Browsing by Author "Harputlugil, G.U."

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Citation - Scopus: 0
Analysis of Condensation Risk in a Wall Section in the Context of Climate Change Scenarios
(Horizon Research Publishing, 2024) Saricioglu, P.; Aycam, İ.; Harputlugil, G.U.
The effects of climate change can be seen in many areas. Although there are many causes of climate change (changes in solar radiation, differences in the Earth’s orbit, continental shifts and changes in the atmosphere), one of the most noticeable causes in the 21st century is anthropogenic effects. One area where these impacts can be seen is the construction sector in buildings and building façades. Climate change will change assumptions about façade design in the coming decades. For this reason, it is important to develop climate change projections for existing and new buildings. For this purpose, the literature has three basic climate models. Therefore, the aim of this study is to compare the condensation risk for a wall section in a city with a humid-temperate climate (Zonguldak, Turkey) using HadGEM, MPI and GFDL climate models according to RCP8.5 scenario data for the historical period 2015 and the future year 2081. Within the scope of the study, the average temperatures and relative humidity values were obtained from GDM (General Directorate of Meteorology) by choosing 2081 and 2015, which are frequently used in climate change studies based on the literature. In the method, the projection results for the historical and future periods were compared and became the basis for the next stage. In the next step, based on the literature, the condensation control in the wall section was compared for the past and future using the Glaser method, which is frequently used in condensation control in wall sections and included in the TS 825 standard created for Turkey, which corresponds to EN ISO 13788 and DIN 4108 standards. According to the results, the humidity and temperature fluctuations in the future period and increase in averages are important problems that need to be addressed in detail in façade design and the impact of condensation risk. Therefore, according to the condensation control calculations made in the wall section detail, condensation risk occurs in the future period. Consequently, assumptions in façade design will need to change for existing and future buildings to accommodate condensation risk. © 2024 by authors, all rights reserved.
Citation - Scopus: 2
Assessing the Reliability of Turkish Building Energy Performance Tool (Bep-Tr2) By Case Tests
(EDP Sciences, 2019) Harputlugil, G.U.; Zeki Yilmazoglu, M.; Unlu, G.; 40295
This paper aims to draw a general picture of the simplified software for calculation building energy performance based on Turkish Regulations called BEP-tr.v2, which was released at the end of 2017. Even the tool has a simplified calculation methodology, the discussion in this paper is going to be focused on assessing the accuracy of the tool by test cases. The assessing procedure for the tool has two steps. In the first step, box type cases are analyzed, and the results are compared with the results of a detailed energy simulation tool (BES) to perceive the percentage of deviations. In the second step, a current building is selected to use as a test case. The model results are compared with the real consumptions of the building to see the convergence rate of the tool (Bep-TR2). The results showed that the net energy calculation procedure of the methodology needs to be improved. © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0
Citation - Scopus: 0
Re-thinking of energy consumption classification by the patterns of occupant behaviour in dwellings: A conceptual framework
(Free University of Bozen Bolzano, 2015) Harputlugil, G.U.; Harputlugil, Timuçin; Harputlugil, T.; 40295; 36110; Mimarlık
The aim of this paper is to present the conceptual framework of a TUBİTAK funded project titled "Developing a New Methodology to Improve Housing Quality in Turkey Based on Effects of Occupant Behavior on Energy and Comfort of the Dwellings". Although the objective of the project is the development of new methodologies and tools to be used for the definition of effects of behavior profiles of housing occupants on the energy consumption and usage of this knowledge for building new houses and renovation of existing buildings, here the first step of research has been executed. By defining sensitivity of occupant behavior on energy consumption, it is planned to classify different models of occupant behavior. With data provided, the aim is to develop an "occupant behavior labeling" which rates occupants instead of buildings. To provide the mentioned data, sensitivity analysis of existing occupant behavior will be analysed based on the Monte Carlo Methodology. This methodology is one of the most used methodologies to analyse accurate distribution of possible outputs relied on inputs based on probability. Inputs for this research are (1) number of occupants for each space (for weekdays and weekend) (2) behaviour for ventilation (Window open/closed and mechanical ventilation on/off) (3) control of heating systems (radiator on/off and/or thermostat degree). These data will be provided with survey and data logging of chosen a house occupant group. As a consequence of the research, the aim is not only to rate the behavior of housing occupants but also determine occupancy groups/labels. With this approach, based on occupant's behavior labeling, the aim is to realize fast and affective applications for renovation of existing buildings. Moreover, by evaluation/assessment of houses which will be designed in the future based on determined occupant profiles allow to produce high performance dwellings. © 2015 by Bozen-Bolzano University Press Free University of Bozen-Bolzano All rights reserved.
Citation - Scopus: 0
Rethinking Natural Ventilation Strategies in Buildings through Simulation
(International Building Performance Simulation Association, 2023) Coşar, M.; Harputlugil, G.U.; De Wilde, P.; 36110
Natural ventilation using passive approaches can increase indoor air quality without the need for mechanical systems. In the paper, mechanical ventilation has been ignored due to the associated energy use and greenhouse gas emissions. Instead, the study focusses on natural ventilation that can be created with architectural solutions. Specifically, the indoor air quality of a typical office building in Ankara, Türkiye was determined based on measurements, a building occupant survey, and the natural ventilation conditions as well as design alternatives were analysed by modelling and simulating the building using Autodesk CFD. From the simulation results, it was understood that current form of windows were not found suitable for effective and sufficient natural ventilation. As a result, not only design strategies that will increase the natural ventilation potential are put forward, but also strategies for façade elements have been produced in means of wind catchers. © 2023 IBPSA.All rights reserved.