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In this study, a PV/Wind hybrid power generation system was studied with using meteorological data of Bursa province. Two specific years (2011, 2014) were chosen for the dynamic simulations. The designed hybrid system consists of PV panels and a wind turbine. The outcome of the study shows that with the proposed 1 MW PV + 2 MW wind turbine system, it is possible to generate enough electricity to compensate the annual electricity requirement of 450 households which can be considered as a small district area. Levelized cost of energy is found a value between $ 0.413-0.568/kWh. PBP of the system is found a value around 20 years. It was concluded that it is essential to offer adequate incentives for renewable-based power applications to make them economically beneficial.

In this study, the IR heated stress relieve oven was experimentally and theoretically examined. In experimental measurements, temperature was measured on headlight surface, placed in IR oven at various conveyor speeds and various distances between IR lamps and headlight surface. In theoretical study, a mathematical model was developed for the headlights surface temperature by using heat transfer theory. The results obtained by the mathematical model and the measurement showed very good agreement with a 6.5 % average error. It is shown that mathematical models can be used to estimate the surface temperatures when the oven is operated under different conditions.

In recent years, the world's energy requirement has shown a significant increase. Accordingly, there is a growing interest in scientific researching of clean and sustainable energy resources. The existing of energy resource alone is not enough but also the energy resource parameters such as capacity, adaptation to the environment, economical factors and continuity have to be considered. The concepts of “sustainability” and “renewable” are gaining importance considering these parameters. In this study, firstly the sustainability tools availability in literature is expressed in general. We tried to explain the sustainability tools based on indicators and index by giving example studies in literature and applied sample analysis in conditions of Turkey and then sustainability of some renewable energy resources is mentioned in global manner by using indicators and index and finally, suggestions about sustainability of energy resources were made

Son yıllarda dünyadaki enerji gereksinimi, belirgin bir artış göstermektedir. Buna bağlı olarak temiz ve sürdürülebilir enerji kaynakları üzerindeki bilimsel araştırmalar ivme kazanmıştır. Bir enerji kaynağının var olması tek başına yeterli değildir aynı zamanda bu enerji kaynağının kapasitesi, çevreyle olan uyumu, ekonomik faktörler, devamlılığı gibi parametrelerde dikkate alınmalıdır. Bu parametreler göz önünde bulundurulduğunda “sürdürülebilirlik” ve “yenilenebilir” kavramları önem kazanmaktadır. Bu çalışmada, öncelikle sürdürülebilirliği değerlendirme araçları literatürde mevcut bilgilerle genel olarak ifade edilmiş ve indeks ve göstergelere dayanan sürdürülebilirlik araçları literatürde yer alan örneklerle açıklanmaya çalışılmış ve Türkiye şartları için örnek uygulamalar yapılmıştır. Daha sonra bazı yenilenebilir enerji kaynakları için küresel sürdürülebilirlik indeks ve göstergelerine değinilerek enerji kaynaklarının sürdürülebilirliğine ilişkin sonuç ve önerilerde bulunulmuştur