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    Adaptive reuse of open spaces in historical buildings
    (Emerald Group Publishing Ltd, 2020) Cakir, Hatice Kiran; Aydin, Dincer; Arabulan, Selin
    Purpose This study aims to evaluate the use of open and green spaces (OGS) of a historical building after the adaptive reuse of the building. The relationship between the use of OGSs and the perceived environments of the users is examined. Design/methodology/approach To determine the OGS use preferences of the users and to obtain quantitative data, a survey was conducted. The data were evaluated using descriptive statistics in SPSS. Also, observation method was used to determine the frequency measurements of OGS. Thus, the relationships between the results were identified statistically. Findings It has been determined that the outdoor space features of a historical building should be arranged following its new function. The use of OGSs was affected by the physical properties of the spaces, accessibility and time spent in the settlement. Originality/value The historical building itself and its interior spaces, as well as the open, semi-open and green spaces of the building, are affected by the adaptive reuse process. However, the fact that only a few studies in the literature focus on the outdoor environment of the re-functionalized historical buildings makes this study original and unique.
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    A CASE STUDY ON THE IMPACT OF BUILDING ENVELOPE ON ENERGY EFFICIENCY IN HIGH-RISE RESIDENTIAL BUILDINGS
    (Silesian Univ Technology, 2020) Aydin, Dincer; Mihlayanlar, Esma
    The building envelope, the most important element in the energy consumption of a building, gains more importance due to the large amount of the surface area of building's facade in high-rise buildings. The energy consumption of these buildings is increasing depending on their high transparency ratio as a result of decrease in the thermal resistance of the facade. The aim of this study is to show the importance of building envelope design in energy efficiency of high-rise residential buildings and to analyze the effect of the building envelope design on energy consumption. Turkey's highest residential building from 2010 to 2017 was selected for the case building. DesignBuilder program with the EnergyPlus simulation engine was used for energy analysis of the building. The energy consumption results were compared with the other study data in the literature. As a consequence of the simulation conducted according to the existing facade of the building, 25% of the energy is used for heating and 14% for cooling in total energy consumption. It has been found that the building envelope designed with double-layered air corridor can offer the maximum level of residential comfort to the occupants. This study shows that the building facade with air corridor also reduces energy consumption by 30% compared to the same sized buildings.
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    A Comparative Study on Turkey's National Green Building Certification System Under Energy Policy Developments
    (Konya Technical Univ, Fac Architecture & Design, 2020) Umarogullari, Filiz; Kartal, Semiha; Aydin, Dincer
    In today's living conditions, the quality of life depends on well-managed energy. Therefore, countries produce different energy policies to manage their energy resources. Determining appropriate, feasible, and controllable energy policies becomes important especially for buildings, as being one of the most significant energy consumers. Green building certification systems (GBCSs) are one of the most common applications for energy efficiency in the building sector. Purpose This paper is a comparative analysis of GBCSs in developed and developing countries, in an effort to establish the similarities and differences between Turkey's first national GBCS - B.E.S.T and other GBCSs, and to determine how the energy criteria in GBCSs contribute to each dimension of sustainability (i.e., environmental, economic, social). Design/Methodology/Approach The research methodology depends on the literature review and documentary review on energy-related regulations, legislation, and laws. A comparative analysis of GBCSs was conducted in the study. Not only the sub-criteria directly exist under the energy criterion, but also indirect energy criteria, which are included in the sub-criteria of all other criteria within the GBCS, were numerically evaluated with the helped of developed matrix. Findings The results show that energy credits were given the highest weight by LEED (similar to 33%) in international GBCSs and by GRIHA (similar to 42%) in national GBCSs. In B.E.S.T, this is similar to 29%. It was determined that B.E.S.T was structurally similar to LEED, while it was similar to BREEAM in terms of weight and importance given to the energy criteria. According to the developing country GBCSs, the biggest similarity is seen with GBI. In terms of SD, it is found that GBCSs present similar characteristics to their regional development level. Where a GBCS serves for a developing region, the main concerns of energy criteria focus on the intersection of its environmental and economic aspects. Thus, B.E.S.T has been created in a similar structure and the highest share (%80) on environmental-economic aspects. Research Limitations In the study, the comparison was made between selected international GBCSs like BREEAM, LEED, and DGNB and national GBCSs like GM, GBI, and GRIHA. Practical Implications In practice, the results can help owners or developers to focus on which energy criteria contribute economic, social or environmental advantage for them. Social Implications This study also provides some recommendations for further application and academic studies of B.E.S.T. Originality/Value Increasing the recognition of Turkey's national GBCS in scientific researches and contributing to the development of it have made this study original and unique.
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    Determination of the significance of project delivery attributes (PDAs) on sustainable projects in Turkey
    (Emerald Group Publishing Ltd, 2022) Aydin, Dincer; Mihlayanlar, Esma
    PurposeMany parameters influence the success of sustainable projects (SPs) in the architecture-engineering-construction. One of these important parameters is the project delivery attributes (PDA), which are influenced by the project delivery system (PDS) while affecting the selection of it. This study aims to evaluate the significance of PDAs in influencing both the performance and success of SPs in Turkey, where the interest in SPs is high. Design/methodology/approachThe impact of PDAs was determined by applying the two-round Delphi method with a semistructured interview involving the main stakeholders of a construction project, like owners, designers, contractors and consultants who played active roles in SPs, as well as academics to theoretically evaluate the issue. The significance of PDAs was assessed using the relative importance index, and the results were validated using the interrater agreement analysis. FindingsThe study identified key PDAs impacting SPs as owner character, commitment and motivation; simulation and energy modelling; and timing of stakeholders/early involvement. Originality/valueThe investigation of the significance of the PDAs is a lesser-studied context. Therefore, a research framework that enables an effective set of methods for solving the sectoral problems of PDAs that have impacts on SPs has been proposed. The framework is expected to open new opportunities for the generation and regulation of the PDSs for SPs. The findings will provide valuable insights to project stakeholders, particularly owners, local authorities and policymakers to assess which PDAs have a greater impact on sustainability performance when setting PDSs in SPs in other developing countries.
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    An Investigation For Indoor Environmental Quality In High-Rise Residential Buildings
    (Yildiz Technical Univ, Fac Architecture, 2017) Aydin, Dincer; Mihlayanlar, Esma
    High-rise buildings are constantly changing and developing since they first began to be constructed. When the development of high-rise buildings is examined, most are found being used as offices. However, according to the changing economic, social and cultural requirements of contemporary urban life, this function has been declining, and high-rise office buildings have been replaced with residential apartments. Although high-rise buildings are still primarily used as offices around the world (45%), more than 50% are used as residential buildings in Turkey. As people spend a considerable amount of time in residential spaces, high-rise buildings must also offer standard residence comforts to their users when functioning residentially. In this study, the influence of physical indoor environment parameters in high-rise residential buildings on their indoor environmental quality (IEQ) is examined. Selected national and international buildings are compared in terms of IEQ-determining parameters. To construct new high-rise residential buildings, methods-design, planning, technology, material, and application-that do not affect user health negatively and enhances the user productivity and energy efficiency have been determined. High- rise buildings can be designed to be environment friendly, energy efficient, and sustainable. However, the applicability of these factors decreases with per-meter increases in the building height. The study result indicates building skin as the most important component for obtaining an ideal IEQ. The design of the building envelope as a single facade can hamper the IEQ sustainability as well as occupant safety. However, designing the building envelope as a double skin facade offers thermal comfort with layered structure, fresh indoor air quality with opportunities for natural ventilation, acoustic comfort with noise absorption, and illumination comfort with sun control elements and can easily and sustainably ensure IEQ and occupant safety.