Asst. Prof.Dr. Nurdan Yıldırım Özcan Education Ph.D. Diploma M.Sc. Certificate B.S. Izmir Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering (October 2003 July 2010). Thesis: Modeling, Simulation and Optimization of Flashed-Steam Geothermal Power Plants From the Point of View of Noncondensable Gas Removal Systems. Post Graduate in Environmental and Applied Fluid Dynamics Department, Von Karman Institute for Fluid Dynamics (VKI), Rhode Saint Genese, Belgium (September 2004 July 2005). Izmir Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering (October 2000 September 2003). Thesis: District Heating System of the IZTECH Campus and Its Integration to the Existing System. Geothermal Utilization with the National Energy Authority, United Nations University Geothermal Training Programme, Reykjavik, Iceland (22 April - 11 October 2002) Dokuz Eylül University, Faculty of Engineering, Department of Mechanical Engineering (October 1995 June 1999). Thesis: Cogeneration in Industry. Experiences (March. 2014 Present ) (August 2010 Present ) (March 2010 March 2013 ) (Sep. 2011 February 2012 ) (November 2000 February 2010) Asst. Prof. Dr., Yaşar University, Faculty of Engineering, Department of Energy Sytems Engineering, İzmir Instructor of Economical Analyses Methods, Chamber of Mechanical Engineers, Izmir Branch, Courses of Energy Manager for Building and Industry, İzmir Project Manager, Megapol Elektrik Üretim A.Ş. Salhane İş Merkezi, Bayraklı-İzmir. Instructor of Thermodynamic Courses, Gediz University, Faculty of Engineering, Department of Mechanical Engineering and Industrial Engineering, İzmir Research Assistant, Izmir Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering, İzmir. Publications Journals 1. Yildirim, N., Toksoy, M., Gokcen, G., Piping network design of geothermal district heating systems: Case study for a university campus, Energy, Volume 35, Issue 8, Pages 3109-3516, 2010. 1
2. Yildirim Ozcan, N., Gokcen, G., Thermodynamic Assessment of Gas Removal Systems for Single Flash Geothermal Power Plants, Applied Thermal Engineering, Issue 29, Pages 3246-53, 2009. 3. Gokcen, G.,Yildirim, N., Effect of Non-Condensable Gases on Geothermal Power Plant Performance. Case Study: Kizildere Geothermal Power Plant-Turkey, International Journal of Exergy Volume 5, Issue 5-6, Pages 684-95, 2008. 4. Yildirim, N., Toksoy, M., Gokcen, G., District heating system design for a university campus, International Journal of Energy and Buildings, Volume 38, Issue9, Pages 1111-19, 2006. 5. Yildirim, N., Gokcen, G., Modelling of Low Temperature Geothermal District Heating Systems, International Journal of Green Energy, Volume 1, Number 3, Pages 365-79, 2004. Conference Papers 1. Yildirim Ozcan, N., Gokcen Akkurt, G., The Effects of Fluid Temperature on Geothermal Power Plant Design, Proceedings of the Climamed2011 (IV Mediterranaen Congress of Climazitation), Madrid, İspanya, (2-4 Haziran 2011). 2. Gokcen, G., Kuzgunkaya, E., Yildirim Ozcan, N., The Impact of Thermal Comfort on the Building Energy Consumption for Climatic Regions of Turkey, Proceedings of the 10th REHVA World Congress, Clima2010, Antalya, Turkey, (9-12 May, 2010). 3. Yildirim Ozcan, N., Gokcen, G., Performance Analysis of Single-Flash Geothermal Power Plants: Gas Removal Systems Point of View, Proceedings of the World Geothermal Congress-2010, Bali, Indonesia, (25-29 April, 2010). 4. Kuzgunkaya, E., Yildirim, N., Pre-Feasibility Study of a Swimming Pool Complex for a University Campus, Proceedings of the World Geothermal Congress-2010, Bali, Indonesia, (25-29 April, 2010). 5. Gokcen, G., Sofuoglu, A., Yilmaz, S., Yildirim Ozcan, N., Waste Water Disposal of Kizildere Geothermal Power Plant: Impact on the Great Menderes River Water Quality, Proceedings of the World Geothermal Congress-2010, Bali, Indonesia, (25-29 April, 2010). 6. Yildirim Ozcan, N., Gokcen, G., Jeotermal Elektrik Santralları ve Gaz Alma Sistemleri, Jeotermal Enerji Semineri TESKON 2009, İzmir, Turkey, (6-9 May 2009). 7. Gokcen, G., Yildirim Ozcan, N., Jeotermal Uygulamalar ve Çevresel Etki Değerlendirme (ÇED), Jeotermal Enerji Semineri TESKON 2009, İzmir, Turkey, (6-9 May 2009). 8. Yildirim Ozcan, N., Gokcen, G., Energy Analysis of Alternative Means of Removing Non- Condensable Gases from Single-Flash Geothermal Power Plants, Proceedings of the Fourth International Exergy, Energy and Environment Symposium (IEEES4), Sharjah, United Arab Emirates, (19-23 April 2009). 9. Gokcen, G., Yildirim Ozcan, N., Yoğuşmayan Gazların Jeotermal Santral Performansına Etkisi: Kızıldere Jeotermal Santralı, Jeotermal Enerjiden Elektrik Üretimi Semineri, TESKON 2007, İzmir, Turkey, (25-28 October 2007). 10. Gokcen, G., Yildirim, N., Effect of Non-Condensable Gases on geothermal power plant performance. Case study: Kizildere Geothermal Power Plant-Turkey, Proceedings of the Third International Exergy, Energy and Environment Symposium (IEEES3), Évora, Portugal, (1-5 July 2007). 2
11. Yildirim, N., Gokcen, G., Heat Load Factor for Geotermal District Heating System Design, Proceedings of the 19th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS2006), Girit, Yunanistan (12-14 July 2006). 12. Yildirim, N., Gokcen, G., Toksoy, M., Design of a district heating system for Iztech Campus, Turkey, III. Ege Enerji Sempozyumu, Muğla Ünv. Muğla, Turkey (24-26 May 2006). 13. Yildirim, N., Gokcen, G., Toksoy, M., Piping Network Design for IZTECH Campus Geothermal District Heating System, Izmir Turkey, Proceedings of the World Geothermal Congress-2005, Antalya, Türkiye (24-29 April 2005). 14. Yildirim, N., Gokcen, G., Toksoy, M., Low Temperature Geothermal District Heating System Design. Case Study: IZTECH Campus, Izmir, Turkey. Proceedings of the World Geothermal Congress-2005, Antalya, Türkiye (24-29 April 2005). 15. Yildirim, N., Gokcen, G., Modelling of Low Temperature Geothermal District Heating Systems. Proceedings of the First International Exergy, Energy and Environment Symposium (IEEES-1), Izmir, Turkey (13 17 July 2003). CD ROM. Izmir: 2003. 879-85. Contributions to Books 1. Modelling of District Heating System for IZTECH Campus, Turkey. In L.S. Georgsson (Ed.), Geothermal Training in Iceland 2002, Reports of the United Nations University Geothermal Training Programme, 2002. Reykjavik, 2002. 359-93. Seminars Attended as Speaker, Lecturer and Chairperson 1. Ekonomik Analiz Yöntemleri (Economical Analysis Methods), Course of Energy Manager for Industry, Chamber of Mechanical Engineers, İzmir Branch, 24 September, 2010 (as a lecturer). 2. Ekonomik Analiz Yöntemleri (Economical Analysis Methods), Course of Energy Manager for Buildings, Chamber of Mechanical Engineers, İzmir Branch, 25 August, 2010 (as a lecturer). 3. Section 8J: Energy Pricing and Policies. World Geothermal Congress-2010, Bali, Indonesia, 25-29 April, 2010 (as a chairperson). 4. Geothermal Energy and Its Applications in Turkey. RENET (International Renewable Energy Conference (IREC)) Conference, Bogazici University, 20 November 2009 (as an invited speaker). Conferences & Seminars Organised 1. Organization committee member of the Oradea, Romanyadaki Jeotermal Enerji Uygulamaları Yaz Okulu (ESGEA) Hakkında İzlenimler [Impression of European Summer School on Geothermal Energy Applications (ESGEA), Oradea, Romania], Balçova Thermal Hotel, Izmir, 6 July 2001. 3
Fellowships NATO Fellowship for diploma course of Von Karman Institute for Fluid Dynamics (VKI) at Environmental and Applied Fluid Dynamics Department, Rhode Saint Genese, Belgium (September 2004 July 2005). United Nations University Fellowship for study of Geothermal Utilization with the National Energy Authority, Iceland, United Nations University Geothermal Training Program, Reykjavik, Iceland (22 April - 11 October 2002). Research Experience 1. Practicum in Balçova Geothermal Energy Production and Trading Corporation, Izmir, Turkey. Research and practicum in Balçova Narlıdere Geothermal District Heating Systems, July August 2001. 2. Practicum in MERLONI Elettrodomestici Factory, Manisa, Turkey. Organization Intern, August 1998. 3. Practicum in TEBA Ente Factory, Torbalı, Izmir, Turkey. Production Intern, August 1997. 4. Practicum in Mithatpaşa Vocational School of Industry, Konak, Izmir, Turkey. Production Intern, July 1996 Courses Assisted (Izmir Institute of Technology): Graduate Level Courses in the Department of Mechanical Engineering ME 507 Analytical Techniques in Materials Science Study of the mechanical, thermomechanical, physical and microstructural characterisation of materials. Materials system include metals, ceramics, polymers, composites and surfaces and interfaces in these systems. Applications to mechanical property characterisation. Fracture and fractography. Surfaces and interfaces. Dynamic mechanical analysis of polymeric materials. Optic and scanning electron microscopy. Polymer molecular structure determination and durability experiments. ME 521 Advanced Thermodynamics Thermodynamic relations. Mixtures and solutions. Gas Mixtures. Chemical reactions. Introduction to phase and chemical equilibrium. Quantum Mechanics. Molecular Distributions and Models. Statistical Mechanics and Thermodynamics. Applications of Statistical Thermodynamics. ME 545 Direct Use of Geothermal Energy Introduction to geothermal energy. Geothermal direct use applications in the world. Space heating equipment and space heating systems. Heat exchangers, downhole heat exchangers, piping. Geothermal greenhouse design. Aquaculture. Refrigeration. Industrial usage. Groundsource heat pumps. Environmental considerations. Field trips. Design project. 4
Undergraduate Level Courses in the Department of Mechanical Engineering ME 202 Fluid Mechanics I Introduction Fluid statics.kinematics of flow.continuity Equation.Bernoulli s Equations.Viscous Flow Equations.Head Loss in Ducts and Piping Systems.Momentum Theorems.Dimensional Analysis and Similitude.Potential Flow,Circulation and Vorticity. ME 303 Fluid Mechanics II Potential flow theory. Boundary layer theory. Turbomachinary. Introduction to compressible fluid flow. ME 206 Thermodynamics I Properties of a Pure Substance. Equations of State for Fluids and Solids. Work, Heat. First Law of Thermodynamics for Closed and Open Systems. Second Law of Thermodynamics, Carnot Cycle, Entropy, Irreversibility and Availability. ME 307 Thermodynamics II Vapor power and gas cycles, refrigeration cycles, thermodynamic relations, mixtures of gases, air conditioning, gas mixtures. ME 432 Introduction to Geothermal Energy Introduction to geothermal energy. The use of geothermal energy. Electricity generation. Direct use applications: space and district heating, space cooling, greenhouse heating, heat pumps, aquaculture, industrial applications. Environmental impacts of geothermal applications. Geothermal laws. Field trips to a geothermal power plant and some geothermal direcr use applications. Term project International Projects 1. Simulation of surface instability of a liquid pool subjected to a shear flow (by Nurdan Yildirim). The project has been done at Environmental and Applied Fluid Dynamics Department of Von Karman Institute for Fluid Dynamics (VKI) Rhode Saint Genese, Belgium in 2005, supervised by Prof. Dr. Jean-Marie Buchlin and Prof. Dr. Carlo Benocci. Abstract: In this theoretical and numerical project, the physical mechanisms leading to the production of surface waves generated at the interface of two fluids (liquid/gas or liquid/liquid) are investigated. A particular attention is devoted to the Kelvin-Helmholtz type instability appearing in the area of high shear located at the fluid-fluid interface. The subsequent disturbances in velocity and pressure associated with the wave motion are assumed 2D and sufficiently small to justify the linearization of the equations of the motion. Navier- Stokes, Orr-Sommerfeld, Kelvin-Helmholtz Darcy (KHD) equations are mainly considered to investigate the surface instability. During the project, the main characteristics of surface instability such as wavelength, amplitude, wave speed and growth rate are investigated according to various physical parameters (density, surface tension, dynamic viscosity) of the fluids. The effect of the gravity is analysed through 2D simulations configurations of horizontal flow as well as vertical coand counter flow configurations. FFT analysis is providing the values of the dominant frequency and wavelength. This last quantity is compared when the fluids are in the linear instability regime with KHD theory. In spite of difficulties to extract the FFT contents, the results are matching well with the theory for horizontal case. Prediction of the unstable region characteristics is possible with this 5
methodology together with the correct prediction of the transition of the waves from linear to non-linear regime. For vertical flow, the representation of the gravity field with the periodic assumption is presenting a numerical difficulty to keep a constant mass flow rate for each individual phase. 2. Modelling of District Heating System for IZTECH Campus, Turkey (by Nurdan Yildirim). The project has been done at Geothermal Training Program of United Nations University, Reykjavik-Iceland in 2002, supervised by Prof. Dr. Páll Valdimarsson (University of Iceland). Abstract: The aim of this work is to determine best heating system for Izmir Institute of Technology (IZTECH) Campus. IZTECH, founded in 1992, is the third university of Izmir, the third largest city in Turkey. IZTECH campus has individual fuel boiler heating systems for each faculty building since its foundation and the campus is still under development. In this project three different district heating systems were studied and compared, using two different heating strategies, intermittent and semi-intermittent heating. Mathematical models were derived with programs using Matlab and EES (Engineering Equation Solver) written and run using hourly weather data. In all, 50 heating alternatives with different parameters were studied to determine the best heating system. The performance of these alternatives was studied, regarding efficiency and estimated indoor temperature, and recommendations are made. Besides heating system simulations, a network simulation was made using the software Pipelab, which uses the Matlab program as a basis. National Projects Türkiye'nin Farklı İklim Koşullarında Isıl Konfor Sıcaklıklarına Bağlı Olarak Konutların Enerji Performanslarının Değerlendirilmesi (by Gulden Gokcen, Ebru Kuzgunkaya, Nurdan Yildirim). (The Impact of Thermal Comfort on the Building Energy Consumption for ClimaticRegions of Turkey). This project was funded by Turkish Society of HVAC and Sanitary Engineers (TTMD) during 2008-2010 and presented 10th REHVA World Congress, Clima2010, Antalya, Turkey, (9-12 May, 2010). Abstract:Turkey is revising its legislations on building energy performance as foreseen in EPBD (2002/92/EC), through the European Union accession process. Therefore, there has been a growing interest in the evaluation of the heating/cooling energy consumption for buildings. The assessment of the energy consumption for the climatic control of a building can only be dealt with if the level of the indoor comfort is clearly defined. Since energy consumption for heating/cooling is directly affected by the required level of thermal comfort, the study aims to investigate the relationship between thermal comfort and energy consumption of the residential buildings for different climatic regions of Turkey. Once a range of required acceptable indoor operative temperatures had been fixed in accordance with Fanger s theory, the monthly averages of hourly comfort conditions and the energy consumptions were estimated through dynamic simulations for continues and intermittent operating modes. Türkiye de Gerçekleştirilen Jeotermal Enerji Projelerinin Temiz Enerji Bağlamında Değerlendirilmesi: Balçova Jeotermal Bölgesel Isıtma Sistemi-İzmir ve Kızıldere Jeotermal Santralı-Denizli (Project coordinator: Gülden GÖKÇEN, Project team: 6
Aysun Çakan SOFUOĞLU, Ali Fazıl YENİDÜNYA, İhsan YAŞA, Ahmet E. EROĞLU, Semahat ÖZDEMİR, Şebnem ELÇİ). (Evaluation of Geothermal Energy Projects in Turkey in the Context of the Clean Energy Assessment: Balcova Geothermal District Heating System-Izmir and Kizildere Geothermal Power Plant-Denizli). This project was funded by TUBITAK. Chapter 2 ( (Jeotermal Uygulamaların Çevresel Etkileri (Environmental Impacts of Geothermal Applications)) and Chapter 9 (Çevresel Etki Değerlendirme (Environmental Impact Assessment)) were prepared by Nurdan Yildirim in 2008. Abstract: Geothermal energy applications either electricity generation or heating have positive and negative physical, chemical, biological and social-economical effects on the environment. To present these effects with an example Kızıldere Geothermal Power Plant and Balcova Geothermal District Heating System are chosen as the main application areas of geothermal energy. The aim of the project is to assess the environmental impacts of both applications. Depending on their source temperature and the process, the impacts exhibit difference. The result of data acquisition, chemical analysis and measurements gives us the pollution potential of both applications. Environmental effects, especially at geothermal power plants which use high temperature geothermal fluids, can be reduced by applying Environmental Impact Assessment at design stage and/or can be avoided by a careful project management at operation stage. Depending on pollution potential, during the application and operational stage of the projects, the necessity of Environmental Impact Assessment process is emphasised. Workshops Attended and Certificates Received Course in Energy Management, conducted by Izmir Economy University, Izmir, Turkey, 2010 (Certificate). Course in Air-Conditioning, conducted by Center of Profession Education in Chamber of Mechanical Engineers, Izmir Branch, Turkey, 2007 (Professional Engineer Certificate). Course in Ventilating, conducted by Center of Profession Education in Chamber of Mechanical Engineers, Izmir Branch, Turkey, 2007 (Professional Engineer Certificate). Course in Refrigerating, conducted by Center of Profession Education in Chamber of Mechanical Engineers, Izmir Branch, Turkey, 2007 (Professional Engineer Certificate). Course in Heating, Sanitary and Heat Insulation, conducted by Center of Profession Education in Chamber of Mechanical Engineers, Izmir Branch, Turkey, 2007 (Professional Engineer Certificate). Energy Manager for Industry, General Directorate of Electrical Power Resources Survey and Development Administration, Ankara, 31 January 2006 (Professional Engineer Certificate). Short Course on Exergy Analysis of Advanced Energy Systems, conducted by Ebiltem, Ege University, Bornova, Izmir, 12-14 December 2005, (Certificate). 7
Course in Application and Design Projects of Natural Gas, conducted by The Chamber of Mechanical Engineering, Izmir Branch, Turkey, 31 January-02 February 2003 (Professional Engineer Certificate). National Hydraulic and Pneumatic Convention and Exhibition, Izmir, Turkey 8 11 November 2001 (Certificate ). Direct Heating Systems with Geothermal Energy: Basics and Design: Course of National HVAC and Sanitary Convention and Exhibition, Izmir, Turkey 3 4 October 2001 (Certificate). Fuel Cell Technology Introduction & Field Applications, conducted by Ebiltem, Ege University, Bornova, Izmir, Turkey, 4 June 2001, (Certificate). European Summer School on Geothermal Energy Applications (ESGEA), Oradea, Romania, 26 April-05 May 2001, (Certificate). AutoCAD 2000, conducted by Chamber of Mechanical Engineers, Izmir, Turkey, 18 July-25 August 2000, (Certificate). Technical Excursions Technical excursion of Alacati Wind Farm, Cesme, Izmir, Turkey. It was the organization of Renewable Energy Sources Work Group in Chamber of Mechanical Engineering, İzmir Branch, July 2010. Technical excursion of Kizildere Geothermal Power Plant, Denizli, Turkey, About Ph.D. Thesis, two times, 2006, 2008. Technical excursion of Dora-1 Geothermal Power Plant, Aydın, Turkey, About Ph.D. Thesis, two times, 2005, 2008. Technical excursion for main geothermal fields under exploration and utilization in Iceland, Iceland. This is the organization of United Nations University Geothermal Training Program, July 2002. Technical excursion for main geothermal fields under exploration and utilization in Oredea, Romania. This is the organization of International Geothermal Training Center of the University of Oradea, May 2001. Technical excursion for Balçova Narlıdere District Heating Systems in Izmir, Turkey. It was the organization of Department of Mechanical Engineering, Izmir Institute of Technology, April 2001. Organized Field Trips Technical Excursion to Bozcaada Wind Farm, Çanakkale, Turkey. It was the organization of Department of Mechanical Engineering, Izmir Institute of Technology and I was a member of organization committee, May 2001. 8
Geothermal Power Plant in Kizildere, Denizli, Turkey. It was the organization of the Geothermal Energy Research Development Test and Education Center of Izmir Institute of Technology and I was a member of organization committee, March, 2002. Professional Memberships Turkish Chamber of Mechanical Engineers, Izmir Chapter, since February 2000. Turkish Society of Heating, Ventilation, Air-Conditioning & Sanitary Engineers, (Student Member), since 2000. Computer Skills Windows Office Programs (Word, Excel, Power Point, Front Page); AutoCad 2000; Matlab; EES; MathCad; Pipelab; Quick Basic, Gambit, Fluent, Design Builder. 9