WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7150
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Article Citation - WoS: 4Investigation of Buildings in Alacati in Terms of Energy Efficiency in Architecture(Konya Technical University Faculty of Architecture and Design, 2020) Avcı, Ali Berkay; Beyhan, Şefika GülinPurpose Due to the depletion of natural resources, energy efficiency in buildings has increasingly gained a major priority. As vernacular houses contain accumulated knowledge to adapt to the climate, they have been crucial examples of energy-efficient architecture for the designers. In this manner, the study focuses on Alacati vernacular houses. The purpose of the study is to investigate and compare the energy-efficient architecture properties of different types of tourism accommodation buildings. Design/Methodology/Approach The accommodation buildings are grouped into three categories, namely Accommodation buildings converted from vernacular houses of the area, New accommodation buildings designed in the style of vernacular houses, and Accommodation buildings that have different architectural styles. Selected three sample buildings from each group are evaluated by energy efficiency principles. Building energy simulation models of the nine case buildings in total are developed to determine the building components' contribution to energy consumption by heating and cooling. The values from energy modeling are used to compare the buildings according to the checklist. Findings According to the results of the study, the density of space, natural ventilation, shading elements, and pitched roof type specialties of vernacular buildings reduce heating and cooling load. However, traditional stone load-bearing walls and bay windows, which are the most significant element of the building form, increase the annual energy demand. At the end of the study, Alacati Energy-Efficient Architecture Database Schema is presented in Table 10 as the outcome of the study. Research Limitations/Implications The evaluation of the case buildings merely depends on the annual cooling and heating energy loads of nine randomly selected buildings. Practical and Social Implications The assessment method used in the study provides the opportunity to identify the proportion of the effect of energy efficiency properties on the total heating and cooling load. Furthermore, the Alacati Energy-Efficient Architecture Schema presented as the ultimate product of this study is expected to guide the architects to design energy-efficient accommodation buildings, without compromising the vernacular architectural appearance of Alacati. Originality/Value The study focuses on the separate effects of the properties of Alacati vernacular architecture, instead of focusing on one property, or comparing case buildings on the energy consumption.Conference Object Energy-Efficient Resource Allocation for Multiuser Ofdm Wireless Networks(Institute of Electrical and Electronics Engineers Inc., 2015) Durbaş, Şükrü; Özbek, BernaIn the last decades, the energy consumption in wireless communication systems is increasing and becoming a major problem for cellular operators. As a result of that, solutions to increase energy-efficiency (EE) in wireless networks are becoming more popular. Therefore, the resource allocation algorithms that provides EE for multiuser OFDM based wireless networks is presented in this paper. Then, the conventional spectrum-efficient (SE) designs are compared with EE based schemes and EE characteristics of the system has been analyzed. The simulation results show the advantages of EE scheme especially on high channel-gain-to-noise ratio and low number of users cases.Article Citation - WoS: 14Citation - Scopus: 14Thermal Simulation of Retrofits To Existing Mass Housing in Turkey for Energy Efficiency(Sila Science, 2011) Yıldız, Yusuf; Durmuş Arsan, ZeynepEnergy consumption in the existing residential building stock in Turkey is currently excessive. Mass housing, comprising a major portion of the officially-registered residential stock, carries enormous potential for energy savings even in the short run. This paper describes a case study in a mass housing area in Izmir, Turkey, in order to demonstrate the possibility of significant energy savings by implementing case-specific energy-efficient retrofitting scenarios and relating them with the payback periods. Building energy analysis software was used to examine thirteen scenarios consisting of various combinations of four main retrofitting options: addition of extra insulation for building envelope, replacement of existing glazing, regulation of air infiltration rate and indoor set point temperature. These scenarios revealed that annual energy savings of up to 62% are achievable and that the customer payback period for the best retrofitting scenario is 34 years.Book Part Citation - WoS: 2Citation - Scopus: 2Energetic and Exergetic Design Evaluations of a Building Block Based on a Hybrid Solar Envelope Method(Springer Verlag, 2018) Mert, Yelda; Saygın, NicelTo achieve sustainable development, there needs to be a focus on decreasing use of non-renewable energy sources and greenhouse gas emissions. In this regard, many studies focus on the strong relationship between energy and the environment. This study aimed to introduce the exergy analysis method into the urban planning field to find out the amount of exergy, rather than energy, that can be conserved in a building block when a solar envelope-based design is applied. In addition to the known energy-efficient design parameters, a criterion for the solar envelop method is integrated into a single method. This hybrid method includes taking into account the requirements for orientation, spacing, landscaping, and building form, as well as the building height properties as proposed in the solar envelop method. The solar envelop method depends on understanding the changing position of the sun throughout the day and year. If this dynamic behavior can be a factor in the design of an urban area, environmental friendliness, sustainability, and reduced energy consumption can comprehensively be achieved in cities.Conference Object Citation - WoS: 14Citation - Scopus: 22Energy Aware Routing and Traffic Management for Software Defined Networks(Institute of Electrical and Electronics Engineers Inc., 2016) Özbek, Berna; Aydoğmuş, Yiğitcan; Ulaş, Aydın; Görkemli, Burak; Ulusoy, KazımSince traffic diversity and volume increase with growing popularity of mobile applications, there is the strong need to manage the traffic carried by networks. Software defined networks can simplify network management while enabling new services by employing traffic management including routing whose goal is to maximize the given utility while satisfying capacity requirements. In this paper, we propose an efficient routing algorithm to minimize the cost based on power consumption determined by the number of active OpenFlow switches in a software defined network while satisfying throughput requirements of all flows according to constraints on link capacities in the network. We evaluate the performance of the proposed algorithm based on the number of active switches for different network topologies with various scenarios.