Aeroengine Gas Turbine Cycles

By Prof. Chetankumar Sureshbhai Mistry | IIT Kharagpur

Learners enrolled: 1036 | Exam registration: 67

ABOUT THE COURSE:

This course is design based upon fundamental understanding of basics of Thermodynamics and Gas Dynamics that students have learnt in previous year courses. This course aims to give the students the thoughts about the existing and most recent developments in gas turbine technologies application to gas turbine engines one step ahead starting from fundamentals to most recent advancements.

INTENDED AUDIENCE: UG, PG, PhD scholars, Industry working professionals

PREREQUISITES: BE, Having background of Thermodynamics, Gas Dynamics, Gas Turbines, aircraft Propulsion etc.

INDUSTRY SUPPORT: Indian Air Force, Indian Navy, Indian Army, DRDO, ISRO, NAL, HAL, GTRE and companies such as GE, P&W, R&R, Siemens, MHI, MRO, Industrial Digitization etc and many more.

Summary

Course Status :	Ongoing
Course Type :	Core
Language for course content :	English
Duration :	12 weeks
Category :	Aerospace Engineering
Credit Points :	3
Level :	Undergraduate
Start Date :	22 Jul 2024
End Date :	11 Oct 2024
Enrollment Ends :	05 Aug 2024
Exam Registration Ends :	16 Aug 2024
Exam Date :	26 Oct 2024 IST

Note: This exam date is subject to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week-1: Introduction to gas turbine engines used in Aeroengines. Mechanical creation of thrust by all components, fundamentals of Propulsive efficiency, Thermal efficiency, Propeller efficiency, Overall efficiency, Takeoff thrust, Specific fuel consumption, Total Equivalent Horsepower (TEHP), Equivalent Shaft Horse power (ESHP), equivalent specific fuel consumption (ESFC), Aircraft Range and Endurance factor (Tutorials)

Week-2: Control Volume analysis of Inlet Diffuser, Compressor, Combustion chamber, Turbine and Exhaust Nozzle. Adiabatic and Polytropic efficiencies for Compressors and Turbines, Shaft Energy Balance, Use of various components and their special needs in gas turbine engine. (Tutorials)

Week-3: Introduction to Turbojet engine, Single spool turbojet engine, two spool turbojet engine, Cycle analysis of Single spool and Two spool Turbojet Engine with inoperative afterburner. Discussions based of effect of various cycle parameters on performance of engine in detailed for design and cruise conditions. (Tutorials)

Week-4: Introduction to afterburner, Cycle analysis of Two spool Turbojet Engine with operative after burner, Ground and flight condition. Discussions based of effect of various cycle parameters on performance of engine in detailed for design and cruise conditions. (Tutorials)

Week-5: Need for turbofan engines, Classification of turbofan engines, Construction details of turbofan engine, high bypass ratio and low bypass ratio engines, Forward fan unmixed single-spool configuration, Discussions based of effect of various cycle parameters on performance of engine in detailed for design and cruise conditions. (Tutorials)

Week-6: Forward fan unmixed two-spool engines, (a) The fan and low-pressure compressor on one shaft, (b) Fan driven by the Low Pressure Turbine (LPT) and the compressor driven by the High Pressure Turbine (HPT). Discussions based of effect of various cycle parameters on performance of engine in detailed for design and cruise conditions. (Tutorials).

Week-7: Introduction to geared turbofan engine, Forward fan unmixed two-spool engines (c) Geared fan driven by the LPT and the compressor driven by the HPT, Discussions based of effect of various cycle parameters on performance of engine in detailed for design and cruise conditions. (Tutorials).

Week-8: Introduction to three spool engine, Forward fan unmixed three-spool engines, forward fan Mixed flow turbofan two-spool engine, Mixed flow turbofan two-spool engine with after burner. Discussions based of effect of various cycle parameters on performance of engine in detailed for design and cruise conditions. (Tutorials).

Week-9: Recent advancements aircraft engines, Aft fan turbofan engine, Turbofan engine with intercooler and regeneration, Variable cycle engine, Hybrid engines. Discussions based of effect of various cycle parameters on performance of engine in detailed for design and cruise conditions. (Tutorials)

Week-10: Introduction to Turbo prop engines, advantages and disadvantages of turboprop engines, Thermal cycle analysis of Single spool and Two spool Turboprop Engines, comparison between turbojet, turbo fan and turboprop engines. (Tutorials)

Week-11: Introduction to Turbo shaft engines, Thermal cycle analysis of Single spool and Two spool Turboshaft Engines, Propfan Engines. Requirements of subsonic Aircraft schedule. (Tutorials).

Week-12: Engine performance at various flight segments, compressor operating map, turbine operating map, Design point matching of turbine and nozzle, Variable geometry Nozzle performance at off design configuration. Single spool Turbo jet component matching, Engine off design analysis, Engine performance testing.

On completion of this course you will learn….

1.Fundamentals of aeroengine gas turbine cycles and their applications.

2.Fundamentals of parametric cycle analysis and prediction of engine performance.

3.Understand different existing engine configurations, their thermodynamic cycles, their operation, advantages and/or disadvantages/limitations.

4.Able to explore Possible Innovative Gas Turbine Cycles for future aero engines with expected performance parameters.

5.Able to do first cut gas turbine cycle analysis and performance prediction for recent and future aeroengines and to use these data for various engine components design, predictive and preventive maintenance, performance enhancement etc…

Books and references

1. Saravanamuttoo, H.I.H., Rogers G.F.C., Cohen H.; Gas Turbine Theory, 2001, Pearson

2. El-Sayed Ahmed, Aircraft Propulsion and gas Turbine Engines , 2008, T&F,CRC press.

3. Saeed Farokhi, Aircraft Propulsion, 2009, John Wiley & Sons, Inc.

4. Hill Philip, Peterson Carl, Mechanics and Thermodynamics of Propulsion, Second edition, Pearson

5. Mattingly J D , Elements of Propulsion – Gas Turbines and Rockets, 2006, AIAA Education series.

6. Mattingly J D , Aircraft engine design, 2006, AIAA Education series.

7. Klause Hunecke , Jet Engines-Fundamentals of theory, design and Operation, Motor books International.

8. Roy Bhaskar, Aircraft Propulsion, 2008, Elsevier (India)

9. Gordon C. Oates, Aircraft Propulsion Systems Technology and Design, 1989, AIAA Education series.

10. J. H. Horlock, Advanced gas turbine cycles,2003, Elsevier science Ltd.

11. Joachim Kurzke, Ian Halliwell ,Propulsion and Power: An Exploration of Gas Turbine Performance Modeling, 2018, Springer.

12. Research papers from renowned journals

Instructor bio

Prof. Chetankumar Sureshbhai Mistry

IIT Kharagpur

Prof. Chetan S. Mistry is an Assistant Professor in the Department of Aerospace Engineering, IITKharagpur. He has 20 years’ experience in teaching and research. He has done his graduation in Mechanical Engineering from REC, Surat (Presently NIT-Surat). He received his Master’s of Engineering in Turbo Machinery from NIT, Surat; Ph.D. from IIT Bombay. His Ph.D. thesis on “Experimental Investigation on the Performance of a Contra Rotating Fan Stage under Clean and Distorted Inflow Conditions” awarded with “Award for Excellence in Thesis Work”, IIT Bombay in 2014. He is also a recipient of “ASME- IGTI Young Engineer Travel Award” in 2013. His area of research are: Design and performance augmentation strategies for turbomachines, experimental and CFD study of turbomachines, contra rotating axial flow turbomachines aerodynamics, electric propulsion, gas turbine blade cooling techniques Gas turbine blade cooling techniques, fluid mechanics & heat transfer.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 26 October 2024 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Kharagpur .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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