Turbomáquinas

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3 ECTSP2Exame: Obrigatório
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Objectives

The course aims to provide students with a unified knowledge of the operation of various types of turbomachines: 1) based on the basic principles of turbomachine theory: 2) the development of methods for the study of the operating characteristics under design conditions, and operating conditions in off-design and transient situations.

Syllabus

Principles of turbomachinery analysis. Energy transfer and efficiency: single and multi-stage turbomachines. Theory of axial turbomachines: blade cascades, axisymmetric and three-dimensional flow. Three-dimensional flow in radial turbochargers. Dynamic effects (surge and rotating stall). Cavitation in hydraulic turbomachines. Steam and gas axial turbines. Axial compressors, pumps and fans. Centrifugal compressors, fan and pumps. Radial turbines. Hydraulic turbines. Wind turbines. Use of CFD in turbomachinery design. Laboratory test of a turbine or compressor.

Prerequisites

Fluid Mechanics, Thermodynamics.

Cross Competence Component

The laboratory work is to be performed in groups and requires critical and innovative thinking, contributing to teamwork skills and for improving scientific and technical communication among future engineers.

Laboratorial Component

Performance prediction as well as the detailed flow pattern of a turbomachine stage using a template for the Multall-open 3D RANS solver for multistage turbomachines. Laboratory test of a turbine or compressor.

Programming And Computing Component

Students run a 3D RANS solver and post-process the laboratory testing data.

Ethical Principles

All members of a group are responsible for the group’s work In any assessment, every student shall honestly disclose any help received and sources used. In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.