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Part A: Theoretical Questions ( 1. What is the relation between Relative, Tangential and Flow Velocities? Write the equation. /15) /0.5) 2. State whether the following velocity vectors are Right OR Wrong based on the Velocity Triangle Method equation that represents the relation between velocity vectors. Write your answer in the boxes. ( /1.5) W U U W W 3. What does NPSPA stand for? Why is it important to calculate?
The following Pipere represents age a. Is this stage for a Compressor OR a Turbine OR you cannot tell? Why? b. Is this stage for Axial OR Radial OR Mixed Turbomachine? C. Is the Velocity Triangle plotted across the RotorOR Stator? Why? ( /1.0) d. Calculate the Degree of Reaction if Static Enthalpies at points 1, 2 and 3 are 500 kJ/kg, 1000 kJ/kg and 1500 kl/kg, respectively. /1.0) tion 5. What are the functions of Stators and Rotors in compressors? /1.0) 5. Calculate the Stagnation Enthalpy if Static Enthalpy is 1000 kJ/kg and Flow Velocity is 500 m/s. ( ( /1.0) /0.5) Conversion /1.0) British St 180 1pm-6 1 the a 1 hp- 1 te
The following Figure represents egy spem, (AIG a. What is the name of the system? What is the name of the associated power cycle? ( 795) bName components: 1, 2 and 3. Indicate the type of energy involved across each component (Power or Heat) (20) and its direction (Required (in) or Produced (out))? Fill the Table. ( Component Name Energy Type (Power or Heat) Direction of Energy (In or Out) 1 2 3 8. Which turbomachines are more likely to have Separation of Boundary Layers (Back Flow) Turbines OR Compressors? Why? ( /10) ( /1.5) 9. Mention three advantages of Hydraulic Turbines compared to other turbines types. /0.5 10. Which hydraulic turbine can produce the maximum amount of power compared to the other types: Pelton OF Francis OR Kaplan? 11. For a Pelton Turbine type, calculate the optimum (maximum) Tangential Velocity if the maximum Flow Velocity is 300 m/s? Conversion 1 Sy IN-1 101150 S hap