Introduction to TurboMachinary | EveryEng

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Self-paced Beginner

Introduction to TurboMachinary

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304 min

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English

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Team EveryEngMechanical Engineering

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Why enroll

To improve your grades in the NPTEL course “Introduction to Turbomachines,” focus on understanding the core principles of turbomachine design, performance, and applications. Build a strong foundation in thermodynamics, fluid mechanics, and mathematical modeling. Regularly practice numerical problems, review lectures and assignments, and focus on key topics like turbine and compressor design, pump and fan performance, and efficiency optimization. Stay consistent in your study, participate in discussions, and apply concepts to real engineering scenarios to strengthen your understanding and achieve better results.

Your instructor

Team EveryEng

Engineer

Mechanical Engineering

22+ yrs experience·India

Is this course for you?

You should take this if

You work in Aerospace or Automotive
You're a Chemical & Process / Civil & Structural professional
You prefer self-paced learning you can revisit

You should skip if

You need a different specialisation outside Chemical & Process
You need live interaction with an instructor

Course details

This course provides a comprehensive introduction to the fundamental principles and operating concepts of turbomachines, which are widely used in power generation, aerospace, oil and gas, and various industrial applications. Participants will learn about the basic working principles of turbomachinery, including the interaction between fluid flow and rotating components. The course explores the classification of turbomachines such as turbines, compressors, pumps, and fans, along with their practical applications in modern engineering systems. It also covers the thermodynamic analysis of turbomachinery to understand energy transfer, efficiency, and performance characteristics. Learners will study the design principles and operational behavior of turbines and compressors used in energy and propulsion systems. In addition, the course explains pump and fan design, performance curves, and their role in fluid transportation systems. Emphasis is placed on understanding flow dynamics, energy conversion processes, and performance optimization. Real-world engineering examples and case studies help connect theoretical knowledge with practical applications. By the end of the course, participants will gain a strong foundation in turbomachinery concepts and their role in modern mechanical and energy systems. This knowledge will help engineers and professionals improve system efficiency, reliability, and performance in various industrial sectors.

Source: nptelhrd (YouTube Channel)
Prof. Babu Viswanathan, Introduction to Turbomachines, IIT Madras

Course suitable for

Key topics covered

Basic principles of turbomachines
Classification and applications of turbomachines
Thermodynamic analysis of turbomachines
Design and performance of turbines and compressors
Pump and fan design and application

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

21 lectures5 hr 4 min

Introduction
25 min
Basic Theory of Turbomachines - Part-01
13 min
Basic Theory of Turbomachines - Part-02
16 min
Basic Theory of Turbomachines-Part-03
15 min
Basic Theory of Turbomachines-Part-04
10 min
Basic Theory of Turbomachines-Part-05
12 min
Basic Theory of Turbomachines-Part-06
7 min
Hydro Turbomachines - Centrifugal pumps-Part-01
18 min
Hydro Turbomachines - Centrifugal pumps-Part-02
16 min
Hydro Turbomachines - Centrifugal pumps-Part-03
21 min
Hydro Turbomachines - Centrifugal pumps-Part-04
12 min
Hydro Turbomachines - Francis turbine-Part-01
5 min
Hydro Turbomachines - Francis turbine-Part-02
10 min
Hydro Turbomachines - Kaplan turbine
15 min
Hydro Turbomachines - Pelton turbine
25 min
Positive Displacement Pumps - Gear pump
18 min
Thermal Turbomachines - Introduction
20 min
Thermal Turbomachines - Gas turbines
17 min
Thermal Turbomachines - Steam Turbines
17 min
Thermal Turbomachines-Part-01
5 min
Thermal Turbomachines-Part-02
7 min

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Questions and Answers

Q: You're commissioning a small centrifugal compressor and googling 'centrifugal compressor low flow surge noise during startup'. The unit shows oscillating discharge pressure, a rhythmic whooshing sound, and brief shaft torque reversals, but bearing temperatures stay normal. What's the root cause that explains all of those symptoms together?

A: The 10–15% below design flow boundary is where surge shows up first. Pressure oscillation, flow reversal, and torque sign change all sit there, while bearing temps stay calm because nothing is rubbing yet. The other options miss at least one of those signatures.

Q: During a HAZOP you're searching 'what does compressor antisurge valve not protect against overspeed'. The antisurge valve is fully functional but the driver trips late. What physical consequence is the antisurge system NOT intended to prevent?

A: The hard number is 110–120% of rated speed, where rotor stress goes nonlinear. Antisurge manages flow, not angular velocity. Overspeed protection sits with the driver or independent trip logic.

Q: You're specifying materials and searching 'turbomachinery blade material for wet H2S service corrosion fatigue'. The compressor handles wet sour gas at 60°C with trace chlorides. Which degradation mechanism dominates blade life?

A: At H2S partial pressures above a few kPa and moderate temperature, hydrogen-assisted cracking controls life, not wall loss. The environment shifts the failure mode long before classic fatigue limits are reached.

Q: A vendor FAT report doesn't match the GA, and you're googling 'turbine vibration 1x and 2x frequency misalignment'. Field data shows strong 1× and 2× components, stable with speed, and higher axial vibration than radial. What's the most likely root cause?

A: The tell is the 1× plus 2× mix with axial dominance. That pattern shows up when angular or offset misalignment exceeds roughly 0.05–0.1 mm at the coupling, even if balance numbers look clean.