ile enerji tasarrufunu kullanıcı memnuniyetinden ödün vermeden sağlamayı hedeflemektedir. Bu teknolojik uygulamaların enerji açısından verimliliği pek çok araştırma ile ortaya çıkarılmış, alan çalışmalarıyla elde edilen verilerle ve örneklerle açıklanmıştır. Ancak, söz konusu sistemlerin enerji tüketimine sağladığı katkının dışında kullanıcı memnuniyeti ile kurduğu ilişki üzerinde az durulmuş bir konudur. Halbuki yapılar, kullanıcıları için tasarlanıp uygulanır. Bu sebeple, öncelikli hedeflerden biri kullanıcı memnuniyetini sağlamaktır. Bu amaç doğrultusunda, literatürdeki aydınlatma kontrol sistemlerini inceleyen çalışmaların kullanıcı memnuniyeti açısından yaptığı değerlendirmeler ve söz konusu sistemlerin kullanıcı ile kurduğu ilişkiler incelenecektir. Bu incelemede, çeşitli aydınlatma kontrol sistemi türleri (varlık, günışığı ve zaman ayarlı kontrol sistemleri) ele alınıp, kullanıcı memnuniyeti açısından literatürde yer alan çalışmalar üzerinden tartışılmıştır.
  • Article
    Citation - Scopus: 3
    Climate Based Daylight Simulations With Evaldrc - Analysis of Daylight Redirecting Components
    (TU Delft Open, 2017) Bauer, Carsten; Kazanasmaz, Zehra Tuğçe; Wittkopf, Stephen
    The new calculation tool EvalDRC enhances current strategies for the simulation of Daylight Redirecting Components (DRCs). It is built upon RADIANCE as a core simulation engine and uses the daylight coefficient method, climate based sky models for annual simulations, and daylight metrics for data reduction. Contribution Photon Mapping is introduced as a new method for physically correct DRC simulation. Further new features are: separate True Sun Coefficients for a less approximated, more accurate treatment of the sun contribution and monthly breakdowns of the Spatial Daylight Autonomy, and Annual Sunlight Exposure metrics for more detailed information about DRC performance over the course of the year. To show the versatility of the tool, two application studies were carried out in which either measured Bidirectional Scattering Distribution Functions (BSDF) or detailed geometry models were used for the DRC simulation. © This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Author(s) hold their copyright without restrictions.
  • Conference Object
    Citation - WoS: 6
    Citation - Scopus: 13
    A Methodology for Daylight Optimisation of High-Rise Buildings in the Dense Urban District Using Overhang Length and Glazing Type Variables With Surrogate Modelling
    (Iop Publishing Ltd, 2019) Ekici, Berk; Kazanasmaz, Zehra Tuğçe; Turrin, Michela; Taşgetiren, M. Fatih; Sarıyıldız, I. Sevil
    Urbanization and population growth lead to the construction of higher buildings in the 21st century. This causes an increment on energy consumption as the amount of constructed floor areas is rising steadily. Integrating daylight performance in building design supports reducing the energy consumption and satisfying occupants' comfort. This study presents a methodology to optimise the daylight performance of a high-rise building located in a dense urban district. The purpose is to deal with optimisation problems by dividing the high-rise building into five zones from the ground level to the sky level, to achieve better daylight performance. Therefore, the study covers five optimization problems. Overhang length and glazing type are considered to optimise spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE). A total of 500 samples in each zone are collected to develop surrogate models. A self-adaptive differential evolution algorithm is used to obtain near-optimal results for each zone. The developed surrogate models can estimate the metrics with minimum 98.25% R2 which is calculated from neural network prediction and Diva simulations. In the case study, the proposed methodology improves daylight performance of the high-rise building, decreasing ASE by approx. 27.6% and increasing the sDA values by around 88.2% in the dense urban district. © Published under licence by IOP Publishing Ltd.
  • Article
    Citation - WoS: 10
    Citation - Scopus: 11
    Analysis of the Relationship Between Daylight Illuminance and Cognitive, Affective and Physiological Changes in Visual Display Terminal Workers
    (SAGE Publications Inc., 2019) Öner, Merve; Kazanasmaz, Zehra Tuğçe; Leccese, F.; Salvadori, G.
    This study explored the impact of daylight illuminance on cognitive load during visual display terminal use by means of various physiological, performance and subjective measures. Repeated-measures design was adopted to identify the impact of variations in daylight levels that were manipulated through the shading system configurations (shading-on; shading-off). A total of 30 subjects performed visual and cognitive demanding tests. Performance measures were supported by subjective data and eye-related measures during the experimental analysis. Results revealed that the use of a shading system had positive impact on sustained attention. Concerning ocular measures, percentage of eye closure values showed opposite tendencies among vigilance and sustained attention demanding tests. Eye aspect ratio-max and blink duration were significantly correlated with reported glare sensation. In all tests, eye aspect ratio-max was found significantly higher in lower illuminances. Search velocity was significantly correlated with ocular variables in higher illuminances whereas sustained attention showed an opposite trend. This, initially, explains that even slight differences in daylight illuminance might have distinctive effects on the relationship between different groups of assessment variables while measuring cognitive load. Secondly, it proves the significance of carrying out sensitive experiments in terms of both light levels and test characteristics.
  • Article
    Citation - WoS: 4
    Citation - Scopus: 5
    Illuminance and Luminance Based Ratios in the Scope of Performance Testing of a Light Shelf-Reflective Louver System in a Library Reading Room
    (Znack Publishing House, 2019) Öner, Merve; Kazanasmaz, Zehra Tuğçe
    Uncontrolled daylight brings visual and thermal problems that may result in negative interactions with user comfort, productivity, well-being, and human health. Library spaces, in which reading, writing, and computer task activities are performed, need to be well designed in terms of daylight performance to enhance user satisfaction. The focus of this study is to make a performance test of a light shelf-reflective louver system to improve the visual performance conditions of a library reading room. First, the instrumental monitoring of existing daylighting conditions was performed. Second, Relux model was prepared to evaluate luminance patterns and illuminance distribution. Third, a new light shelf-reflective louver system was proposed based on the insufficiencies of the simulation results. The performance of the new system was found highly satisfactory based on the findings of enhanced luminance patterns and uniformity ratios especially at the points near the windows.
  • Article
    Citation - WoS: 21
    Citation - Scopus: 27
    Exploring the Impact of External Shading System on Cognitive Task Performance, Alertness and Visual Comfort in a Daylit Workplace Environment
    (SAGE Publications Inc., 2019) Leccese, F.; Salvodori, G.; Öner, Merve; Kazanasmaz, Zehra Tuğçe
    The authors examined the effect of external shading system on cognitive performance, alertness and visual comfort of visual display terminal (VDT) users under two realistic office lighting settings in this study. Daylight was the source of illumination being considered as the most significant and preferred one. A total of 26 participants performed visual and cognitive demanding tasks as well as providing subjective alertness, performance and visual evaluations in a full-scale mock-up VDT workstation. Two trials (with and without shading system) were executed during one experimental session. Results revealed that the use of a shading system improves the performance of a user on colour-naming task requiring sustained attention, while no differential effects were observed on tasks involving other cognitive skills such as search velocity and vigilance. Within-subject performance differences were more pronounced during morning hours. Higher performance was reported in some cognitive tests when the subjective sensation of visual discomfort was lower.
  • Article
    Work Characteristics, Visual and Energy Needs in Office and Factory Lighting
    (International Journal of Science and Technology, 2018) Öztürk, Yasemin; Kazanasmaz, Zehra Tuğçe
    The visual effect of lighting effects health and comfort conditions of a working place. Lighting design requirements are based on the function of spaces. Healthy and comfortable work spaces increase user motivation, mentally support them, improve concentration and physically decrease accidents. Lighting strategies applied to the offices are arranged according to working hours and needs of the user, while they are needed to be implemented more systematically in factories than the offices due to the industrial characterization including task types, machines/equipment, etc. Working styles influence the lighting strategies. The purpose is to prevent the undesired reflection from the computer screen in offices, while it is essential to provide an environment that decreases the work accidents in industrial buildings. Color rendering index is a vital issue to determine the reality sense of color mostly necessary for reading tasks in offices. Energy requirements can be lower by LED technologies in factories and by auto controlled systems in the open plan offices to apply appropriate daylighting plan. So, working time, working style color rendering index and energy benefits are discussed regarding two workspaces, offices and factories, comparatively. Such a comparison can contribute to literature in terms of indicating key design considerations in two distinctive work spaces.
  • Article
    Citation - WoS: 7
    Citation - Scopus: 9
    Fuzzy Logic Model for the Categorization of Manual Lighting Control Behaviour Patterns Based on Daylight Illuminance and Interior Layout
    (SAGE Publications Inc., 2019) Cılasun Kunduracı, Arzu; Kazanasmaz, Zehra Tuğçe
    In considering total building energy consumption, lighting plays an important role in shaping energy consumption and use. Although key strategies (such as energy efficient lighting products, lighting control systems and energy simulation software) are developed so far, such attempts may be unsuccessful unless users are not taken into consideration. Users’ behaviours and their manual lighting control actions depend on various factors, though within the scope of this study manual lighting control behaviour was analysed only in terms of interior layout and daylight illuminance. Three private offices in Izmir Institute of Technology were monitored using illuminance metres and occupancy/light detectors under eight different interior layout conditions. In relation to change of interior layout and daylight penetrations, users’ manual lighting control behaviours were monitored. The obtained data were then used to construct a fuzzy logic model in MATLAB FIS editor. A fuzzy logic algorithm was applied to classify behaviour patterns about the tendency to turn on the lights. This kind of prediction of the light usage tendency regarding the occupancy is aimed to foresee the ‘possible’ manual lighting control behaviour within given conditions. The gathered classification can be used further in future studies of manual lighting control behaviour and energy-saving estimations/simulations.