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Assessing the Service Quality of Intelligent Building Control Systems: an Importance-Performance Analysis
(Izmir Institute of Technology, 2015) Kahraman, Nil; Doğan, Sevgi Zeynep
Recently, control systems are being integrated to an increasing number of buildings, which are then labeled as “intelligent”. Even though the intelligence label creates a considerable market share, intelligence-indicator building control systems are under-researched in terms of the expectations of customers. This thesis analyzes customer satisfaction for intelligent building control systems by assessing expected and perceived service levels that reveals service quality. In order to achieve this, two web-based surveys inquiring both the importance and the performance levels of control systems were conducted. The collected data were then analyzed by a customer gap analysis depending on an importance-performance analysis. Among the seven control systems investigated, building automation system is found to be the most important intelligent control system integrated to a building. Yet, it is also found to be one of the underperforming control systems investigated. Thus, the largest customer gap indicating the lowest service quality is defined for building automation system towards which managerial effort and concentration should be directed urgently for proper improvement purposes. Heating, ventilating and air conditioning system shows the second largest customer gap that constitutes the second highest priority. Although, vertical transportation system is found to be one of the most under-performing control systems, since it is also found to be the least important intelligent control system, it has the lowest customer gap, which indicates low-priority. The findings of the thesis could be of help to develop effective strategies for the management policies of construction and building automation companies.
Development of Intelligent Buildings and Their Impacts on Architecture in Turkey
(Izmir Institute of Technology, 2002) Zağpus, Selin; Günaydın, Hüsnü Murat
Related to every period.s life conditions the community.s needs show differences. Today.s people giving prior importance to business life and depending on this priority and the incoming intense, active life flow bring up the need of .facilitating life. and again one of the most main problems in today.s life described as energy loss is reduced by designing .energy conscious. buildings. At this point of view, developing technologic and construction sector take on the roles as two important inputs to help design concept. Considerably the technological developments that took place with .Industrial Revolution. started the use of machine power, created new bazaars and new work areas, and brought up the creation of new life styles with itself. With these points, this process came across the new trends in architecture and construction. Spreading use of information technologies, make differences in expectations about daily life standards. As men can adapt the changing needs and obtain maximum suitability, need buildings with minimum cost for usage and upkeep. The main aim of the buildings described as .intelligent buildings. is use of minimum energy and besides to obtain system works and comfort at an optimal level. To be considered as intelligent, building must; With these points, besides the advantages that intelligent buildings bring up, they can cause important problems to take place. With their electrical infrastructure they may cause the inhabitants to be abstracted from the outer life, and with respect the people working in multi-storey buildings have health problems like .building syndrome. or because of the computer aided structure of these buildings .accessibility. problems can occur. These problems come in the first places on the problems rank. In the solutions of the problems occurring by intensive use and by the way increasing demands, at the point architectural solutions become insufficient electro-mechanical systems join. For providing high life standards complete for today and tomorrow.s life, the buildings which are designed bye using series of technological solutions, are composed of the integration of these systems. All these developments, different than the conventional design process, need the information flow with the other science branches -interdisciplinary approach-. A building to be formed as intelligent by .architectural concepts., with a large proportion is related to the .architect.s intelligence.. In these terms architect must be following all new developments in technology. In other ways, intelligent buildings will be the buildings designed by engineers. Nearly in the past ten years, intelligent building applications are also seen in our country. But whether the lack of investigation about the abroad works or these buildings participated in our lives with the unnecessary ambition of consumption, so with these facts intelligent buildings cannot deserve their attribute. To state that a building is totally intelligent, from the design process, the project must be taken up as a total work with the sub-systems providing central supervision and administrating. But the approach in our country sees the sufficiency as a building that owns one of the named systems or any residence full of intelligent house products. Of course these terms are not enough for intelligence. As a result, this work examines the approach to the subject in our country by evaluating sub-systems of intelligent building concept, design criteria, the advantages and disadvantages of these buildings, and the degree of intelligence. Key words: intelligent building, building automation system, office automation system, telecommunications system, information technology, and energy conscious buildings.
Optimization of Hvac Control Strategies by Building Management Systems Case Study: Özdilek Shopping Center
(Izmir Institute of Technology, 2003) Canbay, Çağlar Selçuk; Gökçen Akkurt, Gülden
HVAC systems in buildings must be complemented with a good control scheme to maintain comfort under any load conditions. Efficient HVAC control is often the most costeffective option to improve the energy efficiency of a building. However, HVAC processes are nonlinear, and characteristics change on a seasonal basis so the effect of changing the control strategy is usually difficult to predict.Aim of this thesis is to reduce energy consumptions by defining new HVAC control strategies and tuning control loops in Ozdilek Shopping Center "OSC". To investigate the potential for energy savings and to redefine control scenarios, an energy audit was carried out in "OSC". According to these studies new strategies are implemented by the help of existing building management system "BMS" without making any investment.Performance indices were calculated and compared with the accepted standards. Then normalized performance indices are calculated to reach out a better understanding of the buildings' efficiency.

Master Degree / Yüksek Lisans Tezleri

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