Phd Degree / Doktora
Permanent URI for this collectionhttps://hdl.handle.net/11147/2869
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Doctoral Thesis Thermal Retrofitting on Traditional Building With Exterior Hall (sofa): Urban and Rural Houses of Muğla(Izmir Institute of Technology, 2019) Timur, Barış Ali; İpekoğlu, Başak; Başaran, TahsinSustaining functional continuity of historical buildings is a commonly acknowledged conservation strategy and thermal retrofitting interventions applied on these buildings has complemental potentials to this strategy as these interventions can be designed to increase the thermal satisfaction of occupants. The aim of this thesis is to examine the thermal behavior of a common historical building type in Anatolia, the traditional houses with exterior hall, and to determine enhancement potentials of possible thermal interventions which will not cause loss of heritage values. Method of the study consists of on-site thermal measurements and transient thermal analysis of case studies utilizing the software DesignBuilder. Case studies were selected from both urban and rural sub-settlements of Muğla City in order to detect possible effects of prevailing microclimates. With the results obtained, it was demonstrated the retrofitting interventions of thermal insulation works in roofs and floors between storeys, airtightness measures, addition of secondary glazing to window frames and the addition of closed circulation corridors provide significant improvements in thermal performance of the cases. According to simulation analyses, it was specified that these interventions would save 38.0% of the total building energy use in the urban and 49.4% in the rural subsettlements. These improvement percentages can even be increased to more than 80% when the integration of a new HVAC system such as ground-source heat pump is implemented. Consequently, it was determined the traditional houses with exterior hall have significant potentials for thermal enhancements which renders the application of thermal interventions as a capable conservation strategy.Doctoral Thesis Development of Energy-Efficient Personalized Thermal Comfort Driven Control in Hvac Systems(Izmir Institute of Technology, 2018) Turhan, Cihan; Gökçen Akkurt, Gülden; Simani, SilvioIncreasing thermal comfort and reducing energy consumption are two main objectives of advanced HVAC control systems. Studies conducted in the last decade show that intelligent HVAC systems can geatly affect thermal comfort, health, satisfaction, and productivity of building occupants while decreasing the energey consumption. Also, personelized thermal comfort driven control of the HVAC systems is the most effective way of saving energy and maintaining thermal comfort. In this thesis, an energy-efficient personalized thermal comfort control algorithm is developed to improve HVAC control systems. The thesis presents a complete system to control algorithm which includes the deployment of wireless sensor network. First a novel control algorithm is developed to perceived comfort conditions of occupants and to save energy. Then, a prototype of the personalized thermal comfort driven controller (PTC-DC) is manufactured an tested in a case building at İzmir Institute of Technology Campus, İzmir/Turkey. The proposed control strategy is tested betwen July 3rd, 2017 and November 1st, 2018, and compared with conventional controller in terms of energey saving and boath energetic and exergetic approaches of thermal comfort. The results showed that PTC-DC satisfies neutral thermal comfort for 92% of total measurements days while AM=0 for only 6% of total measurement days for conventional controller. From energy consumption point of wiev, PTC-DC decreased energy consumption by 13.2% compared to conventional controller.