Master Degree / Yüksek Lisans Tezleri
Permanent URI for this collectionhttps://hdl.handle.net/11147/3008
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Master Thesis The Reasons and Suggested Solutions of Underdevelopment of Thermal Tourism in Turkey(Izmir Institute of Technology, 2007) Dal, Feryal; Dedekorkut, Ayşin; 01. Izmir Institute of TechnologyThe main aim of this study is to find out the ways to use geothermal resources efficiently in the thermal tourism sector within the planning perspective. This thesis research has been conducted considering the related issues about thermal tourism such as national and global thermal tourism market assessments, the reasons of underdevelopment of thermal tourism in Turkey, and objectives of thermal tourism planning. In the analysis section, five thermal tourism centers licensed by the Ministry of Culture and Tourism are evaluated according to the technical, physical, and economic feasibility measures and the reasons of underdevelopment of thermal tourism are determined in the cases. In conclusion, the study tries to suggest some solutions to improve thermal tourism sector from the planning discipline.s perspective.Master Thesis Effect of High Saline Geothermal Fluid on Soil and Surface Water: a Case Study From Tuzla, Çanakkale-Turkey(Izmir Institute of Technology, 2013) Katırcıoğlu, Gamze; Baba, Alper; Baba, Alper; 03.03. Department of Civil Engineering; 03. Faculty of Engineering; 01. Izmir Institute of TechnologyGeothermal energy can be defined as a heat from core of Earth and utilized for power generation, district heating and greenhouse. Use of geothermal energy has low environmental impact, particularly when compared with fossil fuels. However, geothermal fluid has some adverse effects for environment for instance contamination of surface water and soil. Examples of these effects occur in different parts of world. The objective of this study is to evaluate the effect of geothermal fluid particularly on surface water and soil in Tuzla Geothermal Field (TGF) where is located on Biga Peninsula, in the northwestern of Anatolia. TGF is 5 km far from Aegean Sea and 80 km south of Çanakkale. Geothermal fluid of TGF has high salinity (EC > 91 mS/cm) and high temperature (reservoir temperature is 173 °C). Water samples were taken from February 2012 to April 2013 to determine the physical and chemical (major anioncations and heavy metals) properties of the surface water quality. Furthermore, the soil samples analyzed for physical and chemical properties. All data were evaluated with ArcGIS 10.1 and Aquachem 4.0 software. The results showed that the levels of some major element such as Lityum (4-7 ppm), Barium (1-4 ppm) and Manganese (1-5 ppm) and some heavy metals such as Boron (> 13 ppm) and Strontium (> 14 ppm) in surface water, exceeded national and international limits. Boron and Strontium values of creek ranged from 13 to 27 ppm and from 14 to 154 ppm, respectively. Soil samples contain high concentration of Silisium (> 23800 mg/kg) and Aluminum (> 9000 mg/kg). Particularly, the uncontrolled discharge of geothermal fluid that is rich in terms of toxic elements into soil and surface water resources of the area influences other potential uses of these resources.Master Thesis Optimisation Of Balçova-narlıdere Geothermal District Heating System(Izmir Institute of Technology, 2003) Şener, Adil Caner; Gökçen Akkurt, Gülden; Gökçen Akkurt, Gülden; 03.06. Department of Energy Systems Engineering; 03. Faculty of Engineering; 01. Izmir Institute of TechnologyThe main goal of this study is to determine optimum control strategy of Balçova-Narlıdere geothermal district heating system to minimise the energy consumption. First heat demand model of the system was constructed by using statistical method called time series analysis. This model provides the heat demand forecast of next day, by considering ambient temperature forecast of the next day. Then geothermal pipeline system and city distribution system have been modelled in the PIPELAB district heating simulation program. To model the system close to the actual case, database of Balçova geothermal company was used as an input, and the code of PIPELAB program was adapted to be used in geothermal pipeline system. Once the sysem was modelled in PIPELAB, it would be possible to obtain pressure and temperature distribution along the pipe networks in the system. To determine the optimum operation strategy of the wells according to the changing heat demand first the energy consumption of each well pump was defined as a function of their heat production rate. Then these functions were inserted into dynamic programming algorithm which selects the optimum well operation strategy among thousands of options. Also power consumption models of circulation pumps were built and calibrated with actual values. Finally optimum control strategy for the system was determined and the system model was operated by using optimum control strategy according to ambient temperature data of 2001 and 2002. The acual energy consumption values were compared with the optimum energy consumption values and decisive factors in efficient control and operation of the system have been defined.Master Thesis Financial Evaluation Of Kızıldere Geothermal Power Plant(Izmir Institute of Technology, 2010) Konyalı, Ayşe; Özkol, Ünver; Özkol, Ünver; 03.10. Department of Mechanical Engineering; 03. Faculty of Engineering; 01. Izmir Institute of TechnologyA capacity increase is of concern in the Kızıldere Geothermal Power Plant-the first geothermal plant in Turkey. In this study, the feasibility of possible future investments in Kızıldere has been analyzed financially using methods such as internal rate of return, net present value, payback and benefit-cost. Two scenarios with different financial structures have been formed and both scenarios have been applied to 20MW, 40 MW, and 60 MW power plants. The choice among different alternatives has been made according to the unit energy cost, which is a significant parameter in power plants. The first scenario represents a government project which establishes the project finance on a debt ratio of 75%. The debt term has been taken as 12 years and the debt interest rate as 7%. In this scenario, unit energy cost has been estimated as 4,33 cent/kWh for 20 MW, 4,10 cent/kWh for 40 MW and finally 3,88 cent/kwh for 60 MW. The second scenario represents a private project with a debt ratio of 50%, where the debt term is 8 years and the debt interest rate is taken as 5%. As for the unit energy cost for this particular scenario, it has been estimated as 3.8 cent/ kWh, 3.59 cent/kWh and 3.40 cent/kWh for 20 MW, 40 MW and 60 MW respectively. Kızıldere geothermal Plant has been financially evaluated in this study and it has been concluded that although both scenarios are feasible, the best alternative is 60MW private project.