Browsing by Author "Kahraman, Ilker"

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A Comparison between Building Energy Simulation and Measurement Results for a Municipality Building
(Grada Publishing, 2016) Aydin, Elif Esra; Kaya, Hande Odaman; Kahraman, Ilker
Citation - Scopus: 16
Design of rectangular façade modules through computational intelligence
(Institute of Electrical and Electronics Engineers Inc., 2017) Selim Karaman; Berk Ekici; Cemre Cubukcuoglu; Basak Kundakci Koyunbaba; Ilker Kahraman; Ekici, Berk; Karaman, Selim; Cubukcuoglu, Cemre; Koyunbaba, Basak Kundakci; Kahraman, Ilker
This paper presents an implementation of multiobjective optimization for a rectangular façade design proposal in a healthcare building's common space. Objectives are to maximize daylight performance and to minimize façade construction cost. The aim of this study is to enhance indoor comfort of an existing healthcare building by concerning cost-effective façade design alternatives subject to several constraints. To handle the problem we formulate a multi-objective real-parameter constraint problem. In order to solve this Non-Dominated Sorting Genetic Algorithm II (NSGA-II) and Multi-objective Self-Adaptive Ensemble Differential Evolution (jE-DEMO) algorithms are used. Finally both algorithms are capable to discover desirable set of design alternatives. © 2017 Elsevier B.V. All rights reserved.
Citation - WoS: 9
Design of Rectangular Facade Modules through Computational Intelligence Case of Common Space in Healthcare Building
(IEEE, 2017) Selim Karaman; Berk Ekici; Cemre Cubukcuoglu; Basak Kundakci Koyunbaba; Ilker Kahraman; Ekici, Berk; Karaman, Selim; Cubukcuoglu, Cemre; Koyunbaba, Basak Kundakci; Kahraman, Ilker
This paper presents an implementation of multi-objective optimization for a rectangular facade design proposal in a healthcare building's common space. Objectives are to maximize daylight performance and to minimize facade construction cost. The aim of this study is to enhance indoor comfort of an existing healthcare building by concerning cost-effective facade design alternatives subject to several constraints. To handle the problem we formulate a multi-objective real-parameter constraint problem. In order to solve this Non-Dominated Sorting Genetic Algorithm II (NSGA-II) and Multi-objective Self-Adaptive Ensemble Differential Evolution (jE_DEMO) algorithms are used. Finally both algorithms are capable to discover desirable set of design alternatives.
Citation - WoS: 43
Citation - Scopus: 46
Hue saturation lightness and building exterior preference: An empirical study in Turkey comparing architects' and nonarchitects' evaluative and cognitive judgments
(John Wiley & Sons Inc, 2008) Ebru Cubukcu; Ilker Kahraman; Cubukcu, Ebru; Kahraman, Ilker
This study investigated architects' and nonarchitects' evaluative and cognitive judgments of color on building exteriors. Thirty architects and 30 high school teachers living in Izmir Turkey participated in the study. The experiment had two phases. First participants viewed eight images in which the color of a building exterior was manipulated with hues selected from HSB (hue saturation and brightness) color space. Participants were then asked to rate each image on 7-point semantic differential scales measuring preference (like-dislike) arousal (arousing-sleepy) naturalness (natural-artificial) and relaxation (relaxing-distressing). Second participants viewed the same building in nine saturation and lightness levels for each hue and picked the most preferred lightness and saturation level for each hue. Findings showed that for a building exterior: (1) yellow and blue were the most liked colors (2) some hues were rated as more arousing more natural and more relaxing over the others (3) gender had an effect on color preference and semantic ratings of naturalness and relaxation (4) architects and nonarchitects differed in their color preference and semantic ratings of arousal and naturalness and (5) full bright and moderate to low saturated colors and full saturated and moderate to high bright colors were preferred more. The results have practical implications for architects and urban designers. A successful coloration of a building exterior may increase its use frequency and economical value. © 2008 Wiley Periodicals Inc. © 2008 Elsevier B.V. All rights reserved.
Integrated Building Design Approach: Turkish Case
(SPRINGER INTERNATIONAL PUBLISHING AG, 2018) Nilay Ozeler Kanan; Ilker Kahraman; Ash Karabacak; Arzuhan Burcu Gultekin; Karabacak, Ash; Gultekin, Arzuhan Burcu; Özeler Kanan, Nilay; Kanan, Nilay Ozeler; Kahraman, Ilker; S Firat; J Kinuthia; A AbuTair
In Turkey in terms of final energy consumption the building sector represents the second-largest energy consumer accounting for 36% of the total final energy consumption in 2008 and the building sector's emissions are 32% of the total national energy-related CO2 emissions. However the building sector presents significant opportunities for energy and CO2 savings estimated at 30-50% of the current levels. The total population of Turkey increased from 56.5 million in 1990 to 72.5 million by the end of 2009. Along with the increase of the population Turkey's urbanization rate increased from 52.9% in 1990 to 75.5% by the end of 2009. Between 2000 and 2010 despite two economic crises in 2001 and 2008-2009 the building stock grew around 8.1%. Such rates of increase underline the importance of energy-saving measures in the building sector. In order to find a solution Promoting Energy Efficiency in Buildings Project is being executed by General Directorate of Renewable Energy (YEGM). UNDP is the implementing agency of the Project which is financially supported by Global Environment Facility (GEF). The Ministry of Environment and Urbanization and Ministry of National Education are other partners. One of the most important output of this Project was Integrated Building Design Approach (IBDA) books which have been published with the help of 15 experts. These books are Adaptation Report Project Development Process and Implementation Guide Priorities and Objectives for Building Performance. This paper will give details about IBDA books and the focus on the methodology of Project Development Process and Implementation Guide.