Browsing by Author "Yüksek İ."

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    Assesment of daylighting performances of classrooms: A case study in Kirklareli University, Turkey
    (LLC Editorial of Journal "Light Technik", 2015) Yüksek İ.; Görgülü S.; Kocabey S.; Tuna M.; Dursun B.
    This study was conducted to evaluate the daylighting performances of classrooms. For this study, a classroom in Kayali Campus and two classrooms in Kavakli Campus of Kirklareli University have been selected. In these buildings, the illuminance levels have been measured and standards and design rules have been investigated. Modelling in the Velux Daylight Visualiar simulation program, the classrooms have been evaluated in terms of daylighting parameters. Consequently, window properties that can provide better natural lighting in the classroom have been identified. According to the measurements and the results of the simulation, daylight illuminance levels in these environments has been found to vary by directions. The buildings’ orientation, the window openings on the facade of buildings and the shading elements should be designed at the point of the natural lighting idea by expert designers in the field. © Svetotekhnika, Znack Publishing House. All Rights Reserved.
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    The evaluation of fired clay brick production in terms of energy efficiency: a case study in Turkey
    (Springer Science+Business Media B.V., 2020) Yüksek İ.; Öztaş S.K.; Tahtalı G.
    High energy consumption in building material production has a significant effect on global warming and other environmental pollution, which has brought into prominence building materials whose production consumes less energy and uses renewable energy sources. In particular, the production phase of brick, a commonly used material in building construction, has an important effect on energy consumption. This study aims to obtain and analyse local energy data in each phase of brick production, compare the energy consumption of local brick factories using different kiln types in Turkey, and contribute to the development of processes for energy-efficient brick production. For this purpose, all the necessary energy data were collected from two factories, one of which uses a Hoffman and the other a tunnel kiln in the system boundary from cradle-to-gate. The local energy data were analysed for the two factories on the assumption that they would reflect the data for the same or similar brick production methods and technologies in Turkey, and this local data and data gathered from the literature were compared in terms of energy consumption. The findings point out that while most energy is consumed during the firing process in both factories, the tunnel factory consumes more energy in total than the Hoffman factory because of the clay preparation process and the calorific value and moisture content of the coal used for firing. The study also reveals that the potential exists for energy efficiency gains in brick production in Turkey. © 2020, Springer Nature B.V.
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    LIFE CYCLE ENVIRONMENTAL ANALYSIS OF BRICK PRODUCTION: TURKEY AS A CASE STUDY
    (College Publishing, 2022) Öztaş S.K.; Yüksek İ.
    Brick production has significant environmental impacts; its use of coal in particular emits CO2 emissions and pollutants. Despite the Turkish brick industry’s use of coal in its firing process, there is no environmental data for its fired brick production. This study thus aims to obtain local environmental data, assess environmental impacts, and contribute to product and process development for sustainable fired brick in Turkey. For this purpose, two Turkish brick factories of different kiln types, Hoffman and tunnel, were monitored for environmental sustainability as case studies. A Life Cycle Assessment (LCA) was used in the system boundary from cradle-to-gate. After the acquisition of the factories’ inventory data, their environmental impacts were assessed and compared. The study then uses these results to determine the life cycle phases most important in supporting decision-making by designers and practitioners and the contribution of each phase to the total environmental burden for each impact category. It was determined that manufacturing is the most relevant life cycle phase for all impact categories except terrestrial ecotoxicity and water consumption. The Hoffman factory gives more favorable results than the tunnel factory for all impact categories, with the exceptions of fine particulate matter formation and mineral resource scarcity. These results may allow for comparison with other studies on the environmental impacts of fired brick production. © 2022, College Publishing. All rights reserved.
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    Geometric analysis of early Ottoman tombs within the context of conservation studies
    (Emerald Publishing, 2024) Niğdeli Z.F.; Gençer F.; Yüksek İ.
    Purpose: The purpose of the study is to provide a dataset about geometrical constructions of early Ottoman tombs for conservation studies. Thus, a proposal for the restitution phase of the damaged tombs aims to develop. Design/methodology/approach: The study is composed of four phases. First, the representative plan and section drawings of early Ottoman Tombs were redrawn; second, a geometrical analysis was made, a proposal table was prepared for the restitution of the damaged tombs; and last, this table was applied to tomb examples and restitution drawings are verified with the original situation of the tombs. Findings: Early Ottoman tombs may be interpreted through geometric shapes, including the square, circle, triangle, octagon, arsin grid and quadrature systems. The arsin grid system provides information about the position of the domes and the height of the drums and windows. Quadrature establishes the highest point of domes and entrances. The proposal table, developed from the obtained results, facilitated the identification of the original elements, including the dome, drum, window and portal. This information is crucial for conducting further studies on restitution. Originality/value: The abundance and dispersed nature of tomb structures compared to other architectural designs pose challenges in their scholarly examination. The early Ottoman tombs, which experienced an increase in numbers following the Conquest of Istanbul, serve as the initial expressions and embodiments of novel architectural endeavors. Thus, the determination of design ideas of the early Ottoman tombs sheds light on Ottoman architectural practice, which has remained largely unknown and guided the conservation studies of the tombs that have lost their integrity and originality. © 2023, Emerald Publishing Limited.