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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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    Condensation Control of Insulated and Uninsulated Concrete Walls in the Periodic Regime: The Case of Edirne
    (Yildiz Technical Univ, Fac Architecture, 2011) Umarogullari, Filiz; Gedik, Gulay Zorer; Mihlayanlar, Esma
    Sustainability is the sum of the precautions and conditions necessary to sustain life on earth. The major elements of sustainable design are choice of material and the building's post-construction performance. The most important factor in terms of building management is energy usage. On building envelope sections which are created to provide energy savings, the value of evaluating water vapor movement is often overlooked. Levels of condensation should not exceed the limits specified in the regulations. This is because the condensed water must not harm the building material or dry it out during the evaporation period. However, the thermal resistance of the building material is affected during the process before the drying period. Deterioration of the insulation material over time means that many theoretical level calculations do not reflect the true situation. In addition, due to the fact that the standards of some of these calculations are done in steady state conditions, realistic results cannot be achieved. If special precautions are not taken with regards to this, condensation damage occurs on the building elements. In this study of the climate conditions in Edirne, calculations are made using the computer program WUFI (R) 2D-3 for buildings' most frequently condensed reinforced concrete wall elements. Insulated and uninsulated wall sections are modeled for periodically changing external and constant internal environmental conditions. For comparison purposes, the reinforced concrete walls are calculated, first for non-insulation, and then insulated with different position of isolation. The calculated results obtained from the WUFI (R) 2D-3 program are shown in graphic form.
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    Research On Thermal Comfort and Indoor Air Quality: A Case Study On An Office Building
    (Yildiz Technical Univ, Fac Architecture, 2017) Ozdamar, Melek; Umarogullari, Filiz
    Indoor air quality rises in importance when considering that people spend large part of their time in enclosed spaces where indoor air is more polluted than outdoor environment. In the scope of this study, experimental research was done to investigate the thermal comfort and indoor air quality at an office building in the central district of Edirne. By choosing two office units, which facing different directions, in the rectangular formed building located at NE and SW directions, environment temperature, relative humidity, velocity of air flow, amount of CO2, PMV (predicted mean vote), PPD (predicted percentage of dissatisfied) and particle matter quantities at different diameters were measured. Measurements were organized so that each office unit has 8 measurements in two- month period. Besides that, measurements were taken at outdoor environment. With the help of tables and graphs, obtained numerical data were compared with limit values of ASHRAE Standard 55. As the result of investigation, it is understood that insolation direction of the office units has the importance on indoor air quality. However, building envelope, office area size and volume, type of heating system, number of user, existing furniture and equipment etc. factors are more important than insolation of the building. Moreover, smoking causes large amount of increase in the level of CO2 and quantity of particle matter in the environment. In fact, it is seen that level of CO2 is so high when also there is not smoking activity in the office.