Heat and Flow Technology II. 

	Questions on BSc in Mechanical Engineering students 

1. Derive the surface function of a vortex on the water surface!
2. Describe the Euler-turbine equation used for pump and fan.
3. Describe the forward curved radial and backward curved radial fans ideal characteristic curves! 
4. Draw a fan or pump a real curve and compare the theoretical characteristic!
5. Describe the unsteady Bernoulli’s equation and the solution to a reservoir.  Draw up a velocity-time function!
6. Draw a water bulk and explain the working principle!
7 Write down the momentum equation; explain the meaning of the different terms!
8. Apply it on a moving flat plate!
9. Derive the real pressure growing for a sudden cross-section growth and the Borda-Carnot loss!
10. Derive the force of Pelton turbine for one blade and for the whole wheel forces!
a. / Derive the maximum useful power (v2=?)!
11. Derive the Betz-formula for the wind turbine!
12. Describe the Moody diagram for smooth and rough pipes! 
13. Calculate the pressure loss in a straight pipe in different cases!
14. Draw different fittings and their pressure loss calculation!
15, Explain the principle of a thermo dynamic system!
16. What is the thermodynamic equilibrium? 
17. Write the first thermodynamic low for an open end a closed system!
18. Define the second thermodynamic low!
19. Define the Carnot cycle! What is the Carnot efficiency?
20. Define the Clasius Tankin cycle!
21. Define the  Otto and Diesel ideal cycle and the efficiency!   
22.Define the different heat transfers!
23. Write the Fourier equation for conduction!
24. Calculate the heat flux cross a  given wall structure!

 

Budapest 14. February 2018. 						Dr. Ferenc Szlivka
	Professor