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Implementation of Variable Pitch Angle Fan Blades on Gas Turbine Engine

This diploma thesis explores methods to enhance the efficiency of gas turbine engines with a focus on high bypass ratio engines. The study is structured around three objectives: (1) reviewing the principles, and advancements of gas turbine engines, (2) analyzing the design features and challenges of high bypass ratio engines, and (3) developing a variable pitch angle fan mechanism to optimize performance.The analysis of high bypass ratio engines details and their advantages, while addressing challenges in thermal management and cooling. The study successfully proposes a conceptual design for a variable pitch angle fan, demonstrating its potential to adapt to varying flight conditions and enhance overall engine efficiency.The findings suggest integrate innovative cooling, sealing technologies, and advanced control systems can significantly improve performance. The proposed variable pitch angle fan mechanism shows promising results in optimizing engine efficiency. This thesis concludes that the implementation of these advancements can achieve a notable increase in gas turbine engine efficiency, contributing to the advancement of aviation technology. Future research should continue to refine these solutions and explore additional methods to enhance engine performance.

Author: Andrejs Kazanli

Supervisor: Aleksandrs Medvedevs

Degree: Bachelor

Year: 2024

Work Language: English

Study programme: Aviation Engineering

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ADVANCEMENTS IN TAILLESS AIRCRAFT TECHNOLOGY: A COMPARATIVE ANALYSIS AND PROPOSAL FOR COMMERCIAL IMPLEMENTATION

The military has a problem in developing the most sophisticated flying wings due to the relevance of tailless aircraft in military applications and the ongoing advancements in the aviation sector. This study paper delves into the extensive history of tailless aircraft, covering everything from their inception to the most cutting-edge designs available today. To develop in control systems, especially fly-by-wire technology, tailless designs are now more practical for commercial use since they are more stable and easier to handle than they were in the past. The main goals of this research are to assess the current literature on important parts of tailless aircraft technology and provide a thorough plan for their commercial deployment.The improved splitter increases the velocity by 40 m/s, although the obtained maximum velocity distribution across the aircraft was 29.3 m/s at the rear end. As a result, the aircraft is designed with higher lift and reduced drag, allowing for smoother flight in a variety of applications.Around 53% of the lift force generated is enhanced by redesigned designs. Based on the results of the study, the aircraft with the improved design had a higher lift force and reduced drag by dividing the airflow.

Author: George Mathew

Supervisor: Adham Ahmed Awad Elsayed Elmenshawy

Degree: Bachelor

Year: 2024

Work Language: English

Study programme: Aviation Engineering

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