Course

Module-1

Hydraulic machines: Impact of jets on vanes: flat, curved, stationary and moving vanes – radial flow over vanes. Impulse and reaction turbines: Design concepts- performance characteristics- work done and efficiencies. Centrifugal pumps : Working principle – Performance characteristics–Energy transfer and Efficiencies-NPSH Cavitation – Trouble shooting.

Module-2

Thermal turbo machines: Fundamental equation of energy transfer – specific work- representation of specific work in T-S and H-S diagrams – performance – losses and efficiencies – flow coefficient -loading coefficient – degree of reaction – shape number – specific speed – polytropic efficiency -Two-dimensional cascade theory- Cascade nomenclature: lift and drag – losses and efficiency –compressor and turbine cascade performance-correlations for turbine and compressor performance, Hawthorne’s correlation-Soderberg’s correlation

Module-3

Axial flow machines : turbines, compressors, and fans-two-dimensional theory-Velocity diagrams tag losses and efficiency-design and off-design characteristics, Centrifugal compressors–theoretical analysis–impeller, diffuser and casing- optimum design of compressor-inlet pre-whirl slip factor-pressure ratio-choking in a compressor stage-surge, and stall. Radial flow turbines : types of inlet flow –efficiency-off-design characteristics-loss coefficients.
Experiments and CFD: Experimental methods to measure flow and thermal fields in turbo machines
– Application of CFD in analysis and design of turbo machinery

• M., Turbines, Compressors and Fans, Tata Mc Graw Hill, New Delhi,4^th Edition,2011.
• L.DixonandC.A.Hall, Fluid Mechanics, Thermodynamics of Turbo machinery, Pergamon Press,7th Ed., 2014.
• O and Katz.J, Flow measurement Techniques in Turbo machinery, Springer Handbook of Experimental Fluid Mechanics, 2007, pp. 919-957.
• P N Modi.,S.M.Seth.,Hydraulics and Fluid Mechanics including Hydraulic Machines, Standard Book House, 21^st Ed, 2017.
• Journals in Turbo machinery: ASME Journal of Turbo machinery, ASME Journal of Engineering for Gas Turbines and Power, AIAA Journal of Propulsion and Power.

• CO1:Capability to analyze the performance of  turbo machines
• CO2:Ability to select turbo machines for different applications
• CO3:Predict performance of turbo machine using model analysis
• CO4:Conduct research studies on turbo machines to improve their performance