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  • Küçük Resim
    Yayın
    Chimney installation and thermal-flow analysis in cogeneration systems
    (Liberty Academic Publishers, 2025) Kaymaz, Rabia; Tanrıver, Kürşat; Ak, Mine
    Bu çalışmada kojenerasyon sistemlerinde baca tasarımının enerji verimliliğine etkisi, çevresel sürdürülebilirlik, kullanılan malzemelerin performansı ve atık ısı geri kazanımı üzerinde detaylı bir çalışma sunulmuştur. Bu çalışmanın girdilerini oluşturmak için Türkiye’de önemli tesisleri barındıran İZAYDAŞ Biyogaz Entegre Elektrik Tesisinde atık yönetimi ve enerji geri kazanım süreçleri incelenmiş; bu süreçlerin daha sürdürülebilir ve verimli hale getirilmesine yönelik iyileştirme önerileri üzerinde odaklanılmıştır. Bu çalışmanın baca tasarımı aşamasında kesit hesaplarının yapılması ve optimizasyonu için Kesa Aladin programı kullanılmıştır. Statik hesaplarda ise Ansys programı yapısal analiz modülünden faydalanılmıştır. Böylelikle kojenerasyon sistemlerinde baca tasarımının iyileştirilmesiyle performans artışı sağlama potansiyelini ve verimlilik hedeflerine ulaşmadaki önemini vurgulayarak okuyuculara farkındalık kazandırılması amaçlanmıştır.
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    Electronic circuit design and case studies in autonomous vehicles
    (İksad Publishing House, 2025) Taş, Kerem Ali; Karabıyık, Mehmet Can; Tanrıver, Kürşat; Ak, Mine
    Autonomous vehicle technologies are advancing rapidly due to the development of sophisticated electronic circuit systems, providing safe and efficient transportation solutions. This study examines electronic circuit designs and case studies used in autonomous vehicles. Fundamental components such as sensor fusion, microcontrollers, motor drivers, and power management are detailed, and their impact on autonomous driving is discussed. The study specifically analyzes environmental perception mechanisms by integrating LIDAR, ultrasonic, and infrared sensors, emphasizing their role in data processing and decision-making. Additionally, energy efficiency and performance optimization are explored through motor driver circuits and battery management systems. A case study involving an autonomous mobile robot demonstrates the design, circuit schematics, and system integration processes step by step. In conclusion, the success of autonomous vehicles largely depends on the precision and reliability of electronic circuits. The design principles and application examples presented in this study aim to contribute to the development of autonomous systems.
  • Küçük Resim
    Yayın
    Impact of structural and CFD analysis on the cost of biogas-fueled gas engine exhaust pipes
    (Ahmet ÇALIK, 2025) Kaymaz, Rabia; Ak, Mine; Tanrıver, Kürşat
    In this study, the effects of exhaust pipe design used in biogas-fueled cogeneration systems on engineering performance and cost were investigated. First, the existing system was analyzed by field work, and then structural analysis was applied with CFD (Computational Fluid Dynamics). The exhaust pipe route, pipe diameter, and material thickness of the existing system were evaluated, and design improvements were suggested. It was determined that the shorter pipeline application with the changes made in the pipe route and layout reduced pressure losses. Despite the use of an exhaust pipe with a smaller diameter and made of thinner material in the proposed new design, compliance with the standards was ensured, and it was shown to be safe against wind loads with finite element analysis. Considering the calculated maximum wind load of 5.52 kN and the weight of the system, the maximum stress value was calculated as 108.691 MPa as a result of the Von Mises stress analysis applied to the exhaust pipe system in the finite element analysis. This value showed that the system was 1.56 times safer. In the deformation analysis, the maximum displacement value was measured as 0.13 mm, and this value is ideal. In the cost analysis, it was determined that the proposed new system provides a cost reduction of approximately 53% compared to the existing system. The results obtained emphasize the importance of engineering analysis in exhaust pipe design, and show the applicability of the approach to increase economic and environmental sustainability in industrial facilities.