Tutorial — 2D Axial Flow Compressors — Lesson 5

This lesson covers the detailed analysis of axial flow compressors. It starts with a brief recap of the fundamental principles of turbomachinery and axial flow compressors. The lesson then delves into the thermodynamics of the compression process, the role of cascades in axial compressors, and how to analyze an axial compressor using these principles. The lesson also includes a tutorial session where the instructor solves several problems related to axial flow compressors. These problems cover various aspects such as calculating the mass flow rate, power required, degree of reaction, and the number of compressor stages required. The lesson also discusses the significance of velocity triangles in the analysis of axial compressors.

Video Highlights

01:22 - Step-by-step solution of a problem involving an axial flow compressor, including the calculation of the mass flow rate, power required, degree of reaction, and number of compressor stages required.
04:24 - Explanation of the significance of velocity triangles in the analysis of axial compressors.
13:37 - Discussion on the concept of work done factor and its significance in the design of axial compressors.
22:18 - Solution of a second problem involving an axial compressor, including the calculation of the number of stages required and the determination of whether the compressor will suffer from shock losses.
52:18 - Presentation of exercise problems for viewers to solve on their own, based on the concepts discussed in the video.

Key Takeaways

- Understanding the thermodynamics of the compression process is crucial in analyzing axial compressors.
- The cascade plays a significant role in axial compressors, and its data can be used in the analysis.
- The velocity triangle is a fundamental tool in the analysis of axial compressors. It helps in calculating various parameters like mass flow rate, power required, degree of reaction, and the number of compressor stages.
- The presence of guide vanes can affect the inlet velocity of the compressor, introducing an angle to the absolute component of inlet velocity.
- The work done factor is a parameter that accounts for the blockage effect created by the boundary layer in a compressor.