Master Degree / Yüksek Lisans Tezleri

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  • Master Thesis
    Optimization of Energy Consumption and Thermal Comfort in Historic Buildings: Case Study of İzmir National Library Building, Türkiye
    (01. Izmir Institute of Technology, 2023) Özsavaşcı, Umut; Durmuş Arsan, Zeynep; Gökçen Akkurt, Gülden
    The 'library,' as a building type, is the visiting space of researchers and storage space of wisdom of past and present thinkers. Historic libraries host unique pieces of cultural heritage such as books, manuscripts, documents, maps, artifacts, paintings, sculptures, and frescos from the previous generations. The thesis aims to reduce energy consumption and improve occupants' comfort while paying attention to degradation risks of paper-based collections in the historic İzmir National Library Building, Türkiye. Thus, it examines building retrofit actions with different impact criteria and conducts the optimization tool to define the most optimal ones. First, three degradation risk assessment procedures were determined for the paper-based collections of the İzmir National Library Building. Within the scope of the thesis, the library building was monitored between 01.10.2016 - 01.10.2017. According to the results of the monitoring process, mechanical, chemical and biological degradation risk analyzes were carried out. The digital simulation model of İzmir National Library was prepared in DesignBuilder v. 7.0.0.102 software and calibrated monthly for a year via hourly air temperature data. Three retrofit optimization scenarios, i.e. neutral, low and high risk impact criteria, were defined by grouping different design variables such as glazing type, exterior door material, pitched roof floor construction, exterior wall construction, heating set point and cooling set point of HVAC system. The objective of optimization was reducing energy consumption and discomfort hours at the same time. The simulation results showed that all three retrofit actions reduced energy consumption and discomfort hours. Scenario 3 was the most successful among other scenarios, providing energy savings by 26.6% and reducing discomfort hours by 80.3%, according to the base case. Besides, there was no significant change in the degradation risk analyzes according to the base case.
  • Master Thesis
    Investigation of the Indoor Microclimate of Historic Agios Voukolos (aziz Vukolos) Church in İzmir To Determine and Imporve Thermal Comfort Conditions
    (Izmir Institute of Technology, 2022) Akın Yalçın, Damla; İpekoğlu, Başak
    The conservation of the historical building by improving the thermal comfort conditions contributes to the reuse of the buildings. Besides thermal improvement, the authentic values of the historical building should be taken into consideration. The aim of this thesis is to examine the effects of indoor microclimate characteristics of historic Agios Voukolos Church on the occupants and the wall paintings of the building, and to bring improvement suggestions that consider the values of the historical church by evaluating the thermal comfort conditions. The method of the study consists of on-site examination, on-site measurements of microclimate parameters, calculations and surveys. Air temperature, relative humidity, air velocity and mean radiant temperature measurements were conducted. In order to determine thermal comfort level, Predicted Mean Vote (PMV)–Predicted Percentage Dissatisfied (PPD) method developed by Fanger (1967, 1970) was used and survey studies were carried out during activities in winter. The threshold values specified in the ISO 7730:2005 and EN 16798-1:2019 standards were taken into account. According to the calculations, it was understood that the occupants felt warm in July and August, and cold in November through March. Survey study conducted in winter also confirmed that occupants are not satisfied with thermal comfort conditions. Additionally, respective UNI 10829:1999 standard and the decree published by the Italian Ministry of Culture in 2001 were used to determine the effect of indoor microclimate on wall paintings and ornaments. As a result, secondary glazing system, nighttime ventilation and radiant heaters were suggested for thermal improvement.