PART –I: General Considerations
Module-1: Nomenclature – Concepts – Theoretical aspects
L1: Classification of Fluid Machinery, stage, stator, rotor
L2: Cylindrical co-ordinate system, Moment of momentum, notations
L3: Euler Equation for turbomachinery
L4: Concept of relative velocity, Velocity-vector equation, Velocity triangle
L5: Performance indices like power, efficiency
Module-2: Dimensional Analysis & Similitude
L6: Dimensional Analysis
PART –II: Hydraulic Turbines
Module-3: Impulse Turbines
L8 & L9: Pelton wheel, its geometry and working; performance parameters; conditions for optimum operation
L10: Brief description of a hydel plant; need for governing; governing technique
Module-4: Reaction Turbines
L11: Radial-flow reaction (Francis) turbine; geometry and working; flow at entry; velocity diagram.
L12: Francis turbine contd.; net head across a reaction turbine; draft tube; justification of inward flow arrangement; flow rate; performance parameters;
L13: Axial-flow reaction (propeller and Kaplan turbine); geometry and working; velocity diagram; performance parameters.
L14: Draft tube and cavitation; net positive suction head (NPSH); Installation of reaction turbines.
(Note: An additional lecture may be necessary)
Module-5: Dimensional Analysis & Similitude
L15: Dimensional Analysis; head, flow and power coefficient; nondimensional specific speed.
L16: Similitude; geometric, kinematic and dynamic similarity.
PART –III: Rotodynamic Pumps
Module-6: Centrifugal pumps
L17: Types; geometry and working; elementary pump theory; Euler equation; Bernoulli equation in rotating coordinates
L18: Velocity diagrams at entry and exit of the impeller; output and performance parameters – manometric head, manometric efficiency, overall efficiency; effect of blade angle on pump head.
L19: Pump performance curves and similarity rules; NPSH and cavitation; specific speed for pumps; pumps andf fluid networks.
Module-7: Axial-flow and Mixed-flow Pumps
L 20 & L21: Specific speed and variation of shape; axial-flow pump theory; performance
of axial- and mixed-flow pumps.
Module-8: general Aspects
L22 & L23: Matching of pumps to system characteristics; pumps combined in parallel; multi-stage pumps.
PART –IV: Positive Displacement Pumps
Module-9: Reciprocating pumps
L24: Geometry and working; installation; pressure diagram; pump head and efficiency.
L25: Discharge and its variation with crank angle; pump with air cylinders – indicator diagram; theoretical and actual characteristic.
Module-10: Rotary Pumps
L26 & L27: Gear pump and performance curves; rotary vane pump and characteristics; screw pump.
PART –V: Compressors
Module-11: Centrifugal Compressors
L28: Geometry, definitions, working; velocity diagrams across the impeller.
L29: Theoretical analysis; enthalpy-entropy diagram of a stage; energy equation for the inlet casing, impeller and diffuser; conservation of rothalpy.
L30: Inlet velocity limitations; optimum design of inlet; slip factor and correlations.
L31: Head increase; performance – efficiency; effect of vane angle; diffuser system;
Module-12: 2D Compressor Cascade
L32 & L33: Two-dimensional cascades; cascade nomenclature; Cascade forces – lift and drag; cascade efficiency; losses; cascade correlations.
Module-13: Axial-flow Compressors
L34: Geometry and working; stage – stator and rotor blading; velocity diagram across the rotor;
L35: Thermodynamics of the compressor stage; enthalpy-entropy diagram for a stage; energy equation across the rotor and the diffuser; degree of reaction; stage loading; off-design performance.
L36: Stage pressure rise; pressure ratio of a multistage compressor; work done factor; efficiency;
L37: Stall and surge phenomenon; control of flow instabilities; axial-flow ducted fans.
Module-14: Reciprocating Compressors
L38: Geometry and working; cycle analysis; actual indicator diagram, isothermal and volumetric efficiency.
L39: Effect of multistage compression on volumetric efficiency; effect of intercooling; work of a multistage compressor.
PART –VI: Miscelleneous
Module-15: Hydraulic Transmissions
L40: Fluid coupling
L41: Torque converter
Module-16: Wind Turbine
L42 & L43: Horizontal axis turbine and associated fluid mechanics; geometry and working; general aspects.
Module-17: Power from sea wave
L44: The Wells turbine
Module-18: Pure Reaction Turbine
L45: Lawn sprinkler etc.
(One or two additional lectures may be added later; minor shifting of topics from one lecture to another may be a necessity at the time of actual development of the course material)
1. S.L.Dixon, Fluid Mechanics and Thermodynamics of Turbomachinery, 4e, Butterworth and Heinemann, 1998 (Main text book).
2. J.F.Douglas, J.M.Gasiorek and J.A.Swaffield, Fluid Mechanics, 3e (Ch 22, 23, 24 & 25), Addison-Wesley, 1995 (International Student Edition 1999)
3. B.S.Massey, Mechanics of Fluids, 5e (Ch. 14 &9), Van Nostrand Reinhold (U.K.), 1983.
H.I.H.Saravanamutto, G.F.C.Rogers and H.Cohen, Gas Turbine Theory, 5e (Ch. 4 & 5) Pearson Education (Singapore), 2001.